./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f9cd32f4b321d9995f5b714ac7ab8f417de9e23e3b823c49499e1a07b5844c4 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:38:08,653 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:38:08,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:38:08,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:38:08,751 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:38:08,788 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:38:08,789 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:38:08,789 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:38:08,790 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:38:08,790 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:38:08,791 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:38:08,791 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:38:08,791 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:38:08,792 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:38:08,792 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:38:08,793 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:38:08,793 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:38:08,793 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:38:08,794 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:38:08,794 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:38:08,800 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:38:08,800 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:38:08,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:38:08,801 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:38:08,801 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:38:08,801 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:38:08,801 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:38:08,801 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:38:08,802 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:38:08,802 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:38:08,802 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:38:08,802 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:38:08,802 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:38:08,803 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:38:08,803 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:38:08,803 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:38:08,803 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:38:08,803 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:38:08,804 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:38:08,804 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:38:08,806 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:38:08,806 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:38:08,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:38:08,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:38:08,807 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f9cd32f4b321d9995f5b714ac7ab8f417de9e23e3b823c49499e1a07b5844c4 [2024-10-14 20:38:09,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:38:09,075 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:38:09,078 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:38:09,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:38:09,080 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:38:09,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c [2024-10-14 20:38:10,551 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:38:10,764 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:38:10,767 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd2-ll_unwindbound1.c [2024-10-14 20:38:10,776 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231556529/97f0aaa6889a4ea685e5dd09f6ab9223/FLAGb687acc6c [2024-10-14 20:38:11,133 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/231556529/97f0aaa6889a4ea685e5dd09f6ab9223 [2024-10-14 20:38:11,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:38:11,136 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:38:11,137 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:38:11,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:38:11,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:38:11,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,146 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@602092c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11, skipping insertion in model container [2024-10-14 20:38:11,146 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,170 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:38:11,365 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:38:11,379 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:38:11,409 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:38:11,427 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:38:11,427 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11 WrapperNode [2024-10-14 20:38:11,428 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:38:11,429 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:38:11,429 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:38:11,429 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:38:11,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,445 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,472 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 160 [2024-10-14 20:38:11,472 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:38:11,473 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:38:11,473 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:38:11,473 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:38:11,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,499 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 20:38:11,500 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,500 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,504 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,512 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,513 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,516 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:38:11,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:38:11,517 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:38:11,517 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:38:11,518 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (1/1) ... [2024-10-14 20:38:11,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:38:11,538 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:11,554 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 20:38:11,560 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 20:38:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:38:11,598 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 20:38:11,599 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 20:38:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:38:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:38:11,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:38:11,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:38:11,599 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:38:11,655 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:38:11,657 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:38:12,353 INFO L? ?]: Removed 200 outVars from TransFormulas that were not future-live. [2024-10-14 20:38:12,354 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:38:12,394 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:38:12,395 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 20:38:12,396 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:38:12 BoogieIcfgContainer [2024-10-14 20:38:12,396 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:38:12,398 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:38:12,398 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:38:12,401 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:38:12,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:38:11" (1/3) ... [2024-10-14 20:38:12,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6935b184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:38:12, skipping insertion in model container [2024-10-14 20:38:12,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:38:11" (2/3) ... [2024-10-14 20:38:12,403 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6935b184 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:38:12, skipping insertion in model container [2024-10-14 20:38:12,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:38:12" (3/3) ... [2024-10-14 20:38:12,404 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd2-ll_unwindbound1.c [2024-10-14 20:38:12,420 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:38:12,420 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 68 error locations. [2024-10-14 20:38:12,474 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:38:12,481 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;@326cc871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:38:12,482 INFO L334 AbstractCegarLoop]: Starting to check reachability of 68 error locations. [2024-10-14 20:38:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 165 states, 84 states have (on average 1.9047619047619047) internal successors, (160), 153 states have internal predecessors, (160), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:12,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:38:12,492 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:12,492 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:12,493 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:12,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:12,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1933443539, now seen corresponding path program 1 times [2024-10-14 20:38:12,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:12,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155078241] [2024-10-14 20:38:12,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:12,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:12,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:12,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:12,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:12,669 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:38:12,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:12,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155078241] [2024-10-14 20:38:12,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155078241] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:12,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:12,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:38:12,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545483041] [2024-10-14 20:38:12,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:12,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:38:12,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:12,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:38:12,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:38:12,705 INFO L87 Difference]: Start difference. First operand has 165 states, 84 states have (on average 1.9047619047619047) internal successors, (160), 153 states have internal predecessors, (160), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:38:12,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:12,751 INFO L93 Difference]: Finished difference Result 327 states and 367 transitions. [2024-10-14 20:38:12,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:38:12,753 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-10-14 20:38:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:12,763 INFO L225 Difference]: With dead ends: 327 [2024-10-14 20:38:12,763 INFO L226 Difference]: Without dead ends: 161 [2024-10-14 20:38:12,767 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:38:12,772 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:12,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 173 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:38:12,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-10-14 20:38:12,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-10-14 20:38:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 83 states have (on average 1.8433734939759037) internal successors, (153), 150 states have internal predecessors, (153), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:38:12,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 171 transitions. [2024-10-14 20:38:12,828 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 171 transitions. Word has length 13 [2024-10-14 20:38:12,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:12,829 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 171 transitions. [2024-10-14 20:38:12,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:38:12,830 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 171 transitions. [2024-10-14 20:38:12,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-10-14 20:38:12,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:12,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:12,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:38:12,832 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:12,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:12,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1970343789, now seen corresponding path program 1 times [2024-10-14 20:38:12,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:12,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090760695] [2024-10-14 20:38:12,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:12,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:12,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:12,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1162884832] [2024-10-14 20:38:12,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:12,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:12,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:12,890 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 20:38:12,891 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 20:38:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:12,986 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:38:13,007 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:13,158 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-14 20:38:13,159 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:13,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:13,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090760695] [2024-10-14 20:38:13,160 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:13,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1162884832] [2024-10-14 20:38:13,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1162884832] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:13,160 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:13,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:38:13,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302062619] [2024-10-14 20:38:13,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:13,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:38:13,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:13,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:38:13,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:38:13,167 INFO L87 Difference]: Start difference. First operand 161 states and 171 transitions. Second operand has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:38:13,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:13,596 INFO L93 Difference]: Finished difference Result 161 states and 171 transitions. [2024-10-14 20:38:13,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:38:13,597 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 13 [2024-10-14 20:38:13,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:13,599 INFO L225 Difference]: With dead ends: 161 [2024-10-14 20:38:13,599 INFO L226 Difference]: Without dead ends: 159 [2024-10-14 20:38:13,599 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:38:13,601 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 324 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 326 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:13,601 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 249 Invalid, 326 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:38:13,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2024-10-14 20:38:13,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 159. [2024-10-14 20:38:13,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 83 states have (on average 1.819277108433735) internal successors, (151), 148 states have internal predecessors, (151), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:38:13,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 169 transitions. [2024-10-14 20:38:13,627 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 169 transitions. Word has length 13 [2024-10-14 20:38:13,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:13,628 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 169 transitions. [2024-10-14 20:38:13,628 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:38:13,628 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 169 transitions. [2024-10-14 20:38:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-14 20:38:13,629 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:13,629 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:13,647 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 20:38:13,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:13,830 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:13,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:13,831 INFO L85 PathProgramCache]: Analyzing trace with hash 951115354, now seen corresponding path program 1 times [2024-10-14 20:38:13,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:13,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204353992] [2024-10-14 20:38:13,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:13,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:13,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:13,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [497549039] [2024-10-14 20:38:13,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:13,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:13,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:13,851 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 20:38:13,863 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 20:38:13,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:13,898 INFO L255 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-14 20:38:13,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:13,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 20:38:13,982 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:13,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:13,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204353992] [2024-10-14 20:38:13,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:13,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497549039] [2024-10-14 20:38:13,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497549039] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:13,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:13,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 20:38:13,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791510697] [2024-10-14 20:38:13,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:13,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:38:13,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:38:13,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:38:13,989 INFO L87 Difference]: Start difference. First operand 159 states and 169 transitions. Second operand has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:38:14,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:14,497 INFO L93 Difference]: Finished difference Result 159 states and 169 transitions. [2024-10-14 20:38:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:38:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-14 20:38:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:14,500 INFO L225 Difference]: With dead ends: 159 [2024-10-14 20:38:14,500 INFO L226 Difference]: Without dead ends: 158 [2024-10-14 20:38:14,501 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:38:14,502 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 206 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:14,502 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 249 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:38:14,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-14 20:38:14,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2024-10-14 20:38:14,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 83 states have (on average 1.8072289156626506) internal successors, (150), 147 states have internal predecessors, (150), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:38:14,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 168 transitions. [2024-10-14 20:38:14,513 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 168 transitions. Word has length 14 [2024-10-14 20:38:14,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:14,514 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 168 transitions. [2024-10-14 20:38:14,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 4 states have (on average 2.5) internal successors, (10), 6 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-14 20:38:14,514 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 168 transitions. [2024-10-14 20:38:14,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-14 20:38:14,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:14,515 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:14,532 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-14 20:38:14,719 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,SelfDestructingSolverStorable2 [2024-10-14 20:38:14,720 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:14,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:14,721 INFO L85 PathProgramCache]: Analyzing trace with hash 1564000962, now seen corresponding path program 1 times [2024-10-14 20:38:14,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:14,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452992015] [2024-10-14 20:38:14,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:14,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:14,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:14,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:14,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:14,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:14,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:14,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:14,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:14,879 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:14,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:14,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452992015] [2024-10-14 20:38:14,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452992015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:14,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:14,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:38:14,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381002483] [2024-10-14 20:38:14,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:14,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:14,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:14,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:14,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:38:14,882 INFO L87 Difference]: Start difference. First operand 158 states and 168 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:14,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:14,926 INFO L93 Difference]: Finished difference Result 193 states and 203 transitions. [2024-10-14 20:38:14,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:38:14,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 28 [2024-10-14 20:38:14,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:14,928 INFO L225 Difference]: With dead ends: 193 [2024-10-14 20:38:14,928 INFO L226 Difference]: Without dead ends: 162 [2024-10-14 20:38:14,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 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 20:38:14,930 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 11 mSDsluCounter, 306 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:14,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 469 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:38:14,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-14 20:38:14,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-14 20:38:14,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 87 states have (on average 1.7701149425287357) internal successors, (154), 150 states have internal predecessors, (154), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-14 20:38:14,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 172 transitions. [2024-10-14 20:38:14,942 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 172 transitions. Word has length 28 [2024-10-14 20:38:14,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:14,943 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 172 transitions. [2024-10-14 20:38:14,943 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:14,943 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 172 transitions. [2024-10-14 20:38:14,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-14 20:38:14,944 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:14,944 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:14,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 20:38:14,945 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:14,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:14,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1177615479, now seen corresponding path program 1 times [2024-10-14 20:38:14,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:14,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225825754] [2024-10-14 20:38:14,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:14,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:15,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:15,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:15,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:15,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:15,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:15,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:15,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225825754] [2024-10-14 20:38:15,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225825754] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:15,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93794139] [2024-10-14 20:38:15,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:15,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:15,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:15,115 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 20:38:15,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:38:15,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:15,161 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:38:15,163 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:15,194 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:15,195 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:15,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93794139] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:15,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:15,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2024-10-14 20:38:15,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [632867178] [2024-10-14 20:38:15,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:15,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:38:15,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:15,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:38:15,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:38:15,197 INFO L87 Difference]: Start difference. First operand 162 states and 172 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:15,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:15,807 INFO L93 Difference]: Finished difference Result 272 states and 305 transitions. [2024-10-14 20:38:15,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:38:15,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2024-10-14 20:38:15,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:15,809 INFO L225 Difference]: With dead ends: 272 [2024-10-14 20:38:15,809 INFO L226 Difference]: Without dead ends: 262 [2024-10-14 20:38:15,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:38:15,810 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 95 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:15,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 281 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:38:15,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-14 20:38:15,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 217. [2024-10-14 20:38:15,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 217 states, 138 states have (on average 1.7681159420289856) internal successors, (244), 201 states have internal predecessors, (244), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 20:38:15,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 270 transitions. [2024-10-14 20:38:15,824 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 270 transitions. Word has length 32 [2024-10-14 20:38:15,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:15,825 INFO L471 AbstractCegarLoop]: Abstraction has 217 states and 270 transitions. [2024-10-14 20:38:15,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:15,825 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 270 transitions. [2024-10-14 20:38:15,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 20:38:15,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:15,826 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:15,843 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 20:38:16,027 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:16,027 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:16,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:16,028 INFO L85 PathProgramCache]: Analyzing trace with hash -2146343301, now seen corresponding path program 1 times [2024-10-14 20:38:16,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:16,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1548292666] [2024-10-14 20:38:16,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:16,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:16,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:16,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:16,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:16,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,132 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:16,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:16,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1548292666] [2024-10-14 20:38:16,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1548292666] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:16,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:16,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:38:16,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411008398] [2024-10-14 20:38:16,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:16,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:38:16,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:16,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:38:16,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:38:16,135 INFO L87 Difference]: Start difference. First operand 217 states and 270 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:16,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:16,228 INFO L93 Difference]: Finished difference Result 411 states and 472 transitions. [2024-10-14 20:38:16,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 20:38:16,229 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 33 [2024-10-14 20:38:16,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:16,242 INFO L225 Difference]: With dead ends: 411 [2024-10-14 20:38:16,242 INFO L226 Difference]: Without dead ends: 215 [2024-10-14 20:38:16,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:38:16,244 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 61 mSDsluCounter, 753 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 913 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:16,244 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 913 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:38:16,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-10-14 20:38:16,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 181. [2024-10-14 20:38:16,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 104 states have (on average 1.7019230769230769) internal successors, (177), 168 states have internal predecessors, (177), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:16,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 197 transitions. [2024-10-14 20:38:16,273 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 197 transitions. Word has length 33 [2024-10-14 20:38:16,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:16,274 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 197 transitions. [2024-10-14 20:38:16,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:16,274 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 197 transitions. [2024-10-14 20:38:16,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 20:38:16,279 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:16,279 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:16,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 20:38:16,279 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:16,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:16,279 INFO L85 PathProgramCache]: Analyzing trace with hash -2112070261, now seen corresponding path program 1 times [2024-10-14 20:38:16,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:16,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397444249] [2024-10-14 20:38:16,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:16,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:16,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:16,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:16,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:16,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,439 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:16,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:16,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397444249] [2024-10-14 20:38:16,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397444249] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:16,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189255932] [2024-10-14 20:38:16,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:16,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:16,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:16,441 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 20:38:16,443 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 20:38:16,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:16,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:38:16,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:16,590 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:16,590 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:16,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189255932] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:16,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:16,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:16,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897977103] [2024-10-14 20:38:16,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:16,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:16,594 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:16,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:16,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:16,594 INFO L87 Difference]: Start difference. First operand 181 states and 197 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:17,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:17,114 INFO L93 Difference]: Finished difference Result 199 states and 220 transitions. [2024-10-14 20:38:17,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:17,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2024-10-14 20:38:17,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:17,115 INFO L225 Difference]: With dead ends: 199 [2024-10-14 20:38:17,116 INFO L226 Difference]: Without dead ends: 198 [2024-10-14 20:38:17,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:17,116 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 144 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:17,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 198 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:38:17,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2024-10-14 20:38:17,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 181. [2024-10-14 20:38:17,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 104 states have (on average 1.6923076923076923) internal successors, (176), 168 states have internal predecessors, (176), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:17,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 196 transitions. [2024-10-14 20:38:17,128 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 196 transitions. Word has length 34 [2024-10-14 20:38:17,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:17,128 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 196 transitions. [2024-10-14 20:38:17,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:17,128 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 196 transitions. [2024-10-14 20:38:17,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-14 20:38:17,129 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:17,129 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:17,145 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 20:38:17,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:17,334 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:17,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:17,334 INFO L85 PathProgramCache]: Analyzing trace with hash -2112132818, now seen corresponding path program 1 times [2024-10-14 20:38:17,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:17,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304388350] [2024-10-14 20:38:17,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:17,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:17,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:17,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,425 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:17,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:17,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304388350] [2024-10-14 20:38:17,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304388350] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:17,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:17,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 20:38:17,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194264739] [2024-10-14 20:38:17,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:17,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 20:38:17,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:17,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 20:38:17,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:38:17,430 INFO L87 Difference]: Start difference. First operand 181 states and 196 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:17,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:17,490 INFO L93 Difference]: Finished difference Result 197 states and 207 transitions. [2024-10-14 20:38:17,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:38:17,491 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2024-10-14 20:38:17,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:17,492 INFO L225 Difference]: With dead ends: 197 [2024-10-14 20:38:17,492 INFO L226 Difference]: Without dead ends: 196 [2024-10-14 20:38:17,493 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-14 20:38:17,493 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 39 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 759 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:17,493 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 759 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:38:17,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-10-14 20:38:17,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 181. [2024-10-14 20:38:17,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 104 states have (on average 1.6826923076923077) internal successors, (175), 168 states have internal predecessors, (175), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:17,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 195 transitions. [2024-10-14 20:38:17,504 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 195 transitions. Word has length 34 [2024-10-14 20:38:17,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:17,505 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 195 transitions. [2024-10-14 20:38:17,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:17,506 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 195 transitions. [2024-10-14 20:38:17,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-14 20:38:17,507 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:17,507 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:17,507 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 20:38:17,507 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:17,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:17,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1049668453, now seen corresponding path program 1 times [2024-10-14 20:38:17,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:17,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801623140] [2024-10-14 20:38:17,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:17,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:17,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:17,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:17,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,604 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:17,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:17,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801623140] [2024-10-14 20:38:17,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801623140] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:17,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870719533] [2024-10-14 20:38:17,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:17,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:17,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:17,608 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 20:38:17,609 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 20:38:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:17,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:38:17,653 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:17,741 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:17,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:17,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870719533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:17,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:17,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:17,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617784865] [2024-10-14 20:38:17,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:17,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:17,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:17,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:17,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:17,743 INFO L87 Difference]: Start difference. First operand 181 states and 195 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:18,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:18,429 INFO L93 Difference]: Finished difference Result 190 states and 206 transitions. [2024-10-14 20:38:18,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:18,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-10-14 20:38:18,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:18,431 INFO L225 Difference]: With dead ends: 190 [2024-10-14 20:38:18,431 INFO L226 Difference]: Without dead ends: 189 [2024-10-14 20:38:18,431 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:18,431 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 15 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:18,432 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 303 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:38:18,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-10-14 20:38:18,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 181. [2024-10-14 20:38:18,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 104 states have (on average 1.6730769230769231) internal successors, (174), 168 states have internal predecessors, (174), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 194 transitions. [2024-10-14 20:38:18,440 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 194 transitions. Word has length 35 [2024-10-14 20:38:18,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:18,440 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 194 transitions. [2024-10-14 20:38:18,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:18,440 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 194 transitions. [2024-10-14 20:38:18,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-14 20:38:18,441 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:18,441 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:18,458 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:38:18,642 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 20:38:18,642 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:18,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:18,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1820016525, now seen corresponding path program 1 times [2024-10-14 20:38:18,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:18,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933782431] [2024-10-14 20:38:18,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:18,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:18,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:18,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:18,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:18,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:18,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:18,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:18,727 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:18,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:18,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933782431] [2024-10-14 20:38:18,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933782431] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:18,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348619393] [2024-10-14 20:38:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:18,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:18,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:18,734 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 20:38:18,736 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 20:38:18,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:18,780 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:38:18,782 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:18,828 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:18,828 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:18,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348619393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:18,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:18,830 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:18,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1340610573] [2024-10-14 20:38:18,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:18,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:18,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:18,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:18,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:18,833 INFO L87 Difference]: Start difference. First operand 181 states and 194 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:19,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:19,331 INFO L93 Difference]: Finished difference Result 196 states and 209 transitions. [2024-10-14 20:38:19,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:19,331 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-10-14 20:38:19,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:19,332 INFO L225 Difference]: With dead ends: 196 [2024-10-14 20:38:19,332 INFO L226 Difference]: Without dead ends: 195 [2024-10-14 20:38:19,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:19,333 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 31 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:19,333 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 264 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:38:19,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-14 20:38:19,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 181. [2024-10-14 20:38:19,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 104 states have (on average 1.6634615384615385) internal successors, (173), 168 states have internal predecessors, (173), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:19,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 193 transitions. [2024-10-14 20:38:19,343 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 193 transitions. Word has length 36 [2024-10-14 20:38:19,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:19,343 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 193 transitions. [2024-10-14 20:38:19,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:19,346 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 193 transitions. [2024-10-14 20:38:19,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-14 20:38:19,347 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:19,347 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:19,363 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 20:38:19,548 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 20:38:19,549 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:19,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:19,549 INFO L85 PathProgramCache]: Analyzing trace with hash 585937629, now seen corresponding path program 1 times [2024-10-14 20:38:19,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:19,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060158492] [2024-10-14 20:38:19,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:19,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:19,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:19,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:19,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:19,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:19,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:19,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:19,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:19,626 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:19,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060158492] [2024-10-14 20:38:19,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060158492] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:19,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978280972] [2024-10-14 20:38:19,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:19,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:19,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:19,629 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 20:38:19,631 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 20:38:19,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:19,674 INFO L255 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:38:19,675 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:19,852 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:19,852 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:19,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978280972] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:19,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:19,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:19,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540684177] [2024-10-14 20:38:19,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:19,853 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:19,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:19,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:19,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:19,854 INFO L87 Difference]: Start difference. First operand 181 states and 193 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:20,327 INFO L93 Difference]: Finished difference Result 196 states and 208 transitions. [2024-10-14 20:38:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:20,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 37 [2024-10-14 20:38:20,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:20,329 INFO L225 Difference]: With dead ends: 196 [2024-10-14 20:38:20,329 INFO L226 Difference]: Without dead ends: 195 [2024-10-14 20:38:20,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:20,330 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 29 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:20,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 266 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 20:38:20,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-14 20:38:20,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 181. [2024-10-14 20:38:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 104 states have (on average 1.6538461538461537) internal successors, (172), 168 states have internal predecessors, (172), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:20,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 192 transitions. [2024-10-14 20:38:20,337 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 192 transitions. Word has length 37 [2024-10-14 20:38:20,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:20,337 INFO L471 AbstractCegarLoop]: Abstraction has 181 states and 192 transitions. [2024-10-14 20:38:20,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:20,338 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 192 transitions. [2024-10-14 20:38:20,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-14 20:38:20,338 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:20,339 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:20,352 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-14 20:38:20,539 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 20:38:20,539 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr50ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:20,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:20,540 INFO L85 PathProgramCache]: Analyzing trace with hash 379353250, now seen corresponding path program 1 times [2024-10-14 20:38:20,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:20,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644270824] [2024-10-14 20:38:20,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:20,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:20,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:20,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:20,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:20,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:20,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:20,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:20,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:20,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:20,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:20,697 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:20,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:20,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644270824] [2024-10-14 20:38:20,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644270824] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:20,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:20,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:38:20,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18169862] [2024-10-14 20:38:20,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:20,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:38:20,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:20,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:38:20,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:38:20,699 INFO L87 Difference]: Start difference. First operand 181 states and 192 transitions. Second operand has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:21,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:21,450 INFO L93 Difference]: Finished difference Result 192 states and 207 transitions. [2024-10-14 20:38:21,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:38:21,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 39 [2024-10-14 20:38:21,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:21,452 INFO L225 Difference]: With dead ends: 192 [2024-10-14 20:38:21,452 INFO L226 Difference]: Without dead ends: 191 [2024-10-14 20:38:21,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:38:21,453 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 15 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:21,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 533 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 20:38:21,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-14 20:38:21,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 182. [2024-10-14 20:38:21,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 105 states have (on average 1.6476190476190475) internal successors, (173), 169 states have internal predecessors, (173), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:21,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 193 transitions. [2024-10-14 20:38:21,461 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 193 transitions. Word has length 39 [2024-10-14 20:38:21,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:21,461 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 193 transitions. [2024-10-14 20:38:21,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.5) internal successors, (22), 5 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:21,461 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 193 transitions. [2024-10-14 20:38:21,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 20:38:21,462 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:21,462 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:21,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 20:38:21,463 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr51ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:21,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:21,463 INFO L85 PathProgramCache]: Analyzing trace with hash -1124950959, now seen corresponding path program 1 times [2024-10-14 20:38:21,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:21,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857704897] [2024-10-14 20:38:21,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:21,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:21,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [491332044] [2024-10-14 20:38:21,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:21,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:21,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:21,476 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 20:38:21,477 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 20:38:21,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:21,523 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:38:21,525 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:21,593 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:21,594 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:21,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:21,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857704897] [2024-10-14 20:38:21,594 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:21,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491332044] [2024-10-14 20:38:21,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491332044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:21,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:21,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 20:38:21,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487282959] [2024-10-14 20:38:21,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:21,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:21,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:21,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:21,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 20:38:21,596 INFO L87 Difference]: Start difference. First operand 182 states and 193 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:22,255 INFO L93 Difference]: Finished difference Result 192 states and 206 transitions. [2024-10-14 20:38:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:22,255 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-14 20:38:22,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:22,256 INFO L225 Difference]: With dead ends: 192 [2024-10-14 20:38:22,256 INFO L226 Difference]: Without dead ends: 191 [2024-10-14 20:38:22,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 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 20:38:22,257 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 17 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:22,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 342 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:38:22,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-14 20:38:22,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 183. [2024-10-14 20:38:22,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 106 states have (on average 1.6415094339622642) internal successors, (174), 170 states have internal predecessors, (174), 10 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2024-10-14 20:38:22,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 194 transitions. [2024-10-14 20:38:22,265 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 194 transitions. Word has length 40 [2024-10-14 20:38:22,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:22,265 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 194 transitions. [2024-10-14 20:38:22,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:22,266 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 194 transitions. [2024-10-14 20:38:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-10-14 20:38:22,266 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:22,266 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:22,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-14 20:38:22,467 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,SelfDestructingSolverStorable12 [2024-10-14 20:38:22,467 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr52ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:22,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:22,468 INFO L85 PathProgramCache]: Analyzing trace with hash -513741180, now seen corresponding path program 1 times [2024-10-14 20:38:22,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:22,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447632182] [2024-10-14 20:38:22,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:22,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:22,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [21381769] [2024-10-14 20:38:22,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:22,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:22,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:22,480 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 20:38:22,481 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 20:38:22,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:22,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:38:22,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:22,556 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:22,556 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:22,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:22,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447632182] [2024-10-14 20:38:22,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:22,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21381769] [2024-10-14 20:38:22,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [21381769] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:22,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:22,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:38:22,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745120763] [2024-10-14 20:38:22,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:22,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:38:22,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:22,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:38:22,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:38:22,558 INFO L87 Difference]: Start difference. First operand 183 states and 194 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:22,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:22,654 INFO L93 Difference]: Finished difference Result 285 states and 308 transitions. [2024-10-14 20:38:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:38:22,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 41 [2024-10-14 20:38:22,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:22,657 INFO L225 Difference]: With dead ends: 285 [2024-10-14 20:38:22,657 INFO L226 Difference]: Without dead ends: 277 [2024-10-14 20:38:22,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 39 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 20:38:22,658 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 81 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:22,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 285 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:38:22,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-10-14 20:38:22,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 239. [2024-10-14 20:38:22,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 158 states have (on average 1.6962025316455696) internal successors, (268), 222 states have internal predecessors, (268), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 20:38:22,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 296 transitions. [2024-10-14 20:38:22,667 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 296 transitions. Word has length 41 [2024-10-14 20:38:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:22,667 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 296 transitions. [2024-10-14 20:38:22,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 296 transitions. [2024-10-14 20:38:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:38:22,668 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:22,668 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:22,685 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 20:38:22,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 20:38:22,869 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:22,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:22,869 INFO L85 PathProgramCache]: Analyzing trace with hash -981947282, now seen corresponding path program 1 times [2024-10-14 20:38:22,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:22,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012925543] [2024-10-14 20:38:22,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:22,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:22,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:22,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:22,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:22,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:22,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:22,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:22,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 20:38:22,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:22,951 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:22,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:22,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012925543] [2024-10-14 20:38:22,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012925543] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:22,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270452041] [2024-10-14 20:38:22,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:22,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:22,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:22,955 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 20:38:22,956 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 20:38:23,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,004 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:38:23,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:23,085 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:23,085 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:23,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270452041] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:23,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:23,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:23,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640397440] [2024-10-14 20:38:23,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:23,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:23,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:23,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:23,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:23,087 INFO L87 Difference]: Start difference. First operand 239 states and 296 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:23,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:23,414 INFO L93 Difference]: Finished difference Result 248 states and 307 transitions. [2024-10-14 20:38:23,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:23,414 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 43 [2024-10-14 20:38:23,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:23,415 INFO L225 Difference]: With dead ends: 248 [2024-10-14 20:38:23,415 INFO L226 Difference]: Without dead ends: 247 [2024-10-14 20:38:23,416 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:23,416 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 137 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:23,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 213 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:38:23,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-14 20:38:23,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 240. [2024-10-14 20:38:23,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 159 states have (on average 1.6918238993710693) internal successors, (269), 222 states have internal predecessors, (269), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 20:38:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 297 transitions. [2024-10-14 20:38:23,426 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 297 transitions. Word has length 43 [2024-10-14 20:38:23,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:23,426 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 297 transitions. [2024-10-14 20:38:23,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:23,426 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 297 transitions. [2024-10-14 20:38:23,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 20:38:23,427 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:23,427 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:23,440 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-14 20:38:23,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-10-14 20:38:23,628 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:23,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:23,628 INFO L85 PathProgramCache]: Analyzing trace with hash -375594463, now seen corresponding path program 1 times [2024-10-14 20:38:23,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:23,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362298610] [2024-10-14 20:38:23,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:23,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:23,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:23,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:23,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:23,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 20:38:23,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,714 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:23,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:23,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362298610] [2024-10-14 20:38:23,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362298610] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:23,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560699062] [2024-10-14 20:38:23,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:23,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:23,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:23,717 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 20:38:23,719 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 20:38:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:23,766 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:38:23,767 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:23,845 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:23,846 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:23,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560699062] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:23,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:23,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:23,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391694203] [2024-10-14 20:38:23,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:23,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:23,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:23,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:23,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:23,847 INFO L87 Difference]: Start difference. First operand 240 states and 297 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:24,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:24,148 INFO L93 Difference]: Finished difference Result 248 states and 306 transitions. [2024-10-14 20:38:24,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:24,148 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 44 [2024-10-14 20:38:24,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:24,150 INFO L225 Difference]: With dead ends: 248 [2024-10-14 20:38:24,150 INFO L226 Difference]: Without dead ends: 247 [2024-10-14 20:38:24,150 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:24,150 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 124 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:24,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 228 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:38:24,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2024-10-14 20:38:24,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 241. [2024-10-14 20:38:24,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 160 states have (on average 1.6875) internal successors, (270), 223 states have internal predecessors, (270), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 20:38:24,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 298 transitions. [2024-10-14 20:38:24,160 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 298 transitions. Word has length 44 [2024-10-14 20:38:24,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:24,160 INFO L471 AbstractCegarLoop]: Abstraction has 241 states and 298 transitions. [2024-10-14 20:38:24,160 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:24,160 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 298 transitions. [2024-10-14 20:38:24,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-14 20:38:24,161 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:24,161 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:24,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-14 20:38:24,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-14 20:38:24,362 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr54ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:24,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:24,362 INFO L85 PathProgramCache]: Analyzing trace with hash 215970918, now seen corresponding path program 1 times [2024-10-14 20:38:24,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:24,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736813600] [2024-10-14 20:38:24,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:24,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:24,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:24,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:24,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:24,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:24,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:24,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:24,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:24,467 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:24,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:24,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736813600] [2024-10-14 20:38:24,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736813600] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:24,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:24,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:38:24,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355494126] [2024-10-14 20:38:24,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:24,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:38:24,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:38:24,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:38:24,471 INFO L87 Difference]: Start difference. First operand 241 states and 298 transitions. Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:24,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:24,659 INFO L93 Difference]: Finished difference Result 252 states and 311 transitions. [2024-10-14 20:38:24,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:38:24,659 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 43 [2024-10-14 20:38:24,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:24,660 INFO L225 Difference]: With dead ends: 252 [2024-10-14 20:38:24,661 INFO L226 Difference]: Without dead ends: 249 [2024-10-14 20:38:24,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:38:24,662 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 14 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:24,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 452 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:38:24,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-14 20:38:24,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 246. [2024-10-14 20:38:24,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 165 states have (on average 1.6666666666666667) internal successors, (275), 228 states have internal predecessors, (275), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 20:38:24,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 303 transitions. [2024-10-14 20:38:24,673 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 303 transitions. Word has length 43 [2024-10-14 20:38:24,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:24,673 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 303 transitions. [2024-10-14 20:38:24,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.5) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:24,673 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 303 transitions. [2024-10-14 20:38:24,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 20:38:24,674 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:24,674 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:24,674 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 20:38:24,674 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr55ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:24,675 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:24,676 INFO L85 PathProgramCache]: Analyzing trace with hash -1894835947, now seen corresponding path program 1 times [2024-10-14 20:38:24,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:24,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203270396] [2024-10-14 20:38:24,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:24,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:24,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:24,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1762185010] [2024-10-14 20:38:24,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:24,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:24,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:24,691 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 20:38:24,692 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 20:38:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:24,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:38:24,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:24,804 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:24,805 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:24,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:24,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203270396] [2024-10-14 20:38:24,805 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:24,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762185010] [2024-10-14 20:38:24,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1762185010] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:24,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:24,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:38:24,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77811162] [2024-10-14 20:38:24,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:24,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:38:24,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:24,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:38:24,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:38:24,807 INFO L87 Difference]: Start difference. First operand 246 states and 303 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:25,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:25,077 INFO L93 Difference]: Finished difference Result 250 states and 308 transitions. [2024-10-14 20:38:25,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:38:25,078 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-10-14 20:38:25,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:25,079 INFO L225 Difference]: With dead ends: 250 [2024-10-14 20:38:25,079 INFO L226 Difference]: Without dead ends: 249 [2024-10-14 20:38:25,080 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:38:25,080 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 12 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:25,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 545 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 20:38:25,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-14 20:38:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 247. [2024-10-14 20:38:25,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 166 states have (on average 1.6626506024096386) internal successors, (276), 229 states have internal predecessors, (276), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 20:38:25,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 304 transitions. [2024-10-14 20:38:25,089 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 304 transitions. Word has length 44 [2024-10-14 20:38:25,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:25,089 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 304 transitions. [2024-10-14 20:38:25,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:25,090 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 304 transitions. [2024-10-14 20:38:25,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 20:38:25,090 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:25,090 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:25,107 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 20:38:25,294 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,SelfDestructingSolverStorable17 [2024-10-14 20:38:25,295 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:25,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:25,295 INFO L85 PathProgramCache]: Analyzing trace with hash -944633550, now seen corresponding path program 1 times [2024-10-14 20:38:25,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:25,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852147494] [2024-10-14 20:38:25,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:25,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:25,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:25,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:25,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:25,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:25,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:25,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:25,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:25,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 20:38:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:25,369 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:25,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:25,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852147494] [2024-10-14 20:38:25,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852147494] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:25,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685948980] [2024-10-14 20:38:25,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:25,370 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:25,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:25,372 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 20:38:25,373 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 20:38:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:25,418 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:38:25,419 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:25,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:25,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685948980] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:25,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:25,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:25,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797839237] [2024-10-14 20:38:25,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:25,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:25,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:25,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:25,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:25,472 INFO L87 Difference]: Start difference. First operand 247 states and 304 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:25,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:25,920 INFO L93 Difference]: Finished difference Result 250 states and 307 transitions. [2024-10-14 20:38:25,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:25,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 47 [2024-10-14 20:38:25,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:25,922 INFO L225 Difference]: With dead ends: 250 [2024-10-14 20:38:25,922 INFO L226 Difference]: Without dead ends: 249 [2024-10-14 20:38:25,922 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:25,923 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 10 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:25,923 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 405 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:38:25,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-14 20:38:25,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2024-10-14 20:38:25,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 167 states have (on average 1.658682634730539) internal successors, (277), 230 states have internal predecessors, (277), 14 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-14 20:38:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 305 transitions. [2024-10-14 20:38:25,933 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 305 transitions. Word has length 47 [2024-10-14 20:38:25,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:25,933 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 305 transitions. [2024-10-14 20:38:25,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:25,934 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 305 transitions. [2024-10-14 20:38:25,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-10-14 20:38:25,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:25,934 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:25,950 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-10-14 20:38:26,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:26,135 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:26,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:26,136 INFO L85 PathProgramCache]: Analyzing trace with hash 128790039, now seen corresponding path program 1 times [2024-10-14 20:38:26,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:26,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076320509] [2024-10-14 20:38:26,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:26,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:26,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:26,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:26,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:26,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:26,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:26,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076320509] [2024-10-14 20:38:26,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076320509] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:26,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:38:26,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 20:38:26,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930944308] [2024-10-14 20:38:26,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:26,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 20:38:26,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:26,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 20:38:26,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 20:38:26,182 INFO L87 Difference]: Start difference. First operand 248 states and 305 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:26,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:26,217 INFO L93 Difference]: Finished difference Result 284 states and 341 transitions. [2024-10-14 20:38:26,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 20:38:26,218 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 46 [2024-10-14 20:38:26,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:26,219 INFO L225 Difference]: With dead ends: 284 [2024-10-14 20:38:26,219 INFO L226 Difference]: Without dead ends: 84 [2024-10-14 20:38:26,219 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:38:26,220 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 34 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:26,220 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 264 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:38:26,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-14 20:38:26,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 82. [2024-10-14 20:38:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 60 states have (on average 1.2166666666666666) internal successors, (73), 72 states have internal predecessors, (73), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-14 20:38:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 85 transitions. [2024-10-14 20:38:26,225 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 85 transitions. Word has length 46 [2024-10-14 20:38:26,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:26,226 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 85 transitions. [2024-10-14 20:38:26,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-10-14 20:38:26,226 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 85 transitions. [2024-10-14 20:38:26,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 20:38:26,227 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:26,227 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:26,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 20:38:26,227 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr67ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:26,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:26,228 INFO L85 PathProgramCache]: Analyzing trace with hash 781131237, now seen corresponding path program 1 times [2024-10-14 20:38:26,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:26,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762732714] [2024-10-14 20:38:26,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:26,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:26,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:26,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:26,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 20:38:26,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,304 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 3 proven. 6 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:26,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762732714] [2024-10-14 20:38:26,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [762732714] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:26,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [400963427] [2024-10-14 20:38:26,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:26,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:26,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:26,307 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 20:38:26,309 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 20:38:26,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,358 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-14 20:38:26,359 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:26,470 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:26,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:38:26,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [400963427] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:38:26,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:26,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-14 20:38:26,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337987029] [2024-10-14 20:38:26,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:38:26,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 20:38:26,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:26,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 20:38:26,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:26,471 INFO L87 Difference]: Start difference. First operand 82 states and 85 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:26,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:26,691 INFO L93 Difference]: Finished difference Result 84 states and 86 transitions. [2024-10-14 20:38:26,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 20:38:26,692 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 48 [2024-10-14 20:38:26,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:26,692 INFO L225 Difference]: With dead ends: 84 [2024-10-14 20:38:26,692 INFO L226 Difference]: Without dead ends: 66 [2024-10-14 20:38:26,693 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-14 20:38:26,693 INFO L432 NwaCegarLoop]: 61 mSDtfsCounter, 9 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:26,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 117 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:38:26,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-14 20:38:26,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2024-10-14 20:38:26,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 46 states have (on average 1.2608695652173914) internal successors, (58), 58 states have internal predecessors, (58), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:38:26,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 68 transitions. [2024-10-14 20:38:26,697 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 68 transitions. Word has length 48 [2024-10-14 20:38:26,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:26,698 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 68 transitions. [2024-10-14 20:38:26,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 20:38:26,698 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 68 transitions. [2024-10-14 20:38:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 20:38:26,699 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:26,699 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:26,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-14 20:38:26,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:26,900 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:26,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:26,900 INFO L85 PathProgramCache]: Analyzing trace with hash -302476033, now seen corresponding path program 1 times [2024-10-14 20:38:26,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:26,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29905725] [2024-10-14 20:38:26,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:26,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 20:38:26,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-14 20:38:26,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 20:38:26,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 20:38:26,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:26,999 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:26,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:26,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29905725] [2024-10-14 20:38:26,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29905725] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:26,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949606776] [2024-10-14 20:38:26,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:26,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:27,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:27,001 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 20:38:27,004 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 20:38:27,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:27,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 20:38:27,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:27,123 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:27,123 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:38:27,229 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:38:27,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949606776] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:38:27,229 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 20:38:27,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 7] total 16 [2024-10-14 20:38:27,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381456390] [2024-10-14 20:38:27,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 20:38:27,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-14 20:38:27,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:27,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-14 20:38:27,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-14 20:38:27,231 INFO L87 Difference]: Start difference. First operand 66 states and 68 transitions. Second operand has 17 states, 16 states have (on average 4.375) internal successors, (70), 17 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 20:38:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:27,316 INFO L93 Difference]: Finished difference Result 66 states and 68 transitions. [2024-10-14 20:38:27,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:38:27,317 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 4.375) internal successors, (70), 17 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 47 [2024-10-14 20:38:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:27,317 INFO L225 Difference]: With dead ends: 66 [2024-10-14 20:38:27,317 INFO L226 Difference]: Without dead ends: 65 [2024-10-14 20:38:27,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=128, Invalid=334, Unknown=0, NotChecked=0, Total=462 [2024-10-14 20:38:27,318 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 80 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:27,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 431 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:38:27,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-10-14 20:38:27,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-10-14 20:38:27,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 46 states have (on average 1.2391304347826086) internal successors, (57), 57 states have internal predecessors, (57), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:38:27,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 67 transitions. [2024-10-14 20:38:27,322 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 67 transitions. Word has length 47 [2024-10-14 20:38:27,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:27,322 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 67 transitions. [2024-10-14 20:38:27,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 4.375) internal successors, (70), 17 states have internal predecessors, (70), 3 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-14 20:38:27,322 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 67 transitions. [2024-10-14 20:38:27,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-14 20:38:27,323 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:27,323 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:27,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-14 20:38:27,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:27,524 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr56ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:27,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:27,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1378310374, now seen corresponding path program 1 times [2024-10-14 20:38:27,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:27,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321506432] [2024-10-14 20:38:27,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:27,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:27,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:27,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1711226829] [2024-10-14 20:38:27,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:27,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:27,537 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:27,538 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 20:38:27,540 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 20:38:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:27,588 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:38:27,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:27,845 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:27,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:38:40,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:40,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321506432] [2024-10-14 20:38:40,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:40,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711226829] [2024-10-14 20:38:40,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711226829] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:40,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:40,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:38:40,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568497010] [2024-10-14 20:38:40,668 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:38:40,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:38:40,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:40,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:38:40,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=96, Unknown=3, NotChecked=0, Total=132 [2024-10-14 20:38:40,670 INFO L87 Difference]: Start difference. First operand 65 states and 67 transitions. Second operand has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:38:40,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:40,775 INFO L93 Difference]: Finished difference Result 65 states and 67 transitions. [2024-10-14 20:38:40,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:38:40,775 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 49 [2024-10-14 20:38:40,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:40,776 INFO L225 Difference]: With dead ends: 65 [2024-10-14 20:38:40,776 INFO L226 Difference]: Without dead ends: 64 [2024-10-14 20:38:40,776 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=33, Invalid=96, Unknown=3, NotChecked=0, Total=132 [2024-10-14 20:38:40,777 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 30 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:40,777 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 175 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:38:40,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-14 20:38:40,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-10-14 20:38:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 46 states have (on average 1.2173913043478262) internal successors, (56), 56 states have internal predecessors, (56), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:38:40,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2024-10-14 20:38:40,781 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 49 [2024-10-14 20:38:40,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:40,781 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2024-10-14 20:38:40,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.0) internal successors, (35), 8 states have internal predecessors, (35), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:38:40,782 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2024-10-14 20:38:40,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 20:38:40,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:40,782 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:40,799 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-14 20:38:40,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-10-14 20:38:40,987 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr57ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:40,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:40,987 INFO L85 PathProgramCache]: Analyzing trace with hash -222051172, now seen corresponding path program 1 times [2024-10-14 20:38:40,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:40,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447555337] [2024-10-14 20:38:40,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:40,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:40,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:40,996 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1188005157] [2024-10-14 20:38:40,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:40,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:40,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:40,998 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:38:40,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-14 20:38:41,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:41,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:38:41,054 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:41,290 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:41,291 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:38:46,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447555337] [2024-10-14 20:38:46,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:46,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188005157] [2024-10-14 20:38:46,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188005157] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:46,551 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:46,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:38:46,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788166619] [2024-10-14 20:38:46,552 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:38:46,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:38:46,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:46,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:38:46,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=95, Unknown=1, NotChecked=0, Total=132 [2024-10-14 20:38:46,553 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:38:46,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:46,726 INFO L93 Difference]: Finished difference Result 64 states and 66 transitions. [2024-10-14 20:38:46,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:38:46,727 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 50 [2024-10-14 20:38:46,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:46,727 INFO L225 Difference]: With dead ends: 64 [2024-10-14 20:38:46,727 INFO L226 Difference]: Without dead ends: 63 [2024-10-14 20:38:46,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2024-10-14 20:38:46,728 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 31 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:46,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 152 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:38:46,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-10-14 20:38:46,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-10-14 20:38:46,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 46 states have (on average 1.1956521739130435) internal successors, (55), 55 states have internal predecessors, (55), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:38:46,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 65 transitions. [2024-10-14 20:38:46,732 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 65 transitions. Word has length 50 [2024-10-14 20:38:46,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:46,732 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 65 transitions. [2024-10-14 20:38:46,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 5.142857142857143) internal successors, (36), 8 states have internal predecessors, (36), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:38:46,732 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 65 transitions. [2024-10-14 20:38:46,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 20:38:46,733 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:46,733 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:46,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-14 20:38:46,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:46,933 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr58ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:46,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:46,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1706348456, now seen corresponding path program 1 times [2024-10-14 20:38:46,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:46,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847114942] [2024-10-14 20:38:46,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:46,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:46,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:46,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680963539] [2024-10-14 20:38:46,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:46,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:46,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:46,945 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:38:46,946 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-14 20:38:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:47,000 INFO L255 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:38:47,001 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:47,207 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:38:55,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:38:55,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847114942] [2024-10-14 20:38:55,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:38:55,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680963539] [2024-10-14 20:38:55,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680963539] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:38:55,437 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:38:55,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-14 20:38:55,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321811350] [2024-10-14 20:38:55,437 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:38:55,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:38:55,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:38:55,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:38:55,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=139, Unknown=2, NotChecked=0, Total=182 [2024-10-14 20:38:55,438 INFO L87 Difference]: Start difference. First operand 63 states and 65 transitions. Second operand has 10 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:55,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:38:55,595 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2024-10-14 20:38:55,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:38:55,595 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-10-14 20:38:55,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:38:55,596 INFO L225 Difference]: With dead ends: 63 [2024-10-14 20:38:55,596 INFO L226 Difference]: Without dead ends: 61 [2024-10-14 20:38:55,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=74, Invalid=196, Unknown=2, NotChecked=0, Total=272 [2024-10-14 20:38:55,596 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 61 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:38:55,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 109 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:38:55,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-10-14 20:38:55,600 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-10-14 20:38:55,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 53 states have internal predecessors, (53), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:38:55,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2024-10-14 20:38:55,600 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 51 [2024-10-14 20:38:55,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:38:55,601 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2024-10-14 20:38:55,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.625) internal successors, (37), 9 states have internal predecessors, (37), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:38:55,601 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2024-10-14 20:38:55,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-10-14 20:38:55,602 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:38:55,602 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:38:55,618 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-14 20:38:55,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:55,802 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr59ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:38:55,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:38:55,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1357194782, now seen corresponding path program 1 times [2024-10-14 20:38:55,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:38:55,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303270369] [2024-10-14 20:38:55,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:38:55,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:38:55,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [743467505] [2024-10-14 20:38:55,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:38:55,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:38:55,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:38:55,813 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:38:55,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-14 20:38:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:38:55,870 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:38:55,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:38:56,092 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:38:56,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:39:01,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:39:01,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303270369] [2024-10-14 20:39:01,265 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:39:01,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743467505] [2024-10-14 20:39:01,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743467505] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:39:01,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:39:01,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-14 20:39:01,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981919496] [2024-10-14 20:39:01,266 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:39:01,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 20:39:01,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:39:01,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 20:39:01,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=140, Unknown=1, NotChecked=0, Total=182 [2024-10-14 20:39:01,267 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:39:01,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:39:01,400 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2024-10-14 20:39:01,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 20:39:01,401 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2024-10-14 20:39:01,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:39:01,401 INFO L225 Difference]: With dead ends: 61 [2024-10-14 20:39:01,402 INFO L226 Difference]: Without dead ends: 60 [2024-10-14 20:39:01,402 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=41, Invalid=140, Unknown=1, NotChecked=0, Total=182 [2024-10-14 20:39:01,402 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 20 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:39:01,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 164 Invalid, 190 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:39:01,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-14 20:39:01,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-14 20:39:01,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 46 states have (on average 1.1304347826086956) internal successors, (52), 52 states have internal predecessors, (52), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:39:01,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2024-10-14 20:39:01,406 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 52 [2024-10-14 20:39:01,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:39:01,406 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2024-10-14 20:39:01,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.75) internal successors, (38), 9 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:39:01,406 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2024-10-14 20:39:01,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-14 20:39:01,407 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:39:01,407 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:39:01,424 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-14 20:39:01,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:01,612 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr60ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:39:01,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:39:01,612 INFO L85 PathProgramCache]: Analyzing trace with hash -876634518, now seen corresponding path program 1 times [2024-10-14 20:39:01,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:39:01,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517383266] [2024-10-14 20:39:01,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:01,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:39:01,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:39:01,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1411130793] [2024-10-14 20:39:01,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:01,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:01,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:39:01,624 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:39:01,627 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-14 20:39:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:39:01,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-14 20:39:01,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:39:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:39:01,826 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:39:22,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:39:22,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517383266] [2024-10-14 20:39:22,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:39:22,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411130793] [2024-10-14 20:39:22,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411130793] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:39:22,849 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:39:22,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-14 20:39:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497758895] [2024-10-14 20:39:22,850 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:39:22,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 20:39:22,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:39:22,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 20:39:22,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=116, Unknown=5, NotChecked=0, Total=156 [2024-10-14 20:39:22,851 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:39:23,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:39:23,046 INFO L93 Difference]: Finished difference Result 60 states and 62 transitions. [2024-10-14 20:39:23,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:39:23,047 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 53 [2024-10-14 20:39:23,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:39:23,047 INFO L225 Difference]: With dead ends: 60 [2024-10-14 20:39:23,047 INFO L226 Difference]: Without dead ends: 59 [2024-10-14 20:39:23,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 20.5s TimeCoverageRelationStatistics Valid=35, Invalid=116, Unknown=5, NotChecked=0, Total=156 [2024-10-14 20:39:23,048 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 16 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:39:23,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 143 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:39:23,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2024-10-14 20:39:23,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2024-10-14 20:39:23,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 46 states have (on average 1.108695652173913) internal successors, (51), 51 states have internal predecessors, (51), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:39:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2024-10-14 20:39:23,052 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 53 [2024-10-14 20:39:23,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:39:23,053 INFO L471 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2024-10-14 20:39:23,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 4.875) internal successors, (39), 8 states have internal predecessors, (39), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 20:39:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2024-10-14 20:39:23,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-14 20:39:23,054 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:39:23,054 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:39:23,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-10-14 20:39:23,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-14 20:39:23,255 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr61ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:39:23,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:39:23,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1405866080, now seen corresponding path program 1 times [2024-10-14 20:39:23,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:39:23,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590783742] [2024-10-14 20:39:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:39:23,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:39:23,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699391491] [2024-10-14 20:39:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:23,265 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:23,265 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:39:23,267 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:39:23,268 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-14 20:39:23,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:39:23,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 20:39:23,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:39:23,691 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:39:23,691 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:39:41,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:39:41,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590783742] [2024-10-14 20:39:41,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:39:41,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699391491] [2024-10-14 20:39:41,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699391491] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:39:41,638 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:39:41,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-10-14 20:39:41,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484067382] [2024-10-14 20:39:41,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:39:41,639 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 20:39:41,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:39:41,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 20:39:41,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=188, Unknown=3, NotChecked=0, Total=240 [2024-10-14 20:39:41,639 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:39:41,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:39:41,889 INFO L93 Difference]: Finished difference Result 59 states and 61 transitions. [2024-10-14 20:39:41,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 20:39:41,890 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) Word has length 54 [2024-10-14 20:39:41,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:39:41,891 INFO L225 Difference]: With dead ends: 59 [2024-10-14 20:39:41,891 INFO L226 Difference]: Without dead ends: 58 [2024-10-14 20:39:41,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=49, Invalid=188, Unknown=3, NotChecked=0, Total=240 [2024-10-14 20:39:41,891 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 22 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:39:41,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 128 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 20:39:41,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2024-10-14 20:39:41,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2024-10-14 20:39:41,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.0869565217391304) internal successors, (50), 50 states have internal predecessors, (50), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:39:41,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2024-10-14 20:39:41,895 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 54 [2024-10-14 20:39:41,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:39:41,895 INFO L471 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2024-10-14 20:39:41,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 4.444444444444445) internal successors, (40), 10 states have internal predecessors, (40), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 20:39:41,895 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2024-10-14 20:39:41,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-10-14 20:39:41,896 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:39:41,896 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:39:41,910 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-14 20:39:42,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-10-14 20:39:42,096 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr62ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:39:42,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:39:42,097 INFO L85 PathProgramCache]: Analyzing trace with hash -846050575, now seen corresponding path program 1 times [2024-10-14 20:39:42,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:39:42,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093611878] [2024-10-14 20:39:42,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:42,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:39:42,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:39:42,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1084819044] [2024-10-14 20:39:42,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:42,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:42,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:39:42,108 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:39:42,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-14 20:39:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:39:42,166 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:39:42,168 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:39:42,331 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:39:42,331 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:39:42,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:39:42,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093611878] [2024-10-14 20:39:42,424 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:39:42,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084819044] [2024-10-14 20:39:42,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084819044] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:39:42,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:39:42,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:39:42,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221256589] [2024-10-14 20:39:42,424 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:39:42,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:39:42,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:39:42,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:39:42,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:39:42,425 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 20:39:42,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:39:42,529 INFO L93 Difference]: Finished difference Result 58 states and 60 transitions. [2024-10-14 20:39:42,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:39:42,529 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 60 [2024-10-14 20:39:42,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:39:42,530 INFO L225 Difference]: With dead ends: 58 [2024-10-14 20:39:42,530 INFO L226 Difference]: Without dead ends: 57 [2024-10-14 20:39:42,530 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:39:42,531 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 20 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:39:42,531 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 128 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:39:42,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-14 20:39:42,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-10-14 20:39:42,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 46 states have (on average 1.065217391304348) internal successors, (49), 49 states have internal predecessors, (49), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:39:42,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 59 transitions. [2024-10-14 20:39:42,535 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 59 transitions. Word has length 60 [2024-10-14 20:39:42,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:39:42,535 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 59 transitions. [2024-10-14 20:39:42,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 20:39:42,535 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 59 transitions. [2024-10-14 20:39:42,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-10-14 20:39:42,536 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:39:42,536 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:39:42,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-14 20:39:42,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-14 20:39:42,737 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr63ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:39:42,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:39:42,737 INFO L85 PathProgramCache]: Analyzing trace with hash -457763842, now seen corresponding path program 1 times [2024-10-14 20:39:42,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:39:42,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820832432] [2024-10-14 20:39:42,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:42,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:39:42,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:39:42,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1441372160] [2024-10-14 20:39:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:42,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:42,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:39:42,749 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:39:42,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-14 20:39:42,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:39:42,793 INFO L255 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:39:42,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:39:42,951 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:39:42,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:39:43,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:39:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820832432] [2024-10-14 20:39:43,637 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:39:43,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441372160] [2024-10-14 20:39:43,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441372160] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:39:43,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:39:43,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:39:43,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195695046] [2024-10-14 20:39:43,638 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:39:43,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:39:43,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:39:43,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:39:43,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:39:43,639 INFO L87 Difference]: Start difference. First operand 57 states and 59 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 20:39:43,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:39:43,764 INFO L93 Difference]: Finished difference Result 57 states and 59 transitions. [2024-10-14 20:39:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 20:39:43,764 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 61 [2024-10-14 20:39:43,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:39:43,765 INFO L225 Difference]: With dead ends: 57 [2024-10-14 20:39:43,765 INFO L226 Difference]: Without dead ends: 56 [2024-10-14 20:39:43,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:39:43,766 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 9 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:39:43,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 148 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:39:43,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-14 20:39:43,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-14 20:39:43,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 46 states have (on average 1.0434782608695652) internal successors, (48), 48 states have internal predecessors, (48), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:39:43,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-10-14 20:39:43,770 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 61 [2024-10-14 20:39:43,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:39:43,771 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-10-14 20:39:43,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 20:39:43,771 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-10-14 20:39:43,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-10-14 20:39:43,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:39:43,771 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:39:43,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-14 20:39:43,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:43,972 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr65ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:39:43,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:39:43,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1824381280, now seen corresponding path program 1 times [2024-10-14 20:39:43,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:39:43,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779735897] [2024-10-14 20:39:43,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:43,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:39:43,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:39:43,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1338836929] [2024-10-14 20:39:43,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:43,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:43,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:39:43,989 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:39:43,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-14 20:39:44,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:39:44,052 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-14 20:39:44,053 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:39:44,286 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-10-14 20:39:44,286 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:39:45,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:39:45,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779735897] [2024-10-14 20:39:45,212 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:39:45,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338836929] [2024-10-14 20:39:45,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338836929] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:39:45,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:39:45,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-14 20:39:45,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [676735312] [2024-10-14 20:39:45,213 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:39:45,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 20:39:45,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:39:45,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 20:39:45,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 20:39:45,214 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 20:39:45,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:39:45,320 INFO L93 Difference]: Finished difference Result 56 states and 58 transitions. [2024-10-14 20:39:45,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 20:39:45,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 63 [2024-10-14 20:39:45,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:39:45,321 INFO L225 Difference]: With dead ends: 56 [2024-10-14 20:39:45,321 INFO L226 Difference]: Without dead ends: 55 [2024-10-14 20:39:45,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 20:39:45,321 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 24 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:39:45,321 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 94 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:39:45,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-14 20:39:45,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-10-14 20:39:45,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 46 states have (on average 1.0217391304347827) internal successors, (47), 47 states have internal predecessors, (47), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2024-10-14 20:39:45,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2024-10-14 20:39:45,326 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 63 [2024-10-14 20:39:45,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:39:45,326 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2024-10-14 20:39:45,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.833333333333333) internal successors, (47), 7 states have internal predecessors, (47), 3 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2024-10-14 20:39:45,327 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2024-10-14 20:39:45,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-10-14 20:39:45,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:39:45,328 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:39:45,344 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-14 20:39:45,529 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:45,529 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr66ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 65 more)] === [2024-10-14 20:39:45,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:39:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash -721244619, now seen corresponding path program 1 times [2024-10-14 20:39:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:39:45,530 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457457793] [2024-10-14 20:39:45,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:45,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:39:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:39:45,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [552080976] [2024-10-14 20:39:45,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:39:45,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:39:45,545 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:39:45,547 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:39:45,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-14 20:39:45,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:39:45,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-14 20:39:45,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:39:45,663 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:39:45,663 INFO L311 TraceCheckSpWp]: Computing backward predicates...