./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.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 6c3a02723ba5c1d451bdbd3459a030afd92ce200d85c0df9c54e7e40eb695af7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 17:28:51,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 17:28:51,535 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 17:28:51,540 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 17:28:51,540 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 17:28:51,564 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 17:28:51,566 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 17:28:51,566 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 17:28:51,566 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 17:28:51,567 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 17:28:51,567 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 17:28:51,567 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 17:28:51,568 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 17:28:51,568 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 17:28:51,568 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 17:28:51,569 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 17:28:51,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 17:28:51,572 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 17:28:51,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 17:28:51,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 17:28:51,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 17:28:51,575 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 17:28:51,575 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 17:28:51,575 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 17:28:51,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 17:28:51,578 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 17:28:51,578 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 17:28:51,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 17:28:51,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 17:28:51,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 17:28:51,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 17:28:51,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 17:28:51,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 17:28:51,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 17:28:51,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:28:51,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 17:28:51,580 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 17:28:51,580 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 17:28:51,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 17:28:51,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 17:28:51,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 17:28:51,582 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 17:28:51,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 17:28:51,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 17:28:51,583 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c3a02723ba5c1d451bdbd3459a030afd92ce200d85c0df9c54e7e40eb695af7 [2024-11-12 17:28:51,833 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 17:28:51,854 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 17:28:51,857 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 17:28:51,858 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 17:28:51,858 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 17:28:51,860 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c [2024-11-12 17:28:53,261 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 17:28:53,464 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 17:28:53,466 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/geo3-ll2_valuebound20.c [2024-11-12 17:28:53,475 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a40d25f3/35a711d78c5b4b4eb59d49a0ef3df090/FLAG2b6e4af29 [2024-11-12 17:28:53,819 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a40d25f3/35a711d78c5b4b4eb59d49a0ef3df090 [2024-11-12 17:28:53,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 17:28:53,822 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 17:28:53,824 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 17:28:53,824 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 17:28:53,829 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 17:28:53,829 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:53" (1/1) ... [2024-11-12 17:28:53,830 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@449ebef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:53, skipping insertion in model container [2024-11-12 17:28:53,830 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 05:28:53" (1/1) ... [2024-11-12 17:28:53,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 17:28:54,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:28:54,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 17:28:54,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 17:28:54,067 INFO L204 MainTranslator]: Completed translation [2024-11-12 17:28:54,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54 WrapperNode [2024-11-12 17:28:54,068 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 17:28:54,069 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 17:28:54,069 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 17:28:54,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 17:28:54,077 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,101 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 84 [2024-11-12 17:28:54,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 17:28:54,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 17:28:54,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 17:28:54,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 17:28:54,112 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,113 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,123 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]. [2024-11-12 17:28:54,123 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,123 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,127 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,130 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,130 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,131 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 17:28:54,135 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 17:28:54,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 17:28:54,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 17:28:54,136 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (1/1) ... [2024-11-12 17:28:54,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 17:28:54,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:54,174 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) [2024-11-12 17:28:54,177 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 [2024-11-12 17:28:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 17:28:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-12 17:28:54,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-12 17:28:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 17:28:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 17:28:54,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 17:28:54,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-12 17:28:54,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-12 17:28:54,264 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 17:28:54,267 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 17:28:54,585 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-12 17:28:54,585 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 17:28:54,597 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 17:28:54,597 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-12 17:28:54,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:54 BoogieIcfgContainer [2024-11-12 17:28:54,598 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 17:28:54,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 17:28:54,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 17:28:54,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 17:28:54,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 05:28:53" (1/3) ... [2024-11-12 17:28:54,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58252baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:54, skipping insertion in model container [2024-11-12 17:28:54,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 05:28:54" (2/3) ... [2024-11-12 17:28:54,604 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58252baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 05:28:54, skipping insertion in model container [2024-11-12 17:28:54,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 05:28:54" (3/3) ... [2024-11-12 17:28:54,606 INFO L112 eAbstractionObserver]: Analyzing ICFG geo3-ll2_valuebound20.c [2024-11-12 17:28:54,621 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 17:28:54,621 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-12 17:28:54,668 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 17:28:54,673 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;@3378387, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 17:28:54,673 INFO L334 AbstractCegarLoop]: Starting to check reachability of 30 error locations. [2024-11-12 17:28:54,677 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 48 states have (on average 1.7291666666666667) internal successors, (83), 78 states have internal predecessors, (83), 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) [2024-11-12 17:28:54,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-12 17:28:54,682 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:54,683 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:28:54,683 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:28:54,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:54,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1945269129, now seen corresponding path program 1 times [2024-11-12 17:28:54,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:54,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854878014] [2024-11-12 17:28:54,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:54,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:28:54,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [49429574] [2024-11-12 17:28:54,802 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:54,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:54,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:54,804 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) [2024-11-12 17:28:54,805 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 17:28:54,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:54,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-12 17:28:54,868 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:55,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:28:55,095 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:28:55,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:55,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854878014] [2024-11-12 17:28:55,225 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:28:55,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [49429574] [2024-11-12 17:28:55,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [49429574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:28:55,225 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:28:55,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-12 17:28:55,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693160825] [2024-11-12 17:28:55,230 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:28:55,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 17:28:55,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:55,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 17:28:55,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:28:55,262 INFO L87 Difference]: Start difference. First operand has 86 states, 48 states have (on average 1.7291666666666667) internal successors, (83), 78 states have internal predecessors, (83), 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) Second operand has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:55,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:55,509 INFO L93 Difference]: Finished difference Result 166 states and 186 transitions. [2024-11-12 17:28:55,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:28:55,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 21 [2024-11-12 17:28:55,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:55,518 INFO L225 Difference]: With dead ends: 166 [2024-11-12 17:28:55,519 INFO L226 Difference]: Without dead ends: 77 [2024-11-12 17:28:55,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-12 17:28:55,525 INFO L435 NwaCegarLoop]: 35 mSDtfsCounter, 80 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:55,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 109 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:28:55,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2024-11-12 17:28:55,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2024-11-12 17:28:55,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 43 states have (on average 1.6511627906976745) internal successors, (71), 70 states have internal predecessors, (71), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:28:55,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 79 transitions. [2024-11-12 17:28:55,563 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 79 transitions. Word has length 21 [2024-11-12 17:28:55,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:55,564 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 79 transitions. [2024-11-12 17:28:55,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.4) internal successors, (12), 6 states have internal predecessors, (12), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:55,565 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 79 transitions. [2024-11-12 17:28:55,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-12 17:28:55,566 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:55,566 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:28:55,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 17:28:55,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-12 17:28:55,767 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:28:55,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:55,768 INFO L85 PathProgramCache]: Analyzing trace with hash -481060893, now seen corresponding path program 1 times [2024-11-12 17:28:55,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:55,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044637251] [2024-11-12 17:28:55,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:55,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:55,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:28:55,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1929523058] [2024-11-12 17:28:55,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:55,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:55,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:55,807 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) [2024-11-12 17:28:55,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 17:28:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:55,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 17:28:55,848 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:55,993 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:28:55,993 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:28:56,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:56,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044637251] [2024-11-12 17:28:56,063 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:28:56,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929523058] [2024-11-12 17:28:56,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929523058] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:28:56,063 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:28:56,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-12 17:28:56,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371224095] [2024-11-12 17:28:56,064 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:28:56,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:28:56,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:56,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:28:56,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-12 17:28:56,067 INFO L87 Difference]: Start difference. First operand 77 states and 79 transitions. Second operand has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:56,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:56,314 INFO L93 Difference]: Finished difference Result 77 states and 79 transitions. [2024-11-12 17:28:56,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:28:56,314 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 24 [2024-11-12 17:28:56,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:56,315 INFO L225 Difference]: With dead ends: 77 [2024-11-12 17:28:56,315 INFO L226 Difference]: Without dead ends: 73 [2024-11-12 17:28:56,316 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:28:56,317 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 73 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:56,317 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 110 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:28:56,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-12 17:28:56,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-12 17:28:56,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 43 states have (on average 1.558139534883721) internal successors, (67), 66 states have internal predecessors, (67), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:28:56,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 75 transitions. [2024-11-12 17:28:56,330 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 75 transitions. Word has length 24 [2024-11-12 17:28:56,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:56,331 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 75 transitions. [2024-11-12 17:28:56,331 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.5) internal successors, (15), 7 states have internal predecessors, (15), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:56,331 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 75 transitions. [2024-11-12 17:28:56,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-12 17:28:56,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:56,332 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:28:56,349 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-12 17:28:56,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-12 17:28:56,533 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:28:56,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:56,533 INFO L85 PathProgramCache]: Analyzing trace with hash -2027985740, now seen corresponding path program 1 times [2024-11-12 17:28:56,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:56,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204034920] [2024-11-12 17:28:56,535 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:56,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:56,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:28:56,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1553214540] [2024-11-12 17:28:56,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:56,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:56,566 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:56,570 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) [2024-11-12 17:28:56,571 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 17:28:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:56,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-12 17:28:56,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:56,745 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:28:56,745 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:28:57,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:57,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204034920] [2024-11-12 17:28:57,099 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:28:57,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553214540] [2024-11-12 17:28:57,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553214540] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:28:57,100 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:28:57,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-12 17:28:57,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977690685] [2024-11-12 17:28:57,100 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:28:57,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:28:57,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:57,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:28:57,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-12 17:28:57,102 INFO L87 Difference]: Start difference. First operand 73 states and 75 transitions. Second operand has 7 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 7 states have internal predecessors, (16), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:57,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:57,324 INFO L93 Difference]: Finished difference Result 112 states and 127 transitions. [2024-11-12 17:28:57,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:28:57,326 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), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 25 [2024-11-12 17:28:57,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:57,328 INFO L225 Difference]: With dead ends: 112 [2024-11-12 17:28:57,328 INFO L226 Difference]: Without dead ends: 108 [2024-11-12 17:28:57,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-12 17:28:57,331 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 141 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:57,333 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 115 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:28:57,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-12 17:28:57,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 94. [2024-11-12 17:28:57,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 63 states have (on average 1.5555555555555556) internal successors, (98), 86 states have internal predecessors, (98), 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) [2024-11-12 17:28:57,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 108 transitions. [2024-11-12 17:28:57,346 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 108 transitions. Word has length 25 [2024-11-12 17:28:57,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:57,346 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 108 transitions. [2024-11-12 17:28:57,346 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), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:57,346 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 108 transitions. [2024-11-12 17:28:57,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-12 17:28:57,347 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:57,347 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:28:57,360 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-12 17:28:57,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:57,548 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:28:57,549 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:57,549 INFO L85 PathProgramCache]: Analyzing trace with hash 1556951557, now seen corresponding path program 1 times [2024-11-12 17:28:57,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:57,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103396914] [2024-11-12 17:28:57,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:57,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:57,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:28:57,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1942672208] [2024-11-12 17:28:57,569 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:57,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:57,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:57,571 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) [2024-11-12 17:28:57,575 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-12 17:28:57,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:57,615 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-12 17:28:57,617 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:57,743 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:28:57,744 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:28:57,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:57,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103396914] [2024-11-12 17:28:57,926 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:28:57,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1942672208] [2024-11-12 17:28:57,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1942672208] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:28:57,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:28:57,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-12 17:28:57,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507577390] [2024-11-12 17:28:57,927 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:28:57,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:28:57,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:57,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:28:57,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-12 17:28:57,929 INFO L87 Difference]: Start difference. First operand 94 states and 108 transitions. Second operand has 7 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 7 states have internal predecessors, (17), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:58,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:58,258 INFO L93 Difference]: Finished difference Result 116 states and 123 transitions. [2024-11-12 17:28:58,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:28:58,259 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), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 26 [2024-11-12 17:28:58,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:58,260 INFO L225 Difference]: With dead ends: 116 [2024-11-12 17:28:58,260 INFO L226 Difference]: Without dead ends: 108 [2024-11-12 17:28:58,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:28:58,261 INFO L435 NwaCegarLoop]: 29 mSDtfsCounter, 170 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:58,262 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 105 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:28:58,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-12 17:28:58,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 98. [2024-11-12 17:28:58,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 67 states have (on average 1.462686567164179) internal successors, (98), 90 states have internal predecessors, (98), 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) [2024-11-12 17:28:58,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 108 transitions. [2024-11-12 17:28:58,269 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 108 transitions. Word has length 26 [2024-11-12 17:28:58,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:58,269 INFO L471 AbstractCegarLoop]: Abstraction has 98 states and 108 transitions. [2024-11-12 17:28:58,269 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), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-12 17:28:58,269 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 108 transitions. [2024-11-12 17:28:58,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-12 17:28:58,270 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:58,270 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:28:58,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-12 17:28:58,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:58,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:28:58,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:58,476 INFO L85 PathProgramCache]: Analyzing trace with hash -280598967, now seen corresponding path program 1 times [2024-11-12 17:28:58,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:58,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971286066] [2024-11-12 17:28:58,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:58,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:58,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:28:58,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [853764239] [2024-11-12 17:28:58,514 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:58,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:58,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:58,519 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) [2024-11-12 17:28:58,531 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-12 17:28:58,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:58,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:28:58,577 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:58,884 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:28:58,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:28:58,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:58,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1971286066] [2024-11-12 17:28:58,885 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:28:58,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [853764239] [2024-11-12 17:28:58,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [853764239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:28:58,886 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:28:58,886 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 17:28:58,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890572283] [2024-11-12 17:28:58,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:28:58,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 17:28:58,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:58,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 17:28:58,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:28:58,887 INFO L87 Difference]: Start difference. First operand 98 states and 108 transitions. Second operand has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 17:28:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:28:58,966 INFO L93 Difference]: Finished difference Result 108 states and 119 transitions. [2024-11-12 17:28:58,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 17:28:58,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 30 [2024-11-12 17:28:58,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:28:58,968 INFO L225 Difference]: With dead ends: 108 [2024-11-12 17:28:58,968 INFO L226 Difference]: Without dead ends: 106 [2024-11-12 17:28:58,968 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-12 17:28:58,969 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 80 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:28:58,969 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 94 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:28:58,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-12 17:28:58,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 99. [2024-11-12 17:28:58,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 68 states have (on average 1.4411764705882353) internal successors, (98), 91 states have internal predecessors, (98), 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) [2024-11-12 17:28:58,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 108 transitions. [2024-11-12 17:28:58,976 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 108 transitions. Word has length 30 [2024-11-12 17:28:58,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:28:58,977 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 108 transitions. [2024-11-12 17:28:58,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.5) internal successors, (18), 5 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 17:28:58,977 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 108 transitions. [2024-11-12 17:28:58,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-12 17:28:58,978 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:28:58,978 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:28:58,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-12 17:28:59,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:59,179 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:28:59,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:28:59,180 INFO L85 PathProgramCache]: Analyzing trace with hash -108633318, now seen corresponding path program 1 times [2024-11-12 17:28:59,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:28:59,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142019652] [2024-11-12 17:28:59,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:59,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:28:59,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:28:59,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80802974] [2024-11-12 17:28:59,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:28:59,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:28:59,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:28:59,199 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) [2024-11-12 17:28:59,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-12 17:28:59,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:28:59,241 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 17:28:59,242 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:28:59,587 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:28:59,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:28:59,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:28:59,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142019652] [2024-11-12 17:28:59,588 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:28:59,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80802974] [2024-11-12 17:28:59,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80802974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:28:59,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:28:59,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 17:28:59,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486128417] [2024-11-12 17:28:59,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:28:59,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:28:59,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:28:59,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:28:59,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:28:59,589 INFO L87 Difference]: Start difference. First operand 99 states and 108 transitions. Second operand has 4 states, 3 states have (on average 6.333333333333333) internal successors, (19), 4 states have internal predecessors, (19), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 17:29:00,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:29:00,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:00,800 INFO L93 Difference]: Finished difference Result 108 states and 117 transitions. [2024-11-12 17:29:00,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:29:00,801 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-11-12 17:29:00,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:00,802 INFO L225 Difference]: With dead ends: 108 [2024-11-12 17:29:00,802 INFO L226 Difference]: Without dead ends: 106 [2024-11-12 17:29:00,802 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:29:00,803 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 46 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:00,803 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 113 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 35 Invalid, 1 Unknown, 0 Unchecked, 1.2s Time] [2024-11-12 17:29:00,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-12 17:29:00,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 100. [2024-11-12 17:29:00,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 69 states have (on average 1.4202898550724639) internal successors, (98), 92 states have internal predecessors, (98), 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) [2024-11-12 17:29:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 108 transitions. [2024-11-12 17:29:00,811 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 108 transitions. Word has length 31 [2024-11-12 17:29:00,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:00,811 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 108 transitions. [2024-11-12 17:29:00,811 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), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 17:29:00,811 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 108 transitions. [2024-11-12 17:29:00,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-12 17:29:00,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:00,812 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:00,828 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:01,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:01,017 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:01,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:01,017 INFO L85 PathProgramCache]: Analyzing trace with hash 927334507, now seen corresponding path program 1 times [2024-11-12 17:29:01,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:01,018 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062543820] [2024-11-12 17:29:01,018 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:01,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:01,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256112959] [2024-11-12 17:29:01,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:01,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:01,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:01,042 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) [2024-11-12 17:29:01,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-12 17:29:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:01,086 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-12 17:29:01,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:01,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:01,179 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:29:01,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:01,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062543820] [2024-11-12 17:29:01,180 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:01,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256112959] [2024-11-12 17:29:01,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256112959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:29:01,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:29:01,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 17:29:01,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078975459] [2024-11-12 17:29:01,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:29:01,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:29:01,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:01,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:29:01,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:29:01,181 INFO L87 Difference]: Start difference. First operand 100 states and 108 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 17:29:01,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:01,354 INFO L93 Difference]: Finished difference Result 108 states and 111 transitions. [2024-11-12 17:29:01,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:29:01,356 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 32 [2024-11-12 17:29:01,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:01,357 INFO L225 Difference]: With dead ends: 108 [2024-11-12 17:29:01,357 INFO L226 Difference]: Without dead ends: 94 [2024-11-12 17:29:01,357 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:29:01,358 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 40 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:01,358 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 73 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:29:01,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-12 17:29:01,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 92. [2024-11-12 17:29:01,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.4262295081967213) internal successors, (87), 84 states have internal predecessors, (87), 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) [2024-11-12 17:29:01,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 97 transitions. [2024-11-12 17:29:01,371 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 97 transitions. Word has length 32 [2024-11-12 17:29:01,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:01,373 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 97 transitions. [2024-11-12 17:29:01,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-12 17:29:01,374 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 97 transitions. [2024-11-12 17:29:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-12 17:29:01,374 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:01,374 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:01,391 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-12 17:29:01,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:01,575 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:01,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:01,576 INFO L85 PathProgramCache]: Analyzing trace with hash -735236629, now seen corresponding path program 1 times [2024-11-12 17:29:01,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:01,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334964492] [2024-11-12 17:29:01,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:01,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:01,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:29:01,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:01,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:29:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:01,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:29:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:01,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:29:01,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:01,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:01,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:01,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334964492] [2024-11-12 17:29:01,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334964492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:29:01,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:29:01,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 17:29:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641931277] [2024-11-12 17:29:01,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:29:01,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 17:29:01,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 17:29:01,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:29:01,724 INFO L87 Difference]: Start difference. First operand 92 states and 97 transitions. Second operand has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 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) [2024-11-12 17:29:01,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:01,742 INFO L93 Difference]: Finished difference Result 94 states and 97 transitions. [2024-11-12 17:29:01,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 17:29:01,743 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 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 40 [2024-11-12 17:29:01,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:01,743 INFO L225 Difference]: With dead ends: 94 [2024-11-12 17:29:01,744 INFO L226 Difference]: Without dead ends: 92 [2024-11-12 17:29:01,744 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 17:29:01,744 INFO L435 NwaCegarLoop]: 72 mSDtfsCounter, 1 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:01,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 137 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:29:01,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-12 17:29:01,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-12 17:29:01,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 61 states have (on average 1.3934426229508197) internal successors, (85), 84 states have internal predecessors, (85), 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) [2024-11-12 17:29:01,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 95 transitions. [2024-11-12 17:29:01,755 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 95 transitions. Word has length 40 [2024-11-12 17:29:01,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:01,756 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 95 transitions. [2024-11-12 17:29:01,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 13.0) internal successors, (26), 3 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) [2024-11-12 17:29:01,756 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 95 transitions. [2024-11-12 17:29:01,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-12 17:29:01,757 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:01,757 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:01,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 17:29:01,757 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:01,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:01,758 INFO L85 PathProgramCache]: Analyzing trace with hash -719196143, now seen corresponding path program 1 times [2024-11-12 17:29:01,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:01,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425522185] [2024-11-12 17:29:01,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:01,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:01,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [657275740] [2024-11-12 17:29:01,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:01,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:01,783 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:01,784 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) [2024-11-12 17:29:01,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-12 17:29:01,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:01,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:29:01,831 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:01,939 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:01,940 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:29:01,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:01,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425522185] [2024-11-12 17:29:01,940 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:01,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [657275740] [2024-11-12 17:29:01,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [657275740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:29:01,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:29:01,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 17:29:01,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540931485] [2024-11-12 17:29:01,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:29:01,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:29:01,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:01,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:29:01,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:29:01,942 INFO L87 Difference]: Start difference. First operand 92 states and 95 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-12 17:29:02,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:02,226 INFO L93 Difference]: Finished difference Result 95 states and 99 transitions. [2024-11-12 17:29:02,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:29:02,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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 46 [2024-11-12 17:29:02,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:02,227 INFO L225 Difference]: With dead ends: 95 [2024-11-12 17:29:02,227 INFO L226 Difference]: Without dead ends: 94 [2024-11-12 17:29:02,228 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:29:02,228 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 38 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:02,228 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 63 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:29:02,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-12 17:29:02,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 93. [2024-11-12 17:29:02,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 85 states have internal predecessors, (86), 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) [2024-11-12 17:29:02,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 96 transitions. [2024-11-12 17:29:02,234 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 96 transitions. Word has length 46 [2024-11-12 17:29:02,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:02,235 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 96 transitions. [2024-11-12 17:29:02,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-11-12 17:29:02,235 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 96 transitions. [2024-11-12 17:29:02,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-12 17:29:02,236 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:02,236 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:02,256 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-12 17:29:02,437 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,SelfDestructingSolverStorable8 [2024-11-12 17:29:02,437 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:02,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:02,438 INFO L85 PathProgramCache]: Analyzing trace with hash -820243860, now seen corresponding path program 1 times [2024-11-12 17:29:02,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:02,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887143361] [2024-11-12 17:29:02,438 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:02,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:02,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [293561743] [2024-11-12 17:29:02,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:02,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:02,463 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) [2024-11-12 17:29:02,464 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-12 17:29:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:02,505 INFO L256 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-12 17:29:02,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:02,585 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:02,586 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:29:02,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887143361] [2024-11-12 17:29:02,586 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:02,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [293561743] [2024-11-12 17:29:02,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [293561743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:29:02,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 17:29:02,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 17:29:02,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014241893] [2024-11-12 17:29:02,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:29:02,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:29:02,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:02,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:29:02,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:29:02,587 INFO L87 Difference]: Start difference. First operand 93 states and 96 transitions. Second operand has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-11-12 17:29:02,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:02,693 INFO L93 Difference]: Finished difference Result 95 states and 98 transitions. [2024-11-12 17:29:02,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:29:02,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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 47 [2024-11-12 17:29:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:02,694 INFO L225 Difference]: With dead ends: 95 [2024-11-12 17:29:02,694 INFO L226 Difference]: Without dead ends: 94 [2024-11-12 17:29:02,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 17:29:02,695 INFO L435 NwaCegarLoop]: 32 mSDtfsCounter, 37 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:02,695 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 63 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-12 17:29:02,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-12 17:29:02,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-12 17:29:02,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 63 states have (on average 1.380952380952381) internal successors, (87), 86 states have internal predecessors, (87), 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) [2024-11-12 17:29:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 97 transitions. [2024-11-12 17:29:02,701 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 97 transitions. Word has length 47 [2024-11-12 17:29:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:02,701 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 97 transitions. [2024-11-12 17:29:02,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.0) internal successors, (33), 4 states have internal predecessors, (33), 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) [2024-11-12 17:29:02,702 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 97 transitions. [2024-11-12 17:29:02,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-12 17:29:02,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:02,703 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-12 17:29:02,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:02,903 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,SelfDestructingSolverStorable9 [2024-11-12 17:29:02,903 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:02,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:02,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1815835607, now seen corresponding path program 1 times [2024-11-12 17:29:02,904 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:02,904 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432540757] [2024-11-12 17:29:02,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:02,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:02,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:02,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930071518] [2024-11-12 17:29:02,917 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:02,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:02,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:02,918 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) [2024-11-12 17:29:02,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-12 17:29:02,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:02,972 INFO L256 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-12 17:29:02,973 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:03,280 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:29:03,280 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:04,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432540757] [2024-11-12 17:29:04,478 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:04,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930071518] [2024-11-12 17:29:04,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930071518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:04,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:04,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-12 17:29:04,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755695149] [2024-11-12 17:29:04,479 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:04,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-12 17:29:04,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:04,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-12 17:29:04,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:29:04,480 INFO L87 Difference]: Start difference. First operand 94 states and 97 transitions. Second operand has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:29:04,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:04,881 INFO L93 Difference]: Finished difference Result 141 states and 149 transitions. [2024-11-12 17:29:04,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-12 17:29:04,882 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 50 [2024-11-12 17:29:04,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:04,882 INFO L225 Difference]: With dead ends: 141 [2024-11-12 17:29:04,883 INFO L226 Difference]: Without dead ends: 129 [2024-11-12 17:29:04,883 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:29:04,883 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 141 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:04,884 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 157 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 17:29:04,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-12 17:29:04,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 119. [2024-11-12 17:29:04,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 110 states have internal predecessors, (118), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:29:04,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 130 transitions. [2024-11-12 17:29:04,889 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 130 transitions. Word has length 50 [2024-11-12 17:29:04,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:04,889 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 130 transitions. [2024-11-12 17:29:04,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.571428571428571) internal successors, (39), 8 states have internal predecessors, (39), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:29:04,890 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 130 transitions. [2024-11-12 17:29:04,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-12 17:29:04,892 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:04,892 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:04,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-12 17:29:05,092 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,SelfDestructingSolverStorable10 [2024-11-12 17:29:05,092 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:05,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:05,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1449697268, now seen corresponding path program 1 times [2024-11-12 17:29:05,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:05,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546450933] [2024-11-12 17:29:05,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:05,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:05,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:05,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [650231841] [2024-11-12 17:29:05,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:05,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:05,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:05,115 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) [2024-11-12 17:29:05,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-12 17:29:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:05,162 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-12 17:29:05,164 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:05,819 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:29:05,819 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:06,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:06,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546450933] [2024-11-12 17:29:06,113 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:06,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [650231841] [2024-11-12 17:29:06,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [650231841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:06,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:06,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 17:29:06,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755464551] [2024-11-12 17:29:06,113 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:06,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:29:06,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:06,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:29:06,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2024-11-12 17:29:06,115 INFO L87 Difference]: Start difference. First operand 119 states and 130 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:29:07,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:07,031 INFO L93 Difference]: Finished difference Result 130 states and 141 transitions. [2024-11-12 17:29:07,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:29:07,032 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 55 [2024-11-12 17:29:07,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:07,033 INFO L225 Difference]: With dead ends: 130 [2024-11-12 17:29:07,033 INFO L226 Difference]: Without dead ends: 127 [2024-11-12 17:29:07,033 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2024-11-12 17:29:07,034 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 191 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 553 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 553 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:07,034 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 168 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 553 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-12 17:29:07,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-12 17:29:07,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 121. [2024-11-12 17:29:07,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 89 states have (on average 1.3370786516853932) internal successors, (119), 112 states have internal predecessors, (119), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:29:07,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 131 transitions. [2024-11-12 17:29:07,043 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 131 transitions. Word has length 55 [2024-11-12 17:29:07,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:07,044 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 131 transitions. [2024-11-12 17:29:07,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 12 states have internal predecessors, (44), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:29:07,044 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 131 transitions. [2024-11-12 17:29:07,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-12 17:29:07,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:07,045 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:07,058 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:07,246 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,SelfDestructingSolverStorable11 [2024-11-12 17:29:07,246 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:07,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:07,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1990942415, now seen corresponding path program 1 times [2024-11-12 17:29:07,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:07,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426922248] [2024-11-12 17:29:07,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:07,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:07,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333828074] [2024-11-12 17:29:07,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:07,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:07,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:07,271 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) [2024-11-12 17:29:07,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-12 17:29:07,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:07,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 17:29:07,333 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:07,845 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-12 17:29:07,846 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:13,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426922248] [2024-11-12 17:29:13,485 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333828074] [2024-11-12 17:29:13,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333828074] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:13,485 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:13,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-12 17:29:13,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541377434] [2024-11-12 17:29:13,486 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:13,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-12 17:29:13,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:13,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-12 17:29:13,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=278, Unknown=1, NotChecked=0, Total=342 [2024-11-12 17:29:13,487 INFO L87 Difference]: Start difference. First operand 121 states and 131 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:29:13,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:13,987 INFO L93 Difference]: Finished difference Result 130 states and 138 transitions. [2024-11-12 17:29:13,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-12 17:29:13,987 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 56 [2024-11-12 17:29:13,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:13,988 INFO L225 Difference]: With dead ends: 130 [2024-11-12 17:29:13,988 INFO L226 Difference]: Without dead ends: 127 [2024-11-12 17:29:13,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=99, Invalid=362, Unknown=1, NotChecked=0, Total=462 [2024-11-12 17:29:13,989 INFO L435 NwaCegarLoop]: 28 mSDtfsCounter, 117 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 580 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:13,989 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 200 Invalid, 580 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-12 17:29:13,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-12 17:29:13,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 123. [2024-11-12 17:29:13,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 91 states have (on average 1.3186813186813187) internal successors, (120), 114 states have internal predecessors, (120), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:29:13,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 132 transitions. [2024-11-12 17:29:13,997 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 132 transitions. Word has length 56 [2024-11-12 17:29:13,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:13,998 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 132 transitions. [2024-11-12 17:29:13,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 12 states have internal predecessors, (45), 4 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-12 17:29:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 132 transitions. [2024-11-12 17:29:13,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-12 17:29:13,999 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:13,999 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:14,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:14,199 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,SelfDestructingSolverStorable12 [2024-11-12 17:29:14,200 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:14,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:14,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1589672790, now seen corresponding path program 1 times [2024-11-12 17:29:14,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:14,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617748501] [2024-11-12 17:29:14,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:14,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:14,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:14,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1036636488] [2024-11-12 17:29:14,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:14,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:14,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:14,219 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) [2024-11-12 17:29:14,226 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-12 17:29:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:14,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 17:29:14,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:14,483 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:14,483 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:14,923 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:14,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:14,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617748501] [2024-11-12 17:29:14,923 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:14,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1036636488] [2024-11-12 17:29:14,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1036636488] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:14,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:14,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-12 17:29:14,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517444677] [2024-11-12 17:29:14,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:29:14,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:29:14,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:14,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:29:14,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:29:14,925 INFO L87 Difference]: Start difference. First operand 123 states and 132 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 17:29:19,978 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:29:26,025 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:29:26,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:26,044 INFO L93 Difference]: Finished difference Result 123 states and 132 transitions. [2024-11-12 17:29:26,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:29:26,044 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 57 [2024-11-12 17:29:26,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:26,045 INFO L225 Difference]: With dead ends: 123 [2024-11-12 17:29:26,045 INFO L226 Difference]: Without dead ends: 121 [2024-11-12 17:29:26,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:29:26,046 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 31 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:26,046 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 122 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 236 Invalid, 2 Unknown, 0 Unchecked, 11.1s Time] [2024-11-12 17:29:26,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-12 17:29:26,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2024-11-12 17:29:26,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 91 states have (on average 1.2857142857142858) internal successors, (117), 112 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:29:26,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 129 transitions. [2024-11-12 17:29:26,054 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 129 transitions. Word has length 57 [2024-11-12 17:29:26,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:26,054 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 129 transitions. [2024-11-12 17:29:26,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 17:29:26,054 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 129 transitions. [2024-11-12 17:29:26,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-12 17:29:26,056 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:26,056 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:26,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-12 17:29:26,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-12 17:29:26,257 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:26,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:26,257 INFO L85 PathProgramCache]: Analyzing trace with hash 2035216305, now seen corresponding path program 1 times [2024-11-12 17:29:26,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:26,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738847695] [2024-11-12 17:29:26,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:26,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:26,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:26,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [860106505] [2024-11-12 17:29:26,275 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:26,275 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:26,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:26,277 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) [2024-11-12 17:29:26,279 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-12 17:29:26,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:26,313 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 17:29:26,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:26,575 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:26,575 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:27,243 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-12 17:29:27,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:27,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738847695] [2024-11-12 17:29:27,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:27,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [860106505] [2024-11-12 17:29:27,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [860106505] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:27,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:27,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-12 17:29:27,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523348318] [2024-11-12 17:29:27,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:29:27,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:29:27,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:27,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:29:27,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:29:27,245 INFO L87 Difference]: Start difference. First operand 121 states and 129 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 17:29:31,596 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-12 17:29:34,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:34,727 INFO L93 Difference]: Finished difference Result 121 states and 129 transitions. [2024-11-12 17:29:34,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:29:34,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 58 [2024-11-12 17:29:34,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:34,728 INFO L225 Difference]: With dead ends: 121 [2024-11-12 17:29:34,728 INFO L226 Difference]: Without dead ends: 109 [2024-11-12 17:29:34,729 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-12 17:29:34,729 INFO L435 NwaCegarLoop]: 37 mSDtfsCounter, 30 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 2 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 278 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.4s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:34,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 158 Invalid, 278 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 275 Invalid, 1 Unknown, 0 Unchecked, 7.4s Time] [2024-11-12 17:29:34,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-12 17:29:34,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-12 17:29:34,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 81 states have (on average 1.271604938271605) internal successors, (103), 100 states have internal predecessors, (103), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:29:34,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 115 transitions. [2024-11-12 17:29:34,735 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 115 transitions. Word has length 58 [2024-11-12 17:29:34,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:34,736 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 115 transitions. [2024-11-12 17:29:34,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-12 17:29:34,736 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 115 transitions. [2024-11-12 17:29:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-12 17:29:34,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:34,736 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:34,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:34,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:34,937 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:34,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:34,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1721791018, now seen corresponding path program 1 times [2024-11-12 17:29:34,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:34,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631758193] [2024-11-12 17:29:34,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:34,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:29:35,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:29:35,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:29:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:29:35,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 17:29:35,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,055 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:29:35,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631758193] [2024-11-12 17:29:35,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631758193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:35,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [726290201] [2024-11-12 17:29:35,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:35,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:35,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:35,059 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) [2024-11-12 17:29:35,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-12 17:29:35,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,104 INFO L256 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 17:29:35,107 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:35,163 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:29:35,164 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-12 17:29:35,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [726290201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 17:29:35,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:35,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2024-11-12 17:29:35,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484827945] [2024-11-12 17:29:35,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 17:29:35,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 17:29:35,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:35,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 17:29:35,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:29:35,165 INFO L87 Difference]: Start difference. First operand 109 states and 115 transitions. Second operand has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-12 17:29:35,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:35,189 INFO L93 Difference]: Finished difference Result 109 states and 115 transitions. [2024-11-12 17:29:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 17:29:35,190 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 65 [2024-11-12 17:29:35,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:35,190 INFO L225 Difference]: With dead ends: 109 [2024-11-12 17:29:35,191 INFO L226 Difference]: Without dead ends: 108 [2024-11-12 17:29:35,191 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-12 17:29:35,191 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 12 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:35,192 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 151 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:29:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-12 17:29:35,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-11-12 17:29:35,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 81 states have (on average 1.2469135802469136) internal successors, (101), 99 states have internal predecessors, (101), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-12 17:29:35,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 113 transitions. [2024-11-12 17:29:35,199 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 113 transitions. Word has length 65 [2024-11-12 17:29:35,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:35,199 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 113 transitions. [2024-11-12 17:29:35,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.333333333333334) internal successors, (46), 4 states have internal predecessors, (46), 3 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-12 17:29:35,200 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 113 transitions. [2024-11-12 17:29:35,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-12 17:29:35,200 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:35,200 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:35,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:35,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-12 17:29:35,401 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:35,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:35,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1835913925, now seen corresponding path program 1 times [2024-11-12 17:29:35,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:35,402 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652587989] [2024-11-12 17:29:35,402 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:35,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-12 17:29:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-12 17:29:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-12 17:29:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-12 17:29:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-11-12 17:29:35,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,486 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:29:35,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:35,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652587989] [2024-11-12 17:29:35,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652587989] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:35,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1615819687] [2024-11-12 17:29:35,486 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:35,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:35,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:35,488 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) [2024-11-12 17:29:35,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-12 17:29:35,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:35,533 INFO L256 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-12 17:29:35,534 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:35,602 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:29:35,602 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:35,666 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:29:35,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1615819687] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 17:29:35,666 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 17:29:35,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2024-11-12 17:29:35,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537857796] [2024-11-12 17:29:35,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:35,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:29:35,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:35,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:29:35,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:29:35,668 INFO L87 Difference]: Start difference. First operand 108 states and 113 transitions. Second operand has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-12 17:29:35,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:35,706 INFO L93 Difference]: Finished difference Result 163 states and 173 transitions. [2024-11-12 17:29:35,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 17:29:35,706 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) Word has length 66 [2024-11-12 17:29:35,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:35,707 INFO L225 Difference]: With dead ends: 163 [2024-11-12 17:29:35,707 INFO L226 Difference]: Without dead ends: 162 [2024-11-12 17:29:35,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-12 17:29:35,708 INFO L435 NwaCegarLoop]: 64 mSDtfsCounter, 24 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 263 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:35,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 263 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-12 17:29:35,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-12 17:29:35,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 144. [2024-11-12 17:29:35,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 115 states have (on average 1.3391304347826087) internal successors, (154), 133 states have internal predecessors, (154), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:29:35,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2024-11-12 17:29:35,716 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 66 [2024-11-12 17:29:35,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:35,719 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2024-11-12 17:29:35,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 16.833333333333332) internal successors, (101), 7 states have internal predecessors, (101), 6 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 6 states have call predecessors, (8), 6 states have call successors, (8) [2024-11-12 17:29:35,719 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2024-11-12 17:29:35,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-12 17:29:35,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:35,720 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:35,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:35,920 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,SelfDestructingSolverStorable16 [2024-11-12 17:29:35,921 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:35,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:35,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1900264876, now seen corresponding path program 2 times [2024-11-12 17:29:35,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:35,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400101008] [2024-11-12 17:29:35,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:35,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:35,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:35,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1690797666] [2024-11-12 17:29:35,934 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:29:35,934 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:35,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:35,936 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) [2024-11-12 17:29:35,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-12 17:29:36,094 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:29:36,094 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:29:36,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-11-12 17:29:36,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:37,047 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-12 17:29:37,047 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:38,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:38,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400101008] [2024-11-12 17:29:38,210 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:38,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690797666] [2024-11-12 17:29:38,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690797666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:38,210 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:38,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-12 17:29:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1044747753] [2024-11-12 17:29:38,210 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:38,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 17:29:38,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:38,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 17:29:38,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=204, Unknown=0, NotChecked=0, Total=272 [2024-11-12 17:29:38,211 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 17:29:41,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:29:41,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:41,419 INFO L93 Difference]: Finished difference Result 162 states and 186 transitions. [2024-11-12 17:29:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 17:29:41,419 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 75 [2024-11-12 17:29:41,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:41,420 INFO L225 Difference]: With dead ends: 162 [2024-11-12 17:29:41,420 INFO L226 Difference]: Without dead ends: 158 [2024-11-12 17:29:41,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-12 17:29:41,421 INFO L435 NwaCegarLoop]: 27 mSDtfsCounter, 167 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 521 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 521 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:41,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 185 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 521 Invalid, 1 Unknown, 0 Unchecked, 3.1s Time] [2024-11-12 17:29:41,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-11-12 17:29:41,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 146. [2024-11-12 17:29:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 117 states have (on average 1.3076923076923077) internal successors, (153), 135 states have internal predecessors, (153), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:29:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 169 transitions. [2024-11-12 17:29:41,430 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 169 transitions. Word has length 75 [2024-11-12 17:29:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:41,430 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 169 transitions. [2024-11-12 17:29:41,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 14 states have internal predecessors, (56), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 17:29:41,431 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 169 transitions. [2024-11-12 17:29:41,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-12 17:29:41,431 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:41,431 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:41,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-12 17:29:41,632 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-12 17:29:41,632 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:41,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:41,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1221331045, now seen corresponding path program 1 times [2024-11-12 17:29:41,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:41,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863218300] [2024-11-12 17:29:41,633 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:41,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:41,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:41,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1718110691] [2024-11-12 17:29:41,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:41,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:41,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:41,653 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) [2024-11-12 17:29:41,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-12 17:29:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:41,699 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-12 17:29:41,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:41,865 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 10 proven. 6 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-12 17:29:41,865 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:43,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:43,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863218300] [2024-11-12 17:29:43,676 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:43,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1718110691] [2024-11-12 17:29:43,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1718110691] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:43,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:43,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-12 17:29:43,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368469658] [2024-11-12 17:29:43,676 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:43,677 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 17:29:43,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:43,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 17:29:43,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-11-12 17:29:43,678 INFO L87 Difference]: Start difference. First operand 146 states and 169 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 17:29:43,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:43,983 INFO L93 Difference]: Finished difference Result 146 states and 169 transitions. [2024-11-12 17:29:43,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 17:29:43,983 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 76 [2024-11-12 17:29:43,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:43,984 INFO L225 Difference]: With dead ends: 146 [2024-11-12 17:29:43,985 INFO L226 Difference]: Without dead ends: 144 [2024-11-12 17:29:43,985 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-11-12 17:29:43,986 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 54 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:43,986 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 130 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-12 17:29:43,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-12 17:29:43,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-12 17:29:43,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 117 states have (on average 1.2735042735042734) internal successors, (149), 133 states have internal predecessors, (149), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:29:43,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 165 transitions. [2024-11-12 17:29:43,995 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 165 transitions. Word has length 76 [2024-11-12 17:29:43,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:43,997 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 165 transitions. [2024-11-12 17:29:43,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-12 17:29:43,997 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 165 transitions. [2024-11-12 17:29:43,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-12 17:29:43,997 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:43,998 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:44,015 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-12 17:29:44,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:44,198 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:44,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:44,199 INFO L85 PathProgramCache]: Analyzing trace with hash -793443210, now seen corresponding path program 1 times [2024-11-12 17:29:44,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:44,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378708303] [2024-11-12 17:29:44,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:44,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:44,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:44,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [220861075] [2024-11-12 17:29:44,212 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:44,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:44,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:44,228 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) [2024-11-12 17:29:44,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-12 17:29:44,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 17:29:44,278 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-12 17:29:44,280 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:45,421 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-12 17:29:45,421 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:45,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:45,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378708303] [2024-11-12 17:29:45,930 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:45,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [220861075] [2024-11-12 17:29:45,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [220861075] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:45,930 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:45,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-12 17:29:45,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269270992] [2024-11-12 17:29:45,930 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:45,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 17:29:45,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:45,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 17:29:45,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2024-11-12 17:29:45,932 INFO L87 Difference]: Start difference. First operand 144 states and 165 transitions. Second operand has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 17:29:46,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:46,842 INFO L93 Difference]: Finished difference Result 144 states and 165 transitions. [2024-11-12 17:29:46,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-12 17:29:46,843 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 77 [2024-11-12 17:29:46,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:46,844 INFO L225 Difference]: With dead ends: 144 [2024-11-12 17:29:46,844 INFO L226 Difference]: Without dead ends: 136 [2024-11-12 17:29:46,844 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=118, Invalid=344, Unknown=0, NotChecked=0, Total=462 [2024-11-12 17:29:46,845 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 137 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 328 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:46,845 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 177 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 328 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-12 17:29:46,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2024-11-12 17:29:46,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2024-11-12 17:29:46,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 115 states have (on average 1.1565217391304348) internal successors, (133), 123 states have internal predecessors, (133), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:29:46,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 149 transitions. [2024-11-12 17:29:46,855 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 149 transitions. Word has length 77 [2024-11-12 17:29:46,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:46,856 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 149 transitions. [2024-11-12 17:29:46,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.923076923076923) internal successors, (64), 14 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 17:29:46,856 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 149 transitions. [2024-11-12 17:29:46,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-12 17:29:46,857 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:46,857 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:46,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-12 17:29:47,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:47,061 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:47,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:47,061 INFO L85 PathProgramCache]: Analyzing trace with hash 2033388713, now seen corresponding path program 2 times [2024-11-12 17:29:47,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:47,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272417763] [2024-11-12 17:29:47,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:47,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:47,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1976611296] [2024-11-12 17:29:47,075 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:29:47,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:47,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:47,080 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) [2024-11-12 17:29:47,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-12 17:29:47,131 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:29:47,131 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:29:47,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-12 17:29:47,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:47,985 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-12 17:29:47,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:48,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272417763] [2024-11-12 17:29:48,128 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:48,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976611296] [2024-11-12 17:29:48,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976611296] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:48,128 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:48,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-12 17:29:48,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142898353] [2024-11-12 17:29:48,128 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:48,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-12 17:29:48,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:48,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-12 17:29:48,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-11-12 17:29:48,131 INFO L87 Difference]: Start difference. First operand 134 states and 149 transitions. Second operand has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 17:29:48,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-12 17:29:48,420 INFO L93 Difference]: Finished difference Result 134 states and 149 transitions. [2024-11-12 17:29:48,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-12 17:29:48,420 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) Word has length 80 [2024-11-12 17:29:48,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-12 17:29:48,421 INFO L225 Difference]: With dead ends: 134 [2024-11-12 17:29:48,421 INFO L226 Difference]: Without dead ends: 131 [2024-11-12 17:29:48,421 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-12 17:29:48,422 INFO L435 NwaCegarLoop]: 26 mSDtfsCounter, 85 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-12 17:29:48,422 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 123 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-12 17:29:48,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-12 17:29:48,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-11-12 17:29:48,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 115 states have (on average 1.1043478260869566) internal successors, (127), 120 states have internal predecessors, (127), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-12 17:29:48,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 143 transitions. [2024-11-12 17:29:48,434 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 143 transitions. Word has length 80 [2024-11-12 17:29:48,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-12 17:29:48,434 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 143 transitions. [2024-11-12 17:29:48,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.111111111111111) internal successors, (64), 10 states have internal predecessors, (64), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 17:29:48,434 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 143 transitions. [2024-11-12 17:29:48,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-12 17:29:48,435 INFO L210 NwaCegarLoop]: Found error trace [2024-11-12 17:29:48,435 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 17:29:48,452 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-12 17:29:48,639 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,SelfDestructingSolverStorable20 [2024-11-12 17:29:48,640 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 27 more)] === [2024-11-12 17:29:48,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 17:29:48,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1389459270, now seen corresponding path program 2 times [2024-11-12 17:29:48,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 17:29:48,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670666604] [2024-11-12 17:29:48,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 17:29:48,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 17:29:48,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-12 17:29:48,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1118193599] [2024-11-12 17:29:48,659 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-12 17:29:48,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 17:29:48,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 17:29:48,662 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) [2024-11-12 17:29:48,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-12 17:29:48,715 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-12 17:29:48,716 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-12 17:29:48,717 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-12 17:29:48,718 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 17:29:56,493 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 3 proven. 45 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-12 17:29:56,493 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 17:29:57,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 17:29:57,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670666604] [2024-11-12 17:29:57,295 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-12 17:29:57,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118193599] [2024-11-12 17:29:57,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118193599] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 17:29:57,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-12 17:29:57,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-12 17:29:57,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119661395] [2024-11-12 17:29:57,296 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-12 17:29:57,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-12 17:29:57,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 17:29:57,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-12 17:29:57,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=218, Unknown=3, NotChecked=0, Total=272 [2024-11-12 17:29:57,297 INFO L87 Difference]: Start difference. First operand 131 states and 143 transitions. Second operand has 14 states, 13 states have (on average 5.230769230769231) internal successors, (68), 14 states have internal predecessors, (68), 5 states have call successors, (5), 1 states have call predecessors, (5), 3 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2024-11-12 17:30:01,691 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.76s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:30:05,944 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:30:10,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:30:18,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:30:22,160 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:30:26,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-12 17:30:30,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0]