./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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/prodbin-ll_valuebound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8bd25fcd8e8d81d9ce03f11651b22e7d6f0ec0da3b511f7ebe00128a9109f319 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 19:27:14,834 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 19:27:14,918 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 19:27:14,925 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 19:27:14,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 19:27:14,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 19:27:14,964 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 19:27:14,964 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 19:27:14,965 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 19:27:14,966 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 19:27:14,967 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 19:27:14,968 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 19:27:14,968 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 19:27:14,969 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 19:27:14,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 19:27:14,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 19:27:14,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 19:27:14,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 19:27:14,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 19:27:14,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 19:27:14,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 19:27:14,972 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 19:27:14,973 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 19:27:14,973 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 19:27:14,973 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 19:27:14,973 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 19:27:14,974 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 19:27:14,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 19:27:14,974 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 19:27:14,975 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 19:27:14,975 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 19:27:14,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 19:27:14,975 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 19:27:14,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 19:27:14,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:27:14,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 19:27:14,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 19:27:14,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 19:27:14,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 19:27:14,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 19:27:14,978 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 19:27:14,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 19:27:14,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 19:27:14,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 19:27:14,979 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8bd25fcd8e8d81d9ce03f11651b22e7d6f0ec0da3b511f7ebe00128a9109f319 [2024-11-10 19:27:15,237 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 19:27:15,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 19:27:15,268 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 19:27:15,270 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 19:27:15,271 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 19:27:15,272 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound100.c [2024-11-10 19:27:16,801 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 19:27:17,007 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 19:27:17,008 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prodbin-ll_valuebound100.c [2024-11-10 19:27:17,016 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d94fb52/0ff3a565d5de49609dc5519c3bd28bdb/FLAGed5cc3199 [2024-11-10 19:27:17,374 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d94fb52/0ff3a565d5de49609dc5519c3bd28bdb [2024-11-10 19:27:17,376 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 19:27:17,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 19:27:17,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 19:27:17,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 19:27:17,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 19:27:17,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,384 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70b088b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17, skipping insertion in model container [2024-11-10 19:27:17,384 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,403 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 19:27:17,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:27:17,613 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 19:27:17,633 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 19:27:17,653 INFO L204 MainTranslator]: Completed translation [2024-11-10 19:27:17,653 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17 WrapperNode [2024-11-10 19:27:17,654 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 19:27:17,655 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 19:27:17,655 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 19:27:17,655 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 19:27:17,662 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,687 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2024-11-10 19:27:17,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 19:27:17,688 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 19:27:17,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 19:27:17,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 19:27:17,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,699 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,704 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,730 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]. [2024-11-10 19:27:17,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,730 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,735 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,735 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,740 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,741 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,742 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 19:27:17,747 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 19:27:17,747 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 19:27:17,747 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 19:27:17,748 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (1/1) ... [2024-11-10 19:27:17,759 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 19:27:17,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:17,793 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) [2024-11-10 19:27:17,817 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 [2024-11-10 19:27:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 19:27:17,881 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 19:27:17,881 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 19:27:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 19:27:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 19:27:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 19:27:17,882 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 19:27:17,882 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 19:27:17,941 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 19:27:17,943 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 19:27:18,167 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-11-10 19:27:18,168 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 19:27:18,185 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 19:27:18,185 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 19:27:18,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:27:18 BoogieIcfgContainer [2024-11-10 19:27:18,185 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 19:27:18,187 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 19:27:18,187 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 19:27:18,190 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 19:27:18,190 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:27:17" (1/3) ... [2024-11-10 19:27:18,190 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d83c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:27:18, skipping insertion in model container [2024-11-10 19:27:18,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:27:17" (2/3) ... [2024-11-10 19:27:18,191 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@365d83c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:27:18, skipping insertion in model container [2024-11-10 19:27:18,191 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 07:27:18" (3/3) ... [2024-11-10 19:27:18,192 INFO L112 eAbstractionObserver]: Analyzing ICFG prodbin-ll_valuebound100.c [2024-11-10 19:27:18,206 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 19:27:18,206 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-10 19:27:18,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 19:27:18,264 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;@3afc5e85, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 19:27:18,265 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-10 19:27:18,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 63 states, 39 states have (on average 1.564102564102564) internal successors, (61), 55 states have internal predecessors, (61), 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) [2024-11-10 19:27:18,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-10 19:27:18,277 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:18,278 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:18,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:18,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:18,284 INFO L85 PathProgramCache]: Analyzing trace with hash 2058423889, now seen corresponding path program 1 times [2024-11-10 19:27:18,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:18,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273407648] [2024-11-10 19:27:18,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:18,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:18,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:18,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:18,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:18,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:18,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:18,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:18,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:18,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:18,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273407648] [2024-11-10 19:27:18,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273407648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:18,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:18,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 19:27:18,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259530417] [2024-11-10 19:27:18,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:18,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 19:27:18,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:18,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 19:27:18,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:27:18,520 INFO L87 Difference]: Start difference. First operand has 63 states, 39 states have (on average 1.564102564102564) internal successors, (61), 55 states have internal predecessors, (61), 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 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:18,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:18,545 INFO L93 Difference]: Finished difference Result 122 states and 142 transitions. [2024-11-10 19:27:18,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 19:27:18,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2024-11-10 19:27:18,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:18,554 INFO L225 Difference]: With dead ends: 122 [2024-11-10 19:27:18,555 INFO L226 Difference]: Without dead ends: 56 [2024-11-10 19:27:18,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 19:27:18,561 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:18,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:18,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-11-10 19:27:18,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-11-10 19:27:18,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 34 states have (on average 1.5) internal successors, (51), 49 states have internal predecessors, (51), 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) [2024-11-10 19:27:18,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 59 transitions. [2024-11-10 19:27:18,606 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 59 transitions. Word has length 21 [2024-11-10 19:27:18,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:18,607 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 59 transitions. [2024-11-10 19:27:18,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:18,608 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 59 transitions. [2024-11-10 19:27:18,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-10 19:27:18,610 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:18,610 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:18,610 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 19:27:18,611 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:18,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:18,614 INFO L85 PathProgramCache]: Analyzing trace with hash -593854542, now seen corresponding path program 1 times [2024-11-10 19:27:18,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:18,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932330925] [2024-11-10 19:27:18,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:18,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:18,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:18,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805838441] [2024-11-10 19:27:18,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:18,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:18,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:18,666 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) [2024-11-10 19:27:18,667 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 19:27:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:18,746 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-10 19:27:18,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:18,941 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:18,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:19,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:19,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932330925] [2024-11-10 19:27:19,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:19,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805838441] [2024-11-10 19:27:19,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805838441] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:19,116 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:19,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-10 19:27:19,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542590355] [2024-11-10 19:27:19,117 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:19,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 19:27:19,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:19,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 19:27:19,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-10 19:27:19,119 INFO L87 Difference]: Start difference. First operand 56 states and 59 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:19,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:19,326 INFO L93 Difference]: Finished difference Result 87 states and 102 transitions. [2024-11-10 19:27:19,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:27:19,327 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-10 19:27:19,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:19,328 INFO L225 Difference]: With dead ends: 87 [2024-11-10 19:27:19,329 INFO L226 Difference]: Without dead ends: 78 [2024-11-10 19:27:19,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-11-10 19:27:19,330 INFO L432 NwaCegarLoop]: 20 mSDtfsCounter, 88 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:19,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 85 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:27:19,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-10 19:27:19,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 73. [2024-11-10 19:27:19,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 65 states have internal predecessors, (75), 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) [2024-11-10 19:27:19,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 85 transitions. [2024-11-10 19:27:19,348 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 85 transitions. Word has length 22 [2024-11-10 19:27:19,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:19,350 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 85 transitions. [2024-11-10 19:27:19,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-10 19:27:19,351 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 85 transitions. [2024-11-10 19:27:19,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-10 19:27:19,352 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:19,352 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:19,365 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 19:27:19,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:19,555 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:19,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:19,556 INFO L85 PathProgramCache]: Analyzing trace with hash -1229621607, now seen corresponding path program 1 times [2024-11-10 19:27:19,556 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:19,556 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584577603] [2024-11-10 19:27:19,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:19,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:19,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:19,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1266268217] [2024-11-10 19:27:19,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:19,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:19,576 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:19,578 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) [2024-11-10 19:27:19,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 19:27:19,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:19,650 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:27:19,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:19,839 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:19,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 19:27:19,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:19,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584577603] [2024-11-10 19:27:19,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:19,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266268217] [2024-11-10 19:27:19,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266268217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:19,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:19,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 19:27:19,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028087489] [2024-11-10 19:27:19,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:19,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:27:19,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:19,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:27:19,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:27:19,843 INFO L87 Difference]: Start difference. First operand 73 states and 85 transitions. Second operand has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:27:20,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:20,025 INFO L93 Difference]: Finished difference Result 78 states and 88 transitions. [2024-11-10 19:27:20,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:27:20,026 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 23 [2024-11-10 19:27:20,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:20,028 INFO L225 Difference]: With dead ends: 78 [2024-11-10 19:27:20,029 INFO L226 Difference]: Without dead ends: 71 [2024-11-10 19:27:20,029 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 19:27:20,030 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 77 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:20,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 106 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:20,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-10 19:27:20,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-10 19:27:20,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 51 states have (on average 1.3529411764705883) internal successors, (69), 62 states have internal predecessors, (69), 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) [2024-11-10 19:27:20,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 79 transitions. [2024-11-10 19:27:20,047 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 79 transitions. Word has length 23 [2024-11-10 19:27:20,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:20,047 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 79 transitions. [2024-11-10 19:27:20,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-10 19:27:20,048 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 79 transitions. [2024-11-10 19:27:20,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-10 19:27:20,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:20,049 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:20,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:20,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 19:27:20,250 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:20,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:20,251 INFO L85 PathProgramCache]: Analyzing trace with hash 536435856, now seen corresponding path program 1 times [2024-11-10 19:27:20,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:20,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326038829] [2024-11-10 19:27:20,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:20,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:20,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:20,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:20,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,383 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:20,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:20,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326038829] [2024-11-10 19:27:20,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326038829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:20,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:20,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:20,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409270242] [2024-11-10 19:27:20,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:20,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:20,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:20,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:20,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:20,387 INFO L87 Difference]: Start difference. First operand 70 states and 79 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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) [2024-11-10 19:27:20,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:20,545 INFO L93 Difference]: Finished difference Result 97 states and 111 transitions. [2024-11-10 19:27:20,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:20,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 24 [2024-11-10 19:27:20,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:20,547 INFO L225 Difference]: With dead ends: 97 [2024-11-10 19:27:20,547 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 19:27:20,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:20,549 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 32 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:20,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 82 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:20,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 19:27:20,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2024-11-10 19:27:20,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.373134328358209) internal successors, (92), 78 states have internal predecessors, (92), 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) [2024-11-10 19:27:20,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2024-11-10 19:27:20,559 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 24 [2024-11-10 19:27:20,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:20,560 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2024-11-10 19:27:20,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (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) [2024-11-10 19:27:20,560 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2024-11-10 19:27:20,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-10 19:27:20,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:20,561 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:20,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 19:27:20,562 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:20,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:20,562 INFO L85 PathProgramCache]: Analyzing trace with hash -550357641, now seen corresponding path program 1 times [2024-11-10 19:27:20,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:20,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114180890] [2024-11-10 19:27:20,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:20,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:20,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:20,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:20,764 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:20,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:20,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114180890] [2024-11-10 19:27:20,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114180890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:20,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:20,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:20,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212686869] [2024-11-10 19:27:20,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:20,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:20,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:20,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:20,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:20,772 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-10 19:27:21,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:21,150 INFO L93 Difference]: Finished difference Result 97 states and 109 transitions. [2024-11-10 19:27:21,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:21,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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 25 [2024-11-10 19:27:21,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:21,152 INFO L225 Difference]: With dead ends: 97 [2024-11-10 19:27:21,152 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 19:27:21,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:21,154 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 20 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:21,155 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 103 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-10 19:27:21,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 19:27:21,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 87. [2024-11-10 19:27:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 78 states have internal predecessors, (90), 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) [2024-11-10 19:27:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 102 transitions. [2024-11-10 19:27:21,168 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 102 transitions. Word has length 25 [2024-11-10 19:27:21,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:21,169 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 102 transitions. [2024-11-10 19:27:21,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 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) [2024-11-10 19:27:21,169 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 102 transitions. [2024-11-10 19:27:21,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-10 19:27:21,170 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:21,170 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:21,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 19:27:21,170 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:21,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:21,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1696187594, now seen corresponding path program 1 times [2024-11-10 19:27:21,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:21,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512491332] [2024-11-10 19:27:21,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:21,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:21,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:21,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:21,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:21,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512491332] [2024-11-10 19:27:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512491332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:21,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:21,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:21,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999292841] [2024-11-10 19:27:21,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:21,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:21,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:21,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:21,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:21,324 INFO L87 Difference]: Start difference. First operand 87 states and 102 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-10 19:27:21,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:21,389 INFO L93 Difference]: Finished difference Result 88 states and 102 transitions. [2024-11-10 19:27:21,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:21,390 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 35 [2024-11-10 19:27:21,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:21,391 INFO L225 Difference]: With dead ends: 88 [2024-11-10 19:27:21,391 INFO L226 Difference]: Without dead ends: 87 [2024-11-10 19:27:21,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:21,396 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 59 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:21,397 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 81 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:21,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-10 19:27:21,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-10 19:27:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.328358208955224) internal successors, (89), 78 states have internal predecessors, (89), 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) [2024-11-10 19:27:21,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 101 transitions. [2024-11-10 19:27:21,413 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 101 transitions. Word has length 35 [2024-11-10 19:27:21,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:21,413 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 101 transitions. [2024-11-10 19:27:21,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 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) [2024-11-10 19:27:21,414 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 101 transitions. [2024-11-10 19:27:21,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-10 19:27:21,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:21,415 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:21,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 19:27:21,415 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:21,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:21,416 INFO L85 PathProgramCache]: Analyzing trace with hash 1042207856, now seen corresponding path program 1 times [2024-11-10 19:27:21,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:21,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584005177] [2024-11-10 19:27:21,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:21,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:21,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:21,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:21,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:21,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:21,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,550 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:21,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:21,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584005177] [2024-11-10 19:27:21,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584005177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:21,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:21,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:21,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437859485] [2024-11-10 19:27:21,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:21,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:21,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:21,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:21,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:21,553 INFO L87 Difference]: Start difference. First operand 87 states and 101 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:21,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:21,645 INFO L93 Difference]: Finished difference Result 88 states and 101 transitions. [2024-11-10 19:27:21,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:21,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2024-11-10 19:27:21,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:21,646 INFO L225 Difference]: With dead ends: 88 [2024-11-10 19:27:21,647 INFO L226 Difference]: Without dead ends: 87 [2024-11-10 19:27:21,647 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:21,647 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 57 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:21,648 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 82 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:21,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-10 19:27:21,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-10 19:27:21,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 78 states have internal predecessors, (88), 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) [2024-11-10 19:27:21,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 100 transitions. [2024-11-10 19:27:21,658 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 100 transitions. Word has length 36 [2024-11-10 19:27:21,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:21,658 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 100 transitions. [2024-11-10 19:27:21,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:21,659 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 100 transitions. [2024-11-10 19:27:21,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-10 19:27:21,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:21,660 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:21,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 19:27:21,660 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:21,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:21,661 INFO L85 PathProgramCache]: Analyzing trace with hash 114734396, now seen corresponding path program 1 times [2024-11-10 19:27:21,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:21,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959683438] [2024-11-10 19:27:21,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:21,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:21,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,792 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:21,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:21,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959683438] [2024-11-10 19:27:21,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959683438] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:21,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:21,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:27:21,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368714896] [2024-11-10 19:27:21,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:21,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:27:21,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:21,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:27:21,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:21,796 INFO L87 Difference]: Start difference. First operand 87 states and 100 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:21,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:21,844 INFO L93 Difference]: Finished difference Result 87 states and 100 transitions. [2024-11-10 19:27:21,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:21,845 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-11-10 19:27:21,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:21,846 INFO L225 Difference]: With dead ends: 87 [2024-11-10 19:27:21,846 INFO L226 Difference]: Without dead ends: 85 [2024-11-10 19:27:21,846 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-10 19:27:21,848 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 57 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:21,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 56 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:21,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-10 19:27:21,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 84. [2024-11-10 19:27:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 66 states have (on average 1.2727272727272727) internal successors, (84), 75 states have internal predecessors, (84), 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) [2024-11-10 19:27:21,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 96 transitions. [2024-11-10 19:27:21,856 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 96 transitions. Word has length 39 [2024-11-10 19:27:21,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:21,856 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 96 transitions. [2024-11-10 19:27:21,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:21,857 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 96 transitions. [2024-11-10 19:27:21,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-10 19:27:21,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:21,858 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:21,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 19:27:21,858 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:21,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:21,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1723697893, now seen corresponding path program 1 times [2024-11-10 19:27:21,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:21,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905831327] [2024-11-10 19:27:21,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:21,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:21,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:21,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:21,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:21,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:21,941 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:21,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:21,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905831327] [2024-11-10 19:27:21,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905831327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:21,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:21,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:21,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962755097] [2024-11-10 19:27:21,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:21,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:21,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:21,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:21,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:21,945 INFO L87 Difference]: Start difference. First operand 84 states and 96 transitions. Second operand has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:22,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:22,011 INFO L93 Difference]: Finished difference Result 90 states and 103 transitions. [2024-11-10 19:27:22,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:22,012 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 41 [2024-11-10 19:27:22,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:22,012 INFO L225 Difference]: With dead ends: 90 [2024-11-10 19:27:22,012 INFO L226 Difference]: Without dead ends: 89 [2024-11-10 19:27:22,013 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:22,013 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 58 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:22,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 77 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:22,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-10 19:27:22,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 87. [2024-11-10 19:27:22,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 69 states have (on average 1.2608695652173914) internal successors, (87), 78 states have internal predecessors, (87), 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) [2024-11-10 19:27:22,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2024-11-10 19:27:22,033 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 41 [2024-11-10 19:27:22,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:22,033 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2024-11-10 19:27:22,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.0) internal successors, (27), 4 states have internal predecessors, (27), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-10 19:27:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2024-11-10 19:27:22,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-10 19:27:22,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:22,036 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:22,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 19:27:22,036 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:22,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:22,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1895027115, now seen corresponding path program 1 times [2024-11-10 19:27:22,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:22,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028148221] [2024-11-10 19:27:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:22,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:22,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:22,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:22,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:22,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:22,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:22,108 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:22,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:22,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028148221] [2024-11-10 19:27:22,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028148221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:22,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:22,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 19:27:22,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413056567] [2024-11-10 19:27:22,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:22,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 19:27:22,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:22,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 19:27:22,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 19:27:22,111 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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) [2024-11-10 19:27:22,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:22,164 INFO L93 Difference]: Finished difference Result 90 states and 102 transitions. [2024-11-10 19:27:22,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 19:27:22,167 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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 42 [2024-11-10 19:27:22,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:22,168 INFO L225 Difference]: With dead ends: 90 [2024-11-10 19:27:22,168 INFO L226 Difference]: Without dead ends: 89 [2024-11-10 19:27:22,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:22,168 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 56 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:22,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 78 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:22,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-10 19:27:22,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 88. [2024-11-10 19:27:22,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 70 states have (on average 1.2571428571428571) internal successors, (88), 79 states have internal predecessors, (88), 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) [2024-11-10 19:27:22,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 100 transitions. [2024-11-10 19:27:22,179 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 100 transitions. Word has length 42 [2024-11-10 19:27:22,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:22,179 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 100 transitions. [2024-11-10 19:27:22,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 2 states have call successors, (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) [2024-11-10 19:27:22,179 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 100 transitions. [2024-11-10 19:27:22,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-10 19:27:22,182 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:22,183 INFO L215 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] [2024-11-10 19:27:22,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 19:27:22,183 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:22,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:22,183 INFO L85 PathProgramCache]: Analyzing trace with hash -1514669856, now seen corresponding path program 1 times [2024-11-10 19:27:22,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:22,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330995583] [2024-11-10 19:27:22,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:22,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:22,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1073261612] [2024-11-10 19:27:22,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:22,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:22,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:22,201 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) [2024-11-10 19:27:22,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 19:27:22,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:22,246 INFO L255 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 19:27:22,248 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:22,417 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-10 19:27:22,417 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:23,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330995583] [2024-11-10 19:27:23,961 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:23,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1073261612] [2024-11-10 19:27:23,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1073261612] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:23,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:23,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-10 19:27:23,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494102583] [2024-11-10 19:27:23,962 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:23,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:27:23,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:23,963 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:27:23,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=98, Unknown=1, NotChecked=0, Total=132 [2024-11-10 19:27:23,963 INFO L87 Difference]: Start difference. First operand 88 states and 100 transitions. Second operand has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:24,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:24,174 INFO L93 Difference]: Finished difference Result 98 states and 109 transitions. [2024-11-10 19:27:24,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-10 19:27:24,175 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 43 [2024-11-10 19:27:24,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:24,176 INFO L225 Difference]: With dead ends: 98 [2024-11-10 19:27:24,176 INFO L226 Difference]: Without dead ends: 94 [2024-11-10 19:27:24,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=53, Invalid=128, Unknown=1, NotChecked=0, Total=182 [2024-11-10 19:27:24,176 INFO L432 NwaCegarLoop]: 21 mSDtfsCounter, 128 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:24,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 91 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-10 19:27:24,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-10 19:27:24,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 90. [2024-11-10 19:27:24,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 72 states have (on average 1.2361111111111112) internal successors, (89), 81 states have internal predecessors, (89), 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) [2024-11-10 19:27:24,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 101 transitions. [2024-11-10 19:27:24,187 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 101 transitions. Word has length 43 [2024-11-10 19:27:24,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:24,189 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 101 transitions. [2024-11-10 19:27:24,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.285714285714286) internal successors, (30), 7 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:24,189 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 101 transitions. [2024-11-10 19:27:24,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-10 19:27:24,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:24,190 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:24,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:24,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:24,391 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:24,391 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:24,391 INFO L85 PathProgramCache]: Analyzing trace with hash 54923465, now seen corresponding path program 1 times [2024-11-10 19:27:24,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:24,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180135837] [2024-11-10 19:27:24,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:24,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:24,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:24,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:24,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,471 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:24,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:24,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180135837] [2024-11-10 19:27:24,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180135837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:24,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:24,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:27:24,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302907807] [2024-11-10 19:27:24,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:24,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:27:24,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:24,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:27:24,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:24,473 INFO L87 Difference]: Start difference. First operand 90 states and 101 transitions. Second operand has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:24,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:24,572 INFO L93 Difference]: Finished difference Result 98 states and 110 transitions. [2024-11-10 19:27:24,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:27:24,573 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-11-10 19:27:24,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:24,575 INFO L225 Difference]: With dead ends: 98 [2024-11-10 19:27:24,575 INFO L226 Difference]: Without dead ends: 96 [2024-11-10 19:27:24,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-10 19:27:24,576 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 54 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:24,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 76 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:24,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-10 19:27:24,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 84. [2024-11-10 19:27:24,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 68 states have (on average 1.1911764705882353) internal successors, (81), 75 states have internal predecessors, (81), 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) [2024-11-10 19:27:24,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 93 transitions. [2024-11-10 19:27:24,584 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 93 transitions. Word has length 44 [2024-11-10 19:27:24,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:24,584 INFO L471 AbstractCegarLoop]: Abstraction has 84 states and 93 transitions. [2024-11-10 19:27:24,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.5) internal successors, (30), 5 states have internal predecessors, (30), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-10 19:27:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 93 transitions. [2024-11-10 19:27:24,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-10 19:27:24,586 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:24,587 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-10 19:27:24,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-10 19:27:24,587 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:24,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:24,587 INFO L85 PathProgramCache]: Analyzing trace with hash 289874731, now seen corresponding path program 1 times [2024-11-10 19:27:24,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:24,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302113383] [2024-11-10 19:27:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:24,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:24,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [955282493] [2024-11-10 19:27:24,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:24,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:24,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:24,611 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) [2024-11-10 19:27:24,613 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 19:27:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:24,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-10 19:27:24,663 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:25,586 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:25,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:26,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302113383] [2024-11-10 19:27:26,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955282493] [2024-11-10 19:27:26,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955282493] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:26,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:26,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-10 19:27:26,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [816048423] [2024-11-10 19:27:26,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:26,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 19:27:26,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:26,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 19:27:26,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-10 19:27:26,700 INFO L87 Difference]: Start difference. First operand 84 states and 93 transitions. Second operand has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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) [2024-11-10 19:27:30,651 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.14s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:27:31,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:31,670 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2024-11-10 19:27:31,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:27:31,671 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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 44 [2024-11-10 19:27:31,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:31,672 INFO L225 Difference]: With dead ends: 116 [2024-11-10 19:27:31,672 INFO L226 Difference]: Without dead ends: 112 [2024-11-10 19:27:31,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=172, Invalid=428, Unknown=0, NotChecked=0, Total=600 [2024-11-10 19:27:31,673 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 91 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:31,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 108 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-10 19:27:31,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-10 19:27:31,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 90. [2024-11-10 19:27:31,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 76 states have (on average 1.118421052631579) internal successors, (85), 81 states have internal predecessors, (85), 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) [2024-11-10 19:27:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 97 transitions. [2024-11-10 19:27:31,687 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 97 transitions. Word has length 44 [2024-11-10 19:27:31,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:31,687 INFO L471 AbstractCegarLoop]: Abstraction has 90 states and 97 transitions. [2024-11-10 19:27:31,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 3.0) internal successors, (33), 11 states have internal predecessors, (33), 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) [2024-11-10 19:27:31,687 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 97 transitions. [2024-11-10 19:27:31,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-10 19:27:31,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:31,690 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:31,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 19:27:31,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:31,894 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:31,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:31,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1103445019, now seen corresponding path program 1 times [2024-11-10 19:27:31,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:31,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984251770] [2024-11-10 19:27:31,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:31,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:31,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2081364346] [2024-11-10 19:27:31,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:31,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:31,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:31,912 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) [2024-11-10 19:27:31,913 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 19:27:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:31,959 INFO L255 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 19:27:31,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:32,478 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:32,479 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:34,064 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-10 19:27:34,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:34,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984251770] [2024-11-10 19:27:34,065 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:34,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2081364346] [2024-11-10 19:27:34,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2081364346] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:27:34,065 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:27:34,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-11-10 19:27:34,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449346388] [2024-11-10 19:27:34,066 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:34,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-10 19:27:34,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:34,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-10 19:27:34,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-10 19:27:34,067 INFO L87 Difference]: Start difference. First operand 90 states and 97 transitions. Second operand has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 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) [2024-11-10 19:27:36,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:36,947 INFO L93 Difference]: Finished difference Result 115 states and 131 transitions. [2024-11-10 19:27:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-10 19:27:36,947 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 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 50 [2024-11-10 19:27:36,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:36,948 INFO L225 Difference]: With dead ends: 115 [2024-11-10 19:27:36,948 INFO L226 Difference]: Without dead ends: 114 [2024-11-10 19:27:36,949 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=214, Invalid=542, Unknown=0, NotChecked=0, Total=756 [2024-11-10 19:27:36,949 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 106 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:36,949 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 126 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-10 19:27:36,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2024-11-10 19:27:36,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 79. [2024-11-10 19:27:36,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 66 states have (on average 1.121212121212121) internal successors, (74), 70 states have internal predecessors, (74), 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) [2024-11-10 19:27:36,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 86 transitions. [2024-11-10 19:27:36,956 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 86 transitions. Word has length 50 [2024-11-10 19:27:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:36,957 INFO L471 AbstractCegarLoop]: Abstraction has 79 states and 86 transitions. [2024-11-10 19:27:36,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 4.2) internal successors, (63), 16 states have internal predecessors, (63), 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) [2024-11-10 19:27:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 86 transitions. [2024-11-10 19:27:36,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-10 19:27:36,958 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:36,958 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:36,973 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 19:27:37,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-10 19:27:37,159 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:37,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:37,159 INFO L85 PathProgramCache]: Analyzing trace with hash 152942788, now seen corresponding path program 1 times [2024-11-10 19:27:37,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:37,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394541326] [2024-11-10 19:27:37,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:37,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:37,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:37,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:37,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:37,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:37,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:37,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:37,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:37,354 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:37,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:37,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394541326] [2024-11-10 19:27:37,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394541326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:37,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112241029] [2024-11-10 19:27:37,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:37,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:37,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:37,361 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) [2024-11-10 19:27:37,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 19:27:37,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:37,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-10 19:27:37,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:37,515 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:37,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:37,640 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:37,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112241029] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:27:37,641 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:27:37,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2024-11-10 19:27:37,641 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305263590] [2024-11-10 19:27:37,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:37,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 19:27:37,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:37,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 19:27:37,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-10 19:27:37,642 INFO L87 Difference]: Start difference. First operand 79 states and 86 transitions. Second operand has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-10 19:27:37,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:37,983 INFO L93 Difference]: Finished difference Result 85 states and 94 transitions. [2024-11-10 19:27:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 19:27:37,983 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 51 [2024-11-10 19:27:37,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:37,984 INFO L225 Difference]: With dead ends: 85 [2024-11-10 19:27:37,984 INFO L226 Difference]: Without dead ends: 83 [2024-11-10 19:27:37,984 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 102 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-11-10 19:27:37,985 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 126 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:37,985 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 121 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:27:37,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-10 19:27:37,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 77. [2024-11-10 19:27:37,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 68 states have internal predecessors, (72), 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) [2024-11-10 19:27:37,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 84 transitions. [2024-11-10 19:27:37,996 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 84 transitions. Word has length 51 [2024-11-10 19:27:37,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:37,997 INFO L471 AbstractCegarLoop]: Abstraction has 77 states and 84 transitions. [2024-11-10 19:27:37,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 14 states have internal predecessors, (74), 6 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-11-10 19:27:37,997 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 84 transitions. [2024-11-10 19:27:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-10 19:27:37,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:37,998 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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, 1] [2024-11-10 19:27:38,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:38,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 19:27:38,198 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:38,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:38,199 INFO L85 PathProgramCache]: Analyzing trace with hash 446259139, now seen corresponding path program 1 times [2024-11-10 19:27:38,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:38,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780517673] [2024-11-10 19:27:38,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:38,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:38,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:38,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [176397292] [2024-11-10 19:27:38,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:38,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:38,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:38,225 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) [2024-11-10 19:27:38,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 19:27:38,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:38,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 19:27:38,273 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:38,730 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-10 19:27:38,730 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:44,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:44,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780517673] [2024-11-10 19:27:44,129 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:27:44,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176397292] [2024-11-10 19:27:44,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176397292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:44,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-10 19:27:44,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-10 19:27:44,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292212310] [2024-11-10 19:27:44,129 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:44,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-10 19:27:44,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:44,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-10 19:27:44,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=362, Unknown=0, NotChecked=0, Total=462 [2024-11-10 19:27:44,131 INFO L87 Difference]: Start difference. First operand 77 states and 84 transitions. Second operand has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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) [2024-11-10 19:27:44,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:44,562 INFO L93 Difference]: Finished difference Result 105 states and 114 transitions. [2024-11-10 19:27:44,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 19:27:44,562 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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 52 [2024-11-10 19:27:44,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:44,563 INFO L225 Difference]: With dead ends: 105 [2024-11-10 19:27:44,563 INFO L226 Difference]: Without dead ends: 103 [2024-11-10 19:27:44,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=221, Invalid=649, Unknown=0, NotChecked=0, Total=870 [2024-11-10 19:27:44,564 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 68 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:44,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 171 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 19:27:44,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2024-11-10 19:27:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 96. [2024-11-10 19:27:44,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-10 19:27:44,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2024-11-10 19:27:44,576 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 52 [2024-11-10 19:27:44,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:44,576 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2024-11-10 19:27:44,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.4166666666666665) internal successors, (41), 12 states have internal predecessors, (41), 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) [2024-11-10 19:27:44,576 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2024-11-10 19:27:44,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-10 19:27:44,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:44,577 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-10 19:27:44,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:44,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:44,778 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:44,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:44,778 INFO L85 PathProgramCache]: Analyzing trace with hash 723625246, now seen corresponding path program 1 times [2024-11-10 19:27:44,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:44,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495068794] [2024-11-10 19:27:44,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:44,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:44,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:44,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:44,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,854 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:44,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 19:27:44,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,862 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:44,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:44,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495068794] [2024-11-10 19:27:44,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495068794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 19:27:44,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 19:27:44,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 19:27:44,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332954107] [2024-11-10 19:27:44,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 19:27:44,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 19:27:44,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:44,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 19:27:44,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:44,864 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-11-10 19:27:44,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:44,917 INFO L93 Difference]: Finished difference Result 102 states and 111 transitions. [2024-11-10 19:27:44,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 19:27:44,918 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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 57 [2024-11-10 19:27:44,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:44,919 INFO L225 Difference]: With dead ends: 102 [2024-11-10 19:27:44,919 INFO L226 Difference]: Without dead ends: 101 [2024-11-10 19:27:44,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-10 19:27:44,920 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 6 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:44,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 107 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 19:27:44,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-10 19:27:44,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 96. [2024-11-10 19:27:44,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 84 states have (on average 1.0833333333333333) internal successors, (91), 86 states have internal predecessors, (91), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-10 19:27:44,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 105 transitions. [2024-11-10 19:27:44,929 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 105 transitions. Word has length 57 [2024-11-10 19:27:44,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:44,930 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 105 transitions. [2024-11-10 19:27:44,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-11-10 19:27:44,930 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 105 transitions. [2024-11-10 19:27:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-10 19:27:44,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:44,931 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 19:27:44,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 19:27:44,931 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:44,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:44,931 INFO L85 PathProgramCache]: Analyzing trace with hash 420931545, now seen corresponding path program 1 times [2024-11-10 19:27:44,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:44,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356420450] [2024-11-10 19:27:44,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:44,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:44,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 19:27:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:44,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-10 19:27:44,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:45,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-10 19:27:45,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:45,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-10 19:27:45,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:45,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-10 19:27:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:45,008 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:45,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:27:45,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356420450] [2024-11-10 19:27:45,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356420450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 19:27:45,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [804036182] [2024-11-10 19:27:45,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:45,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:45,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:45,011 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) [2024-11-10 19:27:45,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 19:27:45,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:45,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 19:27:45,056 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:45,108 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:45,109 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:27:45,187 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-10 19:27:45,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [804036182] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:27:45,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 19:27:45,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-10 19:27:45,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293728554] [2024-11-10 19:27:45,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 19:27:45,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-10 19:27:45,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:27:45,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-10 19:27:45,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-10 19:27:45,188 INFO L87 Difference]: Start difference. First operand 96 states and 105 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-10 19:27:45,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 19:27:45,296 INFO L93 Difference]: Finished difference Result 214 states and 239 transitions. [2024-11-10 19:27:45,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 19:27:45,296 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) Word has length 63 [2024-11-10 19:27:45,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 19:27:45,299 INFO L225 Difference]: With dead ends: 214 [2024-11-10 19:27:45,299 INFO L226 Difference]: Without dead ends: 213 [2024-11-10 19:27:45,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-10 19:27:45,300 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 140 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-10 19:27:45,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 111 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-10 19:27:45,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-10 19:27:45,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 203. [2024-11-10 19:27:45,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 186 states have (on average 1.086021505376344) internal successors, (202), 188 states have internal predecessors, (202), 12 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-10 19:27:45,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 226 transitions. [2024-11-10 19:27:45,315 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 226 transitions. Word has length 63 [2024-11-10 19:27:45,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 19:27:45,315 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 226 transitions. [2024-11-10 19:27:45,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 6 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 6 states have call predecessors, (10), 6 states have call successors, (10) [2024-11-10 19:27:45,316 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 226 transitions. [2024-11-10 19:27:45,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-10 19:27:45,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 19:27:45,316 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-10 19:27:45,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-10 19:27:45,517 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,SelfDestructingSolverStorable17 [2024-11-10 19:27:45,517 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-10 19:27:45,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 19:27:45,517 INFO L85 PathProgramCache]: Analyzing trace with hash 2002092733, now seen corresponding path program 1 times [2024-11-10 19:27:45,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 19:27:45,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444410320] [2024-11-10 19:27:45,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:45,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 19:27:45,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-10 19:27:45,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [490925098] [2024-11-10 19:27:45,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 19:27:45,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 19:27:45,536 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 19:27:45,537 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) [2024-11-10 19:27:45,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 19:27:45,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 19:27:45,591 INFO L255 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 19:27:45,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 19:27:46,760 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 19:27:46,760 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 19:28:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 12 proven. 20 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-10 19:28:38,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 19:28:38,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444410320] [2024-11-10 19:28:38,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-10 19:28:38,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [490925098] [2024-11-10 19:28:38,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [490925098] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 19:28:38,783 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-10 19:28:38,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13] total 26 [2024-11-10 19:28:38,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928946284] [2024-11-10 19:28:38,783 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-10 19:28:38,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-10 19:28:38,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 19:28:38,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-10 19:28:38,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=552, Unknown=1, NotChecked=0, Total=702 [2024-11-10 19:28:38,784 INFO L87 Difference]: Start difference. First operand 203 states and 226 transitions. Second operand has 27 states, 26 states have (on average 4.0) internal successors, (104), 26 states have internal predecessors, (104), 5 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2024-11-10 19:28:41,206 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:28:44,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.79s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:28:48,225 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.95s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-10 19:28:50,673 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers []