./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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/freire1_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 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 11:47:13,301 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 11:47:13,383 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 11:47:13,390 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 11:47:13,390 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 11:47:13,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 11:47:13,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 11:47:13,415 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 11:47:13,415 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 11:47:13,416 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 11:47:13,416 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 11:47:13,416 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 11:47:13,417 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 11:47:13,417 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 11:47:13,418 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 11:47:13,418 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 11:47:13,418 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 11:47:13,419 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 11:47:13,419 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 11:47:13,419 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 11:47:13,420 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 11:47:13,423 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 11:47:13,423 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 11:47:13,424 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 11:47:13,424 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 11:47:13,424 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 11:47:13,424 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 11:47:13,424 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 11:47:13,425 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 11:47:13,425 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 11:47:13,425 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 11:47:13,425 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 11:47:13,426 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 11:47:13,426 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 11:47:13,426 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:47:13,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 11:47:13,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 11:47:13,429 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 11:47:13,429 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 11:47:13,429 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 11:47:13,430 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 11:47:13,430 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 11:47:13,430 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 11:47:13,431 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 11:47:13,431 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d1ee9b66acccde8e4802bcc3b75479d1ab3cc8ee3ff178f121f64cc868a595d [2024-11-09 11:47:13,701 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 11:47:13,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 11:47:13,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 11:47:13,735 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 11:47:13,736 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 11:47:13,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2024-11-09 11:47:15,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 11:47:15,388 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 11:47:15,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound100.c [2024-11-09 11:47:15,396 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da0e1d6b/e6e39912e4bc4a41a3eafb262589fe9b/FLAG5aa91c1eb [2024-11-09 11:47:15,759 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5da0e1d6b/e6e39912e4bc4a41a3eafb262589fe9b [2024-11-09 11:47:15,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 11:47:15,763 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 11:47:15,764 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 11:47:15,764 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 11:47:15,769 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 11:47:15,770 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:47:15" (1/1) ... [2024-11-09 11:47:15,771 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55e9f32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:15, skipping insertion in model container [2024-11-09 11:47:15,771 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:47:15" (1/1) ... [2024-11-09 11:47:15,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 11:47:15,969 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:47:15,979 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 11:47:15,996 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 11:47:16,014 INFO L204 MainTranslator]: Completed translation [2024-11-09 11:47:16,015 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16 WrapperNode [2024-11-09 11:47:16,015 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 11:47:16,016 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 11:47:16,016 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 11:47:16,017 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 11:47:16,023 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,050 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-11-09 11:47:16,052 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 11:47:16,053 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 11:47:16,053 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 11:47:16,054 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 11:47:16,063 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,065 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,079 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]. [2024-11-09 11:47:16,081 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,082 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,087 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,091 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,095 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 11:47:16,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 11:47:16,101 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 11:47:16,101 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 11:47:16,102 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (1/1) ... [2024-11-09 11:47:16,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 11:47:16,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:16,138 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) [2024-11-09 11:47:16,147 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 [2024-11-09 11:47:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 11:47:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 11:47:16,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 11:47:16,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 11:47:16,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-09 11:47:16,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-09 11:47:16,259 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 11:47:16,261 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 11:47:16,404 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-09 11:47:16,405 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 11:47:16,415 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 11:47:16,416 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-09 11:47:16,416 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:47:16 BoogieIcfgContainer [2024-11-09 11:47:16,416 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 11:47:16,418 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 11:47:16,419 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 11:47:16,422 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 11:47:16,422 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:47:15" (1/3) ... [2024-11-09 11:47:16,423 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24ec67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:47:16, skipping insertion in model container [2024-11-09 11:47:16,423 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:47:16" (2/3) ... [2024-11-09 11:47:16,424 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b24ec67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:47:16, skipping insertion in model container [2024-11-09 11:47:16,424 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 11:47:16" (3/3) ... [2024-11-09 11:47:16,425 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound100.c [2024-11-09 11:47:16,442 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 11:47:16,442 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-09 11:47:16,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:47:16,533 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;@1527d973, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:47:16,534 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-11-09 11:47:16,539 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:47:16,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-09 11:47:16,546 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:16,547 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 11:47:16,547 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:16,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:16,556 INFO L85 PathProgramCache]: Analyzing trace with hash 889508859, now seen corresponding path program 1 times [2024-11-09 11:47:16,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:16,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221805696] [2024-11-09 11:47:16,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:16,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:47:16,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:47:16,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:16,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221805696] [2024-11-09 11:47:16,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221805696] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:47:16,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:47:16,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:47:16,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073406310] [2024-11-09 11:47:16,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:47:16,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 11:47:16,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:16,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 11:47:16,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 11:47:16,729 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.55) internal successors, (31), 26 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:47:16,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:16,744 INFO L93 Difference]: Finished difference Result 54 states and 67 transitions. [2024-11-09 11:47:16,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 11:47:16,746 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-11-09 11:47:16,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:16,750 INFO L225 Difference]: With dead ends: 54 [2024-11-09 11:47:16,751 INFO L226 Difference]: Without dead ends: 21 [2024-11-09 11:47:16,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 11:47:16,756 INFO L432 NwaCegarLoop]: 28 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, 28 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 [2024-11-09 11:47:16,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:47:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-09 11:47:16,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-09 11:47:16,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-09 11:47:16,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2024-11-09 11:47:16,784 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 6 [2024-11-09 11:47:16,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:16,784 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2024-11-09 11:47:16,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:47:16,785 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2024-11-09 11:47:16,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-09 11:47:16,785 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:16,785 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:47:16,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 11:47:16,786 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:16,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:16,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1806819342, now seen corresponding path program 1 times [2024-11-09 11:47:16,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:16,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213350391] [2024-11-09 11:47:16,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:16,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:16,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:16,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1168164979] [2024-11-09 11:47:16,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:16,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:16,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:16,809 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) [2024-11-09 11:47:16,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 11:47:16,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:47:16,862 INFO L255 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 11:47:16,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:47:16,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:47:16,891 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 11:47:16,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:16,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213350391] [2024-11-09 11:47:16,893 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:47:16,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168164979] [2024-11-09 11:47:16,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168164979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:47:16,893 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:47:16,893 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:47:16,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728333854] [2024-11-09 11:47:16,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:47:16,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 11:47:16,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:16,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 11:47:16,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:47:16,898 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:47:16,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:16,952 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2024-11-09 11:47:16,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:47:16,953 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2024-11-09 11:47:16,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:16,954 INFO L225 Difference]: With dead ends: 34 [2024-11-09 11:47:16,954 INFO L226 Difference]: Without dead ends: 28 [2024-11-09 11:47:16,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 11:47:16,955 INFO L432 NwaCegarLoop]: 16 mSDtfsCounter, 5 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 11:47:16,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 26 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 11:47:16,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-11-09 11:47:16,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-11-09 11:47:16,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:47:16,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 29 transitions. [2024-11-09 11:47:16,964 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 29 transitions. Word has length 7 [2024-11-09 11:47:16,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:16,964 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 29 transitions. [2024-11-09 11:47:16,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 11:47:16,964 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 29 transitions. [2024-11-09 11:47:16,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-09 11:47:16,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:16,966 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:47:16,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 11:47:17,167 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 [2024-11-09 11:47:17,167 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:17,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:17,168 INFO L85 PathProgramCache]: Analyzing trace with hash 888630314, now seen corresponding path program 1 times [2024-11-09 11:47:17,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:17,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144345606] [2024-11-09 11:47:17,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:17,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:17,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:17,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143135442] [2024-11-09 11:47:17,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:17,225 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:17,225 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:17,226 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) [2024-11-09 11:47:17,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 11:47:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:47:17,279 INFO L255 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 11:47:17,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:47:17,352 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:47:17,353 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:47:17,449 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:47:17,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:17,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144345606] [2024-11-09 11:47:17,450 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:47:17,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143135442] [2024-11-09 11:47:17,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143135442] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:47:17,451 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 11:47:17,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-11-09 11:47:17,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660765398] [2024-11-09 11:47:17,451 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 11:47:17,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 11:47:17,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:17,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 11:47:17,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-09 11:47:17,453 INFO L87 Difference]: Start difference. First operand 28 states and 29 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:47:17,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:17,556 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2024-11-09 11:47:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 11:47:17,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2024-11-09 11:47:17,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:17,558 INFO L225 Difference]: With dead ends: 50 [2024-11-09 11:47:17,558 INFO L226 Difference]: Without dead ends: 40 [2024-11-09 11:47:17,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-11-09 11:47:17,560 INFO L432 NwaCegarLoop]: 17 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:47:17,561 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 41 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:47:17,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2024-11-09 11:47:17,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2024-11-09 11:47:17,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 34 states have (on average 1.0294117647058822) internal successors, (35), 34 states have internal predecessors, (35), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-09 11:47:17,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2024-11-09 11:47:17,575 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 18 [2024-11-09 11:47:17,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:17,576 INFO L471 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2024-11-09 11:47:17,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-09 11:47:17,577 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2024-11-09 11:47:17,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-09 11:47:17,580 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:17,580 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2024-11-09 11:47:17,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 11:47:17,780 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 [2024-11-09 11:47:17,781 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:17,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:17,782 INFO L85 PathProgramCache]: Analyzing trace with hash 860302606, now seen corresponding path program 2 times [2024-11-09 11:47:17,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:17,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004442942] [2024-11-09 11:47:17,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:17,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:17,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:17,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1090532412] [2024-11-09 11:47:17,838 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 11:47:17,839 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:17,839 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:17,843 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) [2024-11-09 11:47:17,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 11:47:17,915 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 11:47:17,915 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:47:17,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-09 11:47:17,918 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:47:18,024 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 11:47:18,024 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:47:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-09 11:47:18,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004442942] [2024-11-09 11:47:18,222 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:47:18,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090532412] [2024-11-09 11:47:18,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090532412] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:47:18,223 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 11:47:18,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-09 11:47:18,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721330597] [2024-11-09 11:47:18,223 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 11:47:18,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-09 11:47:18,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:18,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-09 11:47:18,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-11-09 11:47:18,229 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 11:47:18,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:18,469 INFO L93 Difference]: Finished difference Result 83 states and 97 transitions. [2024-11-09 11:47:18,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-09 11:47:18,470 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 51 [2024-11-09 11:47:18,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:18,471 INFO L225 Difference]: With dead ends: 83 [2024-11-09 11:47:18,471 INFO L226 Difference]: Without dead ends: 82 [2024-11-09 11:47:18,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-11-09 11:47:18,473 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 21 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:47:18,477 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 127 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 11:47:18,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-11-09 11:47:18,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-11-09 11:47:18,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 70 states have (on average 1.0142857142857142) internal successors, (71), 70 states have internal predecessors, (71), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-09 11:47:18,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 91 transitions. [2024-11-09 11:47:18,494 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 91 transitions. Word has length 51 [2024-11-09 11:47:18,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:18,494 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 91 transitions. [2024-11-09 11:47:18,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 12 states have internal predecessors, (62), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-09 11:47:18,495 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 91 transitions. [2024-11-09 11:47:18,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2024-11-09 11:47:18,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:18,498 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1] [2024-11-09 11:47:18,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 11:47:18,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:18,703 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:18,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:18,703 INFO L85 PathProgramCache]: Analyzing trace with hash 1105989774, now seen corresponding path program 3 times [2024-11-09 11:47:18,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:18,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282604892] [2024-11-09 11:47:18,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:18,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:18,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:18,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [762540843] [2024-11-09 11:47:18,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 11:47:18,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:18,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:18,754 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) [2024-11-09 11:47:18,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 11:47:18,849 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-11-09 11:47:18,849 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:47:18,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-09 11:47:18,854 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:47:19,072 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 11:47:19,072 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:47:19,593 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-09 11:47:19,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:19,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282604892] [2024-11-09 11:47:19,593 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:47:19,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [762540843] [2024-11-09 11:47:19,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [762540843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:47:19,594 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 11:47:19,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-11-09 11:47:19,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661775538] [2024-11-09 11:47:19,594 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 11:47:19,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-09 11:47:19,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:19,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-09 11:47:19,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-11-09 11:47:19,601 INFO L87 Difference]: Start difference. First operand 82 states and 91 transitions. Second operand has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 11:47:20,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:20,471 INFO L93 Difference]: Finished difference Result 167 states and 199 transitions. [2024-11-09 11:47:20,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-09 11:47:20,471 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Word has length 117 [2024-11-09 11:47:20,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:20,474 INFO L225 Difference]: With dead ends: 167 [2024-11-09 11:47:20,474 INFO L226 Difference]: Without dead ends: 166 [2024-11-09 11:47:20,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 11:47:20,476 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 36 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 679 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 679 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-09 11:47:20,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 469 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 679 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-09 11:47:20,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-09 11:47:20,501 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-11-09 11:47:20,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 142 states have (on average 1.0070422535211268) internal successors, (143), 142 states have internal predecessors, (143), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-09 11:47:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 187 transitions. [2024-11-09 11:47:20,510 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 187 transitions. Word has length 117 [2024-11-09 11:47:20,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:20,510 INFO L471 AbstractCegarLoop]: Abstraction has 166 states and 187 transitions. [2024-11-09 11:47:20,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.826086956521739) internal successors, (134), 24 states have internal predecessors, (134), 20 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-09 11:47:20,511 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 187 transitions. [2024-11-09 11:47:20,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2024-11-09 11:47:20,520 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:20,520 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1] [2024-11-09 11:47:20,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 11:47:20,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:20,721 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:20,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:20,722 INFO L85 PathProgramCache]: Analyzing trace with hash -1244055666, now seen corresponding path program 4 times [2024-11-09 11:47:20,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:20,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961241801] [2024-11-09 11:47:20,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:20,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:20,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:20,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1360564022] [2024-11-09 11:47:20,859 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 11:47:20,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:20,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:20,864 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) [2024-11-09 11:47:20,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 11:47:20,979 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 11:47:20,980 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:47:20,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-11-09 11:47:20,988 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:47:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-09 11:47:21,448 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:47:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-09 11:47:22,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:22,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961241801] [2024-11-09 11:47:22,693 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:47:22,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360564022] [2024-11-09 11:47:22,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360564022] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:47:22,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 11:47:22,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-11-09 11:47:22,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883455994] [2024-11-09 11:47:22,693 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 11:47:22,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-11-09 11:47:22,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:22,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-11-09 11:47:22,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-11-09 11:47:22,697 INFO L87 Difference]: Start difference. First operand 166 states and 187 transitions. Second operand has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 11:47:25,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:25,805 INFO L93 Difference]: Finished difference Result 335 states and 403 transitions. [2024-11-09 11:47:25,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-11-09 11:47:25,805 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) Word has length 249 [2024-11-09 11:47:25,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:25,808 INFO L225 Difference]: With dead ends: 335 [2024-11-09 11:47:25,809 INFO L226 Difference]: Without dead ends: 334 [2024-11-09 11:47:25,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 450 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-11-09 11:47:25,811 INFO L432 NwaCegarLoop]: 100 mSDtfsCounter, 75 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 2805 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 2830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 2805 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-09 11:47:25,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 1829 Invalid, 2830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 2805 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-09 11:47:25,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2024-11-09 11:47:25,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 334. [2024-11-09 11:47:25,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 334 states, 286 states have (on average 1.0034965034965035) internal successors, (287), 286 states have internal predecessors, (287), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2024-11-09 11:47:25,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 334 states and 379 transitions. [2024-11-09 11:47:25,848 INFO L78 Accepts]: Start accepts. Automaton has 334 states and 379 transitions. Word has length 249 [2024-11-09 11:47:25,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:25,849 INFO L471 AbstractCegarLoop]: Abstraction has 334 states and 379 transitions. [2024-11-09 11:47:25,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.914893617021277) internal successors, (278), 48 states have internal predecessors, (278), 44 states have call successors, (44), 1 states have call predecessors, (44), 1 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-11-09 11:47:25,849 INFO L276 IsEmpty]: Start isEmpty. Operand 334 states and 379 transitions. [2024-11-09 11:47:25,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 514 [2024-11-09 11:47:25,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:25,867 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1, 1] [2024-11-09 11:47:25,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 11:47:26,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:26,071 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:26,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash 543229326, now seen corresponding path program 5 times [2024-11-09 11:47:26,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:26,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920421560] [2024-11-09 11:47:26,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:26,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:26,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:26,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1584123516] [2024-11-09 11:47:26,298 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 11:47:26,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:26,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:26,300 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) [2024-11-09 11:47:26,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 11:47:26,513 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-11-09 11:47:26,514 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:47:26,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 813 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-11-09 11:47:26,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:47:27,655 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-09 11:47:27,656 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:47:31,259 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-11-09 11:47:31,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:31,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920421560] [2024-11-09 11:47:31,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:47:31,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584123516] [2024-11-09 11:47:31,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584123516] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:47:31,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 11:47:31,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-11-09 11:47:31,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511248494] [2024-11-09 11:47:31,260 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 11:47:31,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-09 11:47:31,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:31,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-09 11:47:31,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-11-09 11:47:31,267 INFO L87 Difference]: Start difference. First operand 334 states and 379 transitions. Second operand has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-09 11:47:44,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:44,869 INFO L93 Difference]: Finished difference Result 671 states and 811 transitions. [2024-11-09 11:47:44,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-09 11:47:44,870 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) Word has length 513 [2024-11-09 11:47:44,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:44,875 INFO L225 Difference]: With dead ends: 671 [2024-11-09 11:47:44,875 INFO L226 Difference]: Without dead ends: 670 [2024-11-09 11:47:44,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 930 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-11-09 11:47:44,880 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 147 mSDsluCounter, 6965 mSDsCounter, 0 mSdLazyCounter, 11375 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 7161 SdHoareTripleChecker+Invalid, 11424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 11375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-09 11:47:44,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 7161 Invalid, 11424 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 11375 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-09 11:47:44,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-09 11:47:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 670. [2024-11-09 11:47:44,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 670 states, 574 states have (on average 1.0017421602787457) internal successors, (575), 574 states have internal predecessors, (575), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 11:47:44,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 670 states to 670 states and 763 transitions. [2024-11-09 11:47:44,940 INFO L78 Accepts]: Start accepts. Automaton has 670 states and 763 transitions. Word has length 513 [2024-11-09 11:47:44,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:44,941 INFO L471 AbstractCegarLoop]: Abstraction has 670 states and 763 transitions. [2024-11-09 11:47:44,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.957894736842105) internal successors, (566), 96 states have internal predecessors, (566), 92 states have call successors, (92), 1 states have call predecessors, (92), 1 states have return successors, (92), 92 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-09 11:47:44,942 INFO L276 IsEmpty]: Start isEmpty. Operand 670 states and 763 transitions. [2024-11-09 11:47:44,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1042 [2024-11-09 11:47:44,968 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:44,968 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1, 1] [2024-11-09 11:47:44,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 11:47:45,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:45,169 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:45,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:45,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1361486222, now seen corresponding path program 6 times [2024-11-09 11:47:45,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:45,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217846819] [2024-11-09 11:47:45,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:45,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:45,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:45,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [653429555] [2024-11-09 11:47:45,469 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 11:47:45,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:45,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:45,471 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) [2024-11-09 11:47:45,472 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 11:47:46,351 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-11-09 11:47:46,351 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 11:47:46,357 INFO L255 TraceCheckSpWp]: Trace formula consists of 1629 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-11-09 11:47:46,374 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:47:50,204 INFO L134 CoverageAnalysis]: Checked inductivity of 48363 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-09 11:47:50,204 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:47:50,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:47:50,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217846819] [2024-11-09 11:47:50,733 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:47:50,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653429555] [2024-11-09 11:47:50,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653429555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 11:47:50,735 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-09 11:47:50,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-11-09 11:47:50,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344407520] [2024-11-09 11:47:50,735 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-09 11:47:50,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-11-09 11:47:50,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:47:50,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-11-09 11:47:50,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-11-09 11:47:50,749 INFO L87 Difference]: Start difference. First operand 670 states and 763 transitions. Second operand has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 11:47:56,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 11:47:56,442 INFO L93 Difference]: Finished difference Result 682 states and 777 transitions. [2024-11-09 11:47:56,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-11-09 11:47:56,443 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Word has length 1041 [2024-11-09 11:47:56,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 11:47:56,449 INFO L225 Difference]: With dead ends: 682 [2024-11-09 11:47:56,449 INFO L226 Difference]: Without dead ends: 681 [2024-11-09 11:47:56,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1152 GetRequests, 958 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-11-09 11:47:56,458 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 473 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 247 SdHoareTripleChecker+Invalid, 686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-09 11:47:56,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 247 Invalid, 686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-09 11:47:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2024-11-09 11:47:56,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 677. [2024-11-09 11:47:56,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 677 states, 580 states have (on average 1.0017241379310344) internal successors, (581), 580 states have internal predecessors, (581), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2024-11-09 11:47:56,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 771 transitions. [2024-11-09 11:47:56,502 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 771 transitions. Word has length 1041 [2024-11-09 11:47:56,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 11:47:56,504 INFO L471 AbstractCegarLoop]: Abstraction has 677 states and 771 transitions. [2024-11-09 11:47:56,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.917525773195877) internal successors, (574), 98 states have internal predecessors, (574), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-09 11:47:56,505 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 771 transitions. [2024-11-09 11:47:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1053 [2024-11-09 11:47:56,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 11:47:56,529 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1, 1] [2024-11-09 11:47:56,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 11:47:56,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:56,730 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2024-11-09 11:47:56,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:47:56,731 INFO L85 PathProgramCache]: Analyzing trace with hash -444417366, now seen corresponding path program 7 times [2024-11-09 11:47:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:47:56,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656839895] [2024-11-09 11:47:56,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:47:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:47:57,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 11:47:57,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [954696587] [2024-11-09 11:47:57,024 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 11:47:57,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 11:47:57,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 11:47:57,026 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) [2024-11-09 11:47:57,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 11:47:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:47:57,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 1646 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-11-09 11:47:57,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 11:48:01,013 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-09 11:48:01,013 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 11:48:14,451 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-11-09 11:48:14,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:48:14,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656839895] [2024-11-09 11:48:14,451 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 11:48:14,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954696587] [2024-11-09 11:48:14,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954696587] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 11:48:14,452 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-09 11:48:14,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-11-09 11:48:14,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529581910] [2024-11-09 11:48:14,452 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-09 11:48:14,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-11-09 11:48:14,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:48:14,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-11-09 11:48:14,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-11-09 11:48:14,466 INFO L87 Difference]: Start difference. First operand 677 states and 771 transitions. Second operand has 194 states, 193 states have (on average 5.979274611398964) internal successors, (1154), 194 states have internal predecessors, (1154), 190 states have call successors, (190), 1 states have call predecessors, (190), 1 states have return successors, (190), 190 states have call predecessors, (190), 190 states have call successors, (190)