./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 20:45:23,272 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 20:45:23,348 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-14 20:45:23,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 20:45:23,358 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 20:45:23,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 20:45:23,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 20:45:23,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 20:45:23,390 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 20:45:23,391 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 20:45:23,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 20:45:23,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 20:45:23,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 20:45:23,392 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 20:45:23,394 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 20:45:23,394 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 20:45:23,395 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 20:45:23,395 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 20:45:23,395 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 20:45:23,395 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 20:45:23,396 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 20:45:23,399 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 20:45:23,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 20:45:23,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 20:45:23,400 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 20:45:23,400 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-14 20:45:23,400 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-14 20:45:23,401 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 20:45:23,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 20:45:23,401 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 20:45:23,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 20:45:23,402 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 20:45:23,402 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 20:45:23,402 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 20:45:23,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:45:23,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 20:45:23,403 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 20:45:23,403 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 20:45:23,404 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 20:45:23,405 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 20:45:23,405 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 20:45:23,405 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 20:45:23,405 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 20:45:23,406 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 20:45:23,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff053df41c1fc922299a13f2dac2a98df2d05e146d51bf11ac9e37ddfefad6a [2024-10-14 20:45:23,663 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 20:45:23,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 20:45:23,692 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 20:45:23,693 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 20:45:23,695 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 20:45:23,696 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c [2024-10-14 20:45:25,164 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 20:45:25,340 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 20:45:25,341 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire1_valuebound20.c [2024-10-14 20:45:25,349 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb38492f/2876800f9ae549dcb233e7f1931e092d/FLAG2129bc0bb [2024-10-14 20:45:25,729 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cfb38492f/2876800f9ae549dcb233e7f1931e092d [2024-10-14 20:45:25,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 20:45:25,732 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 20:45:25,735 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 20:45:25,735 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 20:45:25,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 20:45:25,743 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:45:25" (1/1) ... [2024-10-14 20:45:25,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f81c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:25, skipping insertion in model container [2024-10-14 20:45:25,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:45:25" (1/1) ... [2024-10-14 20:45:25,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 20:45:25,946 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:45:25,964 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 20:45:25,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 20:45:26,000 INFO L204 MainTranslator]: Completed translation [2024-10-14 20:45:26,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26 WrapperNode [2024-10-14 20:45:26,000 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 20:45:26,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 20:45:26,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 20:45:26,002 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 20:45:26,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,033 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 45 [2024-10-14 20:45:26,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 20:45:26,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 20:45:26,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 20:45:26,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 20:45:26,043 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,044 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,049 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,067 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 20:45:26,068 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,068 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,072 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,077 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,079 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,080 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,085 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 20:45:26,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 20:45:26,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 20:45:26,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 20:45:26,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (1/1) ... [2024-10-14 20:45:26,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 20:45:26,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:26,119 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 20:45:26,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 20:45:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 20:45:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 20:45:26,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 20:45:26,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 20:45:26,170 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-14 20:45:26,170 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-14 20:45:26,222 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 20:45:26,223 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 20:45:26,359 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-14 20:45:26,359 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 20:45:26,393 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 20:45:26,393 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 20:45:26,394 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:45:26 BoogieIcfgContainer [2024-10-14 20:45:26,394 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 20:45:26,396 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 20:45:26,396 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 20:45:26,399 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 20:45:26,400 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:45:25" (1/3) ... [2024-10-14 20:45:26,400 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e69469f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:45:26, skipping insertion in model container [2024-10-14 20:45:26,401 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:45:26" (2/3) ... [2024-10-14 20:45:26,402 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e69469f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:45:26, skipping insertion in model container [2024-10-14 20:45:26,402 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:45:26" (3/3) ... [2024-10-14 20:45:26,404 INFO L112 eAbstractionObserver]: Analyzing ICFG freire1_valuebound20.c [2024-10-14 20:45:26,421 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 20:45:26,421 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-10-14 20:45:26,486 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 20:45:26,512 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;@5e8e994d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 20:45:26,512 INFO L334 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-10-14 20:45:26,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 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) [2024-10-14 20:45:26,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-10-14 20:45:26,537 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:26,538 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-10-14 20:45:26,541 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)] === [2024-10-14 20:45:26,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:26,561 INFO L85 PathProgramCache]: Analyzing trace with hash 86045589, now seen corresponding path program 1 times [2024-10-14 20:45:26,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:26,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139587623] [2024-10-14 20:45:26,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:26,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:26,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:45:26,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:45:26,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:45:26,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139587623] [2024-10-14 20:45:26,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139587623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:45:26,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:45:26,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:45:26,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346812764] [2024-10-14 20:45:26,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:45:26,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 20:45:26,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:45:26,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 20:45:26,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 20:45:26,730 INFO L87 Difference]: Start difference. First operand has 25 states, 15 states have (on average 1.7333333333333334) internal successors, (26), 21 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) Second operand has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:45:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:45:26,758 INFO L93 Difference]: Finished difference Result 46 states and 59 transitions. [2024-10-14 20:45:26,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 20:45:26,760 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-10-14 20:45:26,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:45:26,765 INFO L225 Difference]: With dead ends: 46 [2024-10-14 20:45:26,765 INFO L226 Difference]: Without dead ends: 20 [2024-10-14 20:45:26,768 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 [2024-10-14 20:45:26,773 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:45:26,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 22 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:45:26,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-10-14 20:45:26,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-10-14 20:45:26,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 17 states have internal predecessors, (18), 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) [2024-10-14 20:45:26,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2024-10-14 20:45:26,804 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 5 [2024-10-14 20:45:26,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:45:26,805 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2024-10-14 20:45:26,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:45:26,805 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2024-10-14 20:45:26,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-10-14 20:45:26,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:26,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-14 20:45:26,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 20:45:26,806 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)] === [2024-10-14 20:45:26,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:26,807 INFO L85 PathProgramCache]: Analyzing trace with hash -1625705548, now seen corresponding path program 1 times [2024-10-14 20:45:26,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:26,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832243277] [2024-10-14 20:45:26,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:26,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:45:26,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1259658732] [2024-10-14 20:45:26,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:26,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:26,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:26,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:45:26,831 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 20:45:26,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:45:26,875 INFO L255 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-14 20:45:26,879 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:45:26,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:45:26,905 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 20:45:26,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:45:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832243277] [2024-10-14 20:45:26,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:45:26,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259658732] [2024-10-14 20:45:26,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259658732] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 20:45:26,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 20:45:26,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 20:45:26,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285360878] [2024-10-14 20:45:26,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 20:45:26,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 20:45:26,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:45:26,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 20:45:26,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:45:26,910 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:45:26,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:45:26,956 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2024-10-14 20:45:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 20:45:26,957 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2024-10-14 20:45:26,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:45:26,958 INFO L225 Difference]: With dead ends: 33 [2024-10-14 20:45:26,958 INFO L226 Difference]: Without dead ends: 27 [2024-10-14 20:45:26,958 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 20:45:26,959 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 5 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 20:45:26,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 23 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 20:45:26,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-10-14 20:45:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-10-14 20:45:26,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 23 states have internal predecessors, (24), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-10-14 20:45:26,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-10-14 20:45:26,974 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 6 [2024-10-14 20:45:26,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:45:26,974 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-10-14 20:45:26,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 20:45:26,975 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-10-14 20:45:26,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 20:45:26,976 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:26,976 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 20:45:26,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 20:45:27,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:27,177 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)] === [2024-10-14 20:45:27,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:27,178 INFO L85 PathProgramCache]: Analyzing trace with hash 330233028, now seen corresponding path program 1 times [2024-10-14 20:45:27,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:27,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870946664] [2024-10-14 20:45:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:27,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:27,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:45:27,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1639089487] [2024-10-14 20:45:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:27,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:27,216 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:27,218 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:45:27,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 20:45:27,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:45:27,274 INFO L255 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-14 20:45:27,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:45:27,343 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:45:27,343 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:45:27,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 20:45:27,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:45:27,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870946664] [2024-10-14 20:45:27,434 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:45:27,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639089487] [2024-10-14 20:45:27,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639089487] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:45:27,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:45:27,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-10-14 20:45:27,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210058140] [2024-10-14 20:45:27,437 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:45:27,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 20:45:27,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:45:27,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 20:45:27,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-10-14 20:45:27,440 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2024-10-14 20:45:27,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:45:27,556 INFO L93 Difference]: Finished difference Result 49 states and 60 transitions. [2024-10-14 20:45:27,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 20:45:27,557 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) Word has length 17 [2024-10-14 20:45:27,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:45:27,559 INFO L225 Difference]: With dead ends: 49 [2024-10-14 20:45:27,559 INFO L226 Difference]: Without dead ends: 39 [2024-10-14 20:45:27,560 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-10-14 20:45:27,562 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 17 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:45:27,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 49 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:45:27,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2024-10-14 20:45:27,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2024-10-14 20:45:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 33 states have (on average 1.0303030303030303) internal successors, (34), 33 states have internal predecessors, (34), 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) [2024-10-14 20:45:27,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2024-10-14 20:45:27,574 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 17 [2024-10-14 20:45:27,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:45:27,576 INFO L471 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2024-10-14 20:45:27,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 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) [2024-10-14 20:45:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2024-10-14 20:45:27,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-10-14 20:45:27,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:27,579 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1] [2024-10-14 20:45:27,595 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 20:45:27,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-14 20:45:27,784 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)] === [2024-10-14 20:45:27,785 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:27,785 INFO L85 PathProgramCache]: Analyzing trace with hash -323182668, now seen corresponding path program 2 times [2024-10-14 20:45:27,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:27,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011928036] [2024-10-14 20:45:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:27,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:45:27,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1369021864] [2024-10-14 20:45:27,848 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-14 20:45:27,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:27,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:27,852 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:45:27,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 20:45:27,918 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-14 20:45:27,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:45:27,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-14 20:45:27,921 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:45:28,013 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:45:28,014 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:45:28,195 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-14 20:45:28,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:45:28,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011928036] [2024-10-14 20:45:28,196 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:45:28,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369021864] [2024-10-14 20:45:28,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369021864] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:45:28,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:45:28,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-10-14 20:45:28,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830656259] [2024-10-14 20:45:28,197 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:45:28,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 20:45:28,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:45:28,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 20:45:28,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-10-14 20:45:28,199 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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) [2024-10-14 20:45:28,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:45:28,431 INFO L93 Difference]: Finished difference Result 82 states and 96 transitions. [2024-10-14 20:45:28,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-14 20:45:28,432 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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 50 [2024-10-14 20:45:28,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:45:28,433 INFO L225 Difference]: With dead ends: 82 [2024-10-14 20:45:28,433 INFO L226 Difference]: Without dead ends: 81 [2024-10-14 20:45:28,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-10-14 20:45:28,435 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 112 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 20:45:28,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 138 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 20:45:28,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-14 20:45:28,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-14 20:45:28,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 69 states have (on average 1.0144927536231885) internal successors, (70), 69 states have internal predecessors, (70), 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) [2024-10-14 20:45:28,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 90 transitions. [2024-10-14 20:45:28,451 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 90 transitions. Word has length 50 [2024-10-14 20:45:28,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:45:28,451 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 90 transitions. [2024-10-14 20:45:28,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.545454545454546) internal successors, (61), 12 states have internal predecessors, (61), 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) [2024-10-14 20:45:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 90 transitions. [2024-10-14 20:45:28,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-10-14 20:45:28,456 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:28,456 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1] [2024-10-14 20:45:28,473 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-14 20:45:28,660 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 [2024-10-14 20:45:28,661 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)] === [2024-10-14 20:45:28,661 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:28,661 INFO L85 PathProgramCache]: Analyzing trace with hash -223133260, now seen corresponding path program 3 times [2024-10-14 20:45:28,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:28,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729891525] [2024-10-14 20:45:28,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:28,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:45:28,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [817515296] [2024-10-14 20:45:28,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-14 20:45:28,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:28,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:28,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:45:28,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-14 20:45:28,850 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-10-14 20:45:28,850 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:45:28,851 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-14 20:45:28,858 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:45:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-14 20:45:29,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:45:29,552 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-10-14 20:45:29,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:45:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729891525] [2024-10-14 20:45:29,552 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:45:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [817515296] [2024-10-14 20:45:29,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [817515296] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:45:29,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:45:29,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 23 [2024-10-14 20:45:29,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485280974] [2024-10-14 20:45:29,553 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:45:29,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-10-14 20:45:29,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:45:29,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-10-14 20:45:29,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2024-10-14 20:45:29,556 INFO L87 Difference]: Start difference. First operand 81 states and 90 transitions. Second operand has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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) [2024-10-14 20:45:30,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:45:30,421 INFO L93 Difference]: Finished difference Result 166 states and 198 transitions. [2024-10-14 20:45:30,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-14 20:45:30,421 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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 116 [2024-10-14 20:45:30,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:45:30,424 INFO L225 Difference]: With dead ends: 166 [2024-10-14 20:45:30,427 INFO L226 Difference]: Without dead ends: 165 [2024-10-14 20:45:30,428 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=406, Invalid=716, Unknown=0, NotChecked=0, Total=1122 [2024-10-14 20:45:30,429 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 36 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 682 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 682 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:45:30,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 471 Invalid, 694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 682 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 20:45:30,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states. [2024-10-14 20:45:30,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2024-10-14 20:45:30,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 141 states have (on average 1.0070921985815602) internal successors, (142), 141 states have internal predecessors, (142), 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) [2024-10-14 20:45:30,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2024-10-14 20:45:30,452 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 116 [2024-10-14 20:45:30,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:45:30,453 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2024-10-14 20:45:30,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 23 states have (on average 5.782608695652174) internal successors, (133), 24 states have internal predecessors, (133), 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) [2024-10-14 20:45:30,453 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2024-10-14 20:45:30,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-10-14 20:45:30,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:30,481 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1] [2024-10-14 20:45:30,499 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-14 20:45:30,685 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 [2024-10-14 20:45:30,686 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)] === [2024-10-14 20:45:30,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:30,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1657862732, now seen corresponding path program 4 times [2024-10-14 20:45:30,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:30,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870786513] [2024-10-14 20:45:30,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:30,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:30,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:45:30,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1176692629] [2024-10-14 20:45:30,813 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-14 20:45:30,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:30,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:30,815 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:45:30,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-14 20:45:30,927 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-14 20:45:30,927 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:45:30,930 INFO L255 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 47 conjuncts are in the unsatisfiable core [2024-10-14 20:45:30,936 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:45:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 20:45:31,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:45:32,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2607 backedges. 0 proven. 1683 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-10-14 20:45:32,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:45:32,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870786513] [2024-10-14 20:45:32,785 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:45:32,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1176692629] [2024-10-14 20:45:32,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1176692629] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:45:32,785 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:45:32,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24] total 47 [2024-10-14 20:45:32,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301820892] [2024-10-14 20:45:32,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:45:32,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2024-10-14 20:45:32,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:45:32,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2024-10-14 20:45:32,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=622, Invalid=1634, Unknown=0, NotChecked=0, Total=2256 [2024-10-14 20:45:32,790 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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) [2024-10-14 20:45:35,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:45:35,893 INFO L93 Difference]: Finished difference Result 334 states and 402 transitions. [2024-10-14 20:45:35,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2024-10-14 20:45:35,893 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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 248 [2024-10-14 20:45:35,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:45:35,896 INFO L225 Difference]: With dead ends: 334 [2024-10-14 20:45:35,896 INFO L226 Difference]: Without dead ends: 333 [2024-10-14 20:45:35,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 516 GetRequests, 448 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1678, Invalid=3152, Unknown=0, NotChecked=0, Total=4830 [2024-10-14 20:45:35,899 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 72 mSDsluCounter, 1678 mSDsCounter, 0 mSdLazyCounter, 2804 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1776 SdHoareTripleChecker+Invalid, 2828 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 20:45:35,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1776 Invalid, 2828 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2804 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 20:45:35,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2024-10-14 20:45:35,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 333. [2024-10-14 20:45:35,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 333 states, 285 states have (on average 1.0035087719298246) internal successors, (286), 285 states have internal predecessors, (286), 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) [2024-10-14 20:45:35,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 378 transitions. [2024-10-14 20:45:35,927 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 378 transitions. Word has length 248 [2024-10-14 20:45:35,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:45:35,928 INFO L471 AbstractCegarLoop]: Abstraction has 333 states and 378 transitions. [2024-10-14 20:45:35,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 47 states have (on average 5.8936170212765955) internal successors, (277), 48 states have internal predecessors, (277), 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) [2024-10-14 20:45:35,929 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 378 transitions. [2024-10-14 20:45:35,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2024-10-14 20:45:35,938 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:35,938 INFO L215 NwaCegarLoop]: trace histogram [47, 47, 46, 46, 46, 46, 46, 46, 46, 46, 46, 1, 1, 1, 1] [2024-10-14 20:45:35,954 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-14 20:45:36,142 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 [2024-10-14 20:45:36,143 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)] === [2024-10-14 20:45:36,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:36,143 INFO L85 PathProgramCache]: Analyzing trace with hash -538931788, now seen corresponding path program 5 times [2024-10-14 20:45:36,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:36,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148807881] [2024-10-14 20:45:36,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:36,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:36,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:45:36,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1007352408] [2024-10-14 20:45:36,333 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-14 20:45:36,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:36,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:36,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:45:36,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-14 20:45:36,562 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2024-10-14 20:45:36,562 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:45:36,565 INFO L255 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 95 conjuncts are in the unsatisfiable core [2024-10-14 20:45:36,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:45:37,676 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-14 20:45:37,676 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:45:41,244 INFO L134 CoverageAnalysis]: Checked inductivity of 11523 backedges. 0 proven. 7383 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2024-10-14 20:45:41,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:45:41,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148807881] [2024-10-14 20:45:41,244 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:45:41,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007352408] [2024-10-14 20:45:41,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007352408] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:45:41,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:45:41,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48] total 95 [2024-10-14 20:45:41,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945686818] [2024-10-14 20:45:41,246 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:45:41,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-10-14 20:45:41,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:45:41,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-10-14 20:45:41,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2398, Invalid=6722, Unknown=0, NotChecked=0, Total=9120 [2024-10-14 20:45:41,280 INFO L87 Difference]: Start difference. First operand 333 states and 378 transitions. Second operand has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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) [2024-10-14 20:45:54,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:45:54,579 INFO L93 Difference]: Finished difference Result 670 states and 810 transitions. [2024-10-14 20:45:54,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-10-14 20:45:54,580 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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 512 [2024-10-14 20:45:54,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:45:54,584 INFO L225 Difference]: With dead ends: 670 [2024-10-14 20:45:54,584 INFO L226 Difference]: Without dead ends: 669 [2024-10-14 20:45:54,589 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1068 GetRequests, 928 SyntacticMatches, 0 SemanticMatches, 140 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1035 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=6814, Invalid=13208, Unknown=0, NotChecked=0, Total=20022 [2024-10-14 20:45:54,590 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 144 mSDsluCounter, 6865 mSDsCounter, 0 mSdLazyCounter, 11374 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 7059 SdHoareTripleChecker+Invalid, 11422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 11374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-10-14 20:45:54,590 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 7059 Invalid, 11422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 11374 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-10-14 20:45:54,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-10-14 20:45:54,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 669. [2024-10-14 20:45:54,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 669 states, 573 states have (on average 1.0017452006980803) internal successors, (574), 573 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) [2024-10-14 20:45:54,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 669 states to 669 states and 762 transitions. [2024-10-14 20:45:54,632 INFO L78 Accepts]: Start accepts. Automaton has 669 states and 762 transitions. Word has length 512 [2024-10-14 20:45:54,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:45:54,633 INFO L471 AbstractCegarLoop]: Abstraction has 669 states and 762 transitions. [2024-10-14 20:45:54,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 95 states have (on average 5.947368421052632) internal successors, (565), 96 states have internal predecessors, (565), 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) [2024-10-14 20:45:54,634 INFO L276 IsEmpty]: Start isEmpty. Operand 669 states and 762 transitions. [2024-10-14 20:45:54,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1041 [2024-10-14 20:45:54,666 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:45:54,667 INFO L215 NwaCegarLoop]: trace histogram [95, 95, 94, 94, 94, 94, 94, 94, 94, 94, 94, 1, 1, 1, 1] [2024-10-14 20:45:54,685 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-14 20:45:54,867 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 [2024-10-14 20:45:54,868 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)] === [2024-10-14 20:45:54,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:45:54,868 INFO L85 PathProgramCache]: Analyzing trace with hash 2016124340, now seen corresponding path program 6 times [2024-10-14 20:45:54,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:45:54,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709383764] [2024-10-14 20:45:54,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:45:54,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:45:55,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:45:55,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1652010642] [2024-10-14 20:45:55,171 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-14 20:45:55,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:45:55,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:45:55,175 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:45:55,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-14 20:45:56,099 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 95 check-sat command(s) [2024-10-14 20:45:56,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-14 20:45:56,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 98 conjuncts are in the unsatisfiable core [2024-10-14 20:45:56,121 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:45:59,845 INFO L134 CoverageAnalysis]: Checked inductivity of 48363 backedges. 0 proven. 30879 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-10-14 20:45:59,845 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:46:00,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:00,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709383764] [2024-10-14 20:46:00,309 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:46:00,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652010642] [2024-10-14 20:46:00,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652010642] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 20:46:00,309 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-14 20:46:00,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97] total 97 [2024-10-14 20:46:00,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979739877] [2024-10-14 20:46:00,309 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-14 20:46:00,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2024-10-14 20:46:00,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:00,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2024-10-14 20:46:00,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4771, Invalid=5531, Unknown=0, NotChecked=0, Total=10302 [2024-10-14 20:46:00,317 INFO L87 Difference]: Start difference. First operand 669 states and 762 transitions. Second operand has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 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) [2024-10-14 20:46:06,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 20:46:06,034 INFO L93 Difference]: Finished difference Result 681 states and 776 transitions. [2024-10-14 20:46:06,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2024-10-14 20:46:06,035 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 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 1040 [2024-10-14 20:46:06,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 20:46:06,040 INFO L225 Difference]: With dead ends: 681 [2024-10-14 20:46:06,040 INFO L226 Difference]: Without dead ends: 680 [2024-10-14 20:46:06,047 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1151 GetRequests, 957 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4751 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=14359, Invalid=23861, Unknown=0, NotChecked=0, Total=38220 [2024-10-14 20:46:06,048 INFO L432 NwaCegarLoop]: 10 mSDtfsCounter, 473 mSDsluCounter, 228 mSDsCounter, 0 mSdLazyCounter, 498 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 687 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 498 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 20:46:06,048 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 238 Invalid, 687 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 498 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 20:46:06,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2024-10-14 20:46:06,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 676. [2024-10-14 20:46:06,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 676 states, 579 states have (on average 1.001727115716753) internal successors, (580), 579 states have internal predecessors, (580), 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) [2024-10-14 20:46:06,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 676 states to 676 states and 770 transitions. [2024-10-14 20:46:06,099 INFO L78 Accepts]: Start accepts. Automaton has 676 states and 770 transitions. Word has length 1040 [2024-10-14 20:46:06,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 20:46:06,100 INFO L471 AbstractCegarLoop]: Abstraction has 676 states and 770 transitions. [2024-10-14 20:46:06,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 97 states have (on average 5.907216494845361) internal successors, (573), 98 states have internal predecessors, (573), 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) [2024-10-14 20:46:06,101 INFO L276 IsEmpty]: Start isEmpty. Operand 676 states and 770 transitions. [2024-10-14 20:46:06,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1052 [2024-10-14 20:46:06,110 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 20:46:06,110 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 95, 95, 95, 95, 95, 95, 95, 95, 95, 1, 1, 1, 1] [2024-10-14 20:46:06,128 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-14 20:46:06,311 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 [2024-10-14 20:46:06,311 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)] === [2024-10-14 20:46:06,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 20:46:06,312 INFO L85 PathProgramCache]: Analyzing trace with hash -148452668, now seen corresponding path program 7 times [2024-10-14 20:46:06,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 20:46:06,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986600055] [2024-10-14 20:46:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 20:46:06,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 20:46:06,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 20:46:06,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1183543615] [2024-10-14 20:46:06,549 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-14 20:46:06,549 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 20:46:06,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 20:46:06,550 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 20:46:06,552 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-14 20:46:06,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 20:46:06,849 INFO L255 TraceCheckSpWp]: Trace formula consists of 1644 conjuncts, 193 conjuncts are in the unsatisfiable core [2024-10-14 20:46:06,865 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 20:46:10,577 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-10-14 20:46:10,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 20:46:23,851 INFO L134 CoverageAnalysis]: Checked inductivity of 49400 backedges. 0 proven. 31540 refuted. 0 times theorem prover too weak. 17860 trivial. 0 not checked. [2024-10-14 20:46:23,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 20:46:23,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986600055] [2024-10-14 20:46:23,852 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-14 20:46:23,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1183543615] [2024-10-14 20:46:23,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1183543615] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 20:46:23,852 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-14 20:46:23,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 97] total 193 [2024-10-14 20:46:23,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375505906] [2024-10-14 20:46:23,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-14 20:46:23,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 194 states [2024-10-14 20:46:23,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 20:46:23,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 194 interpolants. [2024-10-14 20:46:23,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9601, Invalid=27841, Unknown=0, NotChecked=0, Total=37442 [2024-10-14 20:46:23,868 INFO L87 Difference]: Start difference. First operand 676 states and 770 transitions. Second operand has 194 states, 193 states have (on average 5.974093264248705) internal successors, (1153), 194 states have internal predecessors, (1153), 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)