./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --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 64bit --witnessprinter.graph.data.programhash 46206f7a86b26e5772618ef155399955c07418b5 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:07:26,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:07:26,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:07:26,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:07:26,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:07:26,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:07:26,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:07:26,264 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:07:26,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:07:26,271 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:07:26,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:07:26,275 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:07:26,276 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:07:26,278 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:07:26,280 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:07:26,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:07:26,284 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:07:26,285 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:07:26,287 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:07:26,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:07:26,293 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:07:26,294 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:07:26,296 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:07:26,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:07:26,303 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:07:26,304 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:07:26,304 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:07:26,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:07:26,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:07:26,307 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:07:26,308 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:07:26,308 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:07:26,310 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:07:26,311 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:07:26,312 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:07:26,312 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:07:26,313 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:07:26,313 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:07:26,313 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:07:26,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:07:26,315 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:07:26,316 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-30 22:07:26,354 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:07:26,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:07:26,355 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:07:26,355 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:07:26,357 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:07:26,357 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:07:26,357 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:07:26,358 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:07:26,358 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:07:26,358 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:07:26,359 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:07:26,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:07:26,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:07:26,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:07:26,359 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:07:26,359 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:07:26,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:07:26,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:07:26,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:07:26,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:07:26,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:07:26,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:07:26,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:07:26,367 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:07:26,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:07:26,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:07:26,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:07:26,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:07:26,367 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:07:26,368 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 46206f7a86b26e5772618ef155399955c07418b5 [2021-08-30 22:07:26,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:07:26,699 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:07:26,703 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:07:26,704 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:07:26,704 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:07:26,706 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c [2021-08-30 22:07:26,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ba0bc71/851ac2f41cc44f1a9d508924c41b2951/FLAGd996216c1 [2021-08-30 22:07:27,202 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:07:27,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Toulouse-BranchesToLoop-1.c [2021-08-30 22:07:27,208 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ba0bc71/851ac2f41cc44f1a9d508924c41b2951/FLAGd996216c1 [2021-08-30 22:07:27,226 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29ba0bc71/851ac2f41cc44f1a9d508924c41b2951 [2021-08-30 22:07:27,229 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:07:27,231 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:07:27,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:07:27,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:07:27,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:07:27,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c3af73b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27, skipping insertion in model container [2021-08-30 22:07:27,239 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:07:27,256 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:07:27,368 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:07:27,371 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:07:27,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:07:27,392 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:07:27,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27 WrapperNode [2021-08-30 22:07:27,393 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:07:27,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:07:27,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:07:27,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:07:27,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:07:27,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:07:27,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:07:27,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:07:27,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,459 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:07:27,469 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:07:27,469 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:07:27,469 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:07:27,470 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (1/1) ... [2021-08-30 22:07:27,476 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:07:27,484 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:07:27,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 22:07:27,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 22:07:27,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:07:27,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:07:27,655 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:07:27,655 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-30 22:07:27,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:27 BoogieIcfgContainer [2021-08-30 22:07:27,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:07:27,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:07:27,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:07:27,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:07:27,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:07:27" (1/3) ... [2021-08-30 22:07:27,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa411fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:07:27, skipping insertion in model container [2021-08-30 22:07:27,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:27" (2/3) ... [2021-08-30 22:07:27,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa411fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:07:27, skipping insertion in model container [2021-08-30 22:07:27,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:27" (3/3) ... [2021-08-30 22:07:27,665 INFO L111 eAbstractionObserver]: Analyzing ICFG Toulouse-BranchesToLoop-1.c [2021-08-30 22:07:27,670 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:07:27,670 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-30 22:07:27,717 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:07:27,726 INFO L339 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, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 22:07:27,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-30 22:07:27,744 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 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) [2021-08-30 22:07:27,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:07:27,749 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:27,750 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:07:27,750 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:07:27,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:27,756 INFO L82 PathProgramCache]: Analyzing trace with hash 957637, now seen corresponding path program 1 times [2021-08-30 22:07:27,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:27,765 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818673241] [2021-08-30 22:07:27,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:27,766 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:27,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:27,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:27,951 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:07:27,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818673241] [2021-08-30 22:07:27,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818673241] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:07:27,953 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:07:27,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-30 22:07:27,955 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240330563] [2021-08-30 22:07:27,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:07:27,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:07:28,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:07:28,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:07:28,008 INFO L87 Difference]: Start difference. First operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 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) Second operand has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-08-30 22:07:28,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:07:28,097 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-08-30 22:07:28,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:07:28,100 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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 4 [2021-08-30 22:07:28,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:07:28,105 INFO L225 Difference]: With dead ends: 19 [2021-08-30 22:07:28,106 INFO L226 Difference]: Without dead ends: 10 [2021-08-30 22:07:28,108 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 30.29ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:07:28,110 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 13 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 60.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 67.02ms IncrementalHoareTripleChecker+Time [2021-08-30 22:07:28,111 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 0 Invalid, 30 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 67.02ms Time] [2021-08-30 22:07:28,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-08-30 22:07:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-08-30 22:07:28,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 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) [2021-08-30 22:07:28,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-08-30 22:07:28,134 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2021-08-30 22:07:28,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:07:28,134 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-08-30 22:07:28,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 4 states have internal predecessors, (4), 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) [2021-08-30 22:07:28,135 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-08-30 22:07:28,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:07:28,135 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:28,136 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:07:28,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:07:28,136 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:07:28,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:28,137 INFO L82 PathProgramCache]: Analyzing trace with hash 29686796, now seen corresponding path program 1 times [2021-08-30 22:07:28,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:28,137 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268810100] [2021-08-30 22:07:28,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:28,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:28,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:28,182 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:07:28,182 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268810100] [2021-08-30 22:07:28,182 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268810100] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:07:28,183 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:07:28,183 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:07:28,183 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779071123] [2021-08-30 22:07:28,184 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-30 22:07:28,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:07:28,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-30 22:07:28,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-30 22:07:28,190 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-08-30 22:07:28,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:07:28,240 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2021-08-30 22:07:28,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-30 22:07:28,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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 [2021-08-30 22:07:28,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:07:28,242 INFO L225 Difference]: With dead ends: 14 [2021-08-30 22:07:28,242 INFO L226 Difference]: Without dead ends: 13 [2021-08-30 22:07:28,243 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.72ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-30 22:07:28,244 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.46ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 40.72ms IncrementalHoareTripleChecker+Time [2021-08-30 22:07:28,244 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 23 Unknown, 0 Unchecked, 0.46ms Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 40.72ms Time] [2021-08-30 22:07:28,245 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-08-30 22:07:28,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-08-30 22:07:28,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-08-30 22:07:28,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2021-08-30 22:07:28,248 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 5 [2021-08-30 22:07:28,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:07:28,248 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2021-08-30 22:07:28,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 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) [2021-08-30 22:07:28,249 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2021-08-30 22:07:28,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:07:28,249 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:28,249 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:07:28,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:07:28,250 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:07:28,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:28,251 INFO L82 PathProgramCache]: Analyzing trace with hash 29746378, now seen corresponding path program 1 times [2021-08-30 22:07:28,251 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:28,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791722712] [2021-08-30 22:07:28,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:28,252 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:28,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:07:28,263 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-30 22:07:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-30 22:07:28,281 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-30 22:07:28,281 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-08-30 22:07:28,282 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-08-30 22:07:28,284 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-08-30 22:07:28,284 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-08-30 22:07:28,284 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-08-30 22:07:28,286 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:07:28,291 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:07:28,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:07:28 BoogieIcfgContainer [2021-08-30 22:07:28,306 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:07:28,307 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:07:28,307 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:07:28,307 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:07:28,308 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:27" (3/4) ... [2021-08-30 22:07:28,309 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-08-30 22:07:28,333 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:07:28,334 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:07:28,334 INFO L158 Benchmark]: Toolchain (without parser) took 1103.59ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 28.0MB in the end (delta: 15.5MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-08-30 22:07:28,335 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 44.6MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:07:28,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 159.37ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 34.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:07:28,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.97ms. Allocated memory is still 62.9MB. Free memory was 34.4MB in the beginning and 33.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:07:28,336 INFO L158 Benchmark]: Boogie Preprocessor took 45.29ms. Allocated memory is still 62.9MB. Free memory was 33.0MB in the beginning and 46.5MB in the end (delta: -13.4MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. [2021-08-30 22:07:28,336 INFO L158 Benchmark]: RCFGBuilder took 188.97ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 38.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 22:07:28,337 INFO L158 Benchmark]: TraceAbstraction took 646.63ms. Allocated memory is still 62.9MB. Free memory was 38.4MB in the beginning and 29.8MB in the end (delta: 8.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-08-30 22:07:28,337 INFO L158 Benchmark]: Witness Printer took 27.08ms. Allocated memory is still 62.9MB. Free memory was 29.5MB in the beginning and 28.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:07:28,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 44.6MB in the end (delta: 44.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 159.37ms. Allocated memory is still 62.9MB. Free memory was 43.3MB in the beginning and 34.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.97ms. Allocated memory is still 62.9MB. Free memory was 34.4MB in the beginning and 33.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.29ms. Allocated memory is still 62.9MB. Free memory was 33.0MB in the beginning and 46.5MB in the end (delta: -13.4MB). Peak memory consumption was 2.9MB. Max. memory is 16.1GB. * RCFGBuilder took 188.97ms. Allocated memory is still 62.9MB. Free memory was 46.5MB in the beginning and 38.9MB in the end (delta: 7.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 646.63ms. Allocated memory is still 62.9MB. Free memory was 38.4MB in the beginning and 29.8MB in the end (delta: 8.6MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Witness Printer took 27.08ms. Allocated memory is still 62.9MB. Free memory was 29.5MB in the beginning and 28.0MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 25]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int x; [L15] int y; [L16] int z; [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] COND FALSE !(__VERIFIER_nondet_int() != 0) [L22] x = -1 [L24] COND TRUE y<100 && z<100 [L25] y+x - UnprovableResult [Line: 25]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 26]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 574.12ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 13.20ms, AutomataDifference: 197.94ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 10.63ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 107.74ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 91.44ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 49 IncrementalHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 49 mSolverCounterSat, 1.22ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.01ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 13.65ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.47ms SsaConstructionTime, 30.50ms SatisfiabilityAnalysisTime, 140.86ms InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-08-30 22:07:28,378 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...