./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 20ed64ec 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-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.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 e153b2922c94b2bcf8f70f9e86faabd543aefaed .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 10:42:07,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 10:42:07,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 10:42:07,437 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 10:42:07,437 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 10:42:07,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 10:42:07,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 10:42:07,441 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 10:42:07,443 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 10:42:07,444 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 10:42:07,445 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 10:42:07,446 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 10:42:07,446 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 10:42:07,447 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 10:42:07,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 10:42:07,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 10:42:07,450 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 10:42:07,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 10:42:07,453 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 10:42:07,454 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 10:42:07,456 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 10:42:07,462 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 10:42:07,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 10:42:07,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 10:42:07,468 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 10:42:07,472 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 10:42:07,473 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 10:42:07,474 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 10:42:07,475 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 10:42:07,476 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 10:42:07,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 10:42:07,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 10:42:07,478 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 10:42:07,481 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 10:42:07,482 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 10:42:07,483 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 10:42:07,483 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 10:42:07,484 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 10:42:07,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 10:42:07,485 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 10:42:07,488 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 10:42:07,488 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-27 10:42:07,523 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 10:42:07,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 10:42:07,524 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 10:42:07,524 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 10:42:07,526 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 10:42:07,526 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 10:42:07,527 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 10:42:07,527 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 10:42:07,527 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 10:42:07,527 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 10:42:07,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 10:42:07,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-27 10:42:07,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 10:42:07,529 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-27 10:42:07,529 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-27 10:42:07,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 10:42:07,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 10:42:07,530 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-27 10:42:07,530 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 10:42:07,530 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 10:42:07,531 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 10:42:07,531 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 10:42:07,531 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 10:42:07,531 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 10:42:07,531 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-27 10:42:07,532 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 10:42:07,532 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 10:42:07,532 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-27 10:42:07,532 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 10:42:07,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e153b2922c94b2bcf8f70f9e86faabd543aefaed [2021-08-27 10:42:07,806 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 10:42:07,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 10:42:07,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 10:42:07,839 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 10:42:07,840 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 10:42:07,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2021-08-27 10:42:07,909 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703762512/c4a70e3333554d32894f157bacd73fae/FLAG1c8cc2d93 [2021-08-27 10:42:08,352 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 10:42:08,354 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-easy1.c [2021-08-27 10:42:08,360 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703762512/c4a70e3333554d32894f157bacd73fae/FLAG1c8cc2d93 [2021-08-27 10:42:08,385 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/703762512/c4a70e3333554d32894f157bacd73fae [2021-08-27 10:42:08,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 10:42:08,393 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 10:42:08,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 10:42:08,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 10:42:08,400 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 10:42:08,401 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c77b83e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08, skipping insertion in model container [2021-08-27 10:42:08,402 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 10:42:08,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 10:42:08,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 10:42:08,525 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 10:42:08,536 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 10:42:08,546 INFO L208 MainTranslator]: Completed translation [2021-08-27 10:42:08,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08 WrapperNode [2021-08-27 10:42:08,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 10:42:08,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 10:42:08,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 10:42:08,549 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 10:42:08,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,558 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,573 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 10:42:08,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 10:42:08,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 10:42:08,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 10:42:08,580 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,581 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,581 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,583 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,586 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,587 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 10:42:08,588 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 10:42:08,588 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 10:42:08,588 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 10:42:08,604 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (1/1) ... [2021-08-27 10:42:08,629 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 10:42:08,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 10:42:08,646 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) [2021-08-27 10:42:08,650 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 [2021-08-27 10:42:08,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 10:42:08,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 10:42:08,836 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 10:42:08,836 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-27 10:42:08,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:42:08 BoogieIcfgContainer [2021-08-27 10:42:08,839 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 10:42:08,840 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 10:42:08,840 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 10:42:08,843 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 10:42:08,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 10:42:08" (1/3) ... [2021-08-27 10:42:08,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc2f20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:42:08, skipping insertion in model container [2021-08-27 10:42:08,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 10:42:08" (2/3) ... [2021-08-27 10:42:08,845 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4dc2f20a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 10:42:08, skipping insertion in model container [2021-08-27 10:42:08,845 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:42:08" (3/3) ... [2021-08-27 10:42:08,846 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-easy1.c [2021-08-27 10:42:08,851 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 10:42:08,851 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-27 10:42:08,898 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 10:42:08,912 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 [2021-08-27 10:42:08,912 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-27 10:42:08,929 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) [2021-08-27 10:42:08,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-27 10:42:08,934 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:42:08,934 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-27 10:42:08,935 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 10:42:08,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:42:08,940 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2021-08-27 10:42:08,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:42:08,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225687276] [2021-08-27 10:42:08,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:42:08,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:42:09,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:42:09,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:42:09,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:42:09,094 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225687276] [2021-08-27 10:42:09,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225687276] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:42:09,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:42:09,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:42:09,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494890556] [2021-08-27 10:42:09,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:42:09,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:42:09,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:42:09,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:42:09,115 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 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-08-27 10:42:09,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:42:09,209 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2021-08-27 10:42:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:42:09,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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 [2021-08-27 10:42:09,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:42:09,218 INFO L225 Difference]: With dead ends: 27 [2021-08-27 10:42:09,231 INFO L226 Difference]: Without dead ends: 17 [2021-08-27 10:42:09,233 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:42:09,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-08-27 10:42:09,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2021-08-27 10:42:09,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.5454545454545454) 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) [2021-08-27 10:42:09,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-08-27 10:42:09,279 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 4 [2021-08-27 10:42:09,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:42:09,280 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-08-27 10:42:09,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 2 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) [2021-08-27 10:42:09,280 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-08-27 10:42:09,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-27 10:42:09,280 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:42:09,281 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-27 10:42:09,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-27 10:42:09,281 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 10:42:09,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:42:09,282 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2021-08-27 10:42:09,282 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:42:09,282 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796475761] [2021-08-27 10:42:09,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:42:09,283 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:42:09,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:42:09,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 10:42:09,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:42:09,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796475761] [2021-08-27 10:42:09,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796475761] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:42:09,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:42:09,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-27 10:42:09,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270019205] [2021-08-27 10:42:09,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:42:09,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:42:09,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:42:09,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:42:09,330 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 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) [2021-08-27 10:42:09,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:42:09,367 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2021-08-27 10:42:09,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:42:09,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 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 [2021-08-27 10:42:09,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:42:09,369 INFO L225 Difference]: With dead ends: 15 [2021-08-27 10:42:09,369 INFO L226 Difference]: Without dead ends: 13 [2021-08-27 10:42:09,370 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:42:09,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-08-27 10:42:09,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-08-27 10:42:09,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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) [2021-08-27 10:42:09,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-08-27 10:42:09,377 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 5 [2021-08-27 10:42:09,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:42:09,377 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-08-27 10:42:09,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 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) [2021-08-27 10:42:09,379 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-08-27 10:42:09,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-27 10:42:09,379 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 10:42:09,380 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2021-08-27 10:42:09,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-27 10:42:09,381 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-27 10:42:09,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 10:42:09,389 INFO L82 PathProgramCache]: Analyzing trace with hash 784501312, now seen corresponding path program 1 times [2021-08-27 10:42:09,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 10:42:09,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [833737463] [2021-08-27 10:42:09,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 10:42:09,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 10:42:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 10:42:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-08-27 10:42:09,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 10:42:09,441 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [833737463] [2021-08-27 10:42:09,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [833737463] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 10:42:09,442 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 10:42:09,443 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-27 10:42:09,443 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002692217] [2021-08-27 10:42:09,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 10:42:09,444 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 10:42:09,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 10:42:09,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:42:09,451 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-08-27 10:42:09,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 10:42:09,474 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2021-08-27 10:42:09,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 10:42:09,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2021-08-27 10:42:09,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 10:42:09,476 INFO L225 Difference]: With dead ends: 13 [2021-08-27 10:42:09,477 INFO L226 Difference]: Without dead ends: 0 [2021-08-27 10:42:09,482 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 10:42:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-27 10:42:09,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-27 10:42:09,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-08-27 10:42:09,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-27 10:42:09,483 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-08-27 10:42:09,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 10:42:09,484 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-27 10:42:09,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2021-08-27 10:42:09,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-27 10:42:09,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-27 10:42:09,487 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:42:09,488 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:42:09,488 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:42:09,488 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW [2021-08-27 10:42:09,489 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-27 10:42:09,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-27 10:42:09,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 10:42:09,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-27 10:42:09,522 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-08-27 10:42:09,522 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-27 10:42:09,522 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-08-27 10:42:09,522 INFO L857 garLoopResultBuilder]: For program point L17(line 17) no Hoare annotation was computed. [2021-08-27 10:42:09,523 INFO L857 garLoopResultBuilder]: For program point L17-1(line 17) no Hoare annotation was computed. [2021-08-27 10:42:09,523 INFO L857 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2021-08-27 10:42:09,523 INFO L857 garLoopResultBuilder]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-08-27 10:42:09,523 INFO L857 garLoopResultBuilder]: For program point L13-2(lines 13 19) no Hoare annotation was computed. [2021-08-27 10:42:09,523 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 15) no Hoare annotation was computed. [2021-08-27 10:42:09,524 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 17) no Hoare annotation was computed. [2021-08-27 10:42:09,524 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-27 10:42:09,524 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-27 10:42:09,524 INFO L860 garLoopResultBuilder]: At program point L20(lines 11 21) the Hoare annotation is: true [2021-08-27 10:42:09,525 INFO L857 garLoopResultBuilder]: For program point L14(lines 14 18) no Hoare annotation was computed. [2021-08-27 10:42:09,528 INFO L853 garLoopResultBuilder]: At program point L14-2(lines 13 19) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~x~0) [2021-08-27 10:42:09,532 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 10:42:09,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 10:42:09 BoogieIcfgContainer [2021-08-27 10:42:09,545 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 10:42:09,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 10:42:09,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 10:42:09,546 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 10:42:09,546 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 10:42:08" (3/4) ... [2021-08-27 10:42:09,549 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-27 10:42:09,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-27 10:42:09,559 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-27 10:42:09,593 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 10:42:09,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 10:42:09,595 INFO L168 Benchmark]: Toolchain (without parser) took 1201.27 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 24.1 MB in the beginning and 26.9 MB in the end (delta: -2.8 MB). Peak memory consumption was 7.5 MB. Max. memory is 16.1 GB. [2021-08-27 10:42:09,595 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 10:42:09,596 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.49 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 37.1 MB in the end (delta: -13.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-08-27 10:42:09,600 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.83 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 35.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 10:42:09,600 INFO L168 Benchmark]: Boogie Preprocessor took 12.17 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 34.9 MB in the end (delta: 827.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 10:42:09,600 INFO L168 Benchmark]: RCFGBuilder took 251.11 ms. Allocated memory is still 58.7 MB. Free memory was 34.9 MB in the beginning and 34.2 MB in the end (delta: 748.8 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 10:42:09,601 INFO L168 Benchmark]: TraceAbstraction took 704.63 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 29.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. [2021-08-27 10:42:09,601 INFO L168 Benchmark]: Witness Printer took 47.35 ms. Allocated memory is still 58.7 MB. Free memory was 29.3 MB in the beginning and 26.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 10:42:09,602 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 48.2 MB. Free memory was 30.6 MB in the beginning and 30.6 MB in the end (delta: 51.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 150.49 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 23.9 MB in the beginning and 37.1 MB in the end (delta: -13.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 25.83 ms. Allocated memory is still 58.7 MB. Free memory was 37.1 MB in the beginning and 35.9 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 12.17 ms. Allocated memory is still 58.7 MB. Free memory was 35.8 MB in the beginning and 34.9 MB in the end (delta: 827.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 251.11 ms. Allocated memory is still 58.7 MB. Free memory was 34.9 MB in the beginning and 34.2 MB in the end (delta: 748.8 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 704.63 ms. Allocated memory is still 58.7 MB. Free memory was 33.6 MB in the beginning and 29.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 5.6 MB. Max. memory is 16.1 GB. * Witness Printer took 47.35 ms. Allocated memory is still 58.7 MB. Free memory was 29.3 MB in the beginning and 26.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 17]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 15 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 635.7ms, OverallIterations: 3, TraceHistogramMax: 2, EmptinessCheckTime: 10.3ms, AutomataDifference: 209.4ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 31.6ms, InitialAbstractionConstructionTime: 11.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 12 SDslu, 5 SDs, 0 SdLazy, 29 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 75.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 41.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 2 FomulaSimplifications, 11 FormulaSimplificationTreeSizeReduction, 22.3ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.8ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 4.9ms SsaConstructionTime, 31.5ms SatisfiabilityAnalysisTime, 134.3ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 <= x RESULT: Ultimate proved your program to be correct! [2021-08-27 10:42:09,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...