./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-numeric/Avg_true.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8d31f386 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-numeric/Avg_true.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 1a117db397319419a0ed364ecaa141ed414cdab4 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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.multireach-323-8d31f38 [2021-07-06 15:15:01,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-06 15:15:01,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-06 15:15:01,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-06 15:15:01,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-06 15:15:01,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-06 15:15:01,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-06 15:15:01,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-06 15:15:01,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-06 15:15:01,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-06 15:15:01,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-06 15:15:01,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-06 15:15:01,508 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-06 15:15:01,509 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-06 15:15:01,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-06 15:15:01,510 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-06 15:15:01,511 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-06 15:15:01,512 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-06 15:15:01,513 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-06 15:15:01,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-06 15:15:01,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-06 15:15:01,517 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-06 15:15:01,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-06 15:15:01,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-06 15:15:01,521 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-06 15:15:01,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-06 15:15:01,521 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-06 15:15:01,522 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-06 15:15:01,522 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-06 15:15:01,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-06 15:15:01,523 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-06 15:15:01,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-06 15:15:01,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-06 15:15:01,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-06 15:15:01,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-06 15:15:01,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-06 15:15:01,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-06 15:15:01,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-06 15:15:01,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-06 15:15:01,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-06 15:15:01,529 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-06 15:15:01,532 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-07-06 15:15:01,558 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-06 15:15:01,558 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-06 15:15:01,559 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-06 15:15:01,559 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-06 15:15:01,559 INFO L138 SettingsManager]: * Use SBE=true [2021-07-06 15:15:01,560 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-06 15:15:01,560 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-07-06 15:15:01,560 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-06 15:15:01,560 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-06 15:15:01,560 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-06 15:15:01,560 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-06 15:15:01,561 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-06 15:15:01,561 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-07-06 15:15:01,561 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-06 15:15:01,561 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-06 15:15:01,561 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-06 15:15:01,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-06 15:15:01,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-06 15:15:01,562 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-06 15:15:01,562 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:15:01,562 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-06 15:15:01,562 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-06 15:15:01,563 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-06 15:15:01,563 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-06 15:15:01,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-06 15:15:01,563 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-06 15:15:01,563 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-07-06 15:15:01,563 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1a117db397319419a0ed364ecaa141ed414cdab4 [2021-07-06 15:15:01,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-06 15:15:01,904 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-06 15:15:01,907 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-06 15:15:01,908 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-06 15:15:01,909 INFO L275 PluginConnector]: CDTParser initialized [2021-07-06 15:15:01,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Avg_true.c [2021-07-06 15:15:01,973 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7cb39cb/c3fc238d813348d6baa72e7a7967a1dc/FLAGc9e950ff0 [2021-07-06 15:15:02,361 INFO L306 CDTParser]: Found 1 translation units. [2021-07-06 15:15:02,361 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Avg_true.c [2021-07-06 15:15:02,366 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7cb39cb/c3fc238d813348d6baa72e7a7967a1dc/FLAGc9e950ff0 [2021-07-06 15:15:02,789 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad7cb39cb/c3fc238d813348d6baa72e7a7967a1dc [2021-07-06 15:15:02,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-06 15:15:02,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-07-06 15:15:02,794 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-06 15:15:02,796 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-06 15:15:02,798 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-06 15:15:02,799 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:02,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d864f24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02, skipping insertion in model container [2021-07-06 15:15:02,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:02,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-06 15:15:02,825 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-06 15:15:02,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:15:02,923 INFO L203 MainTranslator]: Completed pre-run [2021-07-06 15:15:02,936 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-06 15:15:02,945 INFO L208 MainTranslator]: Completed translation [2021-07-06 15:15:02,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02 WrapperNode [2021-07-06 15:15:02,945 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-06 15:15:02,946 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-06 15:15:02,947 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-06 15:15:02,947 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-06 15:15:02,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:02,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:02,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-06 15:15:02,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-06 15:15:02,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-06 15:15:02,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-06 15:15:03,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,013 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,020 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-06 15:15:03,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-06 15:15:03,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-06 15:15:03,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-06 15:15:03,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (1/1) ... [2021-07-06 15:15:03,031 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-06 15:15:03,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-07-06 15:15:03,053 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) [2021-07-06 15:15:03,083 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 [2021-07-06 15:15:03,099 INFO L130 BoogieDeclarations]: Found specification of procedure average [2021-07-06 15:15:03,100 INFO L138 BoogieDeclarations]: Found implementation of procedure average [2021-07-06 15:15:03,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-06 15:15:03,101 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-06 15:15:03,349 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-06 15:15:03,349 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-06 15:15:03,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:15:03 BoogieIcfgContainer [2021-07-06 15:15:03,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-06 15:15:03,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-06 15:15:03,389 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-06 15:15:03,403 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-06 15:15:03,403 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.07 03:15:02" (1/3) ... [2021-07-06 15:15:03,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df614df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:15:03, skipping insertion in model container [2021-07-06 15:15:03,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.07 03:15:02" (2/3) ... [2021-07-06 15:15:03,404 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df614df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.07 03:15:03, skipping insertion in model container [2021-07-06 15:15:03,404 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:15:03" (3/3) ... [2021-07-06 15:15:03,406 INFO L111 eAbstractionObserver]: Analyzing ICFG Avg_true.c [2021-07-06 15:15:03,413 INFO L198 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-06 15:15:03,414 INFO L158 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2021-07-06 15:15:03,451 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:15:03,456 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:15:03,457 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:15:03,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:15:03,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-07-06 15:15:03,475 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:15:03,475 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:15:03,475 INFO L374 AbstractCegarLoop]: === Iteration 1 === [averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:15:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:15:03,481 INFO L82 PathProgramCache]: Analyzing trace with hash -153930396, now seen corresponding path program 1 times [2021-07-06 15:15:03,487 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:15:03,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450458037] [2021-07-06 15:15:03,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:15:03,489 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:15:03,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:15:03,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:03,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:03,607 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:03,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:03,613 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:03,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:03,621 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:03,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:03,630 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:03,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:03,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:15:03,655 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:15:03,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450458037] [2021-07-06 15:15:03,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450458037] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:15:03,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:15:03,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-06 15:15:03,658 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240878229] [2021-07-06 15:15:03,662 INFO L425 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-06 15:15:03,662 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:15:03,671 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-06 15:15:03,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-06 15:15:03,674 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:15:03,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:15:03,871 INFO L93 Difference]: Finished difference Result 80 states and 90 transitions. [2021-07-06 15:15:03,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-06 15:15:03,874 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-07-06 15:15:03,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:15:03,881 INFO L225 Difference]: With dead ends: 80 [2021-07-06 15:15:03,881 INFO L226 Difference]: Without dead ends: 39 [2021-07-06 15:15:03,889 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 86.1ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-07-06 15:15:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-07-06 15:15:03,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 31. [2021-07-06 15:15:03,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 28 states have internal predecessors, (31), 4 states have call successors, (4), 2 states have call predecessors, (4), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:15:03,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2021-07-06 15:15:03,926 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 9 [2021-07-06 15:15:03,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:15:03,927 INFO L442 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2021-07-06 15:15:03,927 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 7 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:15:03,928 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2021-07-06 15:15:03,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-07-06 15:15:03,929 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:15:03,929 INFO L525 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:15:03,929 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-06 15:15:03,930 INFO L374 AbstractCegarLoop]: === Iteration 2 === [averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:15:03,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:15:03,933 INFO L82 PathProgramCache]: Analyzing trace with hash -981364726, now seen corresponding path program 1 times [2021-07-06 15:15:03,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:15:03,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628528751] [2021-07-06 15:15:03,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:15:03,934 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:15:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:15:04,003 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:04,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:15:04,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:04,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:04,010 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:04,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:04,015 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:04,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:04,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:15:04,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:15:04,025 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628528751] [2021-07-06 15:15:04,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628528751] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:15:04,025 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:15:04,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-06 15:15:04,026 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497648668] [2021-07-06 15:15:04,027 INFO L425 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-06 15:15:04,027 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:15:04,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-06 15:15:04,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-06 15:15:04,029 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:15:04,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:15:04,094 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2021-07-06 15:15:04,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-06 15:15:04,095 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-07-06 15:15:04,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:15:04,096 INFO L225 Difference]: With dead ends: 37 [2021-07-06 15:15:04,097 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:15:04,099 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.1ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-06 15:15:04,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:15:04,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:15:04,100 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) [2021-07-06 15:15:04,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:15:04,100 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-07-06 15:15:04,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:15:04,101 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:15:04,101 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:15:04,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:15:04,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:15:04,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:15:04,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,115 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,119 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,128 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,129 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,145 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,159 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,161 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,162 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,164 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,166 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,242 INFO L762 garLoopResultBuilder]: For program point averageErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,242 INFO L762 garLoopResultBuilder]: For program point averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,242 INFO L762 garLoopResultBuilder]: For program point averageErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,243 INFO L762 garLoopResultBuilder]: For program point averageErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,243 INFO L762 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,243 INFO L762 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,243 INFO L762 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,243 INFO L762 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,244 INFO L762 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,244 INFO L762 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,244 INFO L762 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,244 INFO L758 garLoopResultBuilder]: At program point L46-4(line 46) the Hoare annotation is: (or (not (<= |average_#in~x| 2147483647)) (<= average_~x 0)) [2021-07-06 15:15:04,244 INFO L762 garLoopResultBuilder]: For program point L44-3(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,245 INFO L762 garLoopResultBuilder]: For program point L46-5(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,245 INFO L758 garLoopResultBuilder]: At program point L44-4(line 44) the Hoare annotation is: (and (or (not (<= |average_#in~x| 1)) (<= average_~x 1)) (or (<= average_~x 2147483647) (not (<= |average_#in~x| 2147483647)))) [2021-07-06 15:15:04,245 INFO L762 garLoopResultBuilder]: For program point L46-6(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,245 INFO L762 garLoopResultBuilder]: For program point averageErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,246 INFO L762 garLoopResultBuilder]: For program point L44-5(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,246 INFO L762 garLoopResultBuilder]: For program point L46-7(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,246 INFO L762 garLoopResultBuilder]: For program point averageFINAL(lines 42 50) no Hoare annotation was computed. [2021-07-06 15:15:04,246 INFO L762 garLoopResultBuilder]: For program point averageErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,246 INFO L762 garLoopResultBuilder]: For program point averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,247 INFO L762 garLoopResultBuilder]: For program point averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,247 INFO L762 garLoopResultBuilder]: For program point averageErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,247 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 49) no Hoare annotation was computed. [2021-07-06 15:15:04,247 INFO L762 garLoopResultBuilder]: For program point L43(lines 43 49) no Hoare annotation was computed. [2021-07-06 15:15:04,247 INFO L762 garLoopResultBuilder]: For program point averageErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,248 INFO L765 garLoopResultBuilder]: At program point averageENTRY(lines 42 50) the Hoare annotation is: true [2021-07-06 15:15:04,248 INFO L762 garLoopResultBuilder]: For program point averageEXIT(lines 42 50) no Hoare annotation was computed. [2021-07-06 15:15:04,248 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,248 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:15:04,248 INFO L762 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,249 INFO L762 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,249 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,249 INFO L762 garLoopResultBuilder]: For program point L34(lines 34 37) no Hoare annotation was computed. [2021-07-06 15:15:04,249 INFO L762 garLoopResultBuilder]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2021-07-06 15:15:04,249 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,250 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,250 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:15:04,250 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:15:04,250 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (<= |ULTIMATE.start_random_#res| 2147483647) (<= |ULTIMATE.start_main_#t~ret3| 2147483647) (<= ULTIMATE.start_random_~x~1 2147483647)) [2021-07-06 15:15:04,250 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:15:04,251 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 30) no Hoare annotation was computed. [2021-07-06 15:15:04,251 INFO L758 garLoopResultBuilder]: At program point L37(lines 32 38) the Hoare annotation is: (<= ULTIMATE.start_random_~x~1 2147483647) [2021-07-06 15:15:04,251 INFO L758 garLoopResultBuilder]: At program point L37-1(lines 32 38) the Hoare annotation is: (and (<= |ULTIMATE.start_main_#t~ret3| 2147483647) (<= ULTIMATE.start_random_~x~1 2147483647)) [2021-07-06 15:15:04,251 INFO L762 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,251 INFO L762 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,252 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-06 15:15:04,252 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:15:04,255 INFO L303 ceAbstractionStarter]: Result for error location averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (1/14) [2021-07-06 15:15:04,258 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:15:04,259 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:15:04,259 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:15:04,261 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:15:04,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-07-06 15:15:04,262 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:15:04,262 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:15:04,262 INFO L374 AbstractCegarLoop]: === Iteration 1 === [averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:15:04,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:15:04,263 INFO L82 PathProgramCache]: Analyzing trace with hash -476874943, now seen corresponding path program 1 times [2021-07-06 15:15:04,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:15:04,263 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581949178] [2021-07-06 15:15:04,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:15:04,264 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:15:04,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-06 15:15:04,279 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:04,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-06 15:15:04,280 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-06 15:15:04,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-06 15:15:04,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-06 15:15:04,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-06 15:15:04,284 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581949178] [2021-07-06 15:15:04,284 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581949178] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-06 15:15:04,284 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-06 15:15:04,285 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-07-06 15:15:04,285 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745538649] [2021-07-06 15:15:04,285 INFO L425 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-07-06 15:15:04,285 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-06 15:15:04,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-07-06 15:15:04,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:15:04,286 INFO L87 Difference]: Start difference. First operand has 47 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:15:04,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-06 15:15:04,305 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2021-07-06 15:15:04,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-07-06 15:15:04,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-07-06 15:15:04,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-06 15:15:04,306 INFO L225 Difference]: With dead ends: 49 [2021-07-06 15:15:04,306 INFO L226 Difference]: Without dead ends: 0 [2021-07-06 15:15:04,307 INFO L795 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-07-06 15:15:04,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-06 15:15:04,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-06 15:15:04,308 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) [2021-07-06 15:15:04,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-06 15:15:04,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-07-06 15:15:04,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-06 15:15:04,309 INFO L442 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-06 15:15:04,309 INFO L443 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-06 15:15:04,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-06 15:15:04,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-06 15:15:04,309 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-07-06 15:15:04,310 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,311 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,312 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,313 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,319 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,321 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-07-06 15:15:04,331 INFO L762 garLoopResultBuilder]: For program point averageErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,331 INFO L762 garLoopResultBuilder]: For program point averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,331 INFO L762 garLoopResultBuilder]: For program point averageErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,331 INFO L762 garLoopResultBuilder]: For program point averageErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,332 INFO L762 garLoopResultBuilder]: For program point L46(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,332 INFO L762 garLoopResultBuilder]: For program point L46-1(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,332 INFO L762 garLoopResultBuilder]: For program point L44(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,332 INFO L762 garLoopResultBuilder]: For program point L46-2(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,332 INFO L762 garLoopResultBuilder]: For program point L44-1(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,337 INFO L762 garLoopResultBuilder]: For program point L46-3(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,337 INFO L762 garLoopResultBuilder]: For program point L44-2(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,337 INFO L758 garLoopResultBuilder]: At program point L46-4(line 46) the Hoare annotation is: (or (not (<= |average_#in~x| 2147483647)) (<= average_~x 0)) [2021-07-06 15:15:04,338 INFO L762 garLoopResultBuilder]: For program point L44-3(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,338 INFO L762 garLoopResultBuilder]: For program point L46-5(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,338 INFO L758 garLoopResultBuilder]: At program point L44-4(line 44) the Hoare annotation is: (and (or (not (<= |average_#in~x| 1)) (<= average_~x 1)) (<= 1 average_~x) (or (<= average_~x 2147483647) (not (<= |average_#in~x| 2147483647)))) [2021-07-06 15:15:04,338 INFO L762 garLoopResultBuilder]: For program point L46-6(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,338 INFO L762 garLoopResultBuilder]: For program point averageErr8ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,338 INFO L762 garLoopResultBuilder]: For program point L44-5(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,340 INFO L762 garLoopResultBuilder]: For program point L46-7(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,340 INFO L762 garLoopResultBuilder]: For program point averageFINAL(lines 42 50) no Hoare annotation was computed. [2021-07-06 15:15:04,340 INFO L762 garLoopResultBuilder]: For program point averageErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,341 INFO L762 garLoopResultBuilder]: For program point averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,342 INFO L762 garLoopResultBuilder]: For program point averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 44) no Hoare annotation was computed. [2021-07-06 15:15:04,342 INFO L762 garLoopResultBuilder]: For program point averageErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,342 INFO L762 garLoopResultBuilder]: For program point L45(lines 45 49) no Hoare annotation was computed. [2021-07-06 15:15:04,342 INFO L762 garLoopResultBuilder]: For program point L43(lines 43 49) no Hoare annotation was computed. [2021-07-06 15:15:04,343 INFO L762 garLoopResultBuilder]: For program point averageErr9ASSERT_VIOLATIONINTEGER_OVERFLOW(line 46) no Hoare annotation was computed. [2021-07-06 15:15:04,343 INFO L765 garLoopResultBuilder]: At program point averageENTRY(lines 42 50) the Hoare annotation is: true [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point averageEXIT(lines 42 50) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point L35-3(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point L35-4(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point L34(lines 34 37) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point L34-1(lines 34 37) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,344 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-07-06 15:15:04,345 INFO L762 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-07-06 15:15:04,345 INFO L758 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (<= |ULTIMATE.start_random_#res| 2147483647) (<= |ULTIMATE.start_main_#t~ret3| 2147483647) (<= ULTIMATE.start_random_~x~1 2147483647)) [2021-07-06 15:15:04,345 INFO L762 garLoopResultBuilder]: For program point L28-1(line 28) no Hoare annotation was computed. [2021-07-06 15:15:04,345 INFO L762 garLoopResultBuilder]: For program point L24(lines 24 30) no Hoare annotation was computed. [2021-07-06 15:15:04,345 INFO L758 garLoopResultBuilder]: At program point L37(lines 32 38) the Hoare annotation is: (<= ULTIMATE.start_random_~x~1 2147483647) [2021-07-06 15:15:04,345 INFO L758 garLoopResultBuilder]: At program point L37-1(lines 32 38) the Hoare annotation is: (and (<= |ULTIMATE.start_main_#t~ret3| 2147483647) (<= ULTIMATE.start_random_~x~1 2147483647)) [2021-07-06 15:15:04,345 INFO L762 garLoopResultBuilder]: For program point L35(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,345 INFO L762 garLoopResultBuilder]: For program point L35-1(line 35) no Hoare annotation was computed. [2021-07-06 15:15:04,346 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-07-06 15:15:04,346 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:15:04,347 INFO L303 ceAbstractionStarter]: Result for error location averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW was SAFE (2/14) [2021-07-06 15:15:04,348 INFO L328 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW ======== [2021-07-06 15:15:04,349 INFO L329 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, mLimitAnalysisTime=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-07-06 15:15:04,349 INFO L330 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-07-06 15:15:04,350 INFO L276 IsEmpty]: Start isEmpty. Operand has 47 states, 28 states have (on average 1.6428571428571428) internal successors, (46), 42 states have internal predecessors, (46), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2021-07-06 15:15:04,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-07-06 15:15:04,351 INFO L517 BasicCegarLoop]: Found error trace [2021-07-06 15:15:04,351 INFO L525 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-06 15:15:04,351 INFO L374 AbstractCegarLoop]: === Iteration 1 === [averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2021-07-06 15:15:04,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-06 15:15:04,351 INFO L82 PathProgramCache]: Analyzing trace with hash -1898221306, now seen corresponding path program 1 times [2021-07-06 15:15:04,352 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-06 15:15:04,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919132937] [2021-07-06 15:15:04,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-06 15:15:04,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-07-06 15:15:04,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:15:04,360 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:15:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-07-06 15:15:04,372 INFO L224 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-07-06 15:15:04,387 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-07-06 15:15:04,387 INFO L639 BasicCegarLoop]: Counterexample is feasible [2021-07-06 15:15:04,388 WARN L471 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-07-06 15:15:04,388 WARN L182 nStatisticsGenerator]: total relevant statements: 0 [2021-07-06 15:15:04,388 INFO L303 ceAbstractionStarter]: Result for error location averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW was UNSAFE (3/14) [2021-07-06 15:15:04,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.07 03:15:04 BoogieIcfgContainer [2021-07-06 15:15:04,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-06 15:15:04,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-07-06 15:15:04,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-07-06 15:15:04,411 INFO L275 PluginConnector]: Witness Printer initialized [2021-07-06 15:15:04,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.07 03:15:03" (3/4) ... [2021-07-06 15:15:04,412 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-07-06 15:15:04,446 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-07-06 15:15:04,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-07-06 15:15:04,447 INFO L168 Benchmark]: Toolchain (without parser) took 1653.43 ms. Allocated memory was 50.3 MB in the beginning and 81.8 MB in the end (delta: 31.5 MB). Free memory was 27.3 MB in the beginning and 37.4 MB in the end (delta: -10.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:15:04,447 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 50.3 MB. Free memory is still 31.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:15:04,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.46 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 27.0 MB in the beginning and 46.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2021-07-06 15:15:04,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.38 ms. Allocated memory is still 67.1 MB. Free memory was 46.2 MB in the beginning and 50.5 MB in the end (delta: -4.2 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. [2021-07-06 15:15:04,448 INFO L168 Benchmark]: Boogie Preprocessor took 49.06 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 49.5 MB in the end (delta: 957.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-07-06 15:15:04,448 INFO L168 Benchmark]: RCFGBuilder took 327.00 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 35.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-07-06 15:15:04,448 INFO L168 Benchmark]: TraceAbstraction took 1040.98 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 38.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. [2021-07-06 15:15:04,448 INFO L168 Benchmark]: Witness Printer took 35.54 ms. Allocated memory is still 81.8 MB. Free memory was 38.7 MB in the beginning and 37.4 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-07-06 15:15:04,451 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.17 ms. Allocated memory is still 50.3 MB. Free memory is still 31.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 151.46 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 27.0 MB in the beginning and 46.4 MB in the end (delta: -19.4 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 26.38 ms. Allocated memory is still 67.1 MB. Free memory was 46.2 MB in the beginning and 50.5 MB in the end (delta: -4.2 MB). Peak memory consumption was 2.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.06 ms. Allocated memory is still 67.1 MB. Free memory was 50.5 MB in the beginning and 49.5 MB in the end (delta: 957.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 327.00 ms. Allocated memory is still 67.1 MB. Free memory was 49.3 MB in the beginning and 35.4 MB in the end (delta: 14.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1040.98 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 35.0 MB in the beginning and 38.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 16.1 GB. * Witness Printer took 35.54 ms. Allocated memory is still 81.8 MB. Free memory was 38.7 MB in the beginning and 37.4 MB in the end (delta: 1.3 MB). There was no memory consumed. 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 - 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 - 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: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - CounterExampleResult [Line: 44]: integer overflow possible integer overflow possible We found a FailurePath: [L25] int x = __VERIFIER_nondet_int(); [L26] int y = __VERIFIER_nondet_int(); [L27] int z = __VERIFIER_nondet_int(); [L33] int x = __VERIFIER_nondet_int(); [L34] COND FALSE !(x < 0) [L37] return x; [L33] int x = __VERIFIER_nondet_int(); [L34] COND FALSE !(x < 0) [L37] return x; [L28] CALL average(random(),random()) VAL [\old(x)=1, \old(y)=2147483647] [L43] COND TRUE x > 0 VAL [\old(x)=1, \old(y)=2147483647, x=1, y=2147483647] [L44] x-1 VAL [\old(x)=1, \old(y)=2147483647, x=1, y=2147483647] [L44] y+1 VAL [\old(x)=1, \old(y)=2147483647, x=1, y=2147483647] - StatisticsResult: Ultimate Automizer benchmark data for error location: averageErr0ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 47 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 806.2ms, OverallIterations: 2, TraceHistogramMax: 2, EmptinessCheckTime: 7.7ms, AutomataDifference: 296.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 137.1ms, InitialAbstractionConstructionTime: 11.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 59 SDtfs, 112 SDslu, 163 SDs, 0 SdLazy, 150 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 110.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 119.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 27.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 8 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 18 PreInvPairs, 18 NumberOfFragments, 46 HoareAnnotationTreeSize, 18 FomulaSimplifications, 59 FormulaSimplificationTreeSizeReduction, 58.9ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 28 FormulaSimplificationTreeSizeReductionInter, 69.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 10.6ms SsaConstructionTime, 39.1ms SatisfiabilityAnalysisTime, 156.0ms InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 58 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: averageErr1ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 47 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 88.5ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 1.1ms, AutomataDifference: 21.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 21.3ms, InitialAbstractionConstructionTime: 1.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 52 SDtfs, 8 SDslu, 37 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 0.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 6 LocationsWithAnnotation, 12 PreInvPairs, 12 NumberOfFragments, 8 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 15.1ms HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.3ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 1.0ms SsaConstructionTime, 5.4ms SatisfiabilityAnalysisTime, 11.6ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 - StatisticsResult: Ultimate Automizer benchmark data for error location: averageErr2ASSERT_VIOLATIONINTEGER_OVERFLOW CFG has 2 procedures, 47 locations, 14 error locations. Started 1 CEGAR loops. OverallTime: 39.7ms, OverallIterations: 1, TraceHistogramMax: 1, EmptinessCheckTime: 0.8ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8ms SsaConstructionTime, 5.4ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: x <= 2147483647 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: aux-random()-aux <= 2147483647 && x <= 2147483647 RESULT: Ultimate proved your program to be incorrect! [2021-07-06 15:15:04,486 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...