./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5fbdf5bf Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.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 0a8f096dedbbe798ef2fe808d4231fc7a503c17f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5fbdf5b [2021-08-30 22:07:49,614 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-30 22:07:49,616 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-30 22:07:49,640 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-30 22:07:49,641 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-30 22:07:49,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-30 22:07:49,643 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-30 22:07:49,645 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-30 22:07:49,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-30 22:07:49,651 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-30 22:07:49,652 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-30 22:07:49,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-30 22:07:49,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-30 22:07:49,654 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-30 22:07:49,656 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-30 22:07:49,657 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-30 22:07:49,657 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-30 22:07:49,658 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-30 22:07:49,660 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-30 22:07:49,661 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-30 22:07:49,663 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-30 22:07:49,664 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-30 22:07:49,665 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-30 22:07:49,666 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-30 22:07:49,668 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-30 22:07:49,668 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-30 22:07:49,669 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-30 22:07:49,670 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-30 22:07:49,670 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-30 22:07:49,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-30 22:07:49,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-30 22:07:49,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-30 22:07:49,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-30 22:07:49,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-30 22:07:49,674 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-30 22:07:49,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-30 22:07:49,675 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-30 22:07:49,675 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-30 22:07:49,675 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-30 22:07:49,676 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-30 22:07:49,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-30 22:07:49,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2021-08-30 22:07:49,712 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-30 22:07:49,712 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-30 22:07:49,713 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-30 22:07:49,713 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-30 22:07:49,715 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-30 22:07:49,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-30 22:07:49,715 INFO L138 SettingsManager]: * Use SBE=true [2021-08-30 22:07:49,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-30 22:07:49,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-30 22:07:49,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-30 22:07:49,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-30 22:07:49,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-30 22:07:49,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-30 22:07:49,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-30 22:07:49,718 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-08-30 22:07:49,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-30 22:07:49,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-30 22:07:49,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-30 22:07:49,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-30 22:07:49,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-30 22:07:49,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-30 22:07:49,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:07:49,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-30 22:07:49,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-30 22:07:49,719 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-30 22:07:49,720 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-30 22:07:49,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-30 22:07:49,720 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-30 22:07:49,720 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-30 22:07:49,720 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0a8f096dedbbe798ef2fe808d4231fc7a503c17f [2021-08-30 22:07:50,039 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-30 22:07:50,066 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-30 22:07:50,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-30 22:07:50,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-30 22:07:50,070 INFO L275 PluginConnector]: CDTParser initialized [2021-08-30 22:07:50,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2021-08-30 22:07:50,123 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5fc9a051/d9aa9677857249c8bbea00a5d789005b/FLAG783e6b31d [2021-08-30 22:07:50,551 INFO L306 CDTParser]: Found 1 translation units. [2021-08-30 22:07:50,552 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2021-08-30 22:07:50,557 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5fc9a051/d9aa9677857249c8bbea00a5d789005b/FLAG783e6b31d [2021-08-30 22:07:50,963 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5fc9a051/d9aa9677857249c8bbea00a5d789005b [2021-08-30 22:07:50,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-30 22:07:50,966 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-30 22:07:50,967 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-30 22:07:50,967 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-30 22:07:50,986 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-30 22:07:50,987 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:07:50" (1/1) ... [2021-08-30 22:07:50,988 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64cbdf48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:50, skipping insertion in model container [2021-08-30 22:07:50,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.08 10:07:50" (1/1) ... [2021-08-30 22:07:50,994 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-30 22:07:51,008 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-30 22:07:51,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:07:51,124 INFO L203 MainTranslator]: Completed pre-run [2021-08-30 22:07:51,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-30 22:07:51,144 INFO L208 MainTranslator]: Completed translation [2021-08-30 22:07:51,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51 WrapperNode [2021-08-30 22:07:51,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-30 22:07:51,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-30 22:07:51,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-30 22:07:51,146 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-30 22:07:51,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-30 22:07:51,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-30 22:07:51,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-30 22:07:51,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-30 22:07:51,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,210 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,211 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-30 22:07:51,216 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-30 22:07:51,216 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-30 22:07:51,217 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-30 22:07:51,217 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (1/1) ... [2021-08-30 22:07:51,222 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-30 22:07:51,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:07:51,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-30 22:07:51,267 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-30 22:07:51,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-30 22:07:51,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-30 22:07:51,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-30 22:07:51,388 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-08-30 22:07:51,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:51 BoogieIcfgContainer [2021-08-30 22:07:51,390 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-30 22:07:51,391 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-30 22:07:51,391 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-30 22:07:51,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-30 22:07:51,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.08 10:07:50" (1/3) ... [2021-08-30 22:07:51,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e012fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:07:51, skipping insertion in model container [2021-08-30 22:07:51,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.08 10:07:51" (2/3) ... [2021-08-30 22:07:51,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e012fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.08 10:07:51, skipping insertion in model container [2021-08-30 22:07:51,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:51" (3/3) ... [2021-08-30 22:07:51,396 INFO L111 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-cousot9.c [2021-08-30 22:07:51,400 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-30 22:07:51,401 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2021-08-30 22:07:51,450 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-30 22:07:51,460 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-30 22:07:51,460 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-08-30 22:07:51,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 10 states have (on average 1.7) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:51,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:07:51,478 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:51,479 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:07:51,479 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)] === [2021-08-30 22:07:51,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:51,486 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2021-08-30 22:07:51,499 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:51,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361052359] [2021-08-30 22:07:51,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:51,501 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:51,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:51,661 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:07:51,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361052359] [2021-08-30 22:07:51,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361052359] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:07:51,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:07:51,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-30 22:07:51,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405965912] [2021-08-30 22:07:51,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:07:51,668 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:07:51,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:07:51,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:51,703 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) [2021-08-30 22:07:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:07:51,771 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2021-08-30 22:07:51,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:07:51,773 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 [2021-08-30 22:07:51,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:07:51,779 INFO L225 Difference]: With dead ends: 19 [2021-08-30 22:07:51,792 INFO L226 Difference]: Without dead ends: 10 [2021-08-30 22:07:51,795 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.01ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:51,799 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 34.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.48ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.17ms IncrementalHoareTripleChecker+Time [2021-08-30 22:07:51,800 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 0 Invalid, 16 Unknown, 0 Unchecked, 0.48ms Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 52.17ms Time] [2021-08-30 22:07:51,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-08-30 22:07:51,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-08-30 22:07:51,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:51,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2021-08-30 22:07:51,844 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 4 [2021-08-30 22:07:51,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:07:51,844 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2021-08-30 22:07:51,844 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) [2021-08-30 22:07:51,845 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2021-08-30 22:07:51,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-08-30 22:07:51,845 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:51,845 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-08-30 22:07:51,845 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-30 22:07:51,846 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:07:51,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:51,846 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2021-08-30 22:07:51,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:51,847 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498699206] [2021-08-30 22:07:51,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:51,847 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:51,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:51,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:51,881 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:07:51,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498699206] [2021-08-30 22:07:51,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498699206] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:07:51,883 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:07:51,883 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-08-30 22:07:51,883 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781044543] [2021-08-30 22:07:51,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:07:51,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:07:51,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:07:51,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:51,886 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. 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) [2021-08-30 22:07:51,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:07:51,928 INFO L93 Difference]: Finished difference Result 15 states and 18 transitions. [2021-08-30 22:07:51,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:07:51,929 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 [2021-08-30 22:07:51,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:07:51,929 INFO L225 Difference]: With dead ends: 15 [2021-08-30 22:07:51,931 INFO L226 Difference]: Without dead ends: 14 [2021-08-30 22:07:51,932 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.78ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:51,933 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 2 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 27.61ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.38ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 38.54ms IncrementalHoareTripleChecker+Time [2021-08-30 22:07:51,934 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 0 Invalid, 22 Unknown, 0 Unchecked, 0.38ms Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 38.54ms Time] [2021-08-30 22:07:51,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-08-30 22:07:51,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-08-30 22:07:51,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.5454545454545454) internal successors, (17), 13 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:51,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2021-08-30 22:07:51,940 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 4 [2021-08-30 22:07:51,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:07:51,941 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2021-08-30 22:07:51,941 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) [2021-08-30 22:07:51,942 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2021-08-30 22:07:51,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:07:51,942 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:51,942 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:07:51,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-30 22:07:51,943 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:07:51,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:51,944 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2021-08-30 22:07:51,944 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:51,945 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740141834] [2021-08-30 22:07:51,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:51,945 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:51,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:51,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:51,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:07:51,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740141834] [2021-08-30 22:07:51,995 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740141834] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:07:51,995 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:07:51,995 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:07:51,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902169642] [2021-08-30 22:07:51,996 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:07:51,996 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:07:51,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:07:51,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:51,997 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:07:52,014 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2021-08-30 22:07:52,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:07:52,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-30 22:07:52,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:07:52,015 INFO L225 Difference]: With dead ends: 16 [2021-08-30 22:07:52,015 INFO L226 Difference]: Without dead ends: 15 [2021-08-30 22:07:52,016 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.06ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:52,017 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 5 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.00ms IncrementalHoareTripleChecker+Time [2021-08-30 22:07:52,018 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 0 Invalid, 13 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 12.00ms Time] [2021-08-30 22:07:52,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-08-30 22:07:52,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2021-08-30 22:07:52,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 12 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2021-08-30 22:07:52,024 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 5 [2021-08-30 22:07:52,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:07:52,026 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2021-08-30 22:07:52,026 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,026 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2021-08-30 22:07:52,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2021-08-30 22:07:52,026 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:52,027 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2021-08-30 22:07:52,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-30 22:07:52,027 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:07:52,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:52,029 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2021-08-30 22:07:52,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:52,029 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511909514] [2021-08-30 22:07:52,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:52,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:52,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:52,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:07:52,055 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511909514] [2021-08-30 22:07:52,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511909514] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-30 22:07:52,055 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-30 22:07:52,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-30 22:07:52,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526037735] [2021-08-30 22:07:52,056 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-30 22:07:52,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:07:52,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-30 22:07:52,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:52,058 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:07:52,075 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2021-08-30 22:07:52,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-30 22:07:52,075 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2021-08-30 22:07:52,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:07:52,076 INFO L225 Difference]: With dead ends: 13 [2021-08-30 22:07:52,076 INFO L226 Difference]: Without dead ends: 12 [2021-08-30 22:07:52,076 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.55ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-30 22:07:52,085 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.05ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.16ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.53ms IncrementalHoareTripleChecker+Time [2021-08-30 22:07:52,086 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 15 Unknown, 0 Unchecked, 0.16ms Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 13.53ms Time] [2021-08-30 22:07:52,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-08-30 22:07:52,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2021-08-30 22:07:52,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 11 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2021-08-30 22:07:52,093 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 5 [2021-08-30 22:07:52,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:07:52,094 INFO L470 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2021-08-30 22:07:52,094 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,094 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2021-08-30 22:07:52,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-08-30 22:07:52,095 INFO L505 BasicCegarLoop]: Found error trace [2021-08-30 22:07:52,095 INFO L513 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2021-08-30 22:07:52,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-30 22:07:52,095 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2021-08-30 22:07:52,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-30 22:07:52,098 INFO L82 PathProgramCache]: Analyzing trace with hash 784501120, now seen corresponding path program 1 times [2021-08-30 22:07:52,098 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-30 22:07:52,098 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003473070] [2021-08-30 22:07:52,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:52,099 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-30 22:07:52,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:52,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:52,170 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-30 22:07:52,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003473070] [2021-08-30 22:07:52,170 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003473070] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-30 22:07:52,170 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004422695] [2021-08-30 22:07:52,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-30 22:07:52,171 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:07:52,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-30 22:07:52,172 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-30 22:07:52,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-30 22:07:52,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-30 22:07:52,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-30 22:07:52,206 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-30 22:07:52,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:52,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-30 22:07:52,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-30 22:07:52,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004422695] provided 0 perfect and 2 imperfect interpolant sequences [2021-08-30 22:07:52,286 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2021-08-30 22:07:52,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 2, 2] total 7 [2021-08-30 22:07:52,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137995438] [2021-08-30 22:07:52,286 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-30 22:07:52,287 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-30 22:07:52,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-30 22:07:52,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2021-08-30 22:07:52,288 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-30 22:07:52,343 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-08-30 22:07:52,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-30 22:07:52,344 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 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 [2021-08-30 22:07:52,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-30 22:07:52,344 INFO L225 Difference]: With dead ends: 14 [2021-08-30 22:07:52,344 INFO L226 Difference]: Without dead ends: 0 [2021-08-30 22:07:52,345 INFO L927 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 58.36ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132 [2021-08-30 22:07:52,346 INFO L928 BasicCegarLoop]: 0 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.73ms SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.54ms IncrementalHoareTripleChecker+Time [2021-08-30 22:07:52,346 INFO L929 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 0 Invalid, 45 Unknown, 0 Unchecked, 0.73ms Time], IncrementalHoareTripleChecker [14 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 24.54ms Time] [2021-08-30 22:07:52,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-30 22:07:52,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-30 22:07:52,347 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) [2021-08-30 22:07:52,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-30 22:07:52,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2021-08-30 22:07:52,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-30 22:07:52,348 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-30 22:07:52,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-30 22:07:52,348 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-30 22:07:52,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-30 22:07:52,350 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2021-08-30 22:07:52,351 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2021-08-30 22:07:52,351 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2021-08-30 22:07:52,351 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2021-08-30 22:07:52,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-30 22:07:52,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-30 22:07:52,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-30 22:07:52,578 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:07:52,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-30 22:07:52,595 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-08-30 22:07:52,595 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-30 22:07:52,595 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-08-30 22:07:52,599 INFO L858 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2021-08-30 22:07:52,600 INFO L858 garLoopResultBuilder]: For program point L23-1(line 23) no Hoare annotation was computed. [2021-08-30 22:07:52,600 INFO L858 garLoopResultBuilder]: For program point L19(lines 19 24) no Hoare annotation was computed. [2021-08-30 22:07:52,600 INFO L854 garLoopResultBuilder]: At program point L19-2(lines 18 25) the Hoare annotation is: (and (<= ULTIMATE.start_main_~N~0 2147483647) (<= ULTIMATE.start_main_~j~0 2147483647) (<= ULTIMATE.start_main_~i~0 2147483647)) [2021-08-30 22:07:52,600 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2021-08-30 22:07:52,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2021-08-30 22:07:52,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-30 22:07:52,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-30 22:07:52,602 INFO L854 garLoopResultBuilder]: At program point L26(lines 13 27) the Hoare annotation is: (<= ULTIMATE.start_main_~i~0 2147483647) [2021-08-30 22:07:52,602 INFO L858 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2021-08-30 22:07:52,602 INFO L858 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2021-08-30 22:07:52,603 INFO L858 garLoopResultBuilder]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2021-08-30 22:07:52,609 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-30 22:07:52,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.08 10:07:52 BoogieIcfgContainer [2021-08-30 22:07:52,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-30 22:07:52,630 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-30 22:07:52,630 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-30 22:07:52,630 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-30 22:07:52,631 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.08 10:07:51" (3/4) ... [2021-08-30 22:07:52,633 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-30 22:07:52,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-08-30 22:07:52,640 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-30 22:07:52,662 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-30 22:07:52,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-30 22:07:52,663 INFO L158 Benchmark]: Toolchain (without parser) took 1696.66ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 32.8MB in the beginning and 22.8MB in the end (delta: 10.0MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2021-08-30 22:07:52,663 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:07:52,663 INFO L158 Benchmark]: CACSL2BoogieTranslator took 177.92ms. Allocated memory is still 54.5MB. Free memory was 32.7MB in the beginning and 24.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-08-30 22:07:52,664 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.78ms. Allocated memory is still 54.5MB. Free memory was 24.2MB in the beginning and 38.1MB in the end (delta: -13.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-08-30 22:07:52,664 INFO L158 Benchmark]: Boogie Preprocessor took 12.53ms. Allocated memory is still 54.5MB. Free memory was 38.1MB in the beginning and 37.3MB in the end (delta: 769.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-08-30 22:07:52,664 INFO L158 Benchmark]: RCFGBuilder took 173.32ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 29.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-08-30 22:07:52,665 INFO L158 Benchmark]: TraceAbstraction took 1237.85ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.3MB in the beginning and 24.9MB in the end (delta: 4.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2021-08-30 22:07:52,665 INFO L158 Benchmark]: Witness Printer took 32.52ms. Allocated memory is still 67.1MB. Free memory was 24.9MB in the beginning and 22.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-08-30 22:07:52,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 54.5MB. Free memory was 36.0MB in the beginning and 36.0MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 177.92ms. Allocated memory is still 54.5MB. Free memory was 32.7MB in the beginning and 24.2MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.78ms. Allocated memory is still 54.5MB. Free memory was 24.2MB in the beginning and 38.1MB in the end (delta: -13.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 12.53ms. Allocated memory is still 54.5MB. Free memory was 38.1MB in the beginning and 37.3MB in the end (delta: 769.6kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 173.32ms. Allocated memory is still 54.5MB. Free memory was 37.2MB in the beginning and 29.9MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1237.85ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 29.3MB in the beginning and 24.9MB in the end (delta: 4.4MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Witness Printer took 32.52ms. Allocated memory is still 67.1MB. Free memory was 24.9MB in the beginning and 22.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 1160.48ms, OverallIterations: 5, TraceHistogramMax: 2, EmptinessCheckTime: 9.74ms, AutomataDifference: 299.55ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 20.82ms, InitialAbstractionConstructionTime: 10.49ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 140.78ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 101.32ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 94 IncrementalHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 0 mSDtfsCounter, 94 mSolverCounterSat, 1.91ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 80.75ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 45.69ms AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.00ms HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 37 FormulaSimplificationTreeSizeReduction, 9.22ms HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 5.33ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 11.60ms SsaConstructionTime, 54.81ms SatisfiabilityAnalysisTime, 296.79ms InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 103 SizeOfPredicates, 1 NumberOfNonLiveVariables, 23 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 7 InterpolantComputations, 4 PerfectInterpolantSequences, 0/6 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: 18]: Loop Invariant Derived loop invariant: (N <= 2147483647 && j <= 2147483647) && i <= 2147483647 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: i <= 2147483647 RESULT: Ultimate proved your program to be correct! [2021-08-30 22:07:52,712 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...