./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer --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 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:02:31,592 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:02:31,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:02:31,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:02:31,676 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:02:31,677 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:02:31,679 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:02:31,682 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:02:31,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:02:31,686 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:02:31,687 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:02:31,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:02:31,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:02:31,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:02:31,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:02:31,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:02:31,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:02:31,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:02:31,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:02:31,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:02:31,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:02:31,705 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:02:31,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:02:31,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:02:31,718 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:02:31,723 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:02:31,723 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:02:31,725 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:02:31,727 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:02:31,728 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:02:31,729 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:02:31,730 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:02:31,731 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:02:31,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:02:31,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:02:31,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:02:31,737 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:02:31,737 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:02:31,737 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:02:31,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:02:31,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:02:31,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-29 20:02:31,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:02:31,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:02:31,787 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:02:31,787 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:02:31,788 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:02:31,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:02:31,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-29 20:02:31,788 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:02:31,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:02:31,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:02:31,790 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:02:31,790 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:02:31,791 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-29 20:02:31,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:02:31,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:02:31,791 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:02:31,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:02:31,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:02:31,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:02:31,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:02:31,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:02:31,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:02:31,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:02:31,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:02:31,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:02:31,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:02:31,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:02:31,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:02:31,794 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:/tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 835dc6725bef5f7d15ae0e4368f1a97f9d2b8c09 [2020-11-29 20:02:32,069 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:02:32,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:02:32,095 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:02:32,096 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:02:32,097 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:02:32,098 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-11-29 20:02:32,209 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/data/01734fe7b/f412a0f33003458f9f6308bc927101bf/FLAG728f99fa7 [2020-11-29 20:02:32,799 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:02:32,799 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/sv-benchmarks/c/termination-crafted-lit/UrbanMine-ESOP2014-Fig3.c [2020-11-29 20:02:32,805 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/data/01734fe7b/f412a0f33003458f9f6308bc927101bf/FLAG728f99fa7 [2020-11-29 20:02:33,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/data/01734fe7b/f412a0f33003458f9f6308bc927101bf [2020-11-29 20:02:33,182 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:02:33,184 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:02:33,188 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:02:33,188 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:02:33,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:02:33,194 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,196 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f718708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33, skipping insertion in model container [2020-11-29 20:02:33,197 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:02:33,219 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:02:33,355 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:02:33,359 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:02:33,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:02:33,407 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:02:33,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33 WrapperNode [2020-11-29 20:02:33,408 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:02:33,409 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:02:33,409 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:02:33,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:02:33,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,425 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:02:33,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:02:33,445 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:02:33,445 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:02:33,452 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,459 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,460 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... [2020-11-29 20:02:33,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:02:33,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:02:33,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:02:33,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:02:33,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:02:33,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:02:33,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:02:33,748 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:02:33,748 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-29 20:02:33,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:02:33 BoogieIcfgContainer [2020-11-29 20:02:33,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:02:33,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:02:33,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:02:33,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:02:33,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:02:33" (1/3) ... [2020-11-29 20:02:33,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fef21e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:02:33, skipping insertion in model container [2020-11-29 20:02:33,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:02:33" (2/3) ... [2020-11-29 20:02:33,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fef21e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:02:33, skipping insertion in model container [2020-11-29 20:02:33,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:02:33" (3/3) ... [2020-11-29 20:02:33,781 INFO L111 eAbstractionObserver]: Analyzing ICFG UrbanMine-ESOP2014-Fig3.c [2020-11-29 20:02:33,792 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:02:33,812 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-29 20:02:33,824 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-29 20:02:33,849 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:02:33,850 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:02:33,850 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:02:33,850 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:02:33,850 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:02:33,850 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:02:33,851 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:02:33,851 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:02:33,866 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-29 20:02:33,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:02:33,871 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:33,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 20:02:33,873 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:02:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:33,878 INFO L82 PathProgramCache]: Analyzing trace with hash 29863588, now seen corresponding path program 1 times [2020-11-29 20:02:33,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:02:33,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201452965] [2020-11-29 20:02:33,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:02:33,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201452965] [2020-11-29 20:02:34,077 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:34,077 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:02:34,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858575677] [2020-11-29 20:02:34,082 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:02:34,083 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:02:34,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:02:34,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,103 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 3 states. [2020-11-29 20:02:34,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:34,233 INFO L93 Difference]: Finished difference Result 43 states and 50 transitions. [2020-11-29 20:02:34,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:02:34,236 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 20:02:34,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:34,246 INFO L225 Difference]: With dead ends: 43 [2020-11-29 20:02:34,246 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 20:02:34,250 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 20:02:34,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2020-11-29 20:02:34,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 20:02:34,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-11-29 20:02:34,289 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 5 [2020-11-29 20:02:34,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:34,290 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-11-29 20:02:34,290 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:02:34,290 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-11-29 20:02:34,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:02:34,291 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:34,291 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 20:02:34,292 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:02:34,292 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:02:34,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:34,293 INFO L82 PathProgramCache]: Analyzing trace with hash 29863780, now seen corresponding path program 1 times [2020-11-29 20:02:34,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:02:34,294 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544403283] [2020-11-29 20:02:34,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:02:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,326 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544403283] [2020-11-29 20:02:34,326 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:34,326 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:02:34,326 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180328819] [2020-11-29 20:02:34,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:02:34,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:02:34,330 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:02:34,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,330 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 3 states. [2020-11-29 20:02:34,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:34,368 INFO L93 Difference]: Finished difference Result 28 states and 36 transitions. [2020-11-29 20:02:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:02:34,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 20:02:34,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:34,369 INFO L225 Difference]: With dead ends: 28 [2020-11-29 20:02:34,370 INFO L226 Difference]: Without dead ends: 26 [2020-11-29 20:02:34,371 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-29 20:02:34,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-29 20:02:34,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 20:02:34,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 33 transitions. [2020-11-29 20:02:34,377 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 33 transitions. Word has length 5 [2020-11-29 20:02:34,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:34,378 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 33 transitions. [2020-11-29 20:02:34,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:02:34,378 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2020-11-29 20:02:34,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-29 20:02:34,379 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:34,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-29 20:02:34,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:02:34,380 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:02:34,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:34,381 INFO L82 PathProgramCache]: Analyzing trace with hash 29879476, now seen corresponding path program 1 times [2020-11-29 20:02:34,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:02:34,382 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72165803] [2020-11-29 20:02:34,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:02:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72165803] [2020-11-29 20:02:34,429 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:34,429 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:02:34,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706355842] [2020-11-29 20:02:34,429 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:02:34,429 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:02:34,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:02:34,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,431 INFO L87 Difference]: Start difference. First operand 26 states and 33 transitions. Second operand 3 states. [2020-11-29 20:02:34,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:34,477 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-11-29 20:02:34,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:02:34,478 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-29 20:02:34,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:34,479 INFO L225 Difference]: With dead ends: 26 [2020-11-29 20:02:34,479 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 20:02:34,480 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 20:02:34,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-29 20:02:34,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 20:02:34,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 32 transitions. [2020-11-29 20:02:34,485 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 32 transitions. Word has length 5 [2020-11-29 20:02:34,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:34,486 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 32 transitions. [2020-11-29 20:02:34,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:02:34,486 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 32 transitions. [2020-11-29 20:02:34,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:02:34,487 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:34,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:02:34,487 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 20:02:34,488 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:02:34,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:34,489 INFO L82 PathProgramCache]: Analyzing trace with hash 925771278, now seen corresponding path program 1 times [2020-11-29 20:02:34,489 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:02:34,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25778870] [2020-11-29 20:02:34,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:02:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,515 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25778870] [2020-11-29 20:02:34,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:34,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:02:34,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114310364] [2020-11-29 20:02:34,516 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:02:34,517 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:02:34,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:02:34,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,518 INFO L87 Difference]: Start difference. First operand 25 states and 32 transitions. Second operand 3 states. [2020-11-29 20:02:34,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:34,563 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-11-29 20:02:34,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:02:34,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 20:02:34,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:34,565 INFO L225 Difference]: With dead ends: 52 [2020-11-29 20:02:34,565 INFO L226 Difference]: Without dead ends: 28 [2020-11-29 20:02:34,566 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-29 20:02:34,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-29 20:02:34,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 20:02:34,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 34 transitions. [2020-11-29 20:02:34,572 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 34 transitions. Word has length 6 [2020-11-29 20:02:34,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:34,572 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 34 transitions. [2020-11-29 20:02:34,573 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:02:34,573 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 34 transitions. [2020-11-29 20:02:34,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:02:34,573 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:34,574 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:02:34,574 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 20:02:34,574 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:02:34,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:34,575 INFO L82 PathProgramCache]: Analyzing trace with hash 925777236, now seen corresponding path program 1 times [2020-11-29 20:02:34,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:02:34,576 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041726507] [2020-11-29 20:02:34,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:02:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041726507] [2020-11-29 20:02:34,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:34,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:02:34,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604752031] [2020-11-29 20:02:34,603 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:02:34,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:02:34,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:02:34,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,604 INFO L87 Difference]: Start difference. First operand 28 states and 34 transitions. Second operand 3 states. [2020-11-29 20:02:34,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:34,642 INFO L93 Difference]: Finished difference Result 29 states and 35 transitions. [2020-11-29 20:02:34,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:02:34,644 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 20:02:34,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:34,644 INFO L225 Difference]: With dead ends: 29 [2020-11-29 20:02:34,645 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 20:02:34,645 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 20:02:34,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2020-11-29 20:02:34,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-29 20:02:34,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-11-29 20:02:34,650 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 6 [2020-11-29 20:02:34,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:34,651 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-11-29 20:02:34,651 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:02:34,651 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-11-29 20:02:34,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-29 20:02:34,651 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:34,651 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-29 20:02:34,652 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 20:02:34,652 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:02:34,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:34,656 INFO L82 PathProgramCache]: Analyzing trace with hash 926263822, now seen corresponding path program 1 times [2020-11-29 20:02:34,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:02:34,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517598721] [2020-11-29 20:02:34,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:02:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517598721] [2020-11-29 20:02:34,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:34,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-29 20:02:34,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511945276] [2020-11-29 20:02:34,708 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-29 20:02:34,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:02:34,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-29 20:02:34,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,709 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 3 states. [2020-11-29 20:02:34,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:34,742 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2020-11-29 20:02:34,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 20:02:34,743 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-29 20:02:34,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:34,744 INFO L225 Difference]: With dead ends: 26 [2020-11-29 20:02:34,744 INFO L226 Difference]: Without dead ends: 25 [2020-11-29 20:02:34,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-29 20:02:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2020-11-29 20:02:34,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2020-11-29 20:02:34,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-11-29 20:02:34,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2020-11-29 20:02:34,750 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 6 [2020-11-29 20:02:34,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:34,750 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2020-11-29 20:02:34,750 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-29 20:02:34,750 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2020-11-29 20:02:34,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:02:34,751 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:34,751 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:02:34,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 20:02:34,751 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-29 20:02:34,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:34,752 INFO L82 PathProgramCache]: Analyzing trace with hash -248985325, now seen corresponding path program 1 times [2020-11-29 20:02:34,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:02:34,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239965554] [2020-11-29 20:02:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:02:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,805 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239965554] [2020-11-29 20:02:34,805 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842031807] [2020-11-29 20:02:34,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-29 20:02:34,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:34,845 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 20:02:34,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:02:34,899 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:34,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-29 20:02:34,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-11-29 20:02:34,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561263846] [2020-11-29 20:02:34,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 20:02:34,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:02:34,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 20:02:34,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:02:34,902 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand 4 states. [2020-11-29 20:02:34,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:34,965 INFO L93 Difference]: Finished difference Result 50 states and 62 transitions. [2020-11-29 20:02:34,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:02:34,965 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-11-29 20:02:34,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:34,966 INFO L225 Difference]: With dead ends: 50 [2020-11-29 20:02:34,966 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:02:34,967 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:02:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:02:34,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:02:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:02:34,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:02:34,967 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-29 20:02:34,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:34,968 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:02:34,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 20:02:34,968 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:02:34,968 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:02:35,180 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-11-29 20:02:35,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:02:35,258 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-29 20:02:35,259 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:02:35,259 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-29 20:02:35,259 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2020-11-29 20:02:35,259 INFO L274 CegarLoopResult]: For program point L27(lines 27 32) no Hoare annotation was computed. [2020-11-29 20:02:35,259 INFO L270 CegarLoopResult]: At program point L27-2(lines 18 34) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-29 20:02:35,259 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-29 20:02:35,259 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point L19(lines 19 33) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 28) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point L30-1(line 30) no Hoare annotation was computed. [2020-11-29 20:02:35,260 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:02:35,261 INFO L274 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-11-29 20:02:35,261 INFO L274 CegarLoopResult]: For program point L28-1(line 28) no Hoare annotation was computed. [2020-11-29 20:02:35,261 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-29 20:02:35,261 INFO L274 CegarLoopResult]: For program point L24-1(line 24) no Hoare annotation was computed. [2020-11-29 20:02:35,261 INFO L274 CegarLoopResult]: For program point L20(lines 20 25) no Hoare annotation was computed. [2020-11-29 20:02:35,261 INFO L274 CegarLoopResult]: For program point L18-2(lines 18 34) no Hoare annotation was computed. [2020-11-29 20:02:35,262 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW(line 30) no Hoare annotation was computed. [2020-11-29 20:02:35,262 INFO L277 CegarLoopResult]: At program point L35(lines 13 36) the Hoare annotation is: true [2020-11-29 20:02:35,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:02:35 BoogieIcfgContainer [2020-11-29 20:02:35,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:02:35,278 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:02:35,278 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:02:35,278 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:02:35,279 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:02:33" (3/4) ... [2020-11-29 20:02:35,282 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:02:35,297 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-29 20:02:35,297 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 20:02:35,347 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_c3455b60-b327-4654-98b2-71db23e08683/bin/uautomizer/witness.graphml [2020-11-29 20:02:35,350 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:02:35,352 INFO L168 Benchmark]: Toolchain (without parser) took 2166.96 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 48.7 MB in the beginning and 58.0 MB in the end (delta: -9.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:35,354 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:02:35,354 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.41 ms. Allocated memory is still 79.7 MB. Free memory was 48.6 MB in the beginning and 59.6 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:35,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 79.7 MB. Free memory was 59.6 MB in the beginning and 58.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:02:35,356 INFO L168 Benchmark]: Boogie Preprocessor took 17.98 ms. Allocated memory is still 79.7 MB. Free memory was 58.4 MB in the beginning and 57.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:02:35,356 INFO L168 Benchmark]: RCFGBuilder took 294.13 ms. Allocated memory is still 79.7 MB. Free memory was 57.3 MB in the beginning and 46.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:35,357 INFO L168 Benchmark]: TraceAbstraction took 1503.99 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 60.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:35,357 INFO L168 Benchmark]: Witness Printer took 72.85 ms. Allocated memory is still 98.6 MB. Free memory was 60.6 MB in the beginning and 58.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:35,363 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 79.7 MB. Free memory was 39.2 MB in the beginning and 39.2 MB in the end (delta: 31.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.41 ms. Allocated memory is still 79.7 MB. Free memory was 48.6 MB in the beginning and 59.6 MB in the end (delta: -11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.99 ms. Allocated memory is still 79.7 MB. Free memory was 59.6 MB in the beginning and 58.4 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.98 ms. Allocated memory is still 79.7 MB. Free memory was 58.4 MB in the beginning and 57.3 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 294.13 ms. Allocated memory is still 79.7 MB. Free memory was 57.3 MB in the beginning and 46.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1503.99 ms. Allocated memory was 79.7 MB in the beginning and 98.6 MB in the end (delta: 18.9 MB). Free memory was 46.4 MB in the beginning and 60.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 6.0 MB. Max. memory is 16.1 GB. * Witness Printer took 72.85 ms. Allocated memory is still 98.6 MB. Free memory was 60.6 MB in the beginning and 58.0 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 28]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 0 <= x + 2147483648) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.3s, OverallIterations: 7, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 108 SDtfs, 74 SDslu, 30 SDs, 0 SdLazy, 91 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 25 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 45 ConstructedInterpolants, 0 QuantifiedInterpolants, 832 SizeOfPredicates, 0 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 3/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...