./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.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_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/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 bc157475d6c321934f68f6b441d83c0582720461 ................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:10:29,796 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:10:29,798 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:10:29,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:10:29,842 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:10:29,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:10:29,845 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:10:29,848 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:10:29,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:10:29,860 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:10:29,862 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:10:29,863 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:10:29,864 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:10:29,865 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:10:29,867 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:10:29,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:10:29,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:10:29,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:10:29,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:10:29,890 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:10:29,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:10:29,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:10:29,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:10:29,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:10:29,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:10:29,909 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:10:29,910 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:10:29,911 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:10:29,911 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:10:29,912 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:10:29,913 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:10:29,914 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:10:29,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:10:29,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:10:29,923 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:10:29,923 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:10:29,924 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:10:29,924 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:10:29,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:10:29,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:10:29,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:10:29,930 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-11-28 03:10:29,975 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:10:29,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:10:29,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:10:29,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:10:29,984 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:10:29,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:10:29,985 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:10:29,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:10:29,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:10:29,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:10:29,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:10:29,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:10:29,987 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:10:29,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:10:29,988 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:10:29,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:10:29,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:10:29,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:10:29,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:10:29,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:10:29,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:10:29,990 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:10:29,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:10:29,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:10:29,991 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:10:29,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:10:29,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:10:29,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:10:29,991 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_b2701d5f-86f6-4908-bf8e-3d1370cfd855/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc157475d6c321934f68f6b441d83c0582720461 [2020-11-28 03:10:30,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:10:30,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:10:30,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:10:30,309 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:10:30,312 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:10:30,313 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-11-28 03:10:30,384 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/data/6ef741beb/ee707c92fa0f4449b71c39dd486537bf/FLAG4050f1c9a [2020-11-28 03:10:30,802 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:10:30,803 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/sv-benchmarks/c/termination-crafted-lit/KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-11-28 03:10:30,808 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/data/6ef741beb/ee707c92fa0f4449b71c39dd486537bf/FLAG4050f1c9a [2020-11-28 03:10:31,204 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/data/6ef741beb/ee707c92fa0f4449b71c39dd486537bf [2020-11-28 03:10:31,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:10:31,208 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:10:31,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:31,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:10:31,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:10:31,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23a396f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31, skipping insertion in model container [2020-11-28 03:10:31,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,223 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:10:31,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:10:31,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:31,382 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:10:31,395 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:31,412 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:10:31,412 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31 WrapperNode [2020-11-28 03:10:31,412 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:31,414 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:31,414 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:10:31,414 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:10:31,426 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,455 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:31,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:10:31,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:10:31,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:10:31,467 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,467 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,468 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... [2020-11-28 03:10:31,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:10:31,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:10:31,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:10:31,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:10:31,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/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 [2020-11-28 03:10:31,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:10:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:10:31,754 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:10:31,754 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-28 03:10:31,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:31 BoogieIcfgContainer [2020-11-28 03:10:31,755 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:10:31,757 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:10:31,757 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:10:31,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:10:31,763 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:31" (1/3) ... [2020-11-28 03:10:31,764 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c4dbae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:31, skipping insertion in model container [2020-11-28 03:10:31,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:31" (2/3) ... [2020-11-28 03:10:31,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42c4dbae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:31, skipping insertion in model container [2020-11-28 03:10:31,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:31" (3/3) ... [2020-11-28 03:10:31,766 INFO L111 eAbstractionObserver]: Analyzing ICFG KroeningSharyginaTsitovichWintersteiger-CAV2010-Fig1.c [2020-11-28 03:10:31,777 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:10:31,781 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-28 03:10:31,792 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-28 03:10:31,815 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:10:31,815 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:10:31,815 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:10:31,816 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:10:31,816 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:10:31,816 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:10:31,816 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:10:31,816 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:10:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 03:10:31,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:10:31,841 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:31,844 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:10:31,844 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:10:31,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:31,850 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-11-28 03:10:31,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:31,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265051789] [2020-11-28 03:10:31,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:31,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:32,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265051789] [2020-11-28 03:10:32,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:32,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:10:32,015 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364406666] [2020-11-28 03:10:32,019 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:32,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:32,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:32,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:32,034 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-11-28 03:10:32,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:32,122 INFO L93 Difference]: Finished difference Result 21 states and 25 transitions. [2020-11-28 03:10:32,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:32,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-28 03:10:32,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:32,134 INFO L225 Difference]: With dead ends: 21 [2020-11-28 03:10:32,134 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 03:10:32,136 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 [2020-11-28 03:10:32,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 03:10:32,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2020-11-28 03:10:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-28 03:10:32,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-11-28 03:10:32,166 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-11-28 03:10:32,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:32,166 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-11-28 03:10:32,166 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:32,167 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-11-28 03:10:32,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:10:32,167 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:32,167 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:10:32,167 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:10:32,168 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:10:32,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,169 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-11-28 03:10:32,169 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,169 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072436140] [2020-11-28 03:10:32,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:32,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:32,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072436140] [2020-11-28 03:10:32,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:32,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 03:10:32,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205845116] [2020-11-28 03:10:32,207 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:32,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:32,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:32,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:32,209 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 4 states. [2020-11-28 03:10:32,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:32,289 INFO L93 Difference]: Finished difference Result 13 states and 16 transitions. [2020-11-28 03:10:32,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:10:32,289 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-28 03:10:32,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:32,290 INFO L225 Difference]: With dead ends: 13 [2020-11-28 03:10:32,290 INFO L226 Difference]: Without dead ends: 12 [2020-11-28 03:10:32,291 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:32,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2020-11-28 03:10:32,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 10. [2020-11-28 03:10:32,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-28 03:10:32,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2020-11-28 03:10:32,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 4 [2020-11-28 03:10:32,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:32,294 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2020-11-28 03:10:32,294 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2020-11-28 03:10:32,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:10:32,294 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:32,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:10:32,295 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:10:32,295 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:10:32,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,297 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-11-28 03:10:32,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022555779] [2020-11-28 03:10:32,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:32,327 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022555779] [2020-11-28 03:10:32,327 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:32,327 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-28 03:10:32,328 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635550763] [2020-11-28 03:10:32,328 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-28 03:10:32,328 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:32,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-28 03:10:32,330 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-28 03:10:32,330 INFO L87 Difference]: Start difference. First operand 10 states and 12 transitions. Second operand 3 states. [2020-11-28 03:10:32,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:32,368 INFO L93 Difference]: Finished difference Result 10 states and 12 transitions. [2020-11-28 03:10:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:10:32,369 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-28 03:10:32,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:32,370 INFO L225 Difference]: With dead ends: 10 [2020-11-28 03:10:32,370 INFO L226 Difference]: Without dead ends: 9 [2020-11-28 03:10:32,371 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 [2020-11-28 03:10:32,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-11-28 03:10:32,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-11-28 03:10:32,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-11-28 03:10:32,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2020-11-28 03:10:32,373 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 5 [2020-11-28 03:10:32,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:32,374 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2020-11-28 03:10:32,374 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-28 03:10:32,374 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2020-11-28 03:10:32,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 03:10:32,374 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:32,375 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 03:10:32,375 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:10:32,375 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 03:10:32,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:32,376 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-11-28 03:10:32,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:32,376 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736599590] [2020-11-28 03:10:32,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:32,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:32,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:10:32,446 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736599590] [2020-11-28 03:10:32,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:32,447 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-28 03:10:32,447 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958550215] [2020-11-28 03:10:32,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:10:32,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:32,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:10:32,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:10:32,449 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 4 states. [2020-11-28 03:10:32,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:32,580 INFO L93 Difference]: Finished difference Result 9 states and 11 transitions. [2020-11-28 03:10:32,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:10:32,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-11-28 03:10:32,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:32,582 INFO L225 Difference]: With dead ends: 9 [2020-11-28 03:10:32,582 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:10:32,582 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:32,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:10:32,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:10:32,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:10:32,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:10:32,583 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-28 03:10:32,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:32,583 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:10:32,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:10:32,584 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:10:32,584 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:10:32,584 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-28 03:10:32,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:10:32,606 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 03:10:32,607 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:10:32,607 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 03:10:32,607 INFO L277 CegarLoopResult]: At program point L27(lines 13 28) the Hoare annotation is: true [2020-11-28 03:10:32,607 INFO L270 CegarLoopResult]: At program point L23-1(lines 17 26) the Hoare annotation is: (< 0 (+ (div ULTIMATE.start_main_~x~0 2) 1073741825)) [2020-11-28 03:10:32,607 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-28 03:10:32,607 INFO L274 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point L17-2(lines 17 26) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-11-28 03:10:32,608 INFO L274 CegarLoopResult]: For program point L18-2(lines 17 26) no Hoare annotation was computed. [2020-11-28 03:10:32,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:32 BoogieIcfgContainer [2020-11-28 03:10:32,623 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:10:32,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:10:32,624 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:10:32,624 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:10:32,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:31" (3/4) ... [2020-11-28 03:10:32,628 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:10:32,641 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-28 03:10:32,641 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:10:32,688 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b2701d5f-86f6-4908-bf8e-3d1370cfd855/bin/uautomizer/witness.graphml [2020-11-28 03:10:32,688 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:10:32,690 INFO L168 Benchmark]: Toolchain (without parser) took 1481.39 ms. Allocated memory is still 100.7 MB. Free memory was 73.8 MB in the beginning and 73.8 MB in the end (delta: -70.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:32,690 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 81.8 MB. Free memory was 39.5 MB in the beginning and 39.4 MB in the end (delta: 40.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:32,691 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.13 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 80.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:32,692 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 100.7 MB. Free memory was 80.1 MB in the beginning and 78.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:32,692 INFO L168 Benchmark]: Boogie Preprocessor took 31.26 ms. Allocated memory is still 100.7 MB. Free memory was 78.8 MB in the beginning and 78.2 MB in the end (delta: 641.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:32,693 INFO L168 Benchmark]: RCFGBuilder took 264.95 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 68.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:32,693 INFO L168 Benchmark]: TraceAbstraction took 865.76 ms. Allocated memory is still 100.7 MB. Free memory was 68.4 MB in the beginning and 76.0 MB in the end (delta: -7.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:32,694 INFO L168 Benchmark]: Witness Printer took 64.55 ms. Allocated memory is still 100.7 MB. Free memory was 76.0 MB in the beginning and 73.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:32,697 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 81.8 MB. Free memory was 39.5 MB in the beginning and 39.4 MB in the end (delta: 40.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 203.13 ms. Allocated memory is still 100.7 MB. Free memory was 73.2 MB in the beginning and 80.1 MB in the end (delta: -7.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 100.7 MB. Free memory was 80.1 MB in the beginning and 78.8 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 31.26 ms. Allocated memory is still 100.7 MB. Free memory was 78.8 MB in the beginning and 78.2 MB in the end (delta: 641.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 264.95 ms. Allocated memory is still 100.7 MB. Free memory was 78.2 MB in the beginning and 68.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 865.76 ms. Allocated memory is still 100.7 MB. Free memory was 68.4 MB in the beginning and 76.0 MB in the end (delta: -7.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 64.55 ms. Allocated memory is still 100.7 MB. Free memory was 76.0 MB in the beginning and 73.8 MB in the end (delta: 2.1 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: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: 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: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 < x / 2 + 1073741825 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 24 SDslu, 12 SDs, 0 SdLazy, 46 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, 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, 4 MinimizatonAttempts, 3 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 3 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 218 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...