./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/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 32bit --witnessprinter.graph.data.programhash d08ec045f3070a7b4be2ee6fb5c0f639f90e227f ....................................................................................................................................................................................................................................... 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 03:06:29,599 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:06:29,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:06:29,666 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:06:29,666 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:06:29,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:06:29,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:06:29,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:06:29,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:06:29,677 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:06:29,678 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:06:29,680 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:06:29,681 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:06:29,682 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:06:29,684 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:06:29,685 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:06:29,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:06:29,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:06:29,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:06:29,693 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:06:29,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:06:29,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:06:29,699 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:06:29,700 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:06:29,704 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:06:29,705 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:06:29,705 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:06:29,707 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:06:29,707 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:06:29,709 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:06:29,709 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:06:29,710 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:06:29,711 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:06:29,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:06:29,714 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:06:29,714 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:06:29,715 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:06:29,715 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:06:29,716 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:06:29,717 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:06:29,718 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:06:29,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:06:29,745 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:06:29,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:06:29,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:06:29,748 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:06:29,748 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:06:29,749 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:06:29,749 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:06:29,750 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:06:29,750 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:06:29,750 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:06:29,751 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:06:29,751 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:06:29,752 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:06:29,752 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:06:29,752 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:06:29,753 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:06:29,753 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:06:29,754 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:06:29,754 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:06:29,754 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:06:29,755 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:06:29,755 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:06:29,756 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:06:29,756 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:06:29,756 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:06:29,756 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:06:29,757 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:06:29,757 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:06:29,757 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:06:29,757 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:06:29,758 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:06:29,758 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_40825f4b-5041-4573-86b6-dcd244c3afe3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d08ec045f3070a7b4be2ee6fb5c0f639f90e227f [2020-11-28 03:06:29,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:06:30,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:06:30,019 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:06:30,020 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:06:30,021 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:06:30,022 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-11-28 03:06:30,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/data/db97b6a65/5755f13def08455c9d4125cd410cb0ab/FLAG5a1b562d2 [2020-11-28 03:06:30,530 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:06:30,530 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-11-28 03:06:30,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/data/db97b6a65/5755f13def08455c9d4125cd410cb0ab/FLAG5a1b562d2 [2020-11-28 03:06:30,935 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/data/db97b6a65/5755f13def08455c9d4125cd410cb0ab [2020-11-28 03:06:30,938 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:06:30,939 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:06:30,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:30,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:06:30,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:06:30,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:30" (1/1) ... [2020-11-28 03:06:30,957 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6686c120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:30, skipping insertion in model container [2020-11-28 03:06:30,957 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:06:30" (1/1) ... [2020-11-28 03:06:30,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:06:30,983 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:06:31,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:31,190 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:06:31,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:06:31,229 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:06:31,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31 WrapperNode [2020-11-28 03:06:31,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:06:31,234 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:31,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:06:31,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:06:31,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:06:31,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:06:31,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:06:31,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:06:31,283 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... [2020-11-28 03:06:31,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:06:31,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:06:31,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:06:31,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:06:31,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/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 03:06:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:06:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:06:31,357 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-28 03:06:31,357 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-28 03:06:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:06:31,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:06:31,743 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:06:31,743 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:06:31,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:31 BoogieIcfgContainer [2020-11-28 03:06:31,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:06:31,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:06:31,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:06:31,751 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:06:31,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:06:30" (1/3) ... [2020-11-28 03:06:31,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58802ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:31, skipping insertion in model container [2020-11-28 03:06:31,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:06:31" (2/3) ... [2020-11-28 03:06:31,753 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58802ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:06:31, skipping insertion in model container [2020-11-28 03:06:31,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:31" (3/3) ... [2020-11-28 03:06:31,755 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2020-11-28 03:06:31,766 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:06:31,770 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-11-28 03:06:31,782 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-11-28 03:06:31,806 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:06:31,807 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:06:31,807 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:06:31,807 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:06:31,807 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:06:31,807 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:06:31,807 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:06:31,808 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:06:31,821 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-28 03:06:31,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:06:31,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-11-28 03:06:31,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:06:31,892 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:06:31,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:06:31,892 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:06:31,892 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-11-28 03:06:31,892 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-11-28 03:06:31,893 INFO L277 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-11-28 03:06:31,893 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-11-28 03:06:31,893 INFO L274 CegarLoopResult]: For program point L14(lines 14 21) no Hoare annotation was computed. [2020-11-28 03:06:31,893 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-11-28 03:06:31,893 INFO L274 CegarLoopResult]: For program point sumEXIT(lines 6 12) no Hoare annotation was computed. [2020-11-28 03:06:31,893 INFO L277 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-11-28 03:06:31,893 INFO L274 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-11-28 03:06:31,893 INFO L274 CegarLoopResult]: For program point L7(lines 7 11) no Hoare annotation was computed. [2020-11-28 03:06:31,894 INFO L274 CegarLoopResult]: For program point sumFINAL(lines 6 12) no Hoare annotation was computed. [2020-11-28 03:06:31,894 INFO L277 CegarLoopResult]: At program point sumENTRY(lines 6 12) the Hoare annotation is: true [2020-11-28 03:06:31,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:06:31 BoogieIcfgContainer [2020-11-28 03:06:31,898 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:06:31,899 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:06:31,899 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:06:31,899 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:06:31,899 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:06:31" (3/4) ... [2020-11-28 03:06:31,903 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:06:31,909 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2020-11-28 03:06:31,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-28 03:06:31,913 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-28 03:06:31,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:06:31,914 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:06:31,962 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_40825f4b-5041-4573-86b6-dcd244c3afe3/bin/uautomizer/witness.graphml [2020-11-28 03:06:31,963 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:06:31,967 INFO L168 Benchmark]: Toolchain (without parser) took 1024.15 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 55.1 MB in the beginning and 67.7 MB in the end (delta: -12.6 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:31,968 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:31,969 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.14 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 55.0 MB in the beginning and 91.4 MB in the end (delta: -36.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:31,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.14 ms. Allocated memory is still 113.2 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:06:31,970 INFO L168 Benchmark]: Boogie Preprocessor took 18.19 ms. Allocated memory is still 113.2 MB. Free memory was 90.2 MB in the beginning and 89.3 MB in the end (delta: 929.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:31,971 INFO L168 Benchmark]: RCFGBuilder took 451.88 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 78.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:31,972 INFO L168 Benchmark]: TraceAbstraction took 150.87 ms. Allocated memory is still 113.2 MB. Free memory was 77.6 MB in the beginning and 69.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:31,972 INFO L168 Benchmark]: Witness Printer took 64.13 ms. Allocated memory is still 113.2 MB. Free memory was 69.8 MB in the beginning and 67.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:06:31,982 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 43.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 280.14 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 55.0 MB in the beginning and 91.4 MB in the end (delta: -36.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.14 ms. Allocated memory is still 113.2 MB. Free memory was 91.4 MB in the beginning and 90.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.19 ms. Allocated memory is still 113.2 MB. Free memory was 90.2 MB in the beginning and 89.3 MB in the end (delta: 929.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 451.88 ms. Allocated memory is still 113.2 MB. Free memory was 89.3 MB in the beginning and 78.2 MB in the end (delta: 11.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 150.87 ms. Allocated memory is still 113.2 MB. Free memory was 77.6 MB in the beginning and 69.8 MB in the end (delta: 7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 64.13 ms. Allocated memory is still 113.2 MB. Free memory was 69.8 MB in the beginning and 67.7 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: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 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: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...