./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id2_b3_o2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id2_b3_o2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22bfff7e0bc9ff374f4201c2281f2aec36cb181e ..................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-03 12:35:36,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-03 12:35:36,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-03 12:35:36,536 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-03 12:35:36,540 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-03 12:35:36,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-03 12:35:36,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-03 12:35:36,559 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-03 12:35:36,563 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-03 12:35:36,570 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-03 12:35:36,571 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-03 12:35:36,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-03 12:35:36,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-03 12:35:36,579 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-03 12:35:36,581 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-03 12:35:36,583 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-03 12:35:36,584 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-03 12:35:36,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-03 12:35:36,592 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-03 12:35:36,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-03 12:35:36,603 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-03 12:35:36,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-03 12:35:36,607 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-03 12:35:36,609 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-03 12:35:36,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-03 12:35:36,619 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-03 12:35:36,619 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-03 12:35:36,621 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-03 12:35:36,622 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-03 12:35:36,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-03 12:35:36,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-03 12:35:36,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-03 12:35:36,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-03 12:35:36,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-03 12:35:36,632 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-03 12:35:36,632 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-03 12:35:36,633 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-03 12:35:36,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-03 12:35:36,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-03 12:35:36,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-03 12:35:36,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-03 12:35:36,639 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-12-03 12:35:36,687 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-03 12:35:36,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-03 12:35:36,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-03 12:35:36,689 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-03 12:35:36,689 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-03 12:35:36,690 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-03 12:35:36,690 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-03 12:35:36,690 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-03 12:35:36,690 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-03 12:35:36,691 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-03 12:35:36,692 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-03 12:35:36,692 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-03 12:35:36,693 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-03 12:35:36,693 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-03 12:35:36,693 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-03 12:35:36,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-03 12:35:36,694 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-03 12:35:36,694 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-03 12:35:36,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-03 12:35:36,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-03 12:35:36,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-03 12:35:36,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-03 12:35:36,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-03 12:35:36,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-03 12:35:36,696 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-03 12:35:36,696 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-03 12:35:36,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-03 12:35:36,697 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-03 12:35:36,697 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-03 12:35:36,697 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-03 12:35:36,698 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-03 12:35:36,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-03 12:35:36,698 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-03 12:35:36,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-03 12:35:36,699 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-03 12:35:36,699 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-03 12:35:36,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-03 12:35:36,700 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-03 12:35:36,700 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-03 12:35:36,700 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-03 12:35:36,700 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22bfff7e0bc9ff374f4201c2281f2aec36cb181e [2020-12-03 12:35:37,045 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-03 12:35:37,082 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-03 12:35:37,085 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-03 12:35:37,087 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-03 12:35:37,088 INFO L275 PluginConnector]: CDTParser initialized [2020-12-03 12:35:37,089 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/../../sv-benchmarks/c/recursive-simple/id2_b3_o2.c [2020-12-03 12:35:37,166 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/data/f9d754a9a/ede57be0729c465293860571eee65c23/FLAG11e36a2a4 [2020-12-03 12:35:37,737 INFO L306 CDTParser]: Found 1 translation units. [2020-12-03 12:35:37,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/sv-benchmarks/c/recursive-simple/id2_b3_o2.c [2020-12-03 12:35:37,744 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/data/f9d754a9a/ede57be0729c465293860571eee65c23/FLAG11e36a2a4 [2020-12-03 12:35:38,083 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/data/f9d754a9a/ede57be0729c465293860571eee65c23 [2020-12-03 12:35:38,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-03 12:35:38,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-03 12:35:38,090 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-03 12:35:38,090 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-03 12:35:38,094 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-03 12:35:38,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,097 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1be51524 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38, skipping insertion in model container [2020-12-03 12:35:38,097 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,106 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-03 12:35:38,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-03 12:35:38,308 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/sv-benchmarks/c/recursive-simple/id2_b3_o2.c[771,784] [2020-12-03 12:35:38,316 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:35:38,325 INFO L203 MainTranslator]: Completed pre-run [2020-12-03 12:35:38,341 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/sv-benchmarks/c/recursive-simple/id2_b3_o2.c[771,784] [2020-12-03 12:35:38,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-03 12:35:38,355 INFO L208 MainTranslator]: Completed translation [2020-12-03 12:35:38,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38 WrapperNode [2020-12-03 12:35:38,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-03 12:35:38,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-03 12:35:38,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-03 12:35:38,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-03 12:35:38,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,388 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-03 12:35:38,389 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-03 12:35:38,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-03 12:35:38,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-03 12:35:38,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... [2020-12-03 12:35:38,408 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-03 12:35:38,409 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-03 12:35:38,409 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-03 12:35:38,409 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-03 12:35:38,411 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/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 [2020-12-03 12:35:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-03 12:35:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-03 12:35:38,493 INFO L130 BoogieDeclarations]: Found specification of procedure id2 [2020-12-03 12:35:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure id2 [2020-12-03 12:35:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-03 12:35:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-03 12:35:38,494 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-12-03 12:35:38,494 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-12-03 12:35:38,781 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-03 12:35:38,781 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-03 12:35:38,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:35:38 BoogieIcfgContainer [2020-12-03 12:35:38,784 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-03 12:35:38,786 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-03 12:35:38,786 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-03 12:35:38,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-03 12:35:38,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 12:35:38" (1/3) ... [2020-12-03 12:35:38,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61466704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:35:38, skipping insertion in model container [2020-12-03 12:35:38,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 12:35:38" (2/3) ... [2020-12-03 12:35:38,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61466704 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 12:35:38, skipping insertion in model container [2020-12-03 12:35:38,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:35:38" (3/3) ... [2020-12-03 12:35:38,794 INFO L111 eAbstractionObserver]: Analyzing ICFG id2_b3_o2.c [2020-12-03 12:35:38,809 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-03 12:35:38,813 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-12-03 12:35:38,825 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-12-03 12:35:38,853 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-03 12:35:38,854 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-03 12:35:38,854 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-03 12:35:38,854 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-03 12:35:38,854 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-03 12:35:38,854 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-03 12:35:38,855 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-03 12:35:38,855 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-03 12:35:38,872 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-12-03 12:35:38,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-03 12:35:38,883 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-12-03 12:35:38,933 INFO L262 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-12-03 12:35:38,933 INFO L262 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-12-03 12:35:38,933 INFO L262 CegarLoopResult]: For program point id2EXIT(lines 16 21) no Hoare annotation was computed. [2020-12-03 12:35:38,934 INFO L265 CegarLoopResult]: At program point id2ENTRY(lines 16 21) the Hoare annotation is: true [2020-12-03 12:35:38,934 INFO L262 CegarLoopResult]: For program point id2FINAL(lines 16 21) no Hoare annotation was computed. [2020-12-03 12:35:38,934 INFO L265 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-12-03 12:35:38,934 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-03 12:35:38,935 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-03 12:35:38,935 INFO L265 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-12-03 12:35:38,935 INFO L262 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-12-03 12:35:38,935 INFO L262 CegarLoopResult]: For program point idFINAL(lines 9 14) no Hoare annotation was computed. [2020-12-03 12:35:38,935 INFO L265 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-12-03 12:35:38,936 INFO L262 CegarLoopResult]: For program point idEXIT(lines 9 14) no Hoare annotation was computed. [2020-12-03 12:35:38,936 INFO L262 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-12-03 12:35:38,936 INFO L262 CegarLoopResult]: For program point L11-1(line 11) no Hoare annotation was computed. [2020-12-03 12:35:38,936 INFO L265 CegarLoopResult]: At program point idENTRY(lines 9 14) the Hoare annotation is: true [2020-12-03 12:35:38,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 12:35:38 BoogieIcfgContainer [2020-12-03 12:35:38,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-03 12:35:38,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-03 12:35:38,942 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-03 12:35:38,942 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-03 12:35:38,943 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 12:35:38" (3/4) ... [2020-12-03 12:35:38,946 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-03 12:35:38,953 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id2 [2020-12-03 12:35:38,954 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-12-03 12:35:38,959 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-12-03 12:35:38,959 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-03 12:35:38,960 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-03 12:35:38,960 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-03 12:35:39,015 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ec24bd8f-863a-4588-a893-661c706c158a/bin/utaipan/witness.graphml [2020-12-03 12:35:39,015 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-03 12:35:39,025 INFO L168 Benchmark]: Toolchain (without parser) took 928.99 ms. Allocated memory is still 107.0 MB. Free memory was 79.6 MB in the beginning and 53.6 MB in the end (delta: 26.0 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:39,026 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 52.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:35:39,027 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.62 ms. Allocated memory is still 107.0 MB. Free memory was 79.3 MB in the beginning and 83.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:39,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.71 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-03 12:35:39,029 INFO L168 Benchmark]: Boogie Preprocessor took 19.60 ms. Allocated memory is still 107.0 MB. Free memory was 82.3 MB in the beginning and 81.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:39,030 INFO L168 Benchmark]: RCFGBuilder took 375.08 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 64.7 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:39,035 INFO L168 Benchmark]: TraceAbstraction took 155.15 ms. Allocated memory is still 107.0 MB. Free memory was 64.4 MB in the beginning and 56.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:39,036 INFO L168 Benchmark]: Witness Printer took 74.12 ms. Allocated memory is still 107.0 MB. Free memory was 56.1 MB in the beginning and 53.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-03 12:35:39,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 107.0 MB. Free memory was 67.0 MB in the beginning and 66.9 MB in the end (delta: 52.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.62 ms. Allocated memory is still 107.0 MB. Free memory was 79.3 MB in the beginning and 83.6 MB in the end (delta: -4.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 30.71 ms. Allocated memory is still 107.0 MB. Free memory was 83.6 MB in the beginning and 82.3 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.60 ms. Allocated memory is still 107.0 MB. Free memory was 82.3 MB in the beginning and 81.2 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 375.08 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 64.7 MB in the end (delta: 16.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 155.15 ms. Allocated memory is still 107.0 MB. Free memory was 64.4 MB in the beginning and 56.1 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 74.12 ms. Allocated memory is still 107.0 MB. Free memory was 56.1 MB in the beginning and 53.6 MB in the end (delta: 2.5 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 3 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, 5 LocationsWithAnnotation, 7 PreInvPairs, 7 NumberOfFragments, 5 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 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...