./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_o20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_o20.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI --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 a54fd98af675d3e485f3e615c8444fd8c5970ebc ............................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 02:29:50,517 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:29:50,519 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:29:50,555 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:29:50,556 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:29:50,557 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:29:50,559 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:29:50,562 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:29:50,565 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:29:50,566 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:29:50,567 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:29:50,569 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:29:50,570 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:29:50,571 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:29:50,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:29:50,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:29:50,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:29:50,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:29:50,580 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:29:50,583 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:29:50,585 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:29:50,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:29:50,590 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:29:50,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:29:50,596 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:29:50,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:29:50,597 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:29:50,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:29:50,599 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:29:50,600 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:29:50,601 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:29:50,602 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:29:50,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:29:50,613 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:29:50,617 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:29:50,617 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:29:50,618 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:29:50,618 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:29:50,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:29:50,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:29:50,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:29:50,625 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-11 02:29:50,672 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:29:50,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:29:50,674 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:29:50,674 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:29:50,675 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:29:50,675 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:29:50,675 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:29:50,675 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:29:50,675 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:29:50,676 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:29:50,683 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:29:50,683 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:29:50,683 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:29:50,683 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:29:50,684 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:29:50,684 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:29:50,685 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:29:50,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:29:50,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:29:50,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:29:50,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:29:50,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:29:50,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:29:50,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:29:50,686 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:29:50,686 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:29:50,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:29:50,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:29:50,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:29:50,689 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:29:50,689 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:29:50,690 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:29:50,690 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:29:50,690 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:29:50,690 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:29:50,691 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:29:50,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:29:50,691 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:29:50,691 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:29:50,691 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:29:50,692 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_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a54fd98af675d3e485f3e615c8444fd8c5970ebc [2021-10-11 02:29:50,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:29:50,984 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:29:50,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:29:50,990 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:29:50,991 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:29:50,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/recursive-simple/id_o20.c [2021-10-11 02:29:51,081 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/data/7fe43c458/08bd868c6716417f85d4812150436c8c/FLAGbcddf072e [2021-10-11 02:29:51,519 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:29:51,520 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/sv-benchmarks/c/recursive-simple/id_o20.c [2021-10-11 02:29:51,525 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/data/7fe43c458/08bd868c6716417f85d4812150436c8c/FLAGbcddf072e [2021-10-11 02:29:51,903 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/data/7fe43c458/08bd868c6716417f85d4812150436c8c [2021-10-11 02:29:51,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:29:51,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:29:51,910 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:51,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:29:51,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:29:51,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:51" (1/1) ... [2021-10-11 02:29:51,922 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f6c9435 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:51, skipping insertion in model container [2021-10-11 02:29:51,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:29:51" (1/1) ... [2021-10-11 02:29:51,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:29:51,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:29:52,120 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2021-10-11 02:29:52,120 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:52,129 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:29:52,140 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/sv-benchmarks/c/recursive-simple/id_o20.c[516,529] [2021-10-11 02:29:52,141 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:29:52,154 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:29:52,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52 WrapperNode [2021-10-11 02:29:52,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:29:52,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:52,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:29:52,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:29:52,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:29:52,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:29:52,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:29:52,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:29:52,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,195 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,200 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... [2021-10-11 02:29:52,202 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:29:52,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:29:52,203 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:29:52,203 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:29:52,204 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/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 [2021-10-11 02:29:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:29:52,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:29:52,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:29:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-11 02:29:52,284 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-11 02:29:52,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:29:52,508 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:29:52,508 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:29:52,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:52 BoogieIcfgContainer [2021-10-11 02:29:52,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:29:52,512 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:29:52,512 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:29:52,529 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:29:52,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:29:51" (1/3) ... [2021-10-11 02:29:52,530 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d66fdaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:52, skipping insertion in model container [2021-10-11 02:29:52,530 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:29:52" (2/3) ... [2021-10-11 02:29:52,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d66fdaf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:29:52, skipping insertion in model container [2021-10-11 02:29:52,531 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:52" (3/3) ... [2021-10-11 02:29:52,532 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o20.c [2021-10-11 02:29:52,554 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:29:52,573 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2021-10-11 02:29:52,584 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2021-10-11 02:29:52,608 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:29:52,608 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:29:52,609 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:29:52,609 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:29:52,609 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:29:52,609 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:29:52,609 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:29:52,610 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:29:52,639 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2021-10-11 02:29:52,659 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:29:52,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2021-10-11 02:29:52,728 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:29:52,728 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:29:52,728 INFO L265 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2021-10-11 02:29:52,728 INFO L262 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2021-10-11 02:29:52,729 INFO L262 CegarLoopResult]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2021-10-11 02:29:52,729 INFO L262 CegarLoopResult]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2021-10-11 02:29:52,729 INFO L265 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2021-10-11 02:29:52,729 INFO L265 CegarLoopResult]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2021-10-11 02:29:52,729 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 02:29:52,729 INFO L262 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-10-11 02:29:52,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:29:52 BoogieIcfgContainer [2021-10-11 02:29:52,733 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:29:52,734 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:29:52,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:29:52,735 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:29:52,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:29:52" (3/4) ... [2021-10-11 02:29:52,739 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:29:52,746 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-10-11 02:29:52,750 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:29:52,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:29:52,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:29:52,751 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:29:52,788 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e623f7b0-68a3-4202-811c-7eb65b8ad439/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:29:52,788 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:29:52,790 INFO L168 Benchmark]: Toolchain (without parser) took 883.62 ms. Allocated memory is still 117.4 MB. Free memory was 82.5 MB in the beginning and 67.7 MB in the end (delta: 14.9 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:52,791 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 51.2 MB in the beginning and 51.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:52,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 244.30 ms. Allocated memory is still 117.4 MB. Free memory was 82.5 MB in the beginning and 93.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:52,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.78 ms. Allocated memory is still 117.4 MB. Free memory was 93.4 MB in the beginning and 92.6 MB in the end (delta: 874.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:29:52,793 INFO L168 Benchmark]: Boogie Preprocessor took 18.17 ms. Allocated memory is still 117.4 MB. Free memory was 92.6 MB in the beginning and 91.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:52,794 INFO L168 Benchmark]: RCFGBuilder took 307.67 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 77.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:52,795 INFO L168 Benchmark]: TraceAbstraction took 221.52 ms. Allocated memory is still 117.4 MB. Free memory was 77.3 MB in the beginning and 69.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:29:52,796 INFO L168 Benchmark]: Witness Printer took 53.80 ms. Allocated memory is still 117.4 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. [2021-10-11 02:29:52,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 77.6 MB. Free memory was 51.2 MB in the beginning and 51.2 MB in the end (delta: 28.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 244.30 ms. Allocated memory is still 117.4 MB. Free memory was 82.5 MB in the beginning and 93.4 MB in the end (delta: -10.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 27.78 ms. Allocated memory is still 117.4 MB. Free memory was 93.4 MB in the beginning and 92.6 MB in the end (delta: 874.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.17 ms. Allocated memory is still 117.4 MB. Free memory was 92.6 MB in the beginning and 91.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 307.67 ms. Allocated memory is still 117.4 MB. Free memory was 91.3 MB in the beginning and 77.9 MB in the end (delta: 13.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 221.52 ms. Allocated memory is still 117.4 MB. Free memory was 77.3 MB in the beginning and 69.8 MB in the end (delta: 7.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Witness Printer took 53.80 ms. Allocated memory is still 117.4 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, 10 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=10occurred 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...