./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.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_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/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_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/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_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/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 f919edf50b278085ea884360d609205059ef996b .................................................................................................................................................................................................................................................................................................................................................................................. 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 02:25:29,963 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:25:29,965 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:25:29,997 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:25:29,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:25:29,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:25:30,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:25:30,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:25:30,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:25:30,009 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:25:30,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:25:30,012 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:25:30,013 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:25:30,015 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:25:30,016 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:25:30,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:25:30,020 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:25:30,021 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:25:30,024 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:25:30,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:25:30,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:25:30,031 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:25:30,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:25:30,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:25:30,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:25:30,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:25:30,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:25:30,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:25:30,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:25:30,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:25:30,044 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:25:30,045 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:25:30,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:25:30,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:25:30,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:25:30,050 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:25:30,051 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:25:30,051 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:25:30,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:25:30,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:25:30,054 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:25:30,056 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/config/svcomp-Overflow-32bit-Taipan_Default.epf [2021-10-11 02:25:30,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:25:30,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:25:30,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:25:30,084 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:25:30,085 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:25:30,085 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:25:30,085 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:25:30,085 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:25:30,086 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:25:30,086 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:25:30,086 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:25:30,086 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:25:30,087 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:25:30,087 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:25:30,087 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:25:30,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:25:30,088 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:25:30,088 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-11 02:25:30,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:25:30,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:25:30,089 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:25:30,089 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:25:30,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:25:30,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:25:30,090 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2021-10-11 02:25:30,090 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:25:30,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:25:30,091 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:25:30,091 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:25:30,091 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:25:30,092 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:25:30,092 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:25:30,092 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:25:30,092 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:25:30,093 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:25:30,093 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:25:30,093 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:25:30,093 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:25:30,094 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:25:30,094 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:25:30,094 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_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f919edf50b278085ea884360d609205059ef996b [2021-10-11 02:25:30,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:25:30,434 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:25:30,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:25:30,443 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:25:30,444 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:25:30,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2021-10-11 02:25:30,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/data/10aaaf342/0a11faec668f4a4687163d3b467d7a11/FLAGcab8737cf [2021-10-11 02:25:31,078 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:25:31,079 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c [2021-10-11 02:25:31,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/data/10aaaf342/0a11faec668f4a4687163d3b467d7a11/FLAGcab8737cf [2021-10-11 02:25:31,432 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/data/10aaaf342/0a11faec668f4a4687163d3b467d7a11 [2021-10-11 02:25:31,435 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:25:31,439 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:25:31,444 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:31,444 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:25:31,449 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:25:31,450 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,453 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ccb836a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31, skipping insertion in model container [2021-10-11 02:25:31,453 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:25:31,483 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:25:31,709 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_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c[528,541] [2021-10-11 02:25:31,710 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:31,720 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:25:31,736 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_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/sv-benchmarks/c/recursive-simple/id_b3_o2-2.c[528,541] [2021-10-11 02:25:31,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:25:31,758 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:25:31,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31 WrapperNode [2021-10-11 02:25:31,761 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:25:31,763 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:31,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:25:31,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:25:31,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,795 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,817 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:25:31,819 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:25:31,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:25:31,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:25:31,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,830 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,832 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,832 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... [2021-10-11 02:25:31,841 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:25:31,842 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:25:31,842 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:25:31,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:25:31,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/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 02:25:31,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:25:31,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:25:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:25:31,945 INFO L130 BoogieDeclarations]: Found specification of procedure id [2021-10-11 02:25:31,945 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2021-10-11 02:25:31,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:25:32,261 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:25:32,261 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:25:32,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:32 BoogieIcfgContainer [2021-10-11 02:25:32,264 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:25:32,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:25:32,266 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:25:32,270 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:25:32,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:25:31" (1/3) ... [2021-10-11 02:25:32,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662c4a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:32, skipping insertion in model container [2021-10-11 02:25:32,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:25:31" (2/3) ... [2021-10-11 02:25:32,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@662c4a17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:25:32, skipping insertion in model container [2021-10-11 02:25:32,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:32" (3/3) ... [2021-10-11 02:25:32,274 INFO L111 eAbstractionObserver]: Analyzing ICFG id_b3_o2-2.c [2021-10-11 02:25:32,288 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:25:32,292 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-10-11 02:25:32,304 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-11 02:25:32,331 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:25:32,332 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:25:32,332 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:25:32,332 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:25:32,332 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:25:32,332 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:25:32,333 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:25:32,333 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:25:32,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2021-10-11 02:25:32,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:25:32,354 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:32,355 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:32,356 INFO L429 AbstractCegarLoop]: === Iteration 1 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:25:32,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:32,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1239793480, now seen corresponding path program 1 times [2021-10-11 02:25:32,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:32,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122667419] [2021-10-11 02:25:32,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:32,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:32,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-11 02:25:32,658 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122667419] [2021-10-11 02:25:32,659 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:32,659 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:25:32,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336634825] [2021-10-11 02:25:32,665 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:32,665 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:32,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:32,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:32,682 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 4 states. [2021-10-11 02:25:32,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:32,825 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2021-10-11 02:25:32,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:32,828 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:25:32,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:32,836 INFO L225 Difference]: With dead ends: 21 [2021-10-11 02:25:32,836 INFO L226 Difference]: Without dead ends: 17 [2021-10-11 02:25:32,839 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:25:32,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-11 02:25:32,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-11 02:25:32,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2021-10-11 02:25:32,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2021-10-11 02:25:32,876 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2021-10-11 02:25:32,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:32,876 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2021-10-11 02:25:32,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:32,877 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2021-10-11 02:25:32,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-10-11 02:25:32,878 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:32,878 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2021-10-11 02:25:32,878 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:25:32,879 INFO L429 AbstractCegarLoop]: === Iteration 2 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:25:32,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:32,880 INFO L82 PathProgramCache]: Analyzing trace with hash -275034106, now seen corresponding path program 1 times [2021-10-11 02:25:32,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:32,881 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914331841] [2021-10-11 02:25:32,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:32,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:32,990 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 02:25:32,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914331841] [2021-10-11 02:25:32,991 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026887900] [2021-10-11 02:25:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-11 02:25:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:33,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-11 02:25:33,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-11 02:25:33,214 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2021-10-11 02:25:33,231 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 02:25:33,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-11 02:25:33,413 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-10-11 02:25:33,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2021-10-11 02:25:33,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 5] total 9 [2021-10-11 02:25:33,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988725789] [2021-10-11 02:25:33,417 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:25:33,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:33,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:25:33,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:25:33,433 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 4 states. [2021-10-11 02:25:33,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:33,456 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-10-11 02:25:33,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:25:33,456 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2021-10-11 02:25:33,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:33,459 INFO L225 Difference]: With dead ends: 17 [2021-10-11 02:25:33,459 INFO L226 Difference]: Without dead ends: 16 [2021-10-11 02:25:33,462 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2021-10-11 02:25:33,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-10-11 02:25:33,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-10-11 02:25:33,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2021-10-11 02:25:33,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2021-10-11 02:25:33,474 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 22 [2021-10-11 02:25:33,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:33,475 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2021-10-11 02:25:33,475 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:25:33,476 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2021-10-11 02:25:33,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-11 02:25:33,477 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:25:33,477 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1] [2021-10-11 02:25:33,693 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-10-11 02:25:33,693 INFO L429 AbstractCegarLoop]: === Iteration 3 === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2021-10-11 02:25:33,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:25:33,694 INFO L82 PathProgramCache]: Analyzing trace with hash 63877361, now seen corresponding path program 1 times [2021-10-11 02:25:33,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:25:33,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280085750] [2021-10-11 02:25:33,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:25:33,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:25:33,765 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2021-10-11 02:25:33,765 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280085750] [2021-10-11 02:25:33,765 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:25:33,766 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:25:33,766 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655309543] [2021-10-11 02:25:33,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:25:33,766 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:25:33,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:25:33,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:33,768 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 3 states. [2021-10-11 02:25:33,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:25:33,773 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2021-10-11 02:25:33,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:25:33,774 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2021-10-11 02:25:33,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:25:33,774 INFO L225 Difference]: With dead ends: 16 [2021-10-11 02:25:33,774 INFO L226 Difference]: Without dead ends: 0 [2021-10-11 02:25:33,775 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:25:33,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-11 02:25:33,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-11 02:25:33,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-10-11 02:25:33,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-11 02:25:33,776 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2021-10-11 02:25:33,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:25:33,776 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-11 02:25:33,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:25:33,777 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-11 02:25:33,777 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-11 02:25:33,777 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:25:33,779 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-11 02:25:33,796 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-11 02:25:33,796 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-11 02:25:33,797 INFO L265 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2021-10-11 02:25:33,797 INFO L262 CegarLoopResult]: For program point L15-1(line 15) no Hoare annotation was computed. [2021-10-11 02:25:33,797 INFO L262 CegarLoopResult]: For program point idFINAL(lines 6 11) no Hoare annotation was computed. [2021-10-11 02:25:33,797 INFO L262 CegarLoopResult]: For program point idEXIT(lines 6 11) no Hoare annotation was computed. [2021-10-11 02:25:33,797 INFO L265 CegarLoopResult]: At program point idENTRY(lines 6 11) the Hoare annotation is: true [2021-10-11 02:25:33,797 INFO L262 CegarLoopResult]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2021-10-11 02:25:33,798 INFO L262 CegarLoopResult]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2021-10-11 02:25:33,798 INFO L265 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2021-10-11 02:25:33,798 INFO L262 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2021-10-11 02:25:33,798 INFO L262 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2021-10-11 02:25:33,798 INFO L262 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2021-10-11 02:25:33,798 INFO L262 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2021-10-11 02:25:33,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:25:33 BoogieIcfgContainer [2021-10-11 02:25:33,804 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:25:33,805 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:25:33,806 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:25:33,806 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:25:33,806 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:25:32" (3/4) ... [2021-10-11 02:25:33,811 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-11 02:25:33,817 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2021-10-11 02:25:33,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-11 02:25:33,823 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-11 02:25:33,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-11 02:25:33,824 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-11 02:25:33,865 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f7f12ed8-abb6-4151-b8f4-a1eaf9a8214d/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:25:33,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:25:33,868 INFO L168 Benchmark]: Toolchain (without parser) took 2427.27 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 64.5 MB in the beginning and 91.1 MB in the end (delta: -26.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,868 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 96.5 MB. Free memory was 53.2 MB in the beginning and 53.1 MB in the end (delta: 43.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:33,869 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.18 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 64.3 MB in the beginning and 107.1 MB in the end (delta: -42.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.31 ms. Allocated memory is still 130.0 MB. Free memory was 107.1 MB in the beginning and 105.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,871 INFO L168 Benchmark]: Boogie Preprocessor took 22.20 ms. Allocated memory is still 130.0 MB. Free memory was 105.7 MB in the beginning and 105.0 MB in the end (delta: 741.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:33,871 INFO L168 Benchmark]: RCFGBuilder took 422.26 ms. Allocated memory is still 130.0 MB. Free memory was 105.0 MB in the beginning and 89.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,872 INFO L168 Benchmark]: TraceAbstraction took 1538.42 ms. Allocated memory is still 130.0 MB. Free memory was 89.0 MB in the beginning and 93.2 MB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:25:33,873 INFO L168 Benchmark]: Witness Printer took 60.31 ms. Allocated memory is still 130.0 MB. Free memory was 93.2 MB in the beginning and 91.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 02:25:33,877 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 96.5 MB. Free memory was 53.2 MB in the beginning and 53.1 MB in the end (delta: 43.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 318.18 ms. Allocated memory was 96.5 MB in the beginning and 130.0 MB in the end (delta: 33.6 MB). Free memory was 64.3 MB in the beginning and 107.1 MB in the end (delta: -42.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.31 ms. Allocated memory is still 130.0 MB. Free memory was 107.1 MB in the beginning and 105.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.20 ms. Allocated memory is still 130.0 MB. Free memory was 105.7 MB in the beginning and 105.0 MB in the end (delta: 741.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 422.26 ms. Allocated memory is still 130.0 MB. Free memory was 105.0 MB in the beginning and 89.5 MB in the end (delta: 15.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1538.42 ms. Allocated memory is still 130.0 MB. Free memory was 89.0 MB in the beginning and 93.2 MB in the end (delta: -4.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 60.31 ms. Allocated memory is still 130.0 MB. Free memory was 93.2 MB in the beginning and 91.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 4, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 3 SDslu, 42 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, 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: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 95 ConstructedInterpolants, 0 QuantifiedInterpolants, 3087 SizeOfPredicates, 1 NumberOfNonLiveVariables, 80 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 71/79 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...