./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/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 64bit --witnessprinter.graph.data.programhash 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 ........................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 08:49:49,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:49:49,082 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:49:49,109 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:49:49,110 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:49:49,111 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:49:49,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:49:49,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:49:49,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:49:49,124 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:49:49,125 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:49:49,126 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:49:49,126 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:49:49,128 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:49:49,129 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:49:49,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:49:49,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:49:49,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:49:49,134 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:49:49,136 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:49:49,138 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:49:49,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:49:49,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:49:49,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:49:49,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:49:49,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:49:49,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:49:49,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:49:49,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:49:49,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:49:49,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:49:49,149 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:49:49,150 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:49:49,151 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:49:49,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:49:49,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:49:49,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:49:49,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:49:49,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:49:49,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:49:49,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:49:49,154 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 08:49:49,170 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:49:49,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:49:49,171 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:49:49,171 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:49:49,171 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:49:49,171 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:49:49,171 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 08:49:49,171 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:49:49,172 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:49:49,172 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 08:49:49,172 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 08:49:49,172 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:49:49,172 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 08:49:49,172 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 08:49:49,172 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 08:49:49,173 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:49:49,173 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 08:49:49,173 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 08:49:49,173 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:49:49,173 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 08:49:49,173 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:49:49,173 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 08:49:49,174 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 08:49:49,174 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 08:49:49,174 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:49:49,174 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 08:49:49,174 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:49:49,174 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:49:49,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:49:49,175 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:49:49,175 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:49:49,175 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 08:49:49,175 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 08:49:49,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 08:49:49,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 08:49:49,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:49:49,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:49:49,175 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_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9382426e0298eea8efda3bbcf0c2ed9d078bc5a4 [2020-12-09 08:49:49,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:49:49,385 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:49:49,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:49:49,387 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:49:49,388 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:49:49,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/../../sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2020-12-09 08:49:49,433 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/data/e406180c3/d9cff067c64c4c96aa64453e34c56df2/FLAGa5f0addb9 [2020-12-09 08:49:49,789 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:49:49,789 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/sv-benchmarks/c/termination-crafted/Bangalore_v4.c [2020-12-09 08:49:49,794 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/data/e406180c3/d9cff067c64c4c96aa64453e34c56df2/FLAGa5f0addb9 [2020-12-09 08:49:49,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/data/e406180c3/d9cff067c64c4c96aa64453e34c56df2 [2020-12-09 08:49:49,804 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:49:49,805 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:49:49,806 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:49:49,806 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:49:49,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:49:49,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d703dc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49, skipping insertion in model container [2020-12-09 08:49:49,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:49:49,823 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:49:49,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:49:49,909 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:49:49,918 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:49:49,926 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:49:49,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49 WrapperNode [2020-12-09 08:49:49,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:49:49,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:49:49,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:49:49,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:49:49,933 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,936 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,947 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:49:49,948 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:49:49,948 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:49:49,948 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:49:49,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,954 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,955 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,958 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,958 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... [2020-12-09 08:49:49,959 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:49:49,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:49:49,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:49:49,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:49:49,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/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 [2020-12-09 08:49:50,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:49:50,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:49:50,121 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:49:50,121 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-09 08:49:50,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:49:50 BoogieIcfgContainer [2020-12-09 08:49:50,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:49:50,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:49:50,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:49:50,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:49:50,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:49:49" (1/3) ... [2020-12-09 08:49:50,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7425f4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:49:50, skipping insertion in model container [2020-12-09 08:49:50,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:49:49" (2/3) ... [2020-12-09 08:49:50,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7425f4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:49:50, skipping insertion in model container [2020-12-09 08:49:50,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:49:50" (3/3) ... [2020-12-09 08:49:50,129 INFO L111 eAbstractionObserver]: Analyzing ICFG Bangalore_v4.c [2020-12-09 08:49:50,140 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:49:50,142 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 08:49:50,150 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 08:49:50,169 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:49:50,169 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 08:49:50,169 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:49:50,169 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:49:50,169 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:49:50,169 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:49:50,170 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:49:50,170 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:49:50,180 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 08:49:50,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 08:49:50,184 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:49:50,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 08:49:50,185 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 08:49:50,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:49:50,189 INFO L82 PathProgramCache]: Analyzing trace with hash 957573, now seen corresponding path program 1 times [2020-12-09 08:49:50,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:49:50,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953692601] [2020-12-09 08:49:50,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:49:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:49:50,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:49:50,298 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953692601] [2020-12-09 08:49:50,298 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:49:50,299 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:49:50,299 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748098734] [2020-12-09 08:49:50,302 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:49:50,303 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:49:50,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:49:50,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:49:50,314 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 08:49:50,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:49:50,346 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2020-12-09 08:49:50,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:49:50,347 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-12-09 08:49:50,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:49:50,353 INFO L225 Difference]: With dead ends: 15 [2020-12-09 08:49:50,353 INFO L226 Difference]: Without dead ends: 10 [2020-12-09 08:49:50,355 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:49:50,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-12-09 08:49:50,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2020-12-09 08:49:50,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-12-09 08:49:50,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-12-09 08:49:50,378 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 4 [2020-12-09 08:49:50,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:49:50,378 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-12-09 08:49:50,378 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:49:50,378 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-12-09 08:49:50,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 08:49:50,378 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:49:50,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 08:49:50,379 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 08:49:50,379 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 08:49:50,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:49:50,380 INFO L82 PathProgramCache]: Analyzing trace with hash 29684810, now seen corresponding path program 1 times [2020-12-09 08:49:50,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:49:50,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306133078] [2020-12-09 08:49:50,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:49:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:49:50,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:49:50,406 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306133078] [2020-12-09 08:49:50,406 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:49:50,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:49:50,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094601118] [2020-12-09 08:49:50,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 08:49:50,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:49:50,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 08:49:50,409 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-09 08:49:50,409 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-12-09 08:49:50,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:49:50,447 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2020-12-09 08:49:50,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 08:49:50,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-12-09 08:49:50,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:49:50,448 INFO L225 Difference]: With dead ends: 9 [2020-12-09 08:49:50,448 INFO L226 Difference]: Without dead ends: 8 [2020-12-09 08:49:50,449 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:49:50,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-12-09 08:49:50,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-12-09 08:49:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-12-09 08:49:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2020-12-09 08:49:50,452 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 5 [2020-12-09 08:49:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:49:50,452 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2020-12-09 08:49:50,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 08:49:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2020-12-09 08:49:50,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 08:49:50,452 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:49:50,452 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2020-12-09 08:49:50,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 08:49:50,453 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 08:49:50,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:49:50,453 INFO L82 PathProgramCache]: Analyzing trace with hash -1537667284, now seen corresponding path program 1 times [2020-12-09 08:49:50,454 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:49:50,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279639371] [2020-12-09 08:49:50,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:49:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:49:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:49:50,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279639371] [2020-12-09 08:49:50,487 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158521871] [2020-12-09 08:49:50,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/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 [2020-12-09 08:49:50,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:49:50,511 INFO L263 TraceCheckSpWp]: Trace formula consists of 18 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 08:49:50,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:49:50,564 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:49:50,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:49:50,587 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:49:50,588 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [983254105] [2020-12-09 08:49:50,608 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-12-09 08:49:50,609 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 08:49:50,613 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 08:49:50,619 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 08:49:50,619 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 08:49:50,721 INFO L180 IcfgInterpreter]: Interpretation finished [2020-12-09 08:49:50,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 3 imperfect interpolant sequences. [2020-12-09 08:49:50,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4, 4, 4] total 9 [2020-12-09 08:49:50,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341562800] [2020-12-09 08:49:50,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 08:49:50,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:49:50,798 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 08:49:50,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 08:49:50,798 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 5 states. [2020-12-09 08:49:50,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:49:50,808 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2020-12-09 08:49:50,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 08:49:50,808 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 08:49:50,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:49:50,808 INFO L225 Difference]: With dead ends: 8 [2020-12-09 08:49:50,808 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 08:49:50,809 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 4 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-12-09 08:49:50,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 08:49:50,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 08:49:50,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 08:49:50,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 08:49:50,810 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-12-09 08:49:50,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:49:50,810 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 08:49:50,810 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 08:49:50,810 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 08:49:50,810 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 08:49:51,011 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-12-09 08:49:51,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 08:49:51,066 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-12-09 08:49:51,066 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 08:49:51,067 INFO L258 CegarLoopResult]: At program point L17-2(lines 17 19) the Hoare annotation is: (and (<= 0 (+ ULTIMATE.start_main_~x~0 2147483648)) (<= ULTIMATE.start_main_~y~0 2147483647) (< ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~y~0)) [2020-12-09 08:49:51,067 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2020-12-09 08:49:51,068 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 08:49:51,068 INFO L262 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-12-09 08:49:51,068 INFO L262 CegarLoopResult]: For program point L18-1(line 18) no Hoare annotation was computed. [2020-12-09 08:49:51,068 INFO L262 CegarLoopResult]: For program point L16(lines 16 20) no Hoare annotation was computed. [2020-12-09 08:49:51,069 INFO L265 CegarLoopResult]: At program point L16-1(lines 16 20) the Hoare annotation is: true [2020-12-09 08:49:51,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:49:51 BoogieIcfgContainer [2020-12-09 08:49:51,121 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 08:49:51,123 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 08:49:51,123 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 08:49:51,124 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 08:49:51,125 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:49:50" (3/4) ... [2020-12-09 08:49:51,130 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 08:49:51,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-09 08:49:51,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-09 08:49:51,141 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 08:49:51,169 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ff5e2e86-cfdb-496f-9d27-31f4f5e62493/bin/utaipan/witness.graphml [2020-12-09 08:49:51,169 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 08:49:51,171 INFO L168 Benchmark]: Toolchain (without parser) took 1364.79 ms. Allocated memory is still 102.8 MB. Free memory was 81.9 MB in the beginning and 39.4 MB in the end (delta: 42.5 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2020-12-09 08:49:51,171 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:49:51,171 INFO L168 Benchmark]: CACSL2BoogieTranslator took 120.88 ms. Allocated memory is still 102.8 MB. Free memory was 81.7 MB in the beginning and 73.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 08:49:51,172 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.89 ms. Allocated memory is still 102.8 MB. Free memory was 73.3 MB in the beginning and 71.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:49:51,172 INFO L168 Benchmark]: Boogie Preprocessor took 11.78 ms. Allocated memory is still 102.8 MB. Free memory was 71.9 MB in the beginning and 71.0 MB in the end (delta: 866.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:49:51,173 INFO L168 Benchmark]: RCFGBuilder took 162.66 ms. Allocated memory is still 102.8 MB. Free memory was 70.9 MB in the beginning and 61.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 08:49:51,173 INFO L168 Benchmark]: TraceAbstraction took 997.63 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 41.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 08:49:51,173 INFO L168 Benchmark]: Witness Printer took 46.57 ms. Allocated memory is still 102.8 MB. Free memory was 41.4 MB in the beginning and 39.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:49:51,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 67.1 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 120.88 ms. Allocated memory is still 102.8 MB. Free memory was 81.7 MB in the beginning and 73.3 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 19.89 ms. Allocated memory is still 102.8 MB. Free memory was 73.3 MB in the beginning and 71.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 11.78 ms. Allocated memory is still 102.8 MB. Free memory was 71.9 MB in the beginning and 71.0 MB in the end (delta: 866.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 162.66 ms. Allocated memory is still 102.8 MB. Free memory was 70.9 MB in the beginning and 61.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 997.63 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 41.4 MB in the end (delta: 19.3 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Witness Printer took 46.57 ms. Allocated memory is still 102.8 MB. Free memory was 41.4 MB in the beginning and 39.4 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: (0 <= x + 2147483648 && y <= 2147483647) && x < y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 26 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 13 HoareAnnotationTreeSize, 2 FomulaSimplifications, 18 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 541 SizeOfPredicates, 3 NumberOfNonLiveVariables, 18 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 5 InterpolantComputations, 2 PerfectInterpolantSequences, 3/6 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: OVERALL_TIME[ms]: 113, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 5, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 9, TOOLS_POST_TIME[ms]: 15, TOOLS_POST_CALL_APPLICATIONS: 0, TOOLS_POST_CALL_TIME[ms]: 0, TOOLS_POST_RETURN_APPLICATIONS: 0, TOOLS_POST_RETURN_TIME[ms]: 0, TOOLS_QUANTIFIERELIM_APPLICATIONS: 9, TOOLS_QUANTIFIERELIM_TIME[ms]: 11, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 4, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 19, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME[ms]: 55, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 1, DOMAIN_ISSUBSETEQ_TIME[ms]: 2, DOMAIN_ISBOTTOM_APPLICATIONS: 5, DOMAIN_ISBOTTOM_TIME[ms]: 4, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 9, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 9, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 1, CALL_SUMMARIZER_APPLICATIONS: 0, CALL_SUMMARIZER_CACHE_MISSES: 0, CALL_SUMMARIZER_OVERALL_TIME[ms]: 0, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 2, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 5, DAG_COMPRESSION_PROCESSED_NODES: 40, DAG_COMPRESSION_RETAINED_NODES: 21, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...