./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 58edc92b721c1f9ebb1bf2bfb3fa6c635e179544 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:39:12,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:39:12,084 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:39:12,179 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:39:12,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:39:12,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:39:12,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:39:12,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:39:12,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:39:12,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:39:12,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:39:12,193 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:39:12,194 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:39:12,195 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:39:12,197 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:39:12,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:39:12,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:39:12,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:39:12,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:39:12,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:39:12,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:39:12,211 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:39:12,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:39:12,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:39:12,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:39:12,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:39:12,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:39:12,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:39:12,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:39:12,222 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:39:12,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:39:12,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:39:12,225 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:39:12,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:39:12,228 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:39:12,229 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:39:12,229 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:39:12,230 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:39:12,230 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:39:12,231 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:39:12,232 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:39:12,233 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:39:12,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:39:12,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:39:12,259 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:39:12,259 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:39:12,260 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:39:12,260 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:39:12,260 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:39:12,261 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:39:12,261 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:39:12,261 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:39:12,262 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:39:12,262 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:39:12,262 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:39:12,263 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:39:12,263 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:39:12,264 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:39:12,264 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:39:12,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:39:12,265 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:39:12,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:39:12,266 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:39:12,266 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:39:12,266 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:39:12,266 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:39:12,267 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:39:12,267 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:39:12,267 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:39:12,267 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:39:12,268 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:39:12,268 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:39:12,268 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:39:12,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:39:12,269 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:39:12,269 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:39:12,269 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:39:12,269 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:39:12,270 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:39:12,270 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:39:12,270 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:39:12,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:39:12,271 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_ddd5ae72-34dd-43ec-868e-2f66592abd24/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 58edc92b721c1f9ebb1bf2bfb3fa6c635e179544 [2020-11-28 07:39:12,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:39:12,553 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:39:12,556 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:39:12,557 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:39:12,563 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:39:12,564 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-11-28 07:39:12,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/data/f2d5eed4c/efb99e2d87b54c45b7f51aeed080e761/FLAGfa830abb2 [2020-11-28 07:39:13,094 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:39:13,095 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/sv-benchmarks/c/nla-digbench-scaling/geo2-ll_valuebound1.c [2020-11-28 07:39:13,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/data/f2d5eed4c/efb99e2d87b54c45b7f51aeed080e761/FLAGfa830abb2 [2020-11-28 07:39:13,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/data/f2d5eed4c/efb99e2d87b54c45b7f51aeed080e761 [2020-11-28 07:39:13,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:39:13,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:39:13,493 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:13,494 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:39:13,497 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:39:13,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,504 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5351ce7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13, skipping insertion in model container [2020-11-28 07:39:13,505 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,510 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:39:13,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:39:13,728 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:13,738 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:39:13,757 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:39:13,772 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:39:13,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13 WrapperNode [2020-11-28 07:39:13,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:39:13,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:13,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:39:13,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:39:13,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,808 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:39:13,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:39:13,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:39:13,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:39:13,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,819 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,820 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... [2020-11-28 07:39:13,831 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:39:13,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:39:13,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:39:13,832 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:39:13,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/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 [2020-11-28 07:39:13,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:39:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:39:13,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:39:13,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:39:14,321 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:39:14,322 INFO L298 CfgBuilder]: Removed 17 assume(true) statements. [2020-11-28 07:39:14,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:14 BoogieIcfgContainer [2020-11-28 07:39:14,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:39:14,326 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:39:14,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:39:14,330 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:39:14,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:39:13" (1/3) ... [2020-11-28 07:39:14,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547efb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:14, skipping insertion in model container [2020-11-28 07:39:14,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:39:13" (2/3) ... [2020-11-28 07:39:14,333 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547efb9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:39:14, skipping insertion in model container [2020-11-28 07:39:14,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:14" (3/3) ... [2020-11-28 07:39:14,334 INFO L111 eAbstractionObserver]: Analyzing ICFG geo2-ll_valuebound1.c [2020-11-28 07:39:14,346 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:39:14,351 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-28 07:39:14,360 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-28 07:39:14,383 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:39:14,383 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:39:14,384 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:39:14,384 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:39:14,384 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:39:14,384 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:39:14,384 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:39:14,384 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:39:14,397 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-28 07:39:14,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:39:14,401 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:14,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:39:14,402 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:14,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:14,407 INFO L82 PathProgramCache]: Analyzing trace with hash 3033814, now seen corresponding path program 1 times [2020-11-28 07:39:14,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:14,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287771358] [2020-11-28 07:39:14,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:14,531 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:39:14,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [139521470] [2020-11-28 07:39:14,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/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 [2020-11-28 07:39:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:14,648 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:39:14,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:14,776 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:14,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:14,796 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-28 07:39:14,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:14,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287771358] [2020-11-28 07:39:14,826 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:39:14,826 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139521470] [2020-11-28 07:39:14,827 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:14,827 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 07:39:14,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [837121912] [2020-11-28 07:39:14,834 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:39:14,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:14,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:39:14,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:39:14,861 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2020-11-28 07:39:17,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:17,095 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2020-11-28 07:39:17,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-28 07:39:17,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-28 07:39:17,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:17,105 INFO L225 Difference]: With dead ends: 38 [2020-11-28 07:39:17,105 INFO L226 Difference]: Without dead ends: 17 [2020-11-28 07:39:17,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-28 07:39:17,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-28 07:39:17,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-28 07:39:17,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-28 07:39:17,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-28 07:39:17,147 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2020-11-28 07:39:17,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:17,147 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-28 07:39:17,147 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:39:17,148 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-28 07:39:17,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-28 07:39:17,148 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:39:17,148 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-11-28 07:39:17,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-28 07:39:17,363 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:39:17,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:39:17,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1292580502, now seen corresponding path program 1 times [2020-11-28 07:39:17,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:39:17,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228268944] [2020-11-28 07:39:17,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:39:17,379 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-28 07:39:17,379 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1278930032] [2020-11-28 07:39:17,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:39:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:39:17,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:39:17,442 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:39:17,506 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:17,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:39:17,525 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:39:17,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228268944] [2020-11-28 07:39:17,526 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-28 07:39:17,526 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1278930032] [2020-11-28 07:39:17,526 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:39:17,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:39:17,527 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366704547] [2020-11-28 07:39:17,528 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:39:17,528 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:39:17,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:39:17,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:39:17,530 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 6 states. [2020-11-28 07:39:17,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:39:17,536 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-11-28 07:39:17,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 07:39:17,537 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-11-28 07:39:17,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:39:17,538 INFO L225 Difference]: With dead ends: 16 [2020-11-28 07:39:17,538 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:39:17,539 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:39:17,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:39:17,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:39:17,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:39:17,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:39:17,540 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-28 07:39:17,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:39:17,540 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:39:17,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:39:17,540 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:39:17,541 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:39:17,762 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-28 07:39:17,764 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:39:17,843 INFO L270 CegarLoopResult]: At program point L35-2(lines 35 44) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~k~0 1)) [2020-11-28 07:39:17,843 INFO L274 CegarLoopResult]: For program point L35-3(lines 35 44) no Hoare annotation was computed. [2020-11-28 07:39:17,844 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 07:39:17,844 INFO L274 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-11-28 07:39:17,844 INFO L270 CegarLoopResult]: At program point L15-1(lines 38 39) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~z~0) (= ULTIMATE.start_main_~x~0 1) (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (<= 1 ULTIMATE.start_main_~c~0) (= ULTIMATE.start_main_~y~0 1) (<= 0 ULTIMATE.start_main_~k~0) (<= ULTIMATE.start_main_~z~0 1) (<= ULTIMATE.start_main_~k~0 1)) [2020-11-28 07:39:17,844 INFO L274 CegarLoopResult]: For program point L15-2(lines 15 18) no Hoare annotation was computed. [2020-11-28 07:39:17,844 INFO L277 CegarLoopResult]: At program point L15-3(lines 14 20) the Hoare annotation is: true [2020-11-28 07:39:17,844 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:39:17,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-11-28 07:39:17,845 INFO L274 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-11-28 07:39:17,845 INFO L274 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-11-28 07:39:17,845 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:39:17,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:39:17 BoogieIcfgContainer [2020-11-28 07:39:17,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:39:17,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:39:17,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:39:17,862 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:39:17,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:39:14" (3/4) ... [2020-11-28 07:39:17,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:39:17,876 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-11-28 07:39:17,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-28 07:39:17,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:39:17,877 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:39:17,920 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ddd5ae72-34dd-43ec-868e-2f66592abd24/bin/utaipan/witness.graphml [2020-11-28 07:39:17,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:39:17,922 INFO L168 Benchmark]: Toolchain (without parser) took 4431.52 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 75.5 MB in the beginning and 93.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 3.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:17,922 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:17,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 279.82 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 78.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:17,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.21 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 76.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:17,924 INFO L168 Benchmark]: Boogie Preprocessor took 22.34 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 75.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:39:17,925 INFO L168 Benchmark]: RCFGBuilder took 492.93 ms. Allocated memory is still 102.8 MB. Free memory was 75.6 MB in the beginning and 57.1 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:17,925 INFO L168 Benchmark]: TraceAbstraction took 3535.09 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.7 MB in the beginning and 96.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:17,926 INFO L168 Benchmark]: Witness Printer took 58.36 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 93.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-28 07:39:17,929 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 102.8 MB. Free memory is still 62.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 279.82 ms. Allocated memory is still 102.8 MB. Free memory was 75.4 MB in the beginning and 78.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.21 ms. Allocated memory is still 102.8 MB. Free memory was 78.1 MB in the beginning and 76.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.34 ms. Allocated memory is still 102.8 MB. Free memory was 76.6 MB in the beginning and 75.6 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 492.93 ms. Allocated memory is still 102.8 MB. Free memory was 75.6 MB in the beginning and 57.1 MB in the end (delta: 18.5 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3535.09 ms. Allocated memory was 102.8 MB in the beginning and 123.7 MB in the end (delta: 21.0 MB). Free memory was 56.7 MB in the beginning and 96.9 MB in the end (delta: -40.2 MB). Peak memory consumption was 24.4 MB. Max. memory is 16.1 GB. * Witness Printer took 58.36 ms. Allocated memory is still 123.7 MB. Free memory was 96.9 MB in the beginning and 93.6 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((0 <= z && x == 1) && 1 <= c) && y == 1) && 0 <= k) && z <= 1) && k <= 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((((((0 <= z && x == 1) && 1 <= cond) && 1 <= c) && y == 1) && 0 <= k) && z <= 1) && k <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 SDtfs, 17 SDslu, 22 SDs, 0 SdLazy, 21 SolverSat, 11 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 8 NumberOfFragments, 48 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 906 SizeOfPredicates, 8 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 14/14 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...