./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.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_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/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 95545cab39e65c643c98f6bfae32ce6d423b76c7 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:57:43,325 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:57:43,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:57:43,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:57:43,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:57:43,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:57:43,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:57:43,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:57:43,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:57:43,412 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:57:43,413 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:57:43,416 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:57:43,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:57:43,422 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:57:43,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:57:43,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:57:43,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:57:43,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:57:43,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:57:43,444 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:57:43,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:57:43,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:57:43,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:57:43,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:57:43,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:57:43,463 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:57:43,464 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:57:43,465 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:57:43,466 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:57:43,467 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:57:43,468 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:57:43,469 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:57:43,470 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:57:43,472 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:57:43,473 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:57:43,473 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:57:43,474 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:57:43,474 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:57:43,474 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:57:43,475 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:57:43,477 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:57:43,481 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:57:43,528 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:57:43,528 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:57:43,530 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:57:43,530 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:57:43,530 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:57:43,530 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:57:43,531 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:57:43,531 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:57:43,531 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:57:43,531 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:57:43,533 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:57:43,533 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:57:43,533 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:57:43,533 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:57:43,534 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:57:43,534 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:57:43,534 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:57:43,535 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:57:43,535 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:57:43,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:57:43,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:57:43,536 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:57:43,536 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:57:43,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:57:43,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:57:43,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:57:43,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:57:43,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:57:43,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:57:43,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:57:43,537 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:57:43,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:57:43,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:57:43,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:57:43,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:57:43,539 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:57:43,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:57:43,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:57:43,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:57:43,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:57:43,540 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_2f21e487-6974-4676-91a0-b3f14e4aacd2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 95545cab39e65c643c98f6bfae32ce6d423b76c7 [2020-11-22 12:57:43,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:57:43,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:57:43,865 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:57:43,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:57:43,867 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:57:43,867 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2020-11-22 12:57:43,940 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/data/e332f39fe/ac8dafbcea864a75b73f14b2f31e4b89/FLAGa6ad2976e [2020-11-22 12:57:44,394 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:57:44,395 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/sv-benchmarks/c/nla-digbench-scaling/fermat2-ll_valuebound2.c [2020-11-22 12:57:44,401 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/data/e332f39fe/ac8dafbcea864a75b73f14b2f31e4b89/FLAGa6ad2976e [2020-11-22 12:57:44,796 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/data/e332f39fe/ac8dafbcea864a75b73f14b2f31e4b89 [2020-11-22 12:57:44,798 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:57:44,799 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:57:44,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:44,808 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:57:44,811 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:57:44,812 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:44" (1/1) ... [2020-11-22 12:57:44,814 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b9a245e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:44, skipping insertion in model container [2020-11-22 12:57:44,815 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:57:44" (1/1) ... [2020-11-22 12:57:44,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:57:44,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:57:45,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:45,074 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:57:45,092 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:57:45,105 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:57:45,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45 WrapperNode [2020-11-22 12:57:45,106 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:57:45,107 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:45,107 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:57:45,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:57:45,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,121 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:57:45,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:57:45,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:57:45,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:57:45,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,152 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,156 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,161 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... [2020-11-22 12:57:45,163 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:57:45,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:57:45,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:57:45,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:57:45,165 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/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 [2020-11-22 12:57:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:57:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:57:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:57:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:57:45,715 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:57:45,715 INFO L298 CfgBuilder]: Removed 21 assume(true) statements. [2020-11-22 12:57:45,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:45 BoogieIcfgContainer [2020-11-22 12:57:45,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:57:45,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:57:45,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:57:45,722 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:57:45,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:57:44" (1/3) ... [2020-11-22 12:57:45,723 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a732393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:45, skipping insertion in model container [2020-11-22 12:57:45,723 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:57:45" (2/3) ... [2020-11-22 12:57:45,724 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a732393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:57:45, skipping insertion in model container [2020-11-22 12:57:45,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:45" (3/3) ... [2020-11-22 12:57:45,725 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat2-ll_valuebound2.c [2020-11-22 12:57:45,735 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:57:45,739 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-22 12:57:45,751 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-22 12:57:45,772 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:57:45,773 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:57:45,773 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:57:45,773 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:57:45,773 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:57:45,773 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:57:45,773 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:57:45,773 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:57:45,785 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-22 12:57:45,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 12:57:45,788 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:57:45,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 12:57:45,789 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:57:45,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:57:45,796 INFO L82 PathProgramCache]: Analyzing trace with hash 3881864, now seen corresponding path program 1 times [2020-11-22 12:57:45,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:57:45,803 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725491320] [2020-11-22 12:57:45,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:57:45,872 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 12:57:45,873 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [202503412] [2020-11-22 12:57:45,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/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 [2020-11-22 12:57:45,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:57:45,943 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-22 12:57:45,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:57:46,146 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2020-11-22 12:57:46,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725491320] [2020-11-22 12:57:46,200 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 12:57:46,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202503412] [2020-11-22 12:57:46,201 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: null [2020-11-22 12:57:46,202 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [227605227] [2020-11-22 12:57:46,225 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2020-11-22 12:57:46,226 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 12:57:46,230 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 12:57:46,239 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 12:57:46,240 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 12:57:46,373 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,398 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,456 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,476 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,488 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,507 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,522 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,538 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,554 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,568 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,580 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 12:57:46,821 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 12:57:47,174 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2020-11-22 12:57:47,792 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2020-11-22 12:57:47,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:57:47,795 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-22 12:57:47,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313584887] [2020-11-22 12:57:47,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:57:47,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 12:57:47,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:57:47,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:57:47,814 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 4 states. [2020-11-22 12:57:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:57:47,903 INFO L93 Difference]: Finished difference Result 19 states and 25 transitions. [2020-11-22 12:57:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-22 12:57:47,906 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-22 12:57:47,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:57:47,911 INFO L225 Difference]: With dead ends: 19 [2020-11-22 12:57:47,912 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:57:47,915 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-11-22 12:57:47,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:57:47,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:57:47,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:57:47,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:57:47,938 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-22 12:57:47,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:57:47,938 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:57:47,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:57:47,939 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:57:47,939 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:57:48,158 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-22 12:57:48,159 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:57:48,334 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-11-22 12:57:48,559 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-22 12:57:48,729 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-22 12:57:48,731 INFO L274 CegarLoopResult]: For program point L35-2(lines 35 46) no Hoare annotation was computed. [2020-11-22 12:57:48,731 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-22 12:57:48,731 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:57:48,731 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-11-22 12:57:48,731 INFO L274 CegarLoopResult]: For program point L12(lines 12 15) no Hoare annotation was computed. [2020-11-22 12:57:48,732 INFO L270 CegarLoopResult]: At program point L12-1(line 37) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~R~0 ULTIMATE.start_main_~R~0)) (.cse1 (* 2 ULTIMATE.start_main_~R~0)) (.cse2 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= .cse0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (= 13 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= ULTIMATE.start_main_~u~0 (+ .cse1 1)) (= |#t~string5.offset| 0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (<= ULTIMATE.start_main_~A~0 2) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| (ite (= (+ (* ULTIMATE.start_main_~u~0 (- 2)) (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) (* (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0) (- 1))) (+ (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4))) 1 0)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (< (+ .cse0 1) (+ .cse1 ULTIMATE.start_main_~A~0)) (= (mod ULTIMATE.start_main_~A~0 2) 1) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse2 |#t~string4.offset|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse2 (+ |#t~string4.offset| 1)) 0) (= ULTIMATE.start_main_~v~0 1))) [2020-11-22 12:57:48,732 INFO L274 CegarLoopResult]: For program point L12-2(lines 12 15) no Hoare annotation was computed. [2020-11-22 12:57:48,732 INFO L270 CegarLoopResult]: At program point L12-3(lines 11 17) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~R~0 ULTIMATE.start_main_~R~0)) (.cse1 (* 2 ULTIMATE.start_main_~R~0)) (.cse2 (select |#memory_int| |#t~string4.base|))) (and (= |ULTIMATE.start___VERIFIER_assert_#in~cond| ULTIMATE.start___VERIFIER_assert_~cond) (= .cse0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (= 13 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= ULTIMATE.start_main_~u~0 (+ .cse1 1)) (= |#t~string5.offset| 0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (<= ULTIMATE.start_main_~A~0 2) (= 0 |#t~string4.offset|) (= |ULTIMATE.start___VERIFIER_assert_#in~cond| (ite (= (+ (* ULTIMATE.start_main_~u~0 (- 2)) (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0) (* (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0) (- 1))) (+ (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4))) 1 0)) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (< (+ .cse0 1) (+ .cse1 ULTIMATE.start_main_~A~0)) (= (mod ULTIMATE.start_main_~A~0 2) 1) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse2 |#t~string4.offset|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse2 (+ |#t~string4.offset| 1)) 0) (= ULTIMATE.start_main_~v~0 1))) [2020-11-22 12:57:48,733 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:57:48,733 INFO L274 CegarLoopResult]: For program point L13(lines 13 14) no Hoare annotation was computed. [2020-11-22 12:57:48,733 INFO L274 CegarLoopResult]: For program point L13-1(lines 13 14) no Hoare annotation was computed. [2020-11-22 12:57:48,733 INFO L270 CegarLoopResult]: At program point L39-2(lines 35 46) the Hoare annotation is: (let ((.cse0 (* ULTIMATE.start_main_~R~0 ULTIMATE.start_main_~R~0)) (.cse1 (* 2 ULTIMATE.start_main_~R~0)) (.cse2 (select |#memory_int| |#t~string4.base|))) (and (= .cse0 (+ ULTIMATE.start_main_~r~0 ULTIMATE.start_main_~A~0)) (= 13 (select |#length| |#t~string5.base|)) (= (select |#valid| 0) 0) (= (select |#valid| |#t~string5.base|) 1) (= (select |#valid| |#t~string4.base|) 1) (= ULTIMATE.start_main_~u~0 (+ .cse1 1)) (= |#t~string5.offset| 0) (= 12 (select |#length| |#t~string6.base|)) (< |#StackHeapBarrier| |#t~string5.base|) (= |#NULL.offset| 0) (<= ULTIMATE.start_main_~A~0 2) (= 0 |#t~string4.offset|) (= 2 (select |#length| |#t~string4.base|)) (= |#NULL.base| 0) (< (+ .cse0 1) (+ .cse1 ULTIMATE.start_main_~A~0)) (= (mod ULTIMATE.start_main_~A~0 2) 1) (= (select |#valid| |#t~string6.base|) 1) (= 48 (select .cse2 |#t~string4.offset|)) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| 1) (< |#StackHeapBarrier| |#t~string6.base|) (< |#StackHeapBarrier| |#t~string4.base|) (= |ULTIMATE.start_assume_abort_if_not_#in~cond| ULTIMATE.start_assume_abort_if_not_~cond) (< 0 |#StackHeapBarrier|) (= |#t~string6.offset| 0) (= (select .cse2 (+ |#t~string4.offset| 1)) 0) (= ULTIMATE.start_main_~v~0 1))) [2020-11-22 12:57:48,743 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,745 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,747 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,754 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,755 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,755 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,755 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,756 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,759 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,760 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,761 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,763 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,764 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,765 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,767 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,768 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,769 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,770 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,771 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,772 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,773 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,774 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:57:48 BoogieIcfgContainer [2020-11-22 12:57:48,778 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:57:48,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:57:48,778 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:57:48,779 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:57:48,779 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:57:45" (3/4) ... [2020-11-22 12:57:48,782 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:57:48,790 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-11-22 12:57:48,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-22 12:57:48,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 12:57:48,791 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:57:48,814 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((R * R == r + A && 13 == unknown-#length-unknown["fermat2-ll.c"]) && \valid[0] == 0) && \valid["fermat2-ll.c"] == 1) && \valid["0"] == 1) && u == 2 * R + 1) && "fermat2-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "fermat2-ll.c") && #NULL == 0) && A <= 2) && 0 == "0") && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && R * R + 1 < 2 * R + A) && A % 2 == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && v == 1 [2020-11-22 12:57:48,814 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((\old(cond) == cond && R * R == r + A) && 13 == unknown-#length-unknown["fermat2-ll.c"]) && \valid[0] == 0) && \valid["fermat2-ll.c"] == 1) && \valid["0"] == 1) && u == 2 * R + 1) && "fermat2-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "fermat2-ll.c") && #NULL == 0) && A <= 2) && 0 == "0") && \old(cond) == (if u * -2 + v * 2 + u * u + v * v * -1 == A * 4 + r * 4 then 1 else 0)) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && R * R + 1 < 2 * R + A) && A % 2 == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && v == 1 [2020-11-22 12:57:48,814 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((((((((((((((\old(cond) == cond && R * R == r + A) && 13 == unknown-#length-unknown["fermat2-ll.c"]) && \valid[0] == 0) && \valid["fermat2-ll.c"] == 1) && \valid["0"] == 1) && u == 2 * R + 1) && "fermat2-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "fermat2-ll.c") && #NULL == 0) && A <= 2) && 0 == "0") && \old(cond) == (if u * -2 + v * 2 + u * u + v * v * -1 == A * 4 + r * 4 then 1 else 0)) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && R * R + 1 < 2 * R + A) && A % 2 == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && v == 1 [2020-11-22 12:57:48,838 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2f21e487-6974-4676-91a0-b3f14e4aacd2/bin/utaipan/witness.graphml [2020-11-22 12:57:48,841 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:57:48,842 INFO L168 Benchmark]: Toolchain (without parser) took 4042.77 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 83.0 MB in the beginning and 85.3 MB in the end (delta: -2.3 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:48,843 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 81.8 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 5.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:48,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.48 ms. Allocated memory is still 111.1 MB. Free memory was 82.6 MB in the beginning and 88.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:48,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.15 ms. Allocated memory is still 111.1 MB. Free memory was 88.2 MB in the beginning and 87.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:48,849 INFO L168 Benchmark]: Boogie Preprocessor took 21.50 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 85.8 MB in the end (delta: 780.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:57:48,850 INFO L168 Benchmark]: RCFGBuilder took 553.03 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 61.0 MB in the end (delta: 24.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:48,850 INFO L168 Benchmark]: TraceAbstraction took 3059.05 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 60.2 MB in the beginning and 88.4 MB in the end (delta: -28.3 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:48,851 INFO L168 Benchmark]: Witness Printer took 62.91 ms. Allocated memory is still 134.2 MB. Free memory was 88.4 MB in the beginning and 85.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:57:48,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 81.8 MB. Free memory was 39.9 MB in the beginning and 39.9 MB in the end (delta: 5.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.48 ms. Allocated memory is still 111.1 MB. Free memory was 82.6 MB in the beginning and 88.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.15 ms. Allocated memory is still 111.1 MB. Free memory was 88.2 MB in the beginning and 87.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.50 ms. Allocated memory is still 111.1 MB. Free memory was 86.6 MB in the beginning and 85.8 MB in the end (delta: 780.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 553.03 ms. Allocated memory is still 111.1 MB. Free memory was 85.8 MB in the beginning and 61.0 MB in the end (delta: 24.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3059.05 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 60.2 MB in the beginning and 88.4 MB in the end (delta: -28.3 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. * Witness Printer took 62.91 ms. Allocated memory is still 134.2 MB. Free memory was 88.4 MB in the beginning and 85.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #NULL - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #StackHeapBarrier - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 5]: 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 [2020-11-22 12:57:48,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,874 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,875 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,877 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,878 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,882 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,883 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((R * R == r + A && 13 == unknown-#length-unknown["fermat2-ll.c"]) && \valid[0] == 0) && \valid["fermat2-ll.c"] == 1) && \valid["0"] == 1) && u == 2 * R + 1) && "fermat2-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "fermat2-ll.c") && #NULL == 0) && A <= 2) && 0 == "0") && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && R * R + 1 < 2 * R + A) && A % 2 == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && v == 1 - InvariantResult [Line: 37]: Loop Invariant [2020-11-22 12:57:48,884 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,885 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,886 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,888 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,889 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,890 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((\old(cond) == cond && R * R == r + A) && 13 == unknown-#length-unknown["fermat2-ll.c"]) && \valid[0] == 0) && \valid["fermat2-ll.c"] == 1) && \valid["0"] == 1) && u == 2 * R + 1) && "fermat2-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "fermat2-ll.c") && #NULL == 0) && A <= 2) && 0 == "0") && \old(cond) == (if u * -2 + v * 2 + u * u + v * v * -1 == A * 4 + r * 4 then 1 else 0)) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && R * R + 1 < 2 * R + A) && A % 2 == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && v == 1 - InvariantResult [Line: 11]: Loop Invariant [2020-11-22 12:57:48,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,891 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,892 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,893 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,895 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-11-22 12:57:48,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable #NULL [2020-11-22 12:57:48,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2020-11-22 12:57:48,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,896 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable #StackHeapBarrier [2020-11-22 12:57:48,897 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: ((((((((((((((((((((((((((\old(cond) == cond && R * R == r + A) && 13 == unknown-#length-unknown["fermat2-ll.c"]) && \valid[0] == 0) && \valid["fermat2-ll.c"] == 1) && \valid["0"] == 1) && u == 2 * R + 1) && "fermat2-ll.c" == 0) && 12 == unknown-#length-unknown["reach_error"]) && unknown-#StackHeapBarrier-unknown < "fermat2-ll.c") && #NULL == 0) && A <= 2) && 0 == "0") && \old(cond) == (if u * -2 + v * 2 + u * u + v * v * -1 == A * 4 + r * 4 then 1 else 0)) && 2 == unknown-#length-unknown["0"]) && #NULL == 0) && R * R + 1 < 2 * R + A) && A % 2 == 1) && \valid["reach_error"] == 1) && 48 == unknown-#memory_int-unknown["0"]["0"]) && \old(cond) == 1) && unknown-#StackHeapBarrier-unknown < "reach_error") && unknown-#StackHeapBarrier-unknown < "0") && \old(cond) == cond) && 0 < unknown-#StackHeapBarrier-unknown) && "reach_error" == 0) && unknown-#memory_int-unknown["0"]["0" + 1] == 0) && v == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 9 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 425 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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]: 596, ICFG_INTERPRETER_ENTERED_PROCEDURES: 1, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 4, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 3, TOOLS_POST_TIME[ms]: 536, 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: 3, TOOLS_QUANTIFIERELIM_TIME[ms]: 533, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 533, FLUID_QUERY_TIME[ms]: 2, FLUID_QUERIES: 7, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME[ms]: 0, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 4, DOMAIN_ISBOTTOM_TIME[ms]: 23, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, 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]: 2, REGEX_TO_DAG_TIME[ms]: 2, DAG_COMPRESSION_TIME[ms]: 4, DAG_COMPRESSION_PROCESSED_NODES: 19, DAG_COMPRESSION_RETAINED_NODES: 13, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...