./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/fermat1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 22d7788319b1f6b53f5835e05bcfc3e9bca79d79 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:48:54,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:48:54,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:48:54,296 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:48:54,296 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:48:54,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:48:54,298 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:48:54,300 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:48:54,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:48:54,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:48:54,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:48:54,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:48:54,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:48:54,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:48:54,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:48:54,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:48:54,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:48:54,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:48:54,313 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:48:54,315 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:48:54,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:48:54,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:48:54,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:48:54,319 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:48:54,323 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:48:54,323 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:48:54,323 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:48:54,324 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:48:54,325 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:48:54,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:48:54,326 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:48:54,326 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:48:54,327 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:48:54,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:48:54,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:48:54,329 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:48:54,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:48:54,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:48:54,330 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:48:54,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:48:54,334 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:48:54,335 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:48:54,355 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:48:54,356 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:48:54,356 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:48:54,357 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:48:54,357 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:48:54,357 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:48:54,357 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:48:54,357 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:48:54,357 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:48:54,358 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:48:54,358 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:48:54,358 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:48:54,358 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:48:54,358 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:48:54,359 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:48:54,359 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:48:54,359 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:48:54,359 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:48:54,360 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:48:54,360 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:48:54,360 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:48:54,360 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:48:54,360 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:48:54,361 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:48:54,361 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:48:54,361 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:48:54,361 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:48:54,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:48:54,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:48:54,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:48:54,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:48:54,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:48:54,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:48:54,362 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:48:54,363 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:48:54,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:48:54,363 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:48:54,363 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2dd26106-1db8-43bc-8942-64aca26f71bd/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(__VERIFIER_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 -> 22d7788319b1f6b53f5835e05bcfc3e9bca79d79 [2019-11-26 02:48:54,589 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:48:54,601 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:48:54,604 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:48:54,606 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:48:54,606 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:48:54,607 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/../../sv-benchmarks/c/nla-digbench/fermat1.c [2019-11-26 02:48:54,667 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/data/0ff68ef4a/01a902880a4047cba5b0610fb0742a2d/FLAGbc67bdcf4 [2019-11-26 02:48:54,993 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:48:54,994 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/sv-benchmarks/c/nla-digbench/fermat1.c [2019-11-26 02:48:55,000 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/data/0ff68ef4a/01a902880a4047cba5b0610fb0742a2d/FLAGbc67bdcf4 [2019-11-26 02:48:55,427 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/data/0ff68ef4a/01a902880a4047cba5b0610fb0742a2d [2019-11-26 02:48:55,430 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:48:55,431 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:48:55,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:48:55,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:48:55,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:48:55,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4665d86b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55, skipping insertion in model container [2019-11-26 02:48:55,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,445 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:48:55,464 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:48:55,626 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:48:55,630 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:48:55,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:48:55,756 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:48:55,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55 WrapperNode [2019-11-26 02:48:55,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:48:55,757 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:48:55,757 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:48:55,757 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:48:55,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:48:55,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:48:55,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:48:55,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:48:55,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... [2019-11-26 02:48:55,818 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:48:55,818 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:48:55,818 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:48:55,819 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:48:55,819 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/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 [2019-11-26 02:48:55,891 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:48:55,891 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:48:56,151 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:48:56,152 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-26 02:48:56,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:56 BoogieIcfgContainer [2019-11-26 02:48:56,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:48:56,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:48:56,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:48:56,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:48:56,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:48:55" (1/3) ... [2019-11-26 02:48:56,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b65426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:48:56, skipping insertion in model container [2019-11-26 02:48:56,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:48:55" (2/3) ... [2019-11-26 02:48:56,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b65426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:48:56, skipping insertion in model container [2019-11-26 02:48:56,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:56" (3/3) ... [2019-11-26 02:48:56,161 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-11-26 02:48:56,171 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:48:56,178 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-11-26 02:48:56,191 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-11-26 02:48:56,216 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:48:56,216 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:48:56,216 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:48:56,216 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:48:56,217 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:48:56,217 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:48:56,217 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:48:56,217 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:48:56,232 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-11-26 02:48:56,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-11-26 02:48:56,238 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:48:56,239 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-11-26 02:48:56,239 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:48:56,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:48:56,246 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-11-26 02:48:56,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:48:56,255 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721380906] [2019-11-26 02:48:56,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:48:56,373 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-26 02:48:56,374 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1294182384] [2019-11-26 02:48:56,374 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/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 [2019-11-26 02:48:56,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:48:56,460 WARN L253 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-26 02:48:56,465 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:48:56,674 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2019-11-26 02:48:56,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:48:57,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:57,115 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:48:59,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:48:59,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1721380906] [2019-11-26 02:48:59,170 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:48:59,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1294182384] [2019-11-26 02:48:59,171 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:48:59,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-26 02:48:59,173 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581196201] [2019-11-26 02:48:59,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-26 02:48:59,177 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:48:59,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-26 02:48:59,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2019-11-26 02:48:59,197 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2019-11-26 02:49:03,469 WARN L192 SmtUtils]: Spent 4.23 s on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2019-11-26 02:49:07,633 WARN L192 SmtUtils]: Spent 4.14 s on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-11-26 02:49:11,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:49:11,793 INFO L93 Difference]: Finished difference Result 42 states and 64 transitions. [2019-11-26 02:49:11,794 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-26 02:49:11,796 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-11-26 02:49:11,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:49:11,803 INFO L225 Difference]: With dead ends: 42 [2019-11-26 02:49:11,803 INFO L226 Difference]: Without dead ends: 19 [2019-11-26 02:49:11,806 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=33, Invalid=56, Unknown=1, NotChecked=0, Total=90 [2019-11-26 02:49:11,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-11-26 02:49:11,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 14. [2019-11-26 02:49:11,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-26 02:49:11,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-26 02:49:11,843 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2019-11-26 02:49:11,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:49:11,843 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-26 02:49:11,843 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-26 02:49:11,844 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-26 02:49:11,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:49:11,844 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:49:11,844 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:49:12,047 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:49:12,048 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:49:12,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:49:12,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1360971675, now seen corresponding path program 1 times [2019-11-26 02:49:12,048 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:49:12,049 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988387281] [2019-11-26 02:49:12,049 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:49:12,051 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-26 02:49:12,052 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1320831008] [2019-11-26 02:49:12,052 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/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 [2019-11-26 02:49:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:49:12,073 WARN L253 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 14 conjunts are in the unsatisfiable core [2019-11-26 02:49:12,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:49:12,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:49:12,376 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) c_ULTIMATE.start_main_~A~0)) (= (+ (* 2 c_ULTIMATE.start_main_~v~0) (* c_ULTIMATE.start_main_~u~0 c_ULTIMATE.start_main_~u~0)) (+ (* 2 c_ULTIMATE.start_main_~u~0) (* 4 c_ULTIMATE.start_main_~A~0) (* c_ULTIMATE.start_main_~v~0 c_ULTIMATE.start_main_~v~0)))) is different from false [2019-11-26 02:49:12,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:49:12,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:49:12,400 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:49:12,528 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-11-26 02:49:12,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:49:12,536 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988387281] [2019-11-26 02:49:12,536 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:49:12,537 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1320831008] [2019-11-26 02:49:12,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:49:12,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-11-26 02:49:12,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557129163] [2019-11-26 02:49:12,540 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-11-26 02:49:12,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:49:12,546 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-11-26 02:49:12,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=63, Unknown=3, NotChecked=16, Total=110 [2019-11-26 02:49:12,548 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 11 states. [2019-11-26 02:49:14,663 WARN L192 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-11-26 02:49:14,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:49:14,877 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-11-26 02:49:14,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-26 02:49:14,879 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-11-26 02:49:14,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:49:14,879 INFO L225 Difference]: With dead ends: 15 [2019-11-26 02:49:14,879 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:49:14,881 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=48, Invalid=85, Unknown=3, NotChecked=20, Total=156 [2019-11-26 02:49:14,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:49:14,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:49:14,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:49:14,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:49:14,882 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-11-26 02:49:14,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:49:14,882 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:49:14,882 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-11-26 02:49:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:49:14,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:49:15,089 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:49:15,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:49:19,171 WARN L192 SmtUtils]: Spent 3.96 s on a formula simplification that was a NOOP. DAG size: 40 [2019-11-26 02:49:19,186 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-26 02:49:19,187 INFO L444 ceAbstractionStarter]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-11-26 02:49:19,187 INFO L440 ceAbstractionStarter]: At program point L7-2(lines 30 31) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= (+ (* ULTIMATE.start_main_~u~0 2) (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-26 02:49:19,187 INFO L444 ceAbstractionStarter]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-11-26 02:49:19,188 INFO L440 ceAbstractionStarter]: At program point L7-5(lines 35 36) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-26 02:49:19,188 INFO L444 ceAbstractionStarter]: For program point L7-6(lines 7 10) no Hoare annotation was computed. [2019-11-26 02:49:19,188 INFO L440 ceAbstractionStarter]: At program point L7-8(lines 43 44) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-26 02:49:19,188 INFO L444 ceAbstractionStarter]: For program point L7-9(lines 7 10) no Hoare annotation was computed. [2019-11-26 02:49:19,189 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:49:19,189 INFO L440 ceAbstractionStarter]: At program point L7-11(lines 6 12) the Hoare annotation is: (and (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= (+ (* 2 ULTIMATE.start_main_~u~0) (* 4 ULTIMATE.start_main_~A~0) (* 4 ULTIMATE.start_main_~r~0) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* 2 ULTIMATE.start_main_~v~0) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-26 02:49:19,189 INFO L444 ceAbstractionStarter]: For program point L28-2(lines 28 48) no Hoare annotation was computed. [2019-11-26 02:49:19,189 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-26 02:49:19,189 INFO L444 ceAbstractionStarter]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-11-26 02:49:19,190 INFO L444 ceAbstractionStarter]: For program point L41-1(lines 28 48) no Hoare annotation was computed. [2019-11-26 02:49:19,190 INFO L444 ceAbstractionStarter]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-11-26 02:49:19,205 INFO L440 ceAbstractionStarter]: At program point L41-2(lines 28 48) the Hoare annotation is: (and (or (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (let ((.cse1 (div (+ (* ULTIMATE.start_main_~u~0 (- 1)) 1) (- 2)))) (and (= 1 (mod ULTIMATE.start_main_~A~0 2)) (< (let ((.cse0 (+ .cse1 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0) (= ULTIMATE.start_main_~v~0 1) (= (* .cse1 .cse1) (+ ULTIMATE.start_main_~A~0 ULTIMATE.start_main_~r~0))))) (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse2 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse2 .cse2)) ULTIMATE.start_main_~A~0)) (= (+ (* ULTIMATE.start_main_~u~0 2) (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0)))) [2019-11-26 02:49:19,205 INFO L444 ceAbstractionStarter]: For program point L8-2(lines 8 9) no Hoare annotation was computed. [2019-11-26 02:49:19,205 INFO L444 ceAbstractionStarter]: For program point L8-3(lines 8 9) no Hoare annotation was computed. [2019-11-26 02:49:19,205 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:49:19,205 INFO L440 ceAbstractionStarter]: At program point L33-2(lines 33 39) the Hoare annotation is: (and (exists ((ULTIMATE.start_main_~R~0 Int)) (< (let ((.cse0 (+ ULTIMATE.start_main_~R~0 (- 1)))) (* .cse0 .cse0)) ULTIMATE.start_main_~A~0)) (= (+ (* ULTIMATE.start_main_~u~0 2) (* ULTIMATE.start_main_~A~0 4) (* ULTIMATE.start_main_~r~0 4) (* ULTIMATE.start_main_~v~0 ULTIMATE.start_main_~v~0)) (+ (* ULTIMATE.start_main_~v~0 2) (* ULTIMATE.start_main_~u~0 ULTIMATE.start_main_~u~0))) (= 1 ULTIMATE.start___VERIFIER_assert_~cond)) [2019-11-26 02:49:19,205 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-26 02:49:19,206 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-11-26 02:49:19,213 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,214 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,230 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,230 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,234 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,263 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,264 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,265 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,267 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:49:19 BoogieIcfgContainer [2019-11-26 02:49:19,268 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:49:19,268 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:49:19,268 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:49:19,269 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:49:19,269 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:48:56" (3/4) ... [2019-11-26 02:49:19,273 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:49:19,284 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-26 02:49:19,284 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:49:19,285 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-26 02:49:19,312 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1 == cond || (((1 == A % 2 && ((u * -1 + 1) / -2 + -1) * ((u * -1 + 1) / -2 + -1) < A) && v == 1) && (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) == A + r)) && (\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A)) && u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u [2019-11-26 02:49:19,313 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u) && 1 == cond [2019-11-26 02:49:19,313 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u) && 1 == cond [2019-11-26 02:49:19,313 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u [2019-11-26 02:49:19,313 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u [2019-11-26 02:49:19,342 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2dd26106-1db8-43bc-8942-64aca26f71bd/bin/utaipan/witness.graphml [2019-11-26 02:49:19,342 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:49:19,344 INFO L168 Benchmark]: Toolchain (without parser) took 23913.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 950.2 MB in the beginning and 1.0 GB in the end (delta: -51.3 MB). Peak memory consumption was 99.2 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:19,345 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:19,346 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:19,346 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:19,347 INFO L168 Benchmark]: Boogie Preprocessor took 25.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:19,347 INFO L168 Benchmark]: RCFGBuilder took 334.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:19,348 INFO L168 Benchmark]: TraceAbstraction took 23113.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. [2019-11-26 02:49:19,348 INFO L168 Benchmark]: Witness Printer took 74.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:49:19,351 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 967.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 950.2 MB in the beginning and 1.1 GB in the end (delta: -191.8 MB). Peak memory consumption was 23.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 35.63 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 334.81 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 23113.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 119.5 MB). Peak memory consumption was 119.5 MB. Max. memory is 11.5 GB. * Witness Printer took 74.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 9]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 43]: Loop Invariant [2019-11-26 02:49:19,363 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,363 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 33]: Loop Invariant [2019-11-26 02:49:19,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u) && 1 == cond - InvariantResult [Line: 30]: Loop Invariant [2019-11-26 02:49:19,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,367 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,367 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,368 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u) && 1 == cond - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: !(0 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - InvariantResult [Line: 28]: Loop Invariant [2019-11-26 02:49:19,369 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,369 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,370 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((1 == cond || (((1 == A % 2 && ((u * -1 + 1) / -2 + -1) * ((u * -1 + 1) / -2 + -1) < A) && v == 1) && (u * -1 + 1) / -2 * ((u * -1 + 1) / -2) == A + r)) && (\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A)) && u * 2 + A * 4 + r * 4 + v * v == v * 2 + u * u - InvariantResult [Line: 35]: Loop Invariant [2019-11-26 02:49:19,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,371 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,372 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-11-26 02:49:19,372 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] Derived loop invariant: ((\exists ULTIMATE.start_main_~R~0 : int :: (ULTIMATE.start_main_~R~0 + -1) * (ULTIMATE.start_main_~R~0 + -1) < A) && 1 == cond) && 2 * u + 4 * A + 4 * r + v * v == 2 * v + u * u - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 4 error locations. Result: SAFE, OverallTime: 22.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.0s, HoareTripleCheckerStatistics: 6 SDtfs, 66 SDslu, 10 SDs, 0 SdLazy, 58 SolverSat, 45 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 13.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 2 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 13 NumberOfFragments, 251 HoareAnnotationTreeSize, 6 FomulaSimplifications, 373 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 4 QuantifiedInterpolants, 1578 SizeOfPredicates, 19 NumberOfNonLiveVariables, 41 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...