./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 f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench/fermat1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/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 0.1.25-f470102 [2019-12-07 20:12:12,478 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 20:12:12,479 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 20:12:12,487 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 20:12:12,487 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 20:12:12,488 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 20:12:12,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 20:12:12,490 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 20:12:12,491 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 20:12:12,492 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 20:12:12,493 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 20:12:12,493 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 20:12:12,494 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 20:12:12,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 20:12:12,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 20:12:12,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 20:12:12,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 20:12:12,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 20:12:12,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 20:12:12,500 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 20:12:12,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 20:12:12,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 20:12:12,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 20:12:12,503 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 20:12:12,505 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 20:12:12,505 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 20:12:12,505 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 20:12:12,506 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 20:12:12,506 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 20:12:12,507 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 20:12:12,507 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 20:12:12,507 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 20:12:12,508 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 20:12:12,508 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 20:12:12,509 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 20:12:12,509 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 20:12:12,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 20:12:12,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 20:12:12,509 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 20:12:12,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 20:12:12,510 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 20:12:12,511 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 20:12:12,520 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 20:12:12,520 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 20:12:12,521 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 20:12:12,521 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 20:12:12,521 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 20:12:12,521 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 20:12:12,521 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 20:12:12,521 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 20:12:12,521 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 20:12:12,521 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 20:12:12,522 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 20:12:12,522 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 20:12:12,522 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 20:12:12,522 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 20:12:12,522 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 20:12:12,522 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 20:12:12,523 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 20:12:12,524 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 20:12:12,524 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 20:12:12,524 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 20:12:12,524 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 20:12:12,524 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 20:12:12,524 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 20:12:12,524 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 20:12:12,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 20:12:12,525 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 20:12:12,525 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 20:12:12,525 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 20:12:12,525 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 20:12:12,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 20:12:12,525 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 20:12:12,526 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 20:12:12,526 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 20:12:12,526 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_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/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 [2019-12-07 20:12:12,629 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 20:12:12,638 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 20:12:12,641 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 20:12:12,642 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 20:12:12,643 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 20:12:12,643 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/../../sv-benchmarks/c/nla-digbench/fermat1.c [2019-12-07 20:12:12,693 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/data/fc87e6d8e/9550f17192714b57a5feea18449f4f39/FLAG5bef096dc [2019-12-07 20:12:13,017 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 20:12:13,018 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/sv-benchmarks/c/nla-digbench/fermat1.c [2019-12-07 20:12:13,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/data/fc87e6d8e/9550f17192714b57a5feea18449f4f39/FLAG5bef096dc [2019-12-07 20:12:13,454 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/data/fc87e6d8e/9550f17192714b57a5feea18449f4f39 [2019-12-07 20:12:13,456 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 20:12:13,458 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 20:12:13,459 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 20:12:13,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 20:12:13,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 20:12:13,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,465 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342da0ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13, skipping insertion in model container [2019-12-07 20:12:13,465 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,470 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 20:12:13,481 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 20:12:13,585 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:12:13,587 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 20:12:13,635 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 20:12:13,646 INFO L208 MainTranslator]: Completed translation [2019-12-07 20:12:13,646 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13 WrapperNode [2019-12-07 20:12:13,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 20:12:13,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 20:12:13,647 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 20:12:13,647 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 20:12:13,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,658 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,671 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 20:12:13,671 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 20:12:13,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 20:12:13,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 20:12:13,678 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,678 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,679 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... [2019-12-07 20:12:13,686 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 20:12:13,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 20:12:13,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 20:12:13,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 20:12:13,688 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/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 [2019-12-07 20:12:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 20:12:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 20:12:13,866 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 20:12:13,866 INFO L287 CfgBuilder]: Removed 15 assume(true) statements. [2019-12-07 20:12:13,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:12:13 BoogieIcfgContainer [2019-12-07 20:12:13,867 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 20:12:13,867 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 20:12:13,867 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 20:12:13,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 20:12:13,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 08:12:13" (1/3) ... [2019-12-07 20:12:13,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443a355b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:12:13, skipping insertion in model container [2019-12-07 20:12:13,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 08:12:13" (2/3) ... [2019-12-07 20:12:13,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@443a355b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 08:12:13, skipping insertion in model container [2019-12-07 20:12:13,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:12:13" (3/3) ... [2019-12-07 20:12:13,872 INFO L109 eAbstractionObserver]: Analyzing ICFG fermat1.c [2019-12-07 20:12:13,878 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 20:12:13,882 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2019-12-07 20:12:13,889 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-07 20:12:13,904 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 20:12:13,904 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 20:12:13,904 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 20:12:13,904 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 20:12:13,904 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 20:12:13,904 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 20:12:13,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 20:12:13,904 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 20:12:13,914 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-12-07 20:12:13,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 20:12:13,917 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:12:13,918 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 20:12:13,918 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:12:13,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:12:13,922 INFO L82 PathProgramCache]: Analyzing trace with hash 963340, now seen corresponding path program 1 times [2019-12-07 20:12:13,928 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:12:13,929 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815656683] [2019-12-07 20:12:13,929 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:12:13,976 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 20:12:13,976 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1637045757] [2019-12-07 20:12:13,976 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/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 [2019-12-07 20:12:14,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:12:14,003 WARN L262 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 20:12:14,007 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:12:14,126 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:12:14,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:12:14,530 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:12:16,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:12:16,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815656683] [2019-12-07 20:12:16,557 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:12:16,557 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637045757] [2019-12-07 20:12:16,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:12:16,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-12-07 20:12:16,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328581348] [2019-12-07 20:12:16,562 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-07 20:12:16,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:12:16,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-07 20:12:16,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=19, Unknown=1, NotChecked=0, Total=30 [2019-12-07 20:12:16,572 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 6 states. [2019-12-07 20:12:20,632 WARN L192 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2019-12-07 20:12:26,711 WARN L192 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 37 DAG size of output: 33 [2019-12-07 20:12:30,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:12:30,959 INFO L93 Difference]: Finished difference Result 48 states and 76 transitions. [2019-12-07 20:12:30,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-07 20:12:30,960 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2019-12-07 20:12:30,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:12:30,966 INFO L225 Difference]: With dead ends: 48 [2019-12-07 20:12:30,966 INFO L226 Difference]: Without dead ends: 25 [2019-12-07 20:12:30,968 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=33, Invalid=56, Unknown=1, NotChecked=0, Total=90 [2019-12-07 20:12:30,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-07 20:12:30,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 14. [2019-12-07 20:12:30,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-12-07 20:12:30,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-12-07 20:12:30,990 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 4 [2019-12-07 20:12:30,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:12:30,990 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-12-07 20:12:30,990 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-07 20:12:30,991 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-12-07 20:12:30,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 20:12:30,991 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 20:12:30,991 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 20:12:31,192 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:12:31,192 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 20:12:31,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 20:12:31,193 INFO L82 PathProgramCache]: Analyzing trace with hash -1360971675, now seen corresponding path program 1 times [2019-12-07 20:12:31,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 20:12:31,194 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995889607] [2019-12-07 20:12:31,194 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 20:12:31,199 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-12-07 20:12:31,199 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1526563869] [2019-12-07 20:12:31,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/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 [2019-12-07 20:12:31,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 20:12:31,230 WARN L262 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 14 conjunts are in the unsatisfiable core [2019-12-07 20:12:31,231 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 20:12:33,308 WARN L192 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 30 [2019-12-07 20:12:33,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:12:33,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:12:33,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:12:33,373 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 20:12:33,434 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 20:12:33,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 20:12:33,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995889607] [2019-12-07 20:12:33,437 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 20:12:33,437 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526563869] [2019-12-07 20:12:33,437 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-12-07 20:12:33,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2019-12-07 20:12:33,438 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6685216] [2019-12-07 20:12:33,438 INFO L442 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-12-07 20:12:33,439 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 20:12:33,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-12-07 20:12:33,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=76, Unknown=2, NotChecked=0, Total=110 [2019-12-07 20:12:33,439 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 11 states. [2019-12-07 20:12:37,524 WARN L192 SmtUtils]: Spent 4.04 s on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2019-12-07 20:12:37,839 WARN L192 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2019-12-07 20:12:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 20:12:37,897 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-12-07 20:12:37,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 20:12:37,898 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 7 [2019-12-07 20:12:37,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 20:12:37,898 INFO L225 Difference]: With dead ends: 15 [2019-12-07 20:12:37,898 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 20:12:37,899 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=53, Invalid=100, Unknown=3, NotChecked=0, Total=156 [2019-12-07 20:12:37,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 20:12:37,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 20:12:37,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 20:12:37,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 20:12:37,899 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 20:12:37,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 20:12:37,899 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 20:12:37,899 INFO L463 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-12-07 20:12:37,900 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 20:12:37,900 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 20:12:38,100 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 20:12:38,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 20:12:41,412 WARN L192 SmtUtils]: Spent 3.24 s on a formula simplification that was a NOOP. DAG size: 40 [2019-12-07 20:12:41,422 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-12-07 20:12:41,422 INFO L246 CegarLoopResult]: For program point L7(lines 7 10) no Hoare annotation was computed. [2019-12-07 20:12:41,422 INFO L242 CegarLoopResult]: 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)) [2019-12-07 20:12:41,422 INFO L246 CegarLoopResult]: For program point L7-3(lines 7 10) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L242 CegarLoopResult]: 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)) (= (+ (* 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)) [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point L7-6(lines 7 10) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L242 CegarLoopResult]: 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)) (= (+ (* 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)) [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point L7-9(lines 7 10) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L242 CegarLoopResult]: 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)))) [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point L28-2(lines 28 48) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point L8(lines 8 9) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point L41-1(lines 28 48) no Hoare annotation was computed. [2019-12-07 20:12:41,423 INFO L246 CegarLoopResult]: For program point L8-1(lines 8 9) no Hoare annotation was computed. [2019-12-07 20:12:41,424 INFO L242 CegarLoopResult]: 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)))) [2019-12-07 20:12:41,424 INFO L246 CegarLoopResult]: For program point L8-2(lines 8 9) no Hoare annotation was computed. [2019-12-07 20:12:41,424 INFO L246 CegarLoopResult]: For program point L8-3(lines 8 9) no Hoare annotation was computed. [2019-12-07 20:12:41,424 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 20:12:41,424 INFO L242 CegarLoopResult]: 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)) [2019-12-07 20:12:41,424 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-12-07 20:12:41,424 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2019-12-07 20:12:41,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,430 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,435 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,436 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,437 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,439 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,440 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,441 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 08:12:41 BoogieIcfgContainer [2019-12-07 20:12:41,443 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 20:12:41,443 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 20:12:41,443 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 20:12:41,443 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 20:12:41,444 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 08:12:13" (3/4) ... [2019-12-07 20:12:41,446 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 20:12:41,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-12-07 20:12:41,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 20:12:41,453 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 20:12:41,471 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 [2019-12-07 20:12:41,471 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 [2019-12-07 20:12:41,471 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 [2019-12-07 20:12:41,472 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 [2019-12-07 20:12:41,472 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 [2019-12-07 20:12:41,491 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_2e3dbcb5-0a81-4dec-8510-a78d62f8fa99/bin/utaipan/witness.graphml [2019-12-07 20:12:41,492 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 20:12:41,493 INFO L168 Benchmark]: Toolchain (without parser) took 28035.58 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 942.1 MB in the beginning and 935.0 MB in the end (delta: 7.1 MB). Peak memory consumption was 106.2 MB. Max. memory is 11.5 GB. [2019-12-07 20:12:41,493 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 20:12:41,494 INFO L168 Benchmark]: CACSL2BoogieTranslator took 187.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. [2019-12-07 20:12:41,494 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:12:41,495 INFO L168 Benchmark]: Boogie Preprocessor took 15.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 20:12:41,495 INFO L168 Benchmark]: RCFGBuilder took 180.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. [2019-12-07 20:12:41,495 INFO L168 Benchmark]: TraceAbstraction took 27575.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.0 MB in the end (delta: 133.8 MB). Peak memory consumption was 133.8 MB. Max. memory is 11.5 GB. [2019-12-07 20:12:41,496 INFO L168 Benchmark]: Witness Printer took 48.75 ms. Allocated memory is still 1.1 GB. Free memory was 939.0 MB in the beginning and 935.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 11.5 GB. [2019-12-07 20:12:41,498 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 959.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 187.68 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 99.1 MB). Free memory was 942.1 MB in the beginning and 1.1 GB in the end (delta: -154.5 MB). Peak memory consumption was 20.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.54 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.25 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.08 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 27575.52 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 939.0 MB in the end (delta: 133.8 MB). Peak memory consumption was 133.8 MB. Max. memory is 11.5 GB. * Witness Printer took 48.75 ms. Allocated memory is still 1.1 GB. Free memory was 939.0 MB in the beginning and 935.0 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. 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 [2019-12-07 20:12:41,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,502 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,502 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: 33]: Loop Invariant [2019-12-07 20:12:41,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,503 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 [2019-12-07 20:12:41,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,503 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,504 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 [2019-12-07 20:12:41,504 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,505 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 [2019-12-07 20:12:41,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~R~0,QUANTIFIED] [2019-12-07 20:12:41,506 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 locations, 4 error locations. Result: SAFE, OverallTime: 24.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, HoareTripleCheckerStatistics: 6 SDtfs, 78 SDslu, 11 SDs, 0 SdLazy, 58 SolverSat, 55 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 18.8s 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, 11 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 13 NumberOfFragments, 251 HoareAnnotationTreeSize, 6 FomulaSimplifications, 717 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 4.7s 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...