./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3d9dc3c3809104efd72147e46930786d53da3480 ...................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 20:00:54,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 20:00:54,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 20:00:54,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 20:00:54,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 20:00:54,659 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 20:00:54,661 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 20:00:54,662 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 20:00:54,664 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 20:00:54,664 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 20:00:54,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 20:00:54,666 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 20:00:54,667 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 20:00:54,667 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 20:00:54,668 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 20:00:54,669 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 20:00:54,670 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 20:00:54,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 20:00:54,672 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 20:00:54,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 20:00:54,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 20:00:54,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 20:00:54,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 20:00:54,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 20:00:54,680 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 20:00:54,681 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 20:00:54,681 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 20:00:54,682 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 20:00:54,682 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 20:00:54,683 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 20:00:54,683 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 20:00:54,684 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 20:00:54,685 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 20:00:54,686 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 20:00:54,687 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 20:00:54,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 20:00:54,687 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 20:00:54,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 20:00:54,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 20:00:54,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 20:00:54,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 20:00:54,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 20:00:54,707 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 20:00:54,707 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 20:00:54,708 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 20:00:54,708 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 20:00:54,708 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 20:00:54,708 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 20:00:54,709 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 20:00:54,709 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 20:00:54,709 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 20:00:54,709 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 20:00:54,709 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 20:00:54,709 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 20:00:54,709 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 20:00:54,709 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 20:00:54,710 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 20:00:54,710 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 20:00:54,710 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 20:00:54,710 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 20:00:54,711 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 20:00:54,712 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 20:00:54,712 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 20:00:54,712 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 20:00:54,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:00:54,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 20:00:54,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 20:00:54,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 20:00:54,713 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 20:00:54,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 20:00:54,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 20:00:54,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 20:00:54,713 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 20:00:54,713 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3d9dc3c3809104efd72147e46930786d53da3480 [2020-12-09 20:00:54,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 20:00:54,910 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 20:00:54,912 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 20:00:54,913 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 20:00:54,914 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 20:00:54,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c [2020-12-09 20:00:54,963 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/data/d025ff39d/ccc31091e7804706ae9a77f88fedff2e/FLAG029a9d8e4 [2020-12-09 20:00:55,323 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 20:00:55,323 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c [2020-12-09 20:00:55,328 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/data/d025ff39d/ccc31091e7804706ae9a77f88fedff2e/FLAG029a9d8e4 [2020-12-09 20:00:55,337 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/data/d025ff39d/ccc31091e7804706ae9a77f88fedff2e [2020-12-09 20:00:55,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 20:00:55,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 20:00:55,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 20:00:55,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 20:00:55,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 20:00:55,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@469b8b09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55, skipping insertion in model container [2020-12-09 20:00:55,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,352 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 20:00:55,364 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 20:00:55,459 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c[525,538] [2020-12-09 20:00:55,469 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:00:55,478 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 20:00:55,487 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/sv-benchmarks/c/nla-digbench-scaling/geo3-ll_valuebound5.c[525,538] [2020-12-09 20:00:55,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 20:00:55,506 INFO L208 MainTranslator]: Completed translation [2020-12-09 20:00:55,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55 WrapperNode [2020-12-09 20:00:55,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 20:00:55,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 20:00:55,508 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 20:00:55,508 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 20:00:55,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,532 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 20:00:55,533 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 20:00:55,533 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 20:00:55,533 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 20:00:55,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... [2020-12-09 20:00:55,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 20:00:55,553 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 20:00:55,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 20:00:55,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 20:00:55,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 20:00:55,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 20:00:55,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 20:00:55,607 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 20:00:55,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 20:00:55,912 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 20:00:55,913 INFO L299 CfgBuilder]: Removed 15 assume(true) statements. [2020-12-09 20:00:55,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:00:55 BoogieIcfgContainer [2020-12-09 20:00:55,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 20:00:55,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 20:00:55,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 20:00:55,920 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 20:00:55,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:00:55" (1/3) ... [2020-12-09 20:00:55,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104665d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:00:55, skipping insertion in model container [2020-12-09 20:00:55,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:00:55" (2/3) ... [2020-12-09 20:00:55,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@104665d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:00:55, skipping insertion in model container [2020-12-09 20:00:55,922 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:00:55" (3/3) ... [2020-12-09 20:00:55,923 INFO L111 eAbstractionObserver]: Analyzing ICFG geo3-ll_valuebound5.c [2020-12-09 20:00:55,934 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 20:00:55,937 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-12-09 20:00:55,944 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-12-09 20:00:55,959 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 20:00:55,959 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 20:00:55,960 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 20:00:55,960 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 20:00:55,960 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 20:00:55,960 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 20:00:55,960 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 20:00:55,960 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 20:00:55,968 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-12-09 20:00:55,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-12-09 20:00:55,972 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 20:00:55,972 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-12-09 20:00:55,973 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 20:00:55,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 20:00:55,977 INFO L82 PathProgramCache]: Analyzing trace with hash 3279093, now seen corresponding path program 1 times [2020-12-09 20:00:55,983 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 20:00:55,983 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085543360] [2020-12-09 20:00:55,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 20:00:56,033 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-12-09 20:00:56,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [425614876] [2020-12-09 20:00:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 20:00:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 20:00:56,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 20:00:56,078 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 20:00:56,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:00:56,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 20:00:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 20:00:56,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085543360] [2020-12-09 20:00:56,165 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-12-09 20:00:56,165 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425614876] [2020-12-09 20:00:56,165 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-09 20:00:56,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-12-09 20:00:56,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074423271] [2020-12-09 20:00:56,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 20:00:56,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 20:00:56,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 20:00:56,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-12-09 20:00:56,180 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 6 states. [2020-12-09 20:00:56,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 20:00:56,263 INFO L93 Difference]: Finished difference Result 26 states and 35 transitions. [2020-12-09 20:00:56,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 20:00:56,264 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-12-09 20:00:56,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 20:00:56,268 INFO L225 Difference]: With dead ends: 26 [2020-12-09 20:00:56,268 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 20:00:56,270 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-12-09 20:00:56,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 20:00:56,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 20:00:56,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 20:00:56,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 20:00:56,287 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-12-09 20:00:56,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 20:00:56,287 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 20:00:56,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 20:00:56,287 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 20:00:56,287 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 20:00:56,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-12-09 20:00:56,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 20:00:56,649 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 20:00:56,649 INFO L262 CegarLoopResult]: For program point L15(lines 15 18) no Hoare annotation was computed. [2020-12-09 20:00:56,650 INFO L258 CegarLoopResult]: At program point L15-2(lines 39 40) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) [2020-12-09 20:00:56,650 INFO L262 CegarLoopResult]: For program point L15-3(lines 15 18) no Hoare annotation was computed. [2020-12-09 20:00:56,650 INFO L258 CegarLoopResult]: At program point L15-5(lines 14 20) the Hoare annotation is: (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) [2020-12-09 20:00:56,650 INFO L258 CegarLoopResult]: At program point L36-2(lines 36 45) the Hoare annotation is: (or (and (= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (+ (* ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~x~0) ULTIMATE.start_main_~a~0) (+ (* ULTIMATE.start_main_~az~0 ULTIMATE.start_main_~y~0) ULTIMATE.start_main_~x~0))) (and (= ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 1) (= ULTIMATE.start_main_~az~0 (* ULTIMATE.start_main_~a~0 ULTIMATE.start_main_~z~0)))) [2020-12-09 20:00:56,650 INFO L262 CegarLoopResult]: For program point L36-3(lines 36 45) no Hoare annotation was computed. [2020-12-09 20:00:56,650 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 20:00:56,650 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2020-12-09 20:00:56,650 INFO L262 CegarLoopResult]: For program point L16(lines 16 17) no Hoare annotation was computed. [2020-12-09 20:00:56,650 INFO L262 CegarLoopResult]: For program point L16-1(lines 16 17) no Hoare annotation was computed. [2020-12-09 20:00:56,650 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 20:00:56,664 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:00:56 BoogieIcfgContainer [2020-12-09 20:00:56,665 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 20:00:56,665 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 20:00:56,665 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 20:00:56,666 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 20:00:56,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:00:55" (3/4) ... [2020-12-09 20:00:56,669 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 20:00:56,677 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-12-09 20:00:56,678 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-09 20:00:56,678 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-12-09 20:00:56,678 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 20:00:56,713 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cb5497d3-de26-44e5-875c-5ccff263974b/bin/utaipan/witness.graphml [2020-12-09 20:00:56,713 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 20:00:56,714 INFO L168 Benchmark]: Toolchain (without parser) took 1373.14 ms. Allocated memory is still 94.4 MB. Free memory was 54.1 MB in the beginning and 43.7 MB in the end (delta: 10.4 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-12-09 20:00:56,715 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory was 70.5 MB in the beginning and 70.3 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:00:56,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 165.77 ms. Allocated memory is still 94.4 MB. Free memory was 54.0 MB in the beginning and 68.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-12-09 20:00:56,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.89 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 66.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 20:00:56,716 INFO L168 Benchmark]: Boogie Preprocessor took 18.86 ms. Allocated memory is still 94.4 MB. Free memory was 66.6 MB in the beginning and 65.6 MB in the end (delta: 913.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:00:56,717 INFO L168 Benchmark]: RCFGBuilder took 362.42 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 56.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-09 20:00:56,717 INFO L168 Benchmark]: TraceAbstraction took 748.13 ms. Allocated memory is still 94.4 MB. Free memory was 56.1 MB in the beginning and 46.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-12-09 20:00:56,718 INFO L168 Benchmark]: Witness Printer took 47.53 ms. Allocated memory is still 94.4 MB. Free memory was 46.4 MB in the beginning and 43.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 20:00:56,720 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 94.4 MB. Free memory was 70.5 MB in the beginning and 70.3 MB in the end (delta: 125.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 165.77 ms. Allocated memory is still 94.4 MB. Free memory was 54.0 MB in the beginning and 68.3 MB in the end (delta: -14.3 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 24.89 ms. Allocated memory is still 94.4 MB. Free memory was 68.3 MB in the beginning and 66.6 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 18.86 ms. Allocated memory is still 94.4 MB. Free memory was 66.6 MB in the beginning and 65.6 MB in the end (delta: 913.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 362.42 ms. Allocated memory is still 94.4 MB. Free memory was 65.6 MB in the beginning and 56.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 748.13 ms. Allocated memory is still 94.4 MB. Free memory was 56.1 MB in the beginning and 46.4 MB in the end (delta: 9.8 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. * Witness Printer took 47.53 ms. Allocated memory is still 94.4 MB. Free memory was 46.4 MB in the beginning and 43.7 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 17]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 == cond && z * x + a == az * y + x - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: (1 == cond && z * x + a == az * y + x) || ((a == x && y == 1) && az == a * z) - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 == cond && z * x + a == az * y + x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 25 SDslu, 2 SDs, 0 SdLazy, 13 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 9 NumberOfFragments, 58 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 9 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...