./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c -s /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/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 4b6862f1034c84e497deb43adcccfe361c2f86c9 .......................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:04:34,612 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:04:34,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:04:34,703 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:04:34,704 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:04:34,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:04:34,708 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:04:34,710 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:04:34,712 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:04:34,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:04:34,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:04:34,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:04:34,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:04:34,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:04:34,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:04:34,721 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:04:34,722 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:04:34,723 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:04:34,725 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:04:34,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:04:34,729 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:04:34,730 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:04:34,732 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:04:34,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:04:34,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:04:34,737 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:04:34,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:04:34,739 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:04:34,739 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:04:34,740 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:04:34,741 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:04:34,742 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:04:34,743 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:04:34,744 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:04:34,745 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:04:34,745 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:04:34,746 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:04:34,747 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:04:34,747 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:04:34,748 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:04:34,749 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:04:34,750 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:04:34,774 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:04:34,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:04:34,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:04:34,776 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:04:34,777 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:04:34,777 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:04:34,778 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:04:34,778 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:04:34,778 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:04:34,779 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:04:34,779 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:04:34,780 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:04:34,780 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:04:34,780 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:04:34,781 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:04:34,782 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:04:34,782 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:04:34,782 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:04:34,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:04:34,783 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:04:34,783 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:04:34,783 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:04:34,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:04:34,783 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:04:34,784 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:04:34,784 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:04:34,784 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:04:34,784 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:04:34,785 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:04:34,785 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:04:34,785 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:04:34,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:34,786 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:04:34,786 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:04:34,786 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:04:34,786 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:04:34,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:04:34,787 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:04:34,787 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:04:34,787 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:04:34,788 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_42970b53-2ae0-47a3-bac0-e243d00cf841/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b6862f1034c84e497deb43adcccfe361c2f86c9 [2020-11-22 13:04:35,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:04:35,052 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:04:35,054 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:04:35,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:04:35,056 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:04:35,057 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/../../sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c [2020-11-22 13:04:35,131 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/data/31ee1ded9/141479d76cce4d499df9d1bbd845f72b/FLAG759c8df8d [2020-11-22 13:04:35,530 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:04:35,531 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/sv-benchmarks/c/nla-digbench-scaling/ps3-ll_valuebound10.c [2020-11-22 13:04:35,536 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/data/31ee1ded9/141479d76cce4d499df9d1bbd845f72b/FLAG759c8df8d [2020-11-22 13:04:35,966 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/data/31ee1ded9/141479d76cce4d499df9d1bbd845f72b [2020-11-22 13:04:35,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:04:35,970 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:04:35,972 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:35,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:04:35,975 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:04:35,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:35" (1/1) ... [2020-11-22 13:04:35,978 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@761d9f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:35, skipping insertion in model container [2020-11-22 13:04:35,978 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:04:35" (1/1) ... [2020-11-22 13:04:35,985 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:04:35,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:04:36,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:36,190 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:04:36,208 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:04:36,221 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:04:36,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36 WrapperNode [2020-11-22 13:04:36,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:04:36,223 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:36,224 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:04:36,224 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:04:36,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,263 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:04:36,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:04:36,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:04:36,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:04:36,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,295 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,298 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... [2020-11-22 13:04:36,301 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:04:36,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:04:36,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:04:36,302 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:04:36,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:04:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:04:36,384 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:04:36,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:04:36,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:04:36,792 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:04:36,793 INFO L298 CfgBuilder]: Removed 15 assume(true) statements. [2020-11-22 13:04:36,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:36 BoogieIcfgContainer [2020-11-22 13:04:36,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:04:36,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:04:36,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:04:36,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:04:36,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:04:35" (1/3) ... [2020-11-22 13:04:36,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c6340e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:36, skipping insertion in model container [2020-11-22 13:04:36,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:04:36" (2/3) ... [2020-11-22 13:04:36,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c6340e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:04:36, skipping insertion in model container [2020-11-22 13:04:36,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:36" (3/3) ... [2020-11-22 13:04:36,803 INFO L111 eAbstractionObserver]: Analyzing ICFG ps3-ll_valuebound10.c [2020-11-22 13:04:36,813 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:04:36,820 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-11-22 13:04:36,832 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-22 13:04:36,855 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:04:36,855 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:04:36,855 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:04:36,855 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:04:36,855 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:04:36,856 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:04:36,856 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:04:36,856 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:04:36,868 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2020-11-22 13:04:36,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 13:04:36,872 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:36,873 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 13:04:36,873 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:36,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:36,879 INFO L82 PathProgramCache]: Analyzing trace with hash 2699162, now seen corresponding path program 1 times [2020-11-22 13:04:36,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:36,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607909240] [2020-11-22 13:04:36,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:36,975 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:04:36,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87188956] [2020-11-22 13:04:36,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:37,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-22 13:04:37,053 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:37,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:37,142 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:37,159 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:04:37,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:37,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607909240] [2020-11-22 13:04:37,181 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:04:37,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87188956] [2020-11-22 13:04:37,182 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:04:37,182 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:04:37,183 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767379175] [2020-11-22 13:04:37,186 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-22 13:04:37,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:37,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-22 13:04:37,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-22 13:04:37,209 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2020-11-22 13:04:39,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:39,453 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2020-11-22 13:04:39,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-22 13:04:39,455 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-22 13:04:39,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:39,464 INFO L225 Difference]: With dead ends: 38 [2020-11-22 13:04:39,465 INFO L226 Difference]: Without dead ends: 17 [2020-11-22 13:04:39,468 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-22 13:04:39,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-22 13:04:39,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2020-11-22 13:04:39,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-22 13:04:39,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-11-22 13:04:39,503 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 4 [2020-11-22 13:04:39,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:39,503 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-11-22 13:04:39,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-22 13:04:39,504 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-11-22 13:04:39,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-22 13:04:39,504 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:04:39,504 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1] [2020-11-22 13:04:39,721 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2020-11-22 13:04:39,721 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:04:39,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:04:39,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1782095290, now seen corresponding path program 1 times [2020-11-22 13:04:39,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:04:39,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715895764] [2020-11-22 13:04:39,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:04:39,735 ERROR L270 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-11-22 13:04:39,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1701616203] [2020-11-22 13:04:39,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:39,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:04:39,820 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 25 conjunts are in the unsatisfiable core [2020-11-22 13:04:39,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:04:39,944 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:04:39,944 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:04:39,960 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:04:40,075 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-11-22 13:04:40,077 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-22 13:04:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-22 13:04:40,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715895764] [2020-11-22 13:04:40,082 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:04:40,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1701616203] [2020-11-22 13:04:40,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [620881991] [2020-11-22 13:04:40,121 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2020-11-22 13:04:40,121 INFO L166 IcfgInterpreter]: Building call graph [2020-11-22 13:04:40,125 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-11-22 13:04:40,131 INFO L176 IcfgInterpreter]: Starting interpretation [2020-11-22 13:04:40,131 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-11-22 13:04:40,261 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 13:04:40,280 WARN L234 Elim1Store]: Array PQE input equivalent to false [2020-11-22 13:04:40,879 INFO L180 IcfgInterpreter]: Interpretation finished [2020-11-22 13:04:41,879 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 56 [2020-11-22 13:04:42,602 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 94 [2020-11-22 13:04:44,073 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 131 DAG size of output: 97 [2020-11-22 13:04:44,253 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2020-11-22 13:04:44,255 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2020-11-22 13:04:44,255 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-22 13:04:44,255 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 9 [2020-11-22 13:04:44,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359150852] [2020-11-22 13:04:44,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-22 13:04:44,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:04:44,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-22 13:04:44,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2020-11-22 13:04:44,258 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2020-11-22 13:04:46,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:04:46,475 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2020-11-22 13:04:46,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-22 13:04:46,475 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 10 [2020-11-22 13:04:46,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:04:46,476 INFO L225 Difference]: With dead ends: 21 [2020-11-22 13:04:46,476 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:04:46,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2020-11-22 13:04:46,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:04:46,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:04:46,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:04:46,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:04:46,478 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-11-22 13:04:46,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:04:46,478 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:04:46,479 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-22 13:04:46,479 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:04:46,479 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:04:46,679 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-22 13:04:46,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:04:46,864 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 21 [2020-11-22 13:04:46,866 INFO L270 CegarLoopResult]: At program point L27-2(lines 27 36) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~x~0 0) (= ULTIMATE.start_main_~y~0 0)) (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~x~0 6) (+ (* (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 2) (* (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 3) ULTIMATE.start_main_~y~0)))) [2020-11-22 13:04:46,866 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:04:46,866 INFO L274 CegarLoopResult]: For program point L27-3(lines 27 36) no Hoare annotation was computed. [2020-11-22 13:04:46,866 INFO L274 CegarLoopResult]: For program point L11(lines 11 12) no Hoare annotation was computed. [2020-11-22 13:04:46,866 INFO L274 CegarLoopResult]: For program point L11-1(lines 11 12) no Hoare annotation was computed. [2020-11-22 13:04:46,866 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:04:46,867 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:04:46,867 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:04:46,867 INFO L274 CegarLoopResult]: For program point L10(lines 10 13) no Hoare annotation was computed. [2020-11-22 13:04:46,867 INFO L270 CegarLoopResult]: At program point L10-1(lines 30 31) the Hoare annotation is: (and (<= 1 ULTIMATE.start___VERIFIER_assert_~cond) (= (* ULTIMATE.start_main_~x~0 6) (+ (* (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 2) (* (* ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) 3) ULTIMATE.start_main_~y~0))) [2020-11-22 13:04:46,867 INFO L274 CegarLoopResult]: For program point L10-2(lines 10 13) no Hoare annotation was computed. [2020-11-22 13:04:46,867 INFO L277 CegarLoopResult]: At program point L10-3(lines 9 15) the Hoare annotation is: true [2020-11-22 13:04:46,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:04:46 BoogieIcfgContainer [2020-11-22 13:04:46,882 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:04:46,883 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:04:46,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:04:46,883 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:04:46,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:04:36" (3/4) ... [2020-11-22 13:04:46,886 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:04:46,895 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-11-22 13:04:46,895 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-22 13:04:46,895 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:04:46,895 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:04:46,945 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_42970b53-2ae0-47a3-bac0-e243d00cf841/bin/utaipan/witness.graphml [2020-11-22 13:04:46,945 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:04:46,946 INFO L168 Benchmark]: Toolchain (without parser) took 10976.02 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 60.0 MB in the beginning and 89.2 MB in the end (delta: -29.3 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:46,947 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 47.7 MB in the beginning and 47.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:46,948 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.10 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 67.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:46,948 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.22 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:46,948 INFO L168 Benchmark]: Boogie Preprocessor took 36.16 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:04:46,949 INFO L168 Benchmark]: RCFGBuilder took 492.96 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 49.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:46,949 INFO L168 Benchmark]: TraceAbstraction took 10086.43 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 48.9 MB in the beginning and 91.3 MB in the end (delta: -42.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:46,950 INFO L168 Benchmark]: Witness Printer took 62.58 ms. Allocated memory is still 136.3 MB. Free memory was 91.3 MB in the beginning and 89.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:04:46,953 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 90.2 MB. Free memory was 47.7 MB in the beginning and 47.7 MB in the end (delta: 33.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 251.10 ms. Allocated memory is still 90.2 MB. Free memory was 59.6 MB in the beginning and 67.8 MB in the end (delta: -8.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.22 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.16 ms. Allocated memory is still 90.2 MB. Free memory was 66.5 MB in the beginning and 65.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 492.96 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 49.3 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 10086.43 ms. Allocated memory was 90.2 MB in the beginning and 136.3 MB in the end (delta: 46.1 MB). Free memory was 48.9 MB in the beginning and 91.3 MB in the end (delta: -42.5 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Witness Printer took 62.58 ms. Allocated memory is still 136.3 MB. Free memory was 91.3 MB in the beginning and 89.2 MB in the end (delta: 2.1 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 <= cond && x * 6 == y * y * y * 2 + y * y * 3 + y - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (x == 0 && y == 0) || (1 <= cond && x * 6 == y * y * y * 2 + y * y * 3 + y) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 9.8s, OverallIterations: 2, TraceHistogramMax: 3, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 34 SDslu, 24 SDs, 0 SdLazy, 55 SolverSat, 30 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 3.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 14 NumberOfFragments, 51 HoareAnnotationTreeSize, 3 FomulaSimplifications, 61 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 39 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1257 SizeOfPredicates, 13 NumberOfNonLiveVariables, 126 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 6/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...