./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.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_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/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 3cf66c963cee9d423d7bbfded96bc288d1ae256e ................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/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 3cf66c963cee9d423d7bbfded96bc288d1ae256e ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:59:01,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:01,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:01,729 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:01,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:01,731 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:01,732 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:01,735 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:01,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:01,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:01,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:01,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:01,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:01,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:01,747 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:01,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:01,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:01,755 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:01,759 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:01,766 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:01,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:01,770 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:01,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:01,774 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:01,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:01,784 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:01,784 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:01,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:01,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:01,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:01,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:01,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:01,791 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:01,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:01,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:01,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:01,795 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:01,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:01,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:01,796 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:01,798 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:01,800 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 12:59:01,825 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:01,825 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:01,826 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:01,827 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:01,827 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:01,827 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:01,827 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 12:59:01,827 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:01,827 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:01,828 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 12:59:01,828 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 12:59:01,828 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:01,828 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 12:59:01,828 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 12:59:01,829 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 12:59:01,829 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:01,829 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:01,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 12:59:01,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:01,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:01,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:01,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:01,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:01,831 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:01,832 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:01,832 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:01,832 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:01,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:01,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:01,835 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:01,835 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:01,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:01,836 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:01,836 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:01,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:01,836 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 12:59:01,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 12:59:01,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:01,837 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:01,837 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:01,837 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_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-11-22 12:59:02,150 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:02,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:02,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:02,192 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:02,201 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:02,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-22 12:59:02,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/da1253f36/d61a2855af1740278485ec6057c871de/FLAGe5e13c58f [2020-11-22 12:59:02,805 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:02,806 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-22 12:59:02,816 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/da1253f36/d61a2855af1740278485ec6057c871de/FLAGe5e13c58f [2020-11-22 12:59:03,183 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/da1253f36/d61a2855af1740278485ec6057c871de [2020-11-22 12:59:03,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:03,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:03,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:03,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:03,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:03,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,203 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@303cf519 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03, skipping insertion in model container [2020-11-22 12:59:03,204 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:03,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:03,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:03,403 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:59:03,431 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:03,445 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:59:03,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03 WrapperNode [2020-11-22 12:59:03,445 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:03,447 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:03,447 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:59:03,447 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:59:03,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:03,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:59:03,476 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:59:03,476 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:59:03,484 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,485 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,486 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,489 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,490 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,491 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... [2020-11-22 12:59:03,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:59:03,493 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:59:03,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:59:03,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:59:03,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:03,578 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:59:03,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:59:03,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 12:59:03,579 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:59:03,917 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:59:03,917 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-22 12:59:03,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:03 BoogieIcfgContainer [2020-11-22 12:59:03,919 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:59:03,921 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:59:03,921 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:59:03,925 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:59:03,925 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:59:03" (1/3) ... [2020-11-22 12:59:03,926 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201f8c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:03, skipping insertion in model container [2020-11-22 12:59:03,926 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:03" (2/3) ... [2020-11-22 12:59:03,927 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@201f8c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:03, skipping insertion in model container [2020-11-22 12:59:03,927 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:03" (3/3) ... [2020-11-22 12:59:03,928 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-11-22 12:59:03,939 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:59:03,943 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:59:03,955 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:59:03,989 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:59:03,989 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:59:03,989 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:59:03,989 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:59:03,989 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:59:03,990 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:59:03,990 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:59:03,990 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:59:04,004 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-22 12:59:04,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-22 12:59:04,010 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:04,011 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-22 12:59:04,012 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:04,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:04,020 INFO L82 PathProgramCache]: Analyzing trace with hash 44367, now seen corresponding path program 1 times [2020-11-22 12:59:04,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 12:59:04,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289193584] [2020-11-22 12:59:04,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 12:59:04,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:04,153 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:04,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 12:59:04,188 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 12:59:04,214 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 12:59:04,215 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 12:59:04,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 12:59:04,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:59:04 BoogieIcfgContainer [2020-11-22 12:59:04,237 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:59:04,239 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:59:04,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:59:04,240 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:59:04,240 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:03" (3/4) ... [2020-11-22 12:59:04,243 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 12:59:04,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:59:04,247 INFO L168 Benchmark]: Toolchain (without parser) took 1057.82 ms. Allocated memory is still 107.0 MB. Free memory was 79.6 MB in the beginning and 59.8 MB in the end (delta: 19.7 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:04,250 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:04,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.95 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 86.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:04,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.84 ms. Allocated memory is still 107.0 MB. Free memory was 85.6 MB in the beginning and 84.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:04,254 INFO L168 Benchmark]: Boogie Preprocessor took 16.78 ms. Allocated memory is still 107.0 MB. Free memory was 84.5 MB in the beginning and 83.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:04,255 INFO L168 Benchmark]: RCFGBuilder took 425.97 ms. Allocated memory is still 107.0 MB. Free memory was 83.5 MB in the beginning and 72.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:04,256 INFO L168 Benchmark]: TraceAbstraction took 315.92 ms. Allocated memory is still 107.0 MB. Free memory was 71.9 MB in the beginning and 60.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:04,257 INFO L168 Benchmark]: Witness Printer took 4.42 ms. Allocated memory is still 107.0 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:04,267 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 81.8 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 75.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.95 ms. Allocated memory is still 107.0 MB. Free memory was 79.2 MB in the beginning and 86.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.84 ms. Allocated memory is still 107.0 MB. Free memory was 85.6 MB in the beginning and 84.5 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 16.78 ms. Allocated memory is still 107.0 MB. Free memory was 84.5 MB in the beginning and 83.5 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 425.97 ms. Allocated memory is still 107.0 MB. Free memory was 83.5 MB in the beginning and 72.4 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 315.92 ms. Allocated memory is still 107.0 MB. Free memory was 71.9 MB in the beginning and 60.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 4.42 ms. Allocated memory is still 107.0 MB. Free memory is still 60.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 9, overapproximation of to_real at line 10. Possible FailurePath: [L6] unsigned int i, j; [L7] double d; [L9] i=100.0 [L10] d=i [L11] j=d [L12] COND TRUE !(j==100) [L3] __assert_fail("0", "float-no-simp1.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 12:59:06,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 12:59:06,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 12:59:06,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 12:59:06,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 12:59:06,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 12:59:06,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 12:59:06,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 12:59:06,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 12:59:06,607 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 12:59:06,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 12:59:06,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 12:59:06,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 12:59:06,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 12:59:06,614 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 12:59:06,615 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 12:59:06,617 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 12:59:06,618 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 12:59:06,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 12:59:06,623 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 12:59:06,626 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 12:59:06,627 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 12:59:06,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 12:59:06,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 12:59:06,634 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 12:59:06,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 12:59:06,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 12:59:06,636 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 12:59:06,637 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 12:59:06,638 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 12:59:06,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 12:59:06,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 12:59:06,641 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 12:59:06,642 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 12:59:06,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 12:59:06,646 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 12:59:06,647 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 12:59:06,647 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 12:59:06,648 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 12:59:06,649 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 12:59:06,650 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 12:59:06,652 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 12:59:06,694 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 12:59:06,694 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 12:59:06,695 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 12:59:06,695 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 12:59:06,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 12:59:06,696 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 12:59:06,696 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 12:59:06,696 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 12:59:06,696 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 12:59:06,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 12:59:06,697 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 12:59:06,698 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 12:59:06,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 12:59:06,698 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 12:59:06,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 12:59:06,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 12:59:06,699 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 12:59:06,699 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 12:59:06,699 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 12:59:06,699 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 12:59:06,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 12:59:06,700 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 12:59:06,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 12:59:06,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 12:59:06,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 12:59:06,701 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 12:59:06,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 12:59:06,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:06,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 12:59:06,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 12:59:06,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 12:59:06,702 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 12:59:06,703 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 12:59:06,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 12:59:06,703 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 12:59:06,703 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 12:59:06,704 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cf66c963cee9d423d7bbfded96bc288d1ae256e [2020-11-22 12:59:07,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 12:59:07,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 12:59:07,153 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 12:59:07,154 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 12:59:07,156 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 12:59:07,156 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-22 12:59:07,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/e7cfacd73/b6373984f27f4fd193c30e3c3fed7caf/FLAGb9152e925 [2020-11-22 12:59:07,662 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 12:59:07,663 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/sv-benchmarks/c/floats-cbmc-regression/float-no-simp1.c [2020-11-22 12:59:07,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/e7cfacd73/b6373984f27f4fd193c30e3c3fed7caf/FLAGb9152e925 [2020-11-22 12:59:08,066 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/data/e7cfacd73/b6373984f27f4fd193c30e3c3fed7caf [2020-11-22 12:59:08,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 12:59:08,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 12:59:08,077 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:08,078 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 12:59:08,081 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 12:59:08,083 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,085 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c2e59de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08, skipping insertion in model container [2020-11-22 12:59:08,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 12:59:08,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 12:59:08,264 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:08,278 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 12:59:08,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 12:59:08,309 INFO L208 MainTranslator]: Completed translation [2020-11-22 12:59:08,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08 WrapperNode [2020-11-22 12:59:08,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 12:59:08,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:08,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 12:59:08,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 12:59:08,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,327 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 12:59:08,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 12:59:08,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 12:59:08,365 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 12:59:08,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,389 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,409 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,411 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,419 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... [2020-11-22 12:59:08,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 12:59:08,424 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 12:59:08,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 12:59:08,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 12:59:08,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 12:59:08,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 12:59:08,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 12:59:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 12:59:08,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 12:59:08,936 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 12:59:08,936 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-22 12:59:08,937 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:08 BoogieIcfgContainer [2020-11-22 12:59:08,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 12:59:08,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 12:59:08,939 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 12:59:08,942 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 12:59:08,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:59:08" (1/3) ... [2020-11-22 12:59:08,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39dd10a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:08, skipping insertion in model container [2020-11-22 12:59:08,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:59:08" (2/3) ... [2020-11-22 12:59:08,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39dd10a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:59:08, skipping insertion in model container [2020-11-22 12:59:08,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:08" (3/3) ... [2020-11-22 12:59:08,946 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp1.c [2020-11-22 12:59:08,956 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 12:59:08,960 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 12:59:08,972 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 12:59:08,993 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 12:59:08,993 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 12:59:08,994 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 12:59:08,994 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 12:59:08,994 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 12:59:08,994 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 12:59:08,994 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 12:59:08,995 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 12:59:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-11-22 12:59:09,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 12:59:09,009 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 12:59:09,009 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 12:59:09,010 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 12:59:09,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 12:59:09,016 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-22 12:59:09,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 12:59:09,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [373940142] [2020-11-22 12:59:09,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 12:59:09,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 12:59:09,104 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 12:59:09,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 12:59:09,195 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 12:59:09,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 12:59:09,247 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 12:59:09,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [373940142] [2020-11-22 12:59:09,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 12:59:09,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 12:59:09,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703909129] [2020-11-22 12:59:09,254 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 12:59:09,254 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 12:59:09,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 12:59:09,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:09,269 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 4 states. [2020-11-22 12:59:09,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 12:59:09,306 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2020-11-22 12:59:09,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 12:59:09,308 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-22 12:59:09,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 12:59:09,312 INFO L225 Difference]: With dead ends: 12 [2020-11-22 12:59:09,313 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 12:59:09,315 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=5, Unknown=0, NotChecked=0, Total=12 [2020-11-22 12:59:09,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 12:59:09,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 12:59:09,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 12:59:09,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 12:59:09,346 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-22 12:59:09,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 12:59:09,346 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 12:59:09,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 12:59:09,346 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 12:59:09,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 12:59:09,560 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 12:59:09,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 12:59:09,565 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 12:59:09,565 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 12:59:09,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 12:59:09,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 12:59:09,566 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 12:59:09,566 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-22 12:59:09,566 INFO L274 CegarLoopResult]: For program point L4(lines 4 13) no Hoare annotation was computed. [2020-11-22 12:59:09,567 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 12:59:09,567 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 12:59:09,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:59:09 BoogieIcfgContainer [2020-11-22 12:59:09,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 12:59:09,572 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 12:59:09,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 12:59:09,573 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 12:59:09,573 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:59:08" (3/4) ... [2020-11-22 12:59:09,576 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 12:59:09,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-22 12:59:09,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 12:59:09,589 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 12:59:09,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 12:59:09,635 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4d84e45a-18c6-45d2-a61b-2fa12fd3fc3f/bin/utaipan/witness.graphml [2020-11-22 12:59:09,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 12:59:09,638 INFO L168 Benchmark]: Toolchain (without parser) took 1563.78 ms. Allocated memory is still 81.8 MB. Free memory was 65.9 MB in the beginning and 61.4 MB in the end (delta: 4.5 MB). Peak memory consumption was 6.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:09,638 INFO L168 Benchmark]: CDTParser took 0.51 ms. Allocated memory is still 58.7 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:09,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.74 ms. Allocated memory is still 81.8 MB. Free memory was 65.6 MB in the beginning and 56.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:09,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.85 ms. Allocated memory is still 81.8 MB. Free memory was 56.2 MB in the beginning and 66.9 MB in the end (delta: -10.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:09,640 INFO L168 Benchmark]: Boogie Preprocessor took 58.36 ms. Allocated memory is still 81.8 MB. Free memory was 66.6 MB in the beginning and 65.6 MB in the end (delta: 988.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:09,641 INFO L168 Benchmark]: RCFGBuilder took 514.18 ms. Allocated memory is still 81.8 MB. Free memory was 65.6 MB in the beginning and 55.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:09,641 INFO L168 Benchmark]: TraceAbstraction took 632.25 ms. Allocated memory is still 81.8 MB. Free memory was 54.8 MB in the beginning and 64.0 MB in the end (delta: -9.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 12:59:09,642 INFO L168 Benchmark]: Witness Printer took 63.75 ms. Allocated memory is still 81.8 MB. Free memory was 64.0 MB in the beginning and 61.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-22 12:59:09,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.51 ms. Allocated memory is still 58.7 MB. Free memory is still 41.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 232.74 ms. Allocated memory is still 81.8 MB. Free memory was 65.6 MB in the beginning and 56.2 MB in the end (delta: 9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.85 ms. Allocated memory is still 81.8 MB. Free memory was 56.2 MB in the beginning and 66.9 MB in the end (delta: -10.6 MB). Peak memory consumption was 4.9 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.36 ms. Allocated memory is still 81.8 MB. Free memory was 66.6 MB in the beginning and 65.6 MB in the end (delta: 988.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 514.18 ms. Allocated memory is still 81.8 MB. Free memory was 65.6 MB in the beginning and 55.1 MB in the end (delta: 10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 632.25 ms. Allocated memory is still 81.8 MB. Free memory was 54.8 MB in the beginning and 64.0 MB in the end (delta: -9.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 63.75 ms. Allocated memory is still 81.8 MB. Free memory was 64.0 MB in the beginning and 61.4 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 3 SDslu, 1 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred 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, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 57 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 4 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...