./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact.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_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/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 12de589994efba7ef02a09446e6dcc495aa77e08 ................................................................................................................................................................................................................................................ 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_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/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 12de589994efba7ef02a09446e6dcc495aa77e08 ........................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:38:35,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:35,397 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:35,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:35,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:35,474 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:35,477 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:35,482 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:35,495 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:35,502 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:35,504 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:35,506 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:35,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:35,512 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:35,514 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:35,516 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:35,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:35,522 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:35,526 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:35,536 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:35,538 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:35,540 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:35,542 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:35,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:35,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:35,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:35,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:35,558 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:35,558 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:35,560 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:35,560 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:35,562 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:35,564 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:35,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:35,567 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:35,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:35,568 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:35,569 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:35,569 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:35,570 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:35,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:35,574 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-28 07:38:35,623 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:35,624 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:35,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:35,625 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:35,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:35,626 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:35,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:38:35,626 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:35,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:35,627 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:38:35,628 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:38:35,628 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:35,629 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:38:35,629 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:38:35,629 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:38:35,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:35,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:35,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:38:35,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:35,631 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:35,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:35,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:35,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:35,632 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:35,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:35,632 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:35,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:35,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:35,633 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:35,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:35,635 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:35,635 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:35,635 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:35,636 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:35,636 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:35,636 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:38:35,636 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:38:35,637 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:35,637 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:35,637 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:35,637 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_b7b623d3-b7f4-48c8-9318-029229e19718/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-11-28 07:38:36,010 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:36,055 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:36,060 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:36,062 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:36,063 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:36,064 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-28 07:38:36,155 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/6cdbef398/b3c25e00e2dd498c9e5b503958599ffd/FLAG4f04ff1ab [2020-11-28 07:38:36,801 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:36,801 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-28 07:38:36,815 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/6cdbef398/b3c25e00e2dd498c9e5b503958599ffd/FLAG4f04ff1ab [2020-11-28 07:38:37,137 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/6cdbef398/b3c25e00e2dd498c9e5b503958599ffd [2020-11-28 07:38:37,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:37,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:37,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:37,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:37,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:37,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,152 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccfed3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37, skipping insertion in model container [2020-11-28 07:38:37,153 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:37,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:37,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:37,364 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:37,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:37,398 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:37,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37 WrapperNode [2020-11-28 07:38:37,399 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:37,401 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:37,401 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:37,401 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:37,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,419 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:37,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:37,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:37,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:37,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,451 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,452 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,457 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... [2020-11-28 07:38:37,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:37,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:37,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:37,465 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:37,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/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 [2020-11-28 07:38:37,554 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:37,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:38:37,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:37,944 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:37,944 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 07:38:37,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:37 BoogieIcfgContainer [2020-11-28 07:38:37,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:37,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:37,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:37,953 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:37,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:37" (1/3) ... [2020-11-28 07:38:37,954 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f33009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:37, skipping insertion in model container [2020-11-28 07:38:37,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:37" (2/3) ... [2020-11-28 07:38:37,955 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65f33009 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:37, skipping insertion in model container [2020-11-28 07:38:37,955 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:37" (3/3) ... [2020-11-28 07:38:37,957 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-11-28 07:38:37,969 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:37,974 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:38:38,009 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:38:38,047 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:38,047 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:38,048 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:38,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:38,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:38,048 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:38,048 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:38,049 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:38,065 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-28 07:38:38,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-28 07:38:38,073 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:38,074 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-28 07:38:38,074 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:38,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:38,083 INFO L82 PathProgramCache]: Analyzing trace with hash 48212, now seen corresponding path program 1 times [2020-11-28 07:38:38,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:38:38,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670440151] [2020-11-28 07:38:38,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:38:38,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:38:38,257 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:38:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:38:38,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:38:38,336 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:38:38,336 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:38:38,337 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:38:38,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:38 BoogieIcfgContainer [2020-11-28 07:38:38,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:38,367 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:38,367 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:38,368 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:38,368 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:37" (3/4) ... [2020-11-28 07:38:38,372 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 07:38:38,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:38,377 INFO L168 Benchmark]: Toolchain (without parser) took 1230.97 ms. Allocated memory is still 83.9 MB. Free memory was 61.0 MB in the beginning and 54.4 MB in the end (delta: 6.6 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:38,379 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 69.2 MB. Free memory was 36.9 MB in the beginning and 36.9 MB in the end (delta: 41.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:38,381 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.34 ms. Allocated memory is still 83.9 MB. Free memory was 60.8 MB in the beginning and 51.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:38,383 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.55 ms. Allocated memory is still 83.9 MB. Free memory was 51.7 MB in the beginning and 50.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:38,385 INFO L168 Benchmark]: Boogie Preprocessor took 23.35 ms. Allocated memory is still 83.9 MB. Free memory was 50.3 MB in the beginning and 49.3 MB in the end (delta: 988.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:38,386 INFO L168 Benchmark]: RCFGBuilder took 482.20 ms. Allocated memory is still 83.9 MB. Free memory was 49.3 MB in the beginning and 37.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:38,387 INFO L168 Benchmark]: TraceAbstraction took 415.86 ms. Allocated memory is still 83.9 MB. Free memory was 37.0 MB in the beginning and 54.8 MB in the end (delta: -17.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:38,389 INFO L168 Benchmark]: Witness Printer took 5.65 ms. Allocated memory is still 83.9 MB. Free memory was 54.8 MB in the beginning and 54.5 MB in the end (delta: 275.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:38,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 69.2 MB. Free memory was 36.9 MB in the beginning and 36.9 MB in the end (delta: 41.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.34 ms. Allocated memory is still 83.9 MB. Free memory was 60.8 MB in the beginning and 51.7 MB in the end (delta: 9.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.55 ms. Allocated memory is still 83.9 MB. Free memory was 51.7 MB in the beginning and 50.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.35 ms. Allocated memory is still 83.9 MB. Free memory was 50.3 MB in the beginning and 49.3 MB in the end (delta: 988.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 482.20 ms. Allocated memory is still 83.9 MB. Free memory was 49.3 MB in the beginning and 37.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 415.86 ms. Allocated memory is still 83.9 MB. Free memory was 37.0 MB in the beginning and 54.8 MB in the end (delta: -17.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.65 ms. Allocated memory is still 83.9 MB. Free memory was 54.8 MB in the beginning and 54.5 MB in the end (delta: 275.7 kB). 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 someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_float_exact.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 [2020-11-28 07:38:41,432 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:38:41,437 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:38:41,502 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:38:41,503 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:38:41,511 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:38:41,514 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:38:41,520 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:38:41,525 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:38:41,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:38:41,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:38:41,543 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:38:41,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:38:41,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:38:41,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:38:41,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:38:41,553 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:38:41,558 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:38:41,561 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:38:41,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:38:41,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:38:41,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:38:41,573 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:38:41,575 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:38:41,578 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:38:41,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:38:41,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:38:41,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:38:41,582 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:38:41,583 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:38:41,584 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:38:41,585 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:38:41,586 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:38:41,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:38:41,589 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:38:41,589 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:38:41,590 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:38:41,591 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:38:41,591 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:38:41,593 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:38:41,594 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:38:41,595 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-28 07:38:41,625 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:38:41,625 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:38:41,626 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:38:41,627 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:38:41,627 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:38:41,628 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:38:41,628 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:38:41,628 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:38:41,628 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:38:41,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:38:41,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:38:41,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:38:41,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:38:41,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:38:41,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:38:41,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:38:41,631 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-28 07:38:41,632 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 07:38:41,632 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 07:38:41,632 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:38:41,633 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:38:41,633 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:38:41,633 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:38:41,634 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:38:41,634 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 07:38:41,634 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:38:41,634 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:38:41,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:38:41,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:38:41,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:38:41,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:38:41,654 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-28 07:38:41,655 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 07:38:41,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:38:41,655 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:38:41,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:38:41,656 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_b7b623d3-b7f4-48c8-9318-029229e19718/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-11-28 07:38:42,096 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:38:42,127 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:38:42,130 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:38:42,131 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:38:42,136 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:38:42,137 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-28 07:38:42,225 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/2e970d9c8/013e8a209eda4445929af74cf5e04383/FLAG8cb3a50ee [2020-11-28 07:38:42,957 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:38:42,957 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-28 07:38:42,965 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/2e970d9c8/013e8a209eda4445929af74cf5e04383/FLAG8cb3a50ee [2020-11-28 07:38:42,988 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/data/2e970d9c8/013e8a209eda4445929af74cf5e04383 [2020-11-28 07:38:42,991 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:38:42,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:38:42,996 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:42,996 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:38:43,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:38:43,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:42" (1/1) ... [2020-11-28 07:38:43,008 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28f03ed6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43, skipping insertion in model container [2020-11-28 07:38:43,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:38:42" (1/1) ... [2020-11-28 07:38:43,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:38:43,034 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:38:43,218 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:43,236 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:38:43,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:38:43,297 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:38:43,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43 WrapperNode [2020-11-28 07:38:43,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:38:43,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:43,326 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:38:43,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:38:43,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,354 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,377 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:38:43,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:38:43,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:38:43,382 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:38:43,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,411 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,411 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,418 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,421 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... [2020-11-28 07:38:43,432 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:38:43,435 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:38:43,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:38:43,436 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:38:43,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/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 [2020-11-28 07:38:43,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:38:43,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:38:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 07:38:43,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:38:44,191 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:38:44,192 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 07:38:44,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:44 BoogieIcfgContainer [2020-11-28 07:38:44,193 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:38:44,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:38:44,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:38:44,202 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:38:44,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:38:42" (1/3) ... [2020-11-28 07:38:44,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b375d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:44, skipping insertion in model container [2020-11-28 07:38:44,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:38:43" (2/3) ... [2020-11-28 07:38:44,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b375d3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:38:44, skipping insertion in model container [2020-11-28 07:38:44,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:44" (3/3) ... [2020-11-28 07:38:44,206 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-11-28 07:38:44,219 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:38:44,224 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 07:38:44,237 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 07:38:44,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:38:44,280 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:38:44,281 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:38:44,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:38:44,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:38:44,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:38:44,282 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:38:44,282 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:38:44,297 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 07:38:44,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 07:38:44,303 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:38:44,304 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 07:38:44,306 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 07:38:44,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:38:44,314 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 07:38:44,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-28 07:38:44,329 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2037993470] [2020-11-28 07:38:44,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/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 [2020-11-28 07:38:44,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:38:44,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 07:38:44,630 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 07:38:44,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:44,724 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 07:38:44,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:38:44,767 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2037993470] [2020-11-28 07:38:44,768 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:38:44,768 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 07:38:44,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459174921] [2020-11-28 07:38:44,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:38:44,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-28 07:38:44,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:38:44,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:38:44,791 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-11-28 07:38:45,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:38:45,157 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-28 07:38:45,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 07:38:45,159 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-28 07:38:45,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:38:45,166 INFO L225 Difference]: With dead ends: 14 [2020-11-28 07:38:45,166 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 07:38:45,170 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:38:45,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 07:38:45,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 07:38:45,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 07:38:45,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 07:38:45,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 07:38:45,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:38:45,199 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 07:38:45,199 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:38:45,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 07:38:45,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 07:38:45,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 07:38:45,426 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 07:38:45,505 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 07:38:45,505 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 07:38:45,505 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 07:38:45,505 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 07:38:45,506 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 07:38:45,506 INFO L270 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-28 07:38:45,506 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-28 07:38:45,506 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-28 07:38:45,507 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 07:38:45,507 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-28 07:38:45,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,519 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:45,521 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:45,523 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,523 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:45,524 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,524 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:45,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:38:45 BoogieIcfgContainer [2020-11-28 07:38:45,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:38:45,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:38:45,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:38:45,527 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:38:45,528 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:38:44" (3/4) ... [2020-11-28 07:38:45,532 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 07:38:45,542 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 07:38:45,556 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 07:38:45,556 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 07:38:45,556 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 07:38:45,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b7b623d3-b7f4-48c8-9318-029229e19718/bin/utaipan/witness.graphml [2020-11-28 07:38:45,603 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:38:45,605 INFO L168 Benchmark]: Toolchain (without parser) took 2610.05 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 27.6 MB in the beginning and 52.8 MB in the end (delta: -25.2 MB). Peak memory consumption was 17.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:45,606 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:45,607 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.94 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 27.5 MB in the beginning and 55.1 MB in the end (delta: -27.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:45,608 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.11 ms. Allocated memory is still 71.3 MB. Free memory was 55.1 MB in the beginning and 53.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:45,609 INFO L168 Benchmark]: Boogie Preprocessor took 52.34 ms. Allocated memory is still 71.3 MB. Free memory was 53.5 MB in the beginning and 52.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:38:45,610 INFO L168 Benchmark]: RCFGBuilder took 758.79 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 41.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:45,611 INFO L168 Benchmark]: TraceAbstraction took 1327.94 ms. Allocated memory is still 71.3 MB. Free memory was 41.4 MB in the beginning and 34.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:45,612 INFO L168 Benchmark]: Witness Printer took 75.84 ms. Allocated memory is still 71.3 MB. Free memory was 34.6 MB in the beginning and 52.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. [2020-11-28 07:38:45,620 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.8 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.94 ms. Allocated memory was 50.3 MB in the beginning and 71.3 MB in the end (delta: 21.0 MB). Free memory was 27.5 MB in the beginning and 55.1 MB in the end (delta: -27.6 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.11 ms. Allocated memory is still 71.3 MB. Free memory was 55.1 MB in the beginning and 53.5 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 52.34 ms. Allocated memory is still 71.3 MB. Free memory was 53.5 MB in the beginning and 52.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 758.79 ms. Allocated memory is still 71.3 MB. Free memory was 52.3 MB in the beginning and 41.9 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1327.94 ms. Allocated memory is still 71.3 MB. Free memory was 41.4 MB in the beginning and 34.6 MB in the end (delta: 6.8 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * Witness Printer took 75.84 ms. Allocated memory is still 71.3 MB. Free memory was 34.6 MB in the beginning and 52.8 MB in the end (delta: -18.1 MB). Peak memory consumption was 4.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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 - InvariantResult [Line: 8]: Loop Invariant [2020-11-28 07:38:45,633 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,633 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:45,633 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,634 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2020-11-28 07:38:45,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 07:38:45,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 07:38:45,635 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 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...