./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.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_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb25cff741a4983d608d95bf512bab62b5988d3b ................................................................................................................................................................................................................................... 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_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb25cff741a4983d608d95bf512bab62b5988d3b ......................................................................................................................................................................................................................................................................................................... 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 03:08:17,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:17,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:17,519 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:17,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:17,522 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:17,523 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:17,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:17,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:17,542 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:17,543 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:17,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:17,547 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:17,551 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:17,552 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:17,554 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:17,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:17,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:17,562 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:17,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:17,572 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:17,573 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:17,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:17,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:17,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:17,580 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:17,581 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:17,583 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:17,583 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:17,590 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:17,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:17,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:17,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:17,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:17,597 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:17,597 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:17,598 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:17,598 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:17,598 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:17,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:17,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:17,604 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:08:17,642 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:17,642 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:17,644 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:17,644 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:17,644 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:17,645 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:17,645 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:17,645 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:08:17,645 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:17,646 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:17,647 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:17,647 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:17,647 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:17,647 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:17,648 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:17,648 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:17,648 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:17,648 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:17,648 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:17,649 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:17,649 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:17,649 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:17,649 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:17,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:17,650 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:17,650 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:08:17,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:08:17,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:17,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:17,651 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb25cff741a4983d608d95bf512bab62b5988d3b [2020-11-28 03:08:17,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:18,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:18,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:18,007 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:18,008 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:18,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-28 03:08:18,093 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/ca1ced32f/332952c4ed9d42ec9949b68bec110669/FLAGd2a3b2115 [2020-11-28 03:08:18,635 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:18,636 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-28 03:08:18,647 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/ca1ced32f/332952c4ed9d42ec9949b68bec110669/FLAGd2a3b2115 [2020-11-28 03:08:19,013 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/ca1ced32f/332952c4ed9d42ec9949b68bec110669 [2020-11-28 03:08:19,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:19,017 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:19,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:19,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:19,023 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:19,024 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,026 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60c5daa3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19, skipping insertion in model container [2020-11-28 03:08:19,026 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,034 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:19,045 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:19,249 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:19,260 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:19,278 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:19,291 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:19,292 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19 WrapperNode [2020-11-28 03:08:19,292 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:19,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:19,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:19,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:19,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:19,332 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:19,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:19,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:19,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,344 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... [2020-11-28 03:08:19,346 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:19,347 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:19,347 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:19,348 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:19,348 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/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 03:08:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:19,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:08:19,412 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:19,690 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:19,690 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:08:19,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:19 BoogieIcfgContainer [2020-11-28 03:08:19,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:19,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:19,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:19,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:19,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:19" (1/3) ... [2020-11-28 03:08:19,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f3fc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:19, skipping insertion in model container [2020-11-28 03:08:19,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:19" (2/3) ... [2020-11-28 03:08:19,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73f3fc7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:19, skipping insertion in model container [2020-11-28 03:08:19,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:19" (3/3) ... [2020-11-28 03:08:19,699 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-11-28 03:08:19,726 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:19,729 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:19,756 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:19,784 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:19,784 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:19,785 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:19,786 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:19,786 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:19,787 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:19,787 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:19,787 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:08:19,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:08:19,804 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:19,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:08:19,806 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:19,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:19,812 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 03:08:19,821 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:08:19,822 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589751648] [2020-11-28 03:08:19,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:08:19,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:19,911 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:19,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:08:19,927 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:08:19,953 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:08:19,953 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:08:19,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:08:19,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:19 BoogieIcfgContainer [2020-11-28 03:08:19,977 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:19,979 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:19,979 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:19,979 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:19,980 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:19" (3/4) ... [2020-11-28 03:08:19,983 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:08:19,983 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:19,987 INFO L168 Benchmark]: Toolchain (without parser) took 966.29 ms. Allocated memory is still 115.3 MB. Free memory was 84.2 MB in the beginning and 66.6 MB in the end (delta: 17.6 MB). Peak memory consumption was 15.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:19,988 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 79.7 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:19,990 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.27 ms. Allocated memory is still 115.3 MB. Free memory was 84.0 MB in the beginning and 90.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:19,991 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.43 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 89.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:19,992 INFO L168 Benchmark]: Boogie Preprocessor took 14.06 ms. Allocated memory is still 115.3 MB. Free memory was 89.6 MB in the beginning and 88.7 MB in the end (delta: 914.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:19,993 INFO L168 Benchmark]: RCFGBuilder took 344.19 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 78.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:19,994 INFO L168 Benchmark]: TraceAbstraction took 284.11 ms. Allocated memory is still 115.3 MB. Free memory was 78.3 MB in the beginning and 67.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:19,995 INFO L168 Benchmark]: Witness Printer took 4.38 ms. Allocated memory is still 115.3 MB. Free memory was 67.1 MB in the beginning and 66.6 MB in the end (delta: 460.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:20,009 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 79.7 MB. Free memory was 38.2 MB in the beginning and 38.2 MB in the end (delta: 36.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.27 ms. Allocated memory is still 115.3 MB. Free memory was 84.0 MB in the beginning and 90.9 MB in the end (delta: -6.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.43 ms. Allocated memory is still 115.3 MB. Free memory was 90.9 MB in the beginning and 89.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 14.06 ms. Allocated memory is still 115.3 MB. Free memory was 89.6 MB in the beginning and 88.7 MB in the end (delta: 914.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 344.19 ms. Allocated memory is still 115.3 MB. Free memory was 88.7 MB in the beginning and 78.8 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 284.11 ms. Allocated memory is still 115.3 MB. Free memory was 78.3 MB in the beginning and 67.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.38 ms. Allocated memory is still 115.3 MB. Free memory was 67.1 MB in the beginning and 66.6 MB in the end (delta: 460.4 kB). Peak memory consumption was 2.1 MB. 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 someBinaryDOUBLEComparisonOperation at line 11, overapproximation of someUnaryDOUBLEoperation at line 8, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; [L11] COND TRUE !(d == fp) [L3] __assert_fail("0", "float-to-double2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, 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=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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 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 03:08:22,383 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:08:22,387 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:08:22,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:08:22,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:08:22,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:08:22,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:08:22,439 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:08:22,441 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:08:22,442 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:08:22,444 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:08:22,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:08:22,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:08:22,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:08:22,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:08:22,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:08:22,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:08:22,463 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:08:22,466 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:08:22,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:08:22,482 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:08:22,484 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:08:22,485 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:08:22,486 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:08:22,490 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:08:22,490 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:08:22,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:08:22,492 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:08:22,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:08:22,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:08:22,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:08:22,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:08:22,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:08:22,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:08:22,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:08:22,503 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:08:22,504 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:08:22,504 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:08:22,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:08:22,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:08:22,507 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:08:22,508 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:08:22,557 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:08:22,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:08:22,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:08:22,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:08:22,561 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:08:22,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:08:22,561 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:08:22,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:08:22,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:08:22,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:08:22,563 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:08:22,563 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:08:22,563 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:08:22,563 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:08:22,563 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:08:22,564 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:08:22,564 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:08:22,564 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:08:22,564 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:08:22,564 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:08:22,564 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:08:22,565 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:08:22,565 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:08:22,565 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:08:22,565 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:08:22,565 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:08:22,566 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:08:22,566 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:08:22,566 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:08:22,566 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:08:22,566 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:08:22,567 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_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb25cff741a4983d608d95bf512bab62b5988d3b [2020-11-28 03:08:22,949 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:08:22,973 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:08:22,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:08:22,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:08:22,977 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:08:22,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-28 03:08:23,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/bd835d091/d62fd6252f1343b5aa1dc0345129762d/FLAGf7845968e [2020-11-28 03:08:23,591 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:08:23,591 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-28 03:08:23,598 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/bd835d091/d62fd6252f1343b5aa1dc0345129762d/FLAGf7845968e [2020-11-28 03:08:23,947 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/data/bd835d091/d62fd6252f1343b5aa1dc0345129762d [2020-11-28 03:08:23,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:08:23,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:08:23,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:23,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:08:23,957 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:08:23,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:23" (1/1) ... [2020-11-28 03:08:23,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa78b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:23, skipping insertion in model container [2020-11-28 03:08:23,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:08:23" (1/1) ... [2020-11-28 03:08:23,976 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:08:23,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:08:24,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:24,149 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:08:24,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:08:24,214 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:08:24,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24 WrapperNode [2020-11-28 03:08:24,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:08:24,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:24,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:08:24,238 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:08:24,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:08:24,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:08:24,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:08:24,271 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:08:24,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,290 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... [2020-11-28 03:08:24,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:08:24,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:08:24,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:08:24,294 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:08:24,295 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/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 03:08:24,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:08:24,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:08:24,364 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:08:24,368 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:08:24,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:08:24,786 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:08:24,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:24 BoogieIcfgContainer [2020-11-28 03:08:24,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:08:24,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:08:24,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:08:24,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:08:24,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:08:23" (1/3) ... [2020-11-28 03:08:24,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc1edeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:24, skipping insertion in model container [2020-11-28 03:08:24,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:08:24" (2/3) ... [2020-11-28 03:08:24,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5cc1edeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:08:24, skipping insertion in model container [2020-11-28 03:08:24,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:24" (3/3) ... [2020-11-28 03:08:24,800 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-11-28 03:08:24,811 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:08:24,814 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:08:24,826 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:08:24,862 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:08:24,863 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:08:24,863 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:08:24,863 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:08:24,863 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:08:24,864 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:08:24,864 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:08:24,864 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:08:24,877 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:08:24,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:08:24,882 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:08:24,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:08:24,883 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:08:24,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:08:24,890 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-28 03:08:24,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:08:24,910 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [421348658] [2020-11-28 03:08:24,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/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 03:08:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:08:25,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-28 03:08:25,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:08:25,107 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 03:08:25,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:08:25,138 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 03:08:25,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [421348658] [2020-11-28 03:08:25,140 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:08:25,140 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-28 03:08:25,141 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375501014] [2020-11-28 03:08:25,145 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-28 03:08:25,145 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:08:25,158 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-28 03:08:25,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:25,161 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-11-28 03:08:25,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:08:25,183 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-28 03:08:25,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-28 03:08:25,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-28 03:08:25,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:08:25,192 INFO L225 Difference]: With dead ends: 14 [2020-11-28 03:08:25,192 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:08:25,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-28 03:08:25,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:08:25,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:08:25,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:08:25,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:08:25,220 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 03:08:25,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:08:25,220 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:08:25,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-28 03:08:25,221 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:08:25,221 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:08:25,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:08:25,436 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:08:25,479 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:08:25,479 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:08:25,479 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:08:25,480 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:08:25,480 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:08:25,481 INFO L270 CegarLoopResult]: At program point L13(lines 5 14) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (and (= ULTIMATE.start_main_~d~0 (fp.neg ((_ to_fp 11 53) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0)))) (= ULTIMATE.start_main_~fp~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))))))) [2020-11-28 03:08:25,481 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-28 03:08:25,481 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-28 03:08:25,481 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:08:25,481 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-28 03:08:25,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,488 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,489 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:08:25 BoogieIcfgContainer [2020-11-28 03:08:25,504 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:08:25,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:08:25,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:08:25,508 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:08:25,508 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:08:24" (3/4) ... [2020-11-28 03:08:25,511 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:08:25,523 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-28 03:08:25,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:08:25,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:08:25,524 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:08:25,553 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: d == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) [2020-11-28 03:08:25,560 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_468985d2-0a2f-41a0-9491-7ade88f92f70/bin/uautomizer/witness.graphml [2020-11-28 03:08:25,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:08:25,562 INFO L168 Benchmark]: Toolchain (without parser) took 1609.43 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 39.6 MB in the beginning and 41.3 MB in the end (delta: -1.7 MB). Peak memory consumption was 16.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:25,563 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:25,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.49 ms. Allocated memory is still 58.7 MB. Free memory was 39.4 MB in the beginning and 42.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:25,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.41 ms. Allocated memory is still 58.7 MB. Free memory was 42.3 MB in the beginning and 40.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:25,565 INFO L168 Benchmark]: Boogie Preprocessor took 22.64 ms. Allocated memory is still 58.7 MB. Free memory was 40.8 MB in the beginning and 39.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:08:25,568 INFO L168 Benchmark]: RCFGBuilder took 497.22 ms. Allocated memory is still 58.7 MB. Free memory was 39.6 MB in the beginning and 29.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:25,574 INFO L168 Benchmark]: TraceAbstraction took 712.41 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 29.2 MB in the beginning and 43.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:25,575 INFO L168 Benchmark]: Witness Printer took 53.23 ms. Allocated memory is still 77.6 MB. Free memory was 43.4 MB in the beginning and 41.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:08:25,579 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 58.7 MB. Free memory is still 40.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.49 ms. Allocated memory is still 58.7 MB. Free memory was 39.4 MB in the beginning and 42.3 MB in the end (delta: -2.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 31.41 ms. Allocated memory is still 58.7 MB. Free memory was 42.3 MB in the beginning and 40.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.64 ms. Allocated memory is still 58.7 MB. Free memory was 40.8 MB in the beginning and 39.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 497.22 ms. Allocated memory is still 58.7 MB. Free memory was 39.6 MB in the beginning and 29.6 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 712.41 ms. Allocated memory was 58.7 MB in the beginning and 77.6 MB in the end (delta: 18.9 MB). Free memory was 29.2 MB in the beginning and 43.4 MB in the end (delta: -14.2 MB). Peak memory consumption was 7.1 MB. Max. memory is 16.1 GB. * Witness Printer took 53.23 ms. Allocated memory is still 77.6 MB. Free memory was 43.4 MB in the beginning and 41.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * 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: 5]: Loop Invariant [2020-11-28 03:08:25,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,586 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-28 03:08:25,587 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: d == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 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: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 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, 69 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...