./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_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/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 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_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/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 bb25cff741a4983d608d95bf512bab62b5988d3b .............................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:29,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:29,996 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:30,045 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:30,046 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:30,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:30,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:30,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:30,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:30,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:30,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:30,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:30,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:30,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:30,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:30,061 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:30,062 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:30,064 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:30,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:30,068 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:30,070 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:30,080 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:30,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:30,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:30,086 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:30,086 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:30,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:30,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:30,088 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:30,089 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:30,090 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:30,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:30,095 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:30,097 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:30,099 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:30,099 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:30,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:30,100 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:30,100 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:30,102 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:30,102 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:30,105 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-22 13:06:30,153 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:30,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:30,157 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:30,161 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:30,161 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:30,162 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:30,162 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:30,162 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:30,162 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:30,162 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:30,163 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:30,164 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:30,164 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:30,164 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:30,164 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:30,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:30,165 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:30,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:30,166 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:30,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:30,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:30,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:30,167 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:30,167 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:30,167 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:30,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:30,167 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:30,168 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:30,168 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:30,168 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:30,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:30,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:30,169 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:30,169 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:30,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:30,170 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:30,170 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:30,170 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:30,170 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:30,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:30,171 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_a088c719-292b-4116-a254-eeab6d554888/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb25cff741a4983d608d95bf512bab62b5988d3b [2020-11-22 13:06:30,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:30,437 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:30,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:30,443 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:30,444 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:30,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-22 13:06:30,537 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/5c7ebe4ab/489f573fe91a4e429f6b89291d01ec0d/FLAG3a5e9c0c4 [2020-11-22 13:06:30,978 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:30,978 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-22 13:06:30,983 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/5c7ebe4ab/489f573fe91a4e429f6b89291d01ec0d/FLAG3a5e9c0c4 [2020-11-22 13:06:31,349 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/5c7ebe4ab/489f573fe91a4e429f6b89291d01ec0d [2020-11-22 13:06:31,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:31,353 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:31,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:31,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:31,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:31,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,363 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a9d92db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31, skipping insertion in model container [2020-11-22 13:06:31,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,376 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:31,390 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:31,542 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:31,567 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:31,601 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:31,612 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:31,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31 WrapperNode [2020-11-22 13:06:31,613 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:31,614 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:31,614 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:31,614 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:31,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,642 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:31,643 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:31,643 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:31,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:31,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,653 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,656 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,658 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... [2020-11-22 13:06:31,660 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:31,661 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:31,661 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:31,662 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:31,663 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:31,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:31,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:31,724 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:06:31,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:31,913 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:31,913 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-22 13:06:31,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:31 BoogieIcfgContainer [2020-11-22 13:06:31,915 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:31,917 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:31,917 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:31,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:31,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:31" (1/3) ... [2020-11-22 13:06:31,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87ff12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:31, skipping insertion in model container [2020-11-22 13:06:31,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:31" (2/3) ... [2020-11-22 13:06:31,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87ff12a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:31, skipping insertion in model container [2020-11-22 13:06:31,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:31" (3/3) ... [2020-11-22 13:06:31,941 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-11-22 13:06:31,951 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:31,971 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:31,995 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:32,032 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:32,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:32,032 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:32,032 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:32,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:32,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:32,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:32,037 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:32,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-22 13:06:32,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-22 13:06:32,054 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:32,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-22 13:06:32,055 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:32,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:32,061 INFO L82 PathProgramCache]: Analyzing trace with hash 46289, now seen corresponding path program 1 times [2020-11-22 13:06:32,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:32,072 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440418463] [2020-11-22 13:06:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:32,155 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:32,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:06:32,172 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:06:32,193 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:06:32,194 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:06:32,195 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:32,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:32 BoogieIcfgContainer [2020-11-22 13:06:32,220 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:32,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:32,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:32,223 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:32,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:31" (3/4) ... [2020-11-22 13:06:32,227 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-22 13:06:32,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:32,232 INFO L168 Benchmark]: Toolchain (without parser) took 875.07 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 85.1 MB in the beginning and 87.0 MB in the end (delta: -2.0 MB). Peak memory consumption was 25.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:32,234 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 69.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:32,236 INFO L168 Benchmark]: CACSL2BoogieTranslator took 259.03 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 85.1 MB in the beginning and 113.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:32,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.53 ms. Allocated memory is still 136.3 MB. Free memory was 113.5 MB in the beginning and 112.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:32,239 INFO L168 Benchmark]: Boogie Preprocessor took 17.75 ms. Allocated memory is still 136.3 MB. Free memory was 112.2 MB in the beginning and 111.3 MB in the end (delta: 891.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:32,240 INFO L168 Benchmark]: RCFGBuilder took 254.33 ms. Allocated memory is still 136.3 MB. Free memory was 111.3 MB in the beginning and 99.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:32,241 INFO L168 Benchmark]: TraceAbstraction took 302.51 ms. Allocated memory is still 136.3 MB. Free memory was 98.9 MB in the beginning and 87.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:32,244 INFO L168 Benchmark]: Witness Printer took 4.45 ms. Allocated memory is still 136.3 MB. Free memory was 87.6 MB in the beginning and 87.0 MB in the end (delta: 515.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:32,255 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 107.0 MB. Free memory is still 69.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 259.03 ms. Allocated memory was 107.0 MB in the beginning and 136.3 MB in the end (delta: 29.4 MB). Free memory was 85.1 MB in the beginning and 113.5 MB in the end (delta: -28.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 28.53 ms. Allocated memory is still 136.3 MB. Free memory was 113.5 MB in the beginning and 112.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.75 ms. Allocated memory is still 136.3 MB. Free memory was 112.2 MB in the beginning and 111.3 MB in the end (delta: 891.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 254.33 ms. Allocated memory is still 136.3 MB. Free memory was 111.3 MB in the beginning and 99.6 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 302.51 ms. Allocated memory is still 136.3 MB. Free memory was 98.9 MB in the beginning and 87.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.45 ms. Allocated memory is still 136.3 MB. Free memory was 87.6 MB in the beginning and 87.0 MB in the end (delta: 515.3 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 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, 6 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=6occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:34,663 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:34,665 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:34,695 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:34,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:34,697 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:34,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:34,701 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:34,703 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:34,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:34,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:34,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:34,713 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:34,714 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:34,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:34,717 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:34,718 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:34,719 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:34,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:34,723 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:34,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:34,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:34,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:34,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:34,732 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:34,735 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:34,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:34,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:34,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:34,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:34,739 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:34,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:34,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:34,741 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:34,742 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:34,743 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:34,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:34,744 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:34,744 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:34,745 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:34,746 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:34,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-22 13:06:34,799 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:34,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:34,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:34,800 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:34,800 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:34,800 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:34,800 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:34,801 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:34,801 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:34,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:34,802 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-22 13:06:34,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-22 13:06:34,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:34,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:34,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:34,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:34,803 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-22 13:06:34,803 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-22 13:06:34,803 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-22 13:06:34,803 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-22 13:06:34,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:34,804 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:34,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:34,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:34,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-22 13:06:34,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:34,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:34,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:34,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:34,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:34,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:34,806 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-22 13:06:34,806 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-22 13:06:34,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:34,806 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:34,806 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:34,807 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_a088c719-292b-4116-a254-eeab6d554888/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb25cff741a4983d608d95bf512bab62b5988d3b [2020-11-22 13:06:35,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:35,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:35,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:35,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:35,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:35,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-22 13:06:35,284 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/56371d282/532e5a0eeee142f9a8e8db315b3c45b5/FLAGb48a2c8d6 [2020-11-22 13:06:35,820 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:35,821 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-22 13:06:35,827 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/56371d282/532e5a0eeee142f9a8e8db315b3c45b5/FLAGb48a2c8d6 [2020-11-22 13:06:36,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/data/56371d282/532e5a0eeee142f9a8e8db315b3c45b5 [2020-11-22 13:06:36,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:36,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:36,224 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:36,224 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:36,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:36,227 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,229 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a01328c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36, skipping insertion in model container [2020-11-22 13:06:36,229 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,238 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:36,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:36,393 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:36,408 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:36,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:36,443 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:36,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36 WrapperNode [2020-11-22 13:06:36,444 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:36,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:36,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:36,446 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:36,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,459 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,477 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:36,478 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:36,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:36,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:36,486 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,489 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,517 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... [2020-11-22 13:06:36,519 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:36,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:36,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:36,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:36,521 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:36,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:36,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:36,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-22 13:06:36,617 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:37,031 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:37,031 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-22 13:06:37,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:37 BoogieIcfgContainer [2020-11-22 13:06:37,033 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:37,034 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:37,034 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:37,038 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:37,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:36" (1/3) ... [2020-11-22 13:06:37,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f529990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:37, skipping insertion in model container [2020-11-22 13:06:37,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:36" (2/3) ... [2020-11-22 13:06:37,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f529990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:37, skipping insertion in model container [2020-11-22 13:06:37,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:37" (3/3) ... [2020-11-22 13:06:37,041 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-11-22 13:06:37,051 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:37,055 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-22 13:06:37,066 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-22 13:06:37,106 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:37,106 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:37,107 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:37,107 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:37,107 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:37,107 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:37,107 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:37,107 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:37,120 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-22 13:06:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-22 13:06:37,124 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:37,125 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-22 13:06:37,125 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-22 13:06:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:37,132 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-22 13:06:37,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-22 13:06:37,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1074403493] [2020-11-22 13:06:37,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-22 13:06:37,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:37,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-22 13:06:37,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-22 13:06:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-22 13:06:37,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:37,380 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1074403493] [2020-11-22 13:06:37,380 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:37,381 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-22 13:06:37,381 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842564197] [2020-11-22 13:06:37,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-22 13:06:37,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-22 13:06:37,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-22 13:06:37,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-22 13:06:37,403 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-11-22 13:06:37,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:37,440 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-22 13:06:37,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:37,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-22 13:06:37,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:37,450 INFO L225 Difference]: With dead ends: 14 [2020-11-22 13:06:37,451 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:37,453 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 [2020-11-22 13:06:37,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:37,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:37,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:37,475 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-22 13:06:37,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:37,476 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:37,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-22 13:06:37,476 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:37,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:37,694 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-22 13:06:37,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:37,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:37,746 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-22 13:06:37,746 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:37,747 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-22 13:06:37,747 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-22 13:06:37,747 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))))))) [2020-11-22 13:06:37,748 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-22 13:06:37,748 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-22 13:06:37,748 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-22 13:06:37,748 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-22 13:06:37,754 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,755 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,761 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,761 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,762 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:37 BoogieIcfgContainer [2020-11-22 13:06:37,764 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:37,765 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:37,765 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:37,765 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:37,766 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:37" (3/4) ... [2020-11-22 13:06:37,768 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:37,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-22 13:06:37,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-22 13:06:37,777 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:06:37,778 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-22 13:06:37,802 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)))) [2020-11-22 13:06:37,817 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a088c719-292b-4116-a254-eeab6d554888/bin/utaipan/witness.graphml [2020-11-22 13:06:37,817 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:37,820 INFO L168 Benchmark]: Toolchain (without parser) took 1613.26 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 27.5 MB in the beginning and 38.6 MB in the end (delta: -11.1 MB). Peak memory consumption was 489.1 kB. Max. memory is 16.1 GB. [2020-11-22 13:06:37,821 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:37,822 INFO L168 Benchmark]: CACSL2BoogieTranslator took 220.98 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 30.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:37,823 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.10 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 30.9 MB in the beginning and 44.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:37,823 INFO L168 Benchmark]: Boogie Preprocessor took 41.19 ms. Allocated memory is still 60.8 MB. Free memory was 44.7 MB in the beginning and 43.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:37,824 INFO L168 Benchmark]: RCFGBuilder took 512.76 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 33.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:37,825 INFO L168 Benchmark]: TraceAbstraction took 730.30 ms. Allocated memory is still 60.8 MB. Free memory was 33.0 MB in the beginning and 40.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:37,825 INFO L168 Benchmark]: Witness Printer took 52.89 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 38.6 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:37,831 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 50.3 MB. Free memory was 32.5 MB in the beginning and 32.4 MB in the end (delta: 25.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 220.98 ms. Allocated memory is still 50.3 MB. Free memory was 27.3 MB in the beginning and 30.9 MB in the end (delta: -3.6 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.10 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 30.9 MB in the beginning and 44.7 MB in the end (delta: -13.8 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.19 ms. Allocated memory is still 60.8 MB. Free memory was 44.7 MB in the beginning and 43.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 512.76 ms. Allocated memory is still 60.8 MB. Free memory was 43.5 MB in the beginning and 33.5 MB in the end (delta: 10.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 730.30 ms. Allocated memory is still 60.8 MB. Free memory was 33.0 MB in the beginning and 40.8 MB in the end (delta: -7.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 16.1 GB. * Witness Printer took 52.89 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 38.6 MB in the end (delta: 2.2 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 [2020-11-22 13:06:37,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,848 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,849 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,849 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-22 13:06:37,850 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...