./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.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_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/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 ad220425e59782d2842875bc5488a6e9ea4ef5ae ............................................................................................................................................................................................................................................... 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_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/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 ad220425e59782d2842875bc5488a6e9ea4ef5ae ...................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:27:40,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:27:40,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:27:40,072 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:27:40,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:27:40,074 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:27:40,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:27:40,079 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:27:40,096 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:27:40,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:27:40,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:27:40,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:27:40,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:27:40,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:27:40,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:27:40,115 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:27:40,118 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:27:40,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:27:40,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:27:40,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:27:40,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:27:40,133 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:27:40,135 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:27:40,136 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:27:40,140 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:27:40,141 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:27:40,141 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:27:40,142 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:27:40,143 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:27:40,144 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:27:40,144 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:27:40,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:27:40,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:27:40,147 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:27:40,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:27:40,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:27:40,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:27:40,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:27:40,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:27:40,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:27:40,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:27:40,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 02:27:40,183 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:27:40,184 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:27:40,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:27:40,185 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:27:40,185 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:27:40,185 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:27:40,185 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:27:40,186 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:27:40,186 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:27:40,186 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:27:40,186 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:27:40,187 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:27:40,187 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:27:40,187 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:27:40,187 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:27:40,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:27:40,188 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:27:40,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:27:40,189 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:27:40,189 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:27:40,189 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:27:40,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:27:40,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:27:40,190 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:27:40,190 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:27:40,190 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:27:40,190 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:27:40,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:27:40,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:27:40,191 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:27:40,191 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:27:40,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:27:40,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:27:40,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:27:40,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:27:40,192 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:27:40,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:27:40,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:27:40,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:27:40,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:27:40,193 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_cadbb53b-78a5-433e-abaa-7a247946a244/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-11-30 02:27:40,417 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:27:40,451 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:27:40,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:27:40,457 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:27:40,458 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:27:40,459 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-30 02:27:40,536 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/0c48db653/6f7aeda659cf438cbbfaa5a109aeaded/FLAG62cec2ee2 [2020-11-30 02:27:40,947 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:27:40,948 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-30 02:27:40,958 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/0c48db653/6f7aeda659cf438cbbfaa5a109aeaded/FLAG62cec2ee2 [2020-11-30 02:27:41,341 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/0c48db653/6f7aeda659cf438cbbfaa5a109aeaded [2020-11-30 02:27:41,343 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:27:41,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:27:41,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:41,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:27:41,359 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:27:41,360 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@342150e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41, skipping insertion in model container [2020-11-30 02:27:41,363 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,370 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:27:41,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:27:41,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:41,542 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:27:41,577 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:41,589 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:27:41,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41 WrapperNode [2020-11-30 02:27:41,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:41,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:41,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:27:41,591 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:27:41,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,605 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:41,629 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:27:41,629 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:27:41,629 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:27:41,638 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,638 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,649 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,651 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,653 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... [2020-11-30 02:27:41,661 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:27:41,662 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:27:41,663 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:27:41,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:27:41,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/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 [2020-11-30 02:27:41,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:27:41,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:27:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:27:41,741 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:27:42,045 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:27:42,046 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 02:27:42,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:42 BoogieIcfgContainer [2020-11-30 02:27:42,048 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:27:42,049 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:27:42,049 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:27:42,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:27:42,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:27:41" (1/3) ... [2020-11-30 02:27:42,054 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600a7a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:27:42, skipping insertion in model container [2020-11-30 02:27:42,054 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:41" (2/3) ... [2020-11-30 02:27:42,055 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@600a7a9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:27:42, skipping insertion in model container [2020-11-30 02:27:42,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:42" (3/3) ... [2020-11-30 02:27:42,056 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-11-30 02:27:42,067 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:27:42,071 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:27:42,080 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:27:42,104 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:27:42,104 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:27:42,104 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:27:42,105 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:27:42,105 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:27:42,105 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:27:42,105 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:27:42,105 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:27:42,117 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-11-30 02:27:42,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-30 02:27:42,122 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:27:42,122 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-30 02:27:42,123 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:27:42,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:27:42,129 INFO L82 PathProgramCache]: Analyzing trace with hash 46289, now seen corresponding path program 1 times [2020-11-30 02:27:42,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:27:42,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191061447] [2020-11-30 02:27:42,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:27:42,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:27:42,229 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:27:42,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:27:42,247 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:27:42,267 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:27:42,267 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:27:42,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:27:42,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:27:42 BoogieIcfgContainer [2020-11-30 02:27:42,287 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:27:42,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:27:42,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:27:42,288 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:27:42,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:42" (3/4) ... [2020-11-30 02:27:42,292 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 02:27:42,292 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:27:42,294 INFO L168 Benchmark]: Toolchain (without parser) took 948.20 ms. Allocated memory is still 94.4 MB. Free memory was 64.0 MB in the beginning and 43.7 MB in the end (delta: 20.3 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:42,295 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 71.3 MB. Free memory was 33.5 MB in the beginning and 33.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:42,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.74 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 71.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:42,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.51 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 69.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:42,298 INFO L168 Benchmark]: Boogie Preprocessor took 32.56 ms. Allocated memory is still 94.4 MB. Free memory was 69.8 MB in the beginning and 68.8 MB in the end (delta: 972.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:42,298 INFO L168 Benchmark]: RCFGBuilder took 385.56 ms. Allocated memory is still 94.4 MB. Free memory was 68.8 MB in the beginning and 56.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:42,299 INFO L168 Benchmark]: TraceAbstraction took 237.94 ms. Allocated memory is still 94.4 MB. Free memory was 55.7 MB in the beginning and 44.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:42,300 INFO L168 Benchmark]: Witness Printer took 4.50 ms. Allocated memory is still 94.4 MB. Free memory was 44.2 MB in the beginning and 43.7 MB in the end (delta: 479.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:42,304 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 71.3 MB. Free memory was 33.5 MB in the beginning and 33.4 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 242.74 ms. Allocated memory is still 94.4 MB. Free memory was 63.8 MB in the beginning and 71.0 MB in the end (delta: -7.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.51 ms. Allocated memory is still 94.4 MB. Free memory was 71.0 MB in the beginning and 69.8 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 32.56 ms. Allocated memory is still 94.4 MB. Free memory was 69.8 MB in the beginning and 68.8 MB in the end (delta: 972.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 385.56 ms. Allocated memory is still 94.4 MB. Free memory was 68.8 MB in the beginning and 56.3 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 237.94 ms. Allocated memory is still 94.4 MB. Free memory was 55.7 MB in the beginning and 44.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.50 ms. Allocated memory is still 94.4 MB. Free memory was 44.2 MB in the beginning and 43.7 MB in the end (delta: 479.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryArithmeticFLOAToperation at line 10, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L6] float f = 0x1.9e0c22p-101f; [L7] float g = -0x1.3c9014p-50f; [L8] float target = -0x1p-149f; [L10] float result = f * g; [L12] COND TRUE !(result == target) [L3] __assert_fail("0", "float-no-simp7.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 [2020-11-30 02:27:44,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:27:44,747 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:27:44,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:27:44,779 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:27:44,781 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:27:44,783 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:27:44,785 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:27:44,791 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:27:44,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:27:44,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:27:44,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:27:44,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:27:44,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:27:44,816 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:27:44,820 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:27:44,823 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:27:44,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:27:44,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:27:44,831 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:27:44,837 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:27:44,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:27:44,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:27:44,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:27:44,850 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:27:44,851 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:27:44,851 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:27:44,852 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:27:44,853 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:27:44,854 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:27:44,855 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:27:44,856 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:27:44,857 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:27:44,858 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:27:44,859 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:27:44,859 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:27:44,860 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:27:44,861 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:27:44,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:27:44,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:27:44,863 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:27:44,864 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-11-30 02:27:44,890 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:27:44,891 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:27:44,891 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:27:44,892 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:27:44,892 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:27:44,892 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:27:44,893 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:27:44,893 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:27:44,893 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:27:44,894 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:27:44,894 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:27:44,895 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:27:44,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:27:44,895 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:27:44,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:27:44,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:27:44,896 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 02:27:44,897 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 02:27:44,897 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 02:27:44,897 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:27:44,898 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:27:44,898 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:27:44,898 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:27:44,899 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:27:44,899 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 02:27:44,899 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:27:44,899 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:27:44,900 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:27:44,900 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:27:44,900 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:27:44,901 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:27:44,901 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-11-30 02:27:44,901 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 02:27:44,901 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:27:44,902 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:27:44,902 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:27:44,902 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_cadbb53b-78a5-433e-abaa-7a247946a244/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ad220425e59782d2842875bc5488a6e9ea4ef5ae [2020-11-30 02:27:45,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:27:45,334 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:27:45,339 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:27:45,341 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:27:45,343 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:27:45,345 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-30 02:27:45,424 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/418731d18/06fa797aeb0348de9b16df5211a98c44/FLAG5353557a3 [2020-11-30 02:27:45,938 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:27:45,939 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7.c [2020-11-30 02:27:45,946 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/418731d18/06fa797aeb0348de9b16df5211a98c44/FLAG5353557a3 [2020-11-30 02:27:46,302 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/data/418731d18/06fa797aeb0348de9b16df5211a98c44 [2020-11-30 02:27:46,305 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:27:46,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:27:46,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:46,309 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:27:46,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:27:46,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,322 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c587cf1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46, skipping insertion in model container [2020-11-30 02:27:46,322 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,332 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:27:46,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:27:46,508 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:46,524 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:27:46,547 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:27:46,563 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:27:46,563 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46 WrapperNode [2020-11-30 02:27:46,564 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:27:46,565 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:46,565 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:27:46,565 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:27:46,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,622 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:27:46,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:27:46,653 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:27:46,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:27:46,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,675 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,681 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,682 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,691 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... [2020-11-30 02:27:46,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:27:46,698 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:27:46,698 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:27:46,699 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:27:46,700 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/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 [2020-11-30 02:27:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:27:46,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:27:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 02:27:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:27:47,238 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:27:47,239 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 02:27:47,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:47 BoogieIcfgContainer [2020-11-30 02:27:47,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:27:47,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:27:47,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:27:47,253 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:27:47,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:27:46" (1/3) ... [2020-11-30 02:27:47,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b826683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:27:47, skipping insertion in model container [2020-11-30 02:27:47,254 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:27:46" (2/3) ... [2020-11-30 02:27:47,254 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b826683 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:27:47, skipping insertion in model container [2020-11-30 02:27:47,255 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:47" (3/3) ... [2020-11-30 02:27:47,268 INFO L111 eAbstractionObserver]: Analyzing ICFG float-no-simp7.c [2020-11-30 02:27:47,279 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:27:47,283 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 02:27:47,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 02:27:47,350 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:27:47,350 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:27:47,365 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:27:47,365 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:27:47,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:27:47,365 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:27:47,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:27:47,365 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:27:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 02:27:47,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 02:27:47,386 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:27:47,387 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 02:27:47,387 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 02:27:47,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:27:47,395 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-30 02:27:47,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-11-30 02:27:47,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [975261866] [2020-11-30 02:27:47,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/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 [2020-11-30 02:27:47,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:27:47,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 02:27:47,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 02:27:47,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:27:47,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 02:27:47,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 02:27:47,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [975261866] [2020-11-30 02:27:47,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:27:47,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 02:27:47,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626692007] [2020-11-30 02:27:47,746 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:27:47,746 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-11-30 02:27:47,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:27:47,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:27:47,761 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-11-30 02:27:47,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:27:47,887 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-30 02:27:47,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 02:27:47,889 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-11-30 02:27:47,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:27:47,893 INFO L225 Difference]: With dead ends: 14 [2020-11-30 02:27:47,894 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 02:27:47,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 02:27:47,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 02:27:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 02:27:47,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 02:27:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 02:27:47,920 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-30 02:27:47,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:27:47,920 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 02:27:47,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:27:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 02:27:47,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 02:27:48,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 02:27:48,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 02:27:48,202 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 02:27:48,202 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 02:27:48,202 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 02:27:48,203 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 02:27:48,203 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 02:27:48,203 INFO L270 CegarLoopResult]: At program point L14(lines 5 15) the Hoare annotation is: (and (= (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 13567505.0 21267647932558653966460912964485513216.0)) (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 5186565.0 4722366482869645213696.0)))) ULTIMATE.start_main_~result~0) (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start_main_~target~0 (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 713623846352979940529142984724747568191373312.0))))) [2020-11-30 02:27:48,203 INFO L274 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-11-30 02:27:48,204 INFO L274 CegarLoopResult]: For program point L12-2(line 12) no Hoare annotation was computed. [2020-11-30 02:27:48,204 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 02:27:48,204 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 02:27:48,214 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,215 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,216 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,217 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:27:48,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,220 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,221 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:27:48,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:27:48 BoogieIcfgContainer [2020-11-30 02:27:48,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:27:48,224 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:27:48,225 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:27:48,225 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:27:48,225 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:27:47" (3/4) ... [2020-11-30 02:27:48,228 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 02:27:48,237 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-11-30 02:27:48,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 02:27:48,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 02:27:48,238 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 02:27:48,270 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cadbb53b-78a5-433e-abaa-7a247946a244/bin/utaipan/witness.graphml [2020-11-30 02:27:48,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:27:48,272 INFO L168 Benchmark]: Toolchain (without parser) took 1964.32 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 33.0 MB in the beginning and 44.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 499.1 kB. Max. memory is 16.1 GB. [2020-11-30 02:27:48,273 INFO L168 Benchmark]: CDTParser took 0.65 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:48,273 INFO L168 Benchmark]: CACSL2BoogieTranslator took 255.65 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 22.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:48,274 INFO L168 Benchmark]: Boogie Procedure Inliner took 86.71 ms. Allocated memory is still 54.5 MB. Free memory was 22.4 MB in the beginning and 37.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:48,274 INFO L168 Benchmark]: Boogie Preprocessor took 44.36 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 36.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:27:48,275 INFO L168 Benchmark]: RCFGBuilder took 542.09 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 25.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:48,276 INFO L168 Benchmark]: TraceAbstraction took 981.94 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.1 MB in the beginning and 46.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:48,276 INFO L168 Benchmark]: Witness Printer took 45.54 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 44.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:27:48,280 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.65 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 36.3 MB in the end (delta: 1.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 255.65 ms. Allocated memory is still 54.5 MB. Free memory was 32.8 MB in the beginning and 22.5 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 86.71 ms. Allocated memory is still 54.5 MB. Free memory was 22.4 MB in the beginning and 37.4 MB in the end (delta: -15.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 44.36 ms. Allocated memory is still 54.5 MB. Free memory was 37.4 MB in the beginning and 36.3 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 542.09 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 25.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 981.94 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 25.1 MB in the beginning and 46.6 MB in the end (delta: -21.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Witness Printer took 45.54 ms. Allocated memory is still 67.1 MB. Free memory was 46.6 MB in the beginning and 44.1 MB in the end (delta: 2.5 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 Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * 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 [2020-11-30 02:27:48,287 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,287 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,287 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,288 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,288 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,288 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 02:27:48,289 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,289 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,289 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,289 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,289 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 02:27:48,290 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.mul~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 13567505/21267647932558653966460912964485513216), ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 5186565/4722366482869645213696))) == result && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && target == ~fp.neg~FLOAT(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/713623846352979940529142984724747568191373312)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 21 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, 0 QuantifiedInterpolants, 120 SizeOfPredicates, 5 NumberOfNonLiveVariables, 34 ConjunctsInSsa, 6 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...