./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12de589994efba7ef02a09446e6dcc495aa77e08 ..................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_exact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 12de589994efba7ef02a09446e6dcc495aa77e08 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:52:02,039 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:52:02,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:52:02,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:52:02,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:52:02,127 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:52:02,132 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:52:02,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:52:02,142 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:52:02,150 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:52:02,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:52:02,154 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:52:02,155 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:52:02,159 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:52:02,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:52:02,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:52:02,165 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:52:02,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:52:02,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:52:02,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:52:02,187 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:52:02,189 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:52:02,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:52:02,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:52:02,206 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:52:02,206 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:52:02,207 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:52:02,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:52:02,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:52:02,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:52:02,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:52:02,215 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:52:02,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:52:02,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:52:02,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:52:02,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:52:02,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:52:02,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:52:02,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:52:02,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:52:02,225 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:52:02,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:52:02,274 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:52:02,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:52:02,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:52:02,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:52:02,278 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:52:02,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:52:02,279 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:52:02,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:52:02,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:52:02,280 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:52:02,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:52:02,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:52:02,282 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:52:02,282 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:52:02,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:52:02,283 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:52:02,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:52:02,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:52:02,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:52:02,284 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:52:02,284 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:52:02,284 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:52:02,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:52:02,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:52:02,285 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:52:02,286 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:52:02,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:52:02,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:52:02,287 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:52:02,287 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-11-30 00:52:02,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:52:02,730 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:52:02,734 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:52:02,735 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:52:02,741 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:52:02,742 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-30 00:52:02,838 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/4a6baa4de/c4495cc34773413a8193f85c75762cb5/FLAG0455d8f71 [2020-11-30 00:52:03,387 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:52:03,388 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-30 00:52:03,403 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/4a6baa4de/c4495cc34773413a8193f85c75762cb5/FLAG0455d8f71 [2020-11-30 00:52:03,725 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/4a6baa4de/c4495cc34773413a8193f85c75762cb5 [2020-11-30 00:52:03,728 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:52:03,730 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:52:03,733 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:52:03,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:52:03,738 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:52:03,739 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,741 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b277ae9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:03, skipping insertion in model container [2020-11-30 00:52:03,742 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:52:03" (1/1) ... [2020-11-30 00:52:03,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:52:03,765 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:52:04,003 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:52:04,024 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:52:04,045 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:52:04,063 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:52:04,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04 WrapperNode [2020-11-30 00:52:04,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:52:04,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:52:04,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:52:04,067 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:52:04,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,090 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,113 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:52:04,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:52:04,117 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:52:04,117 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:52:04,127 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,127 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,131 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,141 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,148 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... [2020-11-30 00:52:04,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:52:04,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:52:04,152 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:52:04,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:52:04,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:52:04,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:52:04,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:52:04,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:52:04,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:52:04,664 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:52:04,664 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:52:04,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:04 BoogieIcfgContainer [2020-11-30 00:52:04,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:52:04,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:52:04,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:52:04,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:52:04,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:52:03" (1/3) ... [2020-11-30 00:52:04,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfd1fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:52:04, skipping insertion in model container [2020-11-30 00:52:04,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:04" (2/3) ... [2020-11-30 00:52:04,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cfd1fe7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:52:04, skipping insertion in model container [2020-11-30 00:52:04,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:04" (3/3) ... [2020-11-30 00:52:04,677 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-11-30 00:52:04,706 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:52:04,710 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:52:04,741 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:52:04,795 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:52:04,796 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:52:04,796 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:52:04,796 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:52:04,796 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:52:04,797 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:52:04,797 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:52:04,797 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:52:04,821 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 00:52:04,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:52:04,828 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:52:04,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:52:04,830 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:52:04,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:04,837 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-30 00:52:04,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:52:04,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325355441] [2020-11-30 00:52:04,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:52:05,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:05,021 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:52:05,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:52:05,091 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:52:05,092 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:52:05,093 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:52:05,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:52:05 BoogieIcfgContainer [2020-11-30 00:52:05,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:52:05,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:52:05,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:52:05,127 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:52:05,128 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:04" (3/4) ... [2020-11-30 00:52:05,132 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:52:05,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:52:05,136 INFO L168 Benchmark]: Toolchain (without parser) took 1402.98 ms. Allocated memory is still 115.3 MB. Free memory was 81.6 MB in the beginning and 66.6 MB in the end (delta: 14.9 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:05,139 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 115.3 MB. Free memory was 86.5 MB in the beginning and 86.5 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:52:05,141 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.07 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 91.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:05,142 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.82 ms. Allocated memory is still 115.3 MB. Free memory was 91.8 MB in the beginning and 90.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:52:05,144 INFO L168 Benchmark]: Boogie Preprocessor took 34.40 ms. Allocated memory is still 115.3 MB. Free memory was 90.8 MB in the beginning and 89.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:05,146 INFO L168 Benchmark]: RCFGBuilder took 514.72 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 79.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:05,148 INFO L168 Benchmark]: TraceAbstraction took 456.72 ms. Allocated memory is still 115.3 MB. Free memory was 78.7 MB in the beginning and 67.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:05,149 INFO L168 Benchmark]: Witness Printer took 5.76 ms. Allocated memory is still 115.3 MB. Free memory was 67.2 MB in the beginning and 66.6 MB in the end (delta: 536.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:52:05,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 115.3 MB. Free memory was 86.5 MB in the beginning and 86.5 MB in the end (delta: 28.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 332.07 ms. Allocated memory is still 115.3 MB. Free memory was 81.4 MB in the beginning and 91.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.82 ms. Allocated memory is still 115.3 MB. Free memory was 91.8 MB in the beginning and 90.8 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.40 ms. Allocated memory is still 115.3 MB. Free memory was 90.8 MB in the beginning and 89.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 514.72 ms. Allocated memory is still 115.3 MB. Free memory was 89.7 MB in the beginning and 79.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 456.72 ms. Allocated memory is still 115.3 MB. Free memory was 78.7 MB in the beginning and 67.2 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.76 ms. Allocated memory is still 115.3 MB. Free memory was 67.2 MB in the beginning and 66.6 MB in the end (delta: 536.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 16, overapproximation of someBinaryArithmeticFLOAToperation at line 13. Possible FailurePath: [L10] float x, y, z, r; [L12] x = 1e7f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_float_exact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:52:08,041 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:52:08,043 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:52:08,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:52:08,107 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:52:08,114 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:52:08,118 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:52:08,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:52:08,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:52:08,137 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:52:08,139 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:52:08,151 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:52:08,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:52:08,153 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:52:08,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:52:08,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:52:08,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:52:08,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:52:08,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:52:08,173 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:52:08,180 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:52:08,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:52:08,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:52:08,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:52:08,192 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:52:08,196 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:52:08,196 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:52:08,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:52:08,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:52:08,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:52:08,202 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:52:08,203 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:52:08,205 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:52:08,206 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:52:08,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:52:08,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:52:08,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:52:08,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:52:08,210 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:52:08,212 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:52:08,213 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:52:08,214 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:52:08,270 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:52:08,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:52:08,273 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:52:08,273 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:52:08,274 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:52:08,274 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:52:08,274 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:52:08,275 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:52:08,275 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:52:08,275 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:52:08,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:52:08,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:52:08,277 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:52:08,278 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:52:08,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:52:08,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:52:08,278 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:52:08,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:52:08,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:52:08,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:52:08,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:52:08,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:52:08,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:52:08,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:52:08,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:52:08,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:52:08,281 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:52:08,282 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:52:08,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:52:08,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:52:08,282 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:52:08,283 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_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12de589994efba7ef02a09446e6dcc495aa77e08 [2020-11-30 00:52:08,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:52:08,811 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:52:08,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:52:08,817 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:52:08,818 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:52:08,819 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-30 00:52:08,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/70548c60d/c1fb3704ec594f218d8c14a7e9df000c/FLAGab9bcb9de [2020-11-30 00:52:09,578 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:52:09,579 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/sv-benchmarks/c/float-benchs/addsub_float_exact.c [2020-11-30 00:52:09,589 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/70548c60d/c1fb3704ec594f218d8c14a7e9df000c/FLAGab9bcb9de [2020-11-30 00:52:09,961 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/data/70548c60d/c1fb3704ec594f218d8c14a7e9df000c [2020-11-30 00:52:09,969 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:52:09,971 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:52:09,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:52:09,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:52:09,979 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:52:09,980 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:52:09" (1/1) ... [2020-11-30 00:52:09,987 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fc7e868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:09, skipping insertion in model container [2020-11-30 00:52:09,988 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:52:09" (1/1) ... [2020-11-30 00:52:09,997 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:52:10,014 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:52:10,245 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:52:10,267 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:52:10,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:52:10,313 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:52:10,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10 WrapperNode [2020-11-30 00:52:10,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:52:10,317 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:52:10,317 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:52:10,319 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:52:10,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,342 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,376 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:52:10,377 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:52:10,377 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:52:10,377 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:52:10,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,408 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,429 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... [2020-11-30 00:52:10,442 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:52:10,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:52:10,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:52:10,449 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:52:10,450 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:52:10,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:52:10,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:52:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:52:10,537 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:52:11,284 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:52:11,285 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:52:11,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:11 BoogieIcfgContainer [2020-11-30 00:52:11,288 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:52:11,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:52:11,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:52:11,295 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:52:11,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:52:09" (1/3) ... [2020-11-30 00:52:11,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e102ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:52:11, skipping insertion in model container [2020-11-30 00:52:11,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:52:10" (2/3) ... [2020-11-30 00:52:11,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8e102ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:52:11, skipping insertion in model container [2020-11-30 00:52:11,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:11" (3/3) ... [2020-11-30 00:52:11,300 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_exact.c [2020-11-30 00:52:11,313 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:52:11,318 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:52:11,332 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:52:11,374 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:52:11,375 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:52:11,376 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:52:11,376 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:52:11,376 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:52:11,376 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:52:11,377 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:52:11,377 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:52:11,391 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 00:52:11,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:52:11,396 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:52:11,397 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:52:11,397 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:52:11,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:52:11,425 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-30 00:52:11,440 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:52:11,441 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272386991] [2020-11-30 00:52:11,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:52:11,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:52:11,618 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-30 00:52:11,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:52:11,729 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 00:52:11,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:52:11,770 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 00:52:11,771 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272386991] [2020-11-30 00:52:11,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:52:11,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-30 00:52:11,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820906382] [2020-11-30 00:52:11,778 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:52:11,778 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:52:11,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:52:11,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:52:11,797 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2020-11-30 00:52:12,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:52:12,095 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-30 00:52:12,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:52:12,098 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-30 00:52:12,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:52:12,105 INFO L225 Difference]: With dead ends: 14 [2020-11-30 00:52:12,105 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:52:12,110 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:52:12,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:52:12,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:52:12,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:52:12,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:52:12,138 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-30 00:52:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:52:12,139 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:52:12,139 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:52:12,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:52:12,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:52:12,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:52:12,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:52:12,458 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:52:12,458 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:52:12,458 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:52:12,459 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:52:12,459 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:52:12,460 INFO L270 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-30 00:52:12,460 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-30 00:52:12,460 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-30 00:52:12,460 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:52:12,460 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-30 00:52:12,470 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,472 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:52:12,475 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,475 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:52:12,476 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,477 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:52:12,477 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,478 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:52:12,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:52:12 BoogieIcfgContainer [2020-11-30 00:52:12,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:52:12,481 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:52:12,481 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:52:12,481 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:52:12,482 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:52:11" (3/4) ... [2020-11-30 00:52:12,486 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:52:12,497 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-30 00:52:12,497 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:52:12,498 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:52:12,498 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:52:12,539 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8e0a4ee6-958f-4c49-b107-4c1841474fad/bin/uautomizer/witness.graphml [2020-11-30 00:52:12,539 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:52:12,542 INFO L168 Benchmark]: Toolchain (without parser) took 2568.85 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 40.2 MB in the beginning and 38.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 20.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:12,542 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:52:12,543 INFO L168 Benchmark]: CACSL2BoogieTranslator took 340.84 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 30.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:12,544 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.04 ms. Allocated memory is still 58.7 MB. Free memory was 30.3 MB in the beginning and 43.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:12,545 INFO L168 Benchmark]: Boogie Preprocessor took 69.18 ms. Allocated memory is still 58.7 MB. Free memory was 43.4 MB in the beginning and 42.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:12,546 INFO L168 Benchmark]: RCFGBuilder took 840.95 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 31.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:12,547 INFO L168 Benchmark]: TraceAbstraction took 1188.85 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 31.5 MB in the beginning and 41.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:12,548 INFO L168 Benchmark]: Witness Printer took 58.45 ms. Allocated memory is still 79.7 MB. Free memory was 41.4 MB in the beginning and 38.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:52:12,553 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 58.7 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 340.84 ms. Allocated memory is still 58.7 MB. Free memory was 40.0 MB in the beginning and 30.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.04 ms. Allocated memory is still 58.7 MB. Free memory was 30.3 MB in the beginning and 43.4 MB in the end (delta: -13.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.18 ms. Allocated memory is still 58.7 MB. Free memory was 43.4 MB in the beginning and 42.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 840.95 ms. Allocated memory is still 58.7 MB. Free memory was 42.1 MB in the beginning and 31.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1188.85 ms. Allocated memory was 58.7 MB in the beginning and 79.7 MB in the end (delta: 21.0 MB). Free memory was 31.5 MB in the beginning and 41.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. * Witness Printer took 58.45 ms. Allocated memory is still 79.7 MB. Free memory was 41.4 MB in the beginning and 38.9 MB in the end (delta: 2.4 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant [2020-11-30 00:52:12,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,565 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:52:12,566 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2020-11-30 00:52:12,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-30 00:52:12,567 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-30 00:52:12,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 18 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 45 SizeOfPredicates, 7 NumberOfNonLiveVariables, 30 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...