./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.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_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/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 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 ..................................................................................................................................................................................................................................... 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_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/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 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 ................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:01:00,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:00,014 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:00,093 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:00,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:00,095 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:00,097 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:00,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:00,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:00,115 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:00,117 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:00,120 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:00,121 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:00,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:00,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:00,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:00,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:00,132 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:00,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:00,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:00,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:00,153 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:00,156 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:00,157 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:00,170 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:00,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:00,171 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:00,173 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:00,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:00,176 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:00,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:00,178 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:00,180 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:00,181 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:00,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:00,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:00,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:00,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:00,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:00,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:00,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:00,190 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-28 03:01:00,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:00,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:00,241 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:00,242 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:00,242 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:00,242 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:00,242 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:00,243 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:01:00,243 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:00,243 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:00,244 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:01:00,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:00,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:01:00,245 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:00,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:00,246 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:00,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:01:00,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:00,247 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:00,247 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:00,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:00,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:00,248 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:00,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:00,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:01:00,248 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:01:00,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:01:00,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:01:00,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:00,249 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_e15032a7-4c26-4928-afc4-45382400bdfa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 [2020-11-28 03:01:00,557 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:00,589 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:00,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:00,594 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:00,595 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:00,596 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-11-28 03:01:00,684 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/9d75cc4cf/2102ef9bbe9d4e5bbeef6c8cf5bfb16e/FLAG9e296f9bc [2020-11-28 03:01:01,302 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:01,302 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-11-28 03:01:01,309 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/9d75cc4cf/2102ef9bbe9d4e5bbeef6c8cf5bfb16e/FLAG9e296f9bc [2020-11-28 03:01:01,673 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/9d75cc4cf/2102ef9bbe9d4e5bbeef6c8cf5bfb16e [2020-11-28 03:01:01,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:01,678 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:01,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:01,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:01,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:01,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:01,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63cf3b2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01, skipping insertion in model container [2020-11-28 03:01:01,691 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:01,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:01,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:01,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:01,943 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:01,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:01,985 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:01,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01 WrapperNode [2020-11-28 03:01:01,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:01,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:01,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:01,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:01,998 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,010 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:02,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:02,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:02,027 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:02,037 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,038 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,039 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,039 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,043 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,046 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... [2020-11-28 03:01:02,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:02,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:02,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:02,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:02,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:02,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:02,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:01:02,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:02,575 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:02,575 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:01:02,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:02 BoogieIcfgContainer [2020-11-28 03:01:02,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:02,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:01:02,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:01:02,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:01:02,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:01" (1/3) ... [2020-11-28 03:01:02,601 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438a31e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:02, skipping insertion in model container [2020-11-28 03:01:02,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:01" (2/3) ... [2020-11-28 03:01:02,602 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@438a31e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:02, skipping insertion in model container [2020-11-28 03:01:02,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:02" (3/3) ... [2020-11-28 03:01:02,604 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2020-11-28 03:01:02,617 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:01:02,629 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:01:02,648 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:01:02,673 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:01:02,673 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:01:02,673 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:01:02,673 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:02,674 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:02,674 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:01:02,674 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:02,674 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:01:02,688 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:01:02,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:01:02,693 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:02,694 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:01:02,694 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:02,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:02,699 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 03:01:02,708 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:01:02,708 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98952516] [2020-11-28 03:01:02,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:01:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:02,802 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:01:02,821 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:01:02,840 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:01:02,841 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:01:02,841 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:01:02,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:01:02 BoogieIcfgContainer [2020-11-28 03:01:02,861 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:01:02,862 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:02,862 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:02,863 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:02,863 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:02" (3/4) ... [2020-11-28 03:01:02,866 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-28 03:01:02,867 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:02,869 INFO L168 Benchmark]: Toolchain (without parser) took 1189.39 ms. Allocated memory is still 98.6 MB. Free memory was 69.7 MB in the beginning and 52.8 MB in the end (delta: 16.9 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:02,870 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:02,871 INFO L168 Benchmark]: CACSL2BoogieTranslator took 302.54 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 77.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:02,872 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.57 ms. Allocated memory is still 98.6 MB. Free memory was 77.3 MB in the beginning and 76.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:02,873 INFO L168 Benchmark]: Boogie Preprocessor took 21.85 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 75.2 MB in the end (delta: 742.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:02,874 INFO L168 Benchmark]: RCFGBuilder took 527.96 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 65.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:02,876 INFO L168 Benchmark]: TraceAbstraction took 282.05 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 53.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:02,876 INFO L168 Benchmark]: Witness Printer took 4.58 ms. Allocated memory is still 98.6 MB. Free memory was 53.2 MB in the beginning and 52.8 MB in the end (delta: 337.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:02,882 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 75.5 MB. Free memory is still 38.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 302.54 ms. Allocated memory is still 98.6 MB. Free memory was 69.5 MB in the beginning and 77.3 MB in the end (delta: -7.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.57 ms. Allocated memory is still 98.6 MB. Free memory was 77.3 MB in the beginning and 76.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.85 ms. Allocated memory is still 98.6 MB. Free memory was 76.0 MB in the beginning and 75.2 MB in the end (delta: 742.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 527.96 ms. Allocated memory is still 98.6 MB. Free memory was 74.9 MB in the beginning and 65.1 MB in the end (delta: 9.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 282.05 ms. Allocated memory is still 98.6 MB. Free memory was 64.7 MB in the beginning and 53.2 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.58 ms. Allocated memory is still 98.6 MB. Free memory was 53.2 MB in the beginning and 52.8 MB in the end (delta: 337.4 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 = 1e8f [L13] y = x + 1.f [L14] z = x - 1.f [L15] r = y - z [L6] COND TRUE !(cond) [L3] __assert_fail("0", "addsub_float_inexact.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-28 03:01:05,387 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:01:05,390 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:01:05,448 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:01:05,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:01:05,455 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:01:05,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:01:05,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:01:05,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:01:05,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:01:05,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:01:05,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:01:05,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:01:05,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:01:05,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:01:05,490 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:01:05,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:01:05,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:01:05,498 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:01:05,506 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:01:05,514 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:01:05,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:01:05,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:01:05,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:01:05,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:01:05,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:01:05,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:01:05,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:01:05,533 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:01:05,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:01:05,535 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:01:05,536 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:01:05,538 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:01:05,539 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:01:05,540 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:01:05,541 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:01:05,541 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:01:05,542 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:01:05,542 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:01:05,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:01:05,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:01:05,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-28 03:01:05,592 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:01:05,592 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:01:05,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:01:05,596 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:01:05,597 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:01:05,597 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:01:05,597 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:01:05,598 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:01:05,598 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:01:05,598 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:01:05,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:01:05,599 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:01:05,600 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-28 03:01:05,600 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-28 03:01:05,600 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:01:05,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:01:05,600 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:01:05,601 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:01:05,601 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:01:05,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:01:05,601 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:01:05,602 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:01:05,602 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:05,602 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:01:05,602 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:01:05,603 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:01:05,603 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-28 03:01:05,603 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-28 03:01:05,603 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:01:05,603 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:01:05,604 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 03:01:05,604 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_e15032a7-4c26-4928-afc4-45382400bdfa/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6904bf6d43d7b400ac9a6f6c8ecd92ebae2bb440 [2020-11-28 03:01:06,026 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:01:06,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:01:06,063 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:01:06,065 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:01:06,066 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:01:06,067 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/../../sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-11-28 03:01:06,162 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/1c0f7f091/6a712f158bf7465a9590e192535a5343/FLAG718359108 [2020-11-28 03:01:06,794 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:01:06,795 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/sv-benchmarks/c/float-benchs/addsub_float_inexact.c [2020-11-28 03:01:06,804 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/1c0f7f091/6a712f158bf7465a9590e192535a5343/FLAG718359108 [2020-11-28 03:01:07,175 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/data/1c0f7f091/6a712f158bf7465a9590e192535a5343 [2020-11-28 03:01:07,178 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:01:07,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:01:07,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:07,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:01:07,195 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:01:07,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119a6caf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07, skipping insertion in model container [2020-11-28 03:01:07,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,206 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:01:07,221 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:01:07,367 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:07,393 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:01:07,419 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:01:07,435 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:01:07,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07 WrapperNode [2020-11-28 03:01:07,436 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:01:07,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:07,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:01:07,438 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:01:07,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,471 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:01:07,472 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:01:07,472 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:01:07,472 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:01:07,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,483 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,484 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,490 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,493 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... [2020-11-28 03:01:07,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:01:07,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:01:07,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:01:07,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:01:07,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:01:07,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:01:07,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:01:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-28 03:01:07,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:01:08,102 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:01:08,103 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-28 03:01:08,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:08 BoogieIcfgContainer [2020-11-28 03:01:08,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:01:08,109 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:01:08,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:01:08,113 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:01:08,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:01:07" (1/3) ... [2020-11-28 03:01:08,114 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c85804e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:08, skipping insertion in model container [2020-11-28 03:01:08,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:01:07" (2/3) ... [2020-11-28 03:01:08,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c85804e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:01:08, skipping insertion in model container [2020-11-28 03:01:08,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:08" (3/3) ... [2020-11-28 03:01:08,117 INFO L111 eAbstractionObserver]: Analyzing ICFG addsub_float_inexact.c [2020-11-28 03:01:08,128 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:01:08,132 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-28 03:01:08,144 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-28 03:01:08,181 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:01:08,181 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:01:08,181 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:01:08,182 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:01:08,182 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:01:08,182 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:01:08,182 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:01:08,182 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:01:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-28 03:01:08,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-28 03:01:08,200 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:01:08,200 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-28 03:01:08,201 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-28 03:01:08,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:01:08,207 INFO L82 PathProgramCache]: Analyzing trace with hash 925605, now seen corresponding path program 1 times [2020-11-28 03:01:08,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-28 03:01:08,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1160189859] [2020-11-28 03:01:08,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-28 03:01:08,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:01:08,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-28 03:01:08,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-28 03:01:08,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:08,532 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-28 03:01:08,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 03:01:08,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1160189859] [2020-11-28 03:01:08,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:01:08,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-28 03:01:08,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914432557] [2020-11-28 03:01:08,876 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:01:08,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-28 03:01:08,890 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:01:08,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:01:08,893 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 6 states. [2020-11-28 03:01:09,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:01:09,220 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-28 03:01:09,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-28 03:01:09,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 4 [2020-11-28 03:01:09,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:01:09,229 INFO L225 Difference]: With dead ends: 14 [2020-11-28 03:01:09,230 INFO L226 Difference]: Without dead ends: 0 [2020-11-28 03:01:09,233 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-28 03:01:09,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-28 03:01:09,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-28 03:01:09,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-28 03:01:09,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-28 03:01:09,261 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-28 03:01:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:01:09,261 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-28 03:01:09,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:01:09,262 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-28 03:01:09,262 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-28 03:01:09,477 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-28 03:01:09,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-28 03:01:09,542 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-28 03:01:09,543 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-28 03:01:09,543 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-28 03:01:09,543 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-28 03:01:09,543 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-28 03:01:09,544 INFO L270 CegarLoopResult]: At program point L17(lines 8 18) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-28 03:01:09,544 INFO L274 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2020-11-28 03:01:09,544 INFO L274 CegarLoopResult]: For program point L6-1(line 6) no Hoare annotation was computed. [2020-11-28 03:01:09,544 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-28 03:01:09,544 INFO L270 CegarLoopResult]: At program point L6-3(line 6) the Hoare annotation is: (and (= (bvadd ULTIMATE.start___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)) (= currentRoundingMode roundNearestTiesToEven)) [2020-11-28 03:01:09,553 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,555 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:01:09,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:01:09,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:01:09,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:01:09,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:01:09 BoogieIcfgContainer [2020-11-28 03:01:09,571 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:01:09,571 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:01:09,572 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:01:09,572 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:01:09,572 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:01:08" (3/4) ... [2020-11-28 03:01:09,577 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-28 03:01:09,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-28 03:01:09,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-28 03:01:09,590 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-28 03:01:09,591 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-28 03:01:09,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e15032a7-4c26-4928-afc4-45382400bdfa/bin/uautomizer/witness.graphml [2020-11-28 03:01:09,645 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:01:09,647 INFO L168 Benchmark]: Toolchain (without parser) took 2457.24 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 38.1 MB in the beginning and 39.4 MB in the end (delta: -1.2 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:09,648 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 58.7 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:09,649 INFO L168 Benchmark]: CACSL2BoogieTranslator took 247.13 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 28.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:09,649 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.08 ms. Allocated memory is still 58.7 MB. Free memory was 28.4 MB in the beginning and 26.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:09,651 INFO L168 Benchmark]: Boogie Preprocessor took 24.30 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 25.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:01:09,652 INFO L168 Benchmark]: RCFGBuilder took 609.71 ms. Allocated memory is still 58.7 MB. Free memory was 25.7 MB in the beginning and 34.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:09,652 INFO L168 Benchmark]: TraceAbstraction took 1462.10 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 41.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:09,653 INFO L168 Benchmark]: Witness Printer took 73.42 ms. Allocated memory is still 75.5 MB. Free memory was 41.5 MB in the beginning and 39.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:01:09,661 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 58.7 MB. Free memory is still 41.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 247.13 ms. Allocated memory is still 58.7 MB. Free memory was 38.0 MB in the beginning and 28.4 MB in the end (delta: 9.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.08 ms. Allocated memory is still 58.7 MB. Free memory was 28.4 MB in the beginning and 26.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.30 ms. Allocated memory is still 58.7 MB. Free memory was 26.9 MB in the beginning and 25.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 609.71 ms. Allocated memory is still 58.7 MB. Free memory was 25.7 MB in the beginning and 34.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1462.10 ms. Allocated memory was 58.7 MB in the beginning and 75.5 MB in the end (delta: 16.8 MB). Free memory was 34.1 MB in the beginning and 41.5 MB in the end (delta: -7.4 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. * Witness Printer took 73.42 ms. Allocated memory is still 75.5 MB. Free memory was 41.5 MB in the beginning and 39.4 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant [2020-11-28 03:01:09,675 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,675 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:01:09,676 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,676 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 6]: Loop Invariant [2020-11-28 03:01:09,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,677 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-28 03:01:09,677 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-28 03:01:09,678 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ~bvadd64(cond, 4294967295bv32) == 0bv32 && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 13 SDslu, 1 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s 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, 0.4s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 102 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...