./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb25cff741a4983d608d95bf512bab62b5988d3b ................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bb25cff741a4983d608d95bf512bab62b5988d3b ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:35:28,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:35:28,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:35:28,932 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:35:28,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:35:28,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:35:28,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:35:28,939 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:35:28,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:35:28,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:35:28,945 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:35:28,946 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:35:28,947 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:35:28,949 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:35:28,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:35:28,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:35:28,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:35:28,954 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:35:28,957 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:35:28,960 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:35:28,962 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:35:28,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:35:28,970 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:35:28,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:35:28,984 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:35:28,985 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:35:28,985 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:35:28,987 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:35:28,987 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:35:28,988 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:35:28,989 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:35:28,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:35:28,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:35:28,992 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:35:28,993 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:35:28,993 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:35:28,994 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:35:28,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:35:28,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:35:28,999 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:35:29,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:35:29,004 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:35:29,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:35:29,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:35:29,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:35:29,053 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:35:29,054 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:35:29,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:35:29,054 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:35:29,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:35:29,054 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:35:29,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:35:29,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:35:29,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:35:29,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:35:29,056 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:35:29,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:35:29,057 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:35:29,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:35:29,057 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:35:29,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:35:29,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:35:29,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:35:29,058 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:35:29,058 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:35:29,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:35:29,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:35:29,059 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:35:29,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:35:29,059 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:35:29,060 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:35:29,060 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_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb25cff741a4983d608d95bf512bab62b5988d3b [2020-11-30 00:35:29,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:35:29,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:35:29,495 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:35:29,497 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:35:29,499 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:35:29,500 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-30 00:35:29,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/51ce2efd3/a441ee5b3a534102865d4dbeba705c6b/FLAG0b8445c34 [2020-11-30 00:35:30,158 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:35:30,159 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-30 00:35:30,170 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/51ce2efd3/a441ee5b3a534102865d4dbeba705c6b/FLAG0b8445c34 [2020-11-30 00:35:30,522 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/51ce2efd3/a441ee5b3a534102865d4dbeba705c6b [2020-11-30 00:35:30,525 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:35:30,527 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:35:30,529 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:30,530 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:35:30,533 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:35:30,534 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,537 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@90118c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30, skipping insertion in model container [2020-11-30 00:35:30,537 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,546 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:35:30,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:35:30,824 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:30,834 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:35:30,856 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:30,870 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:35:30,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30 WrapperNode [2020-11-30 00:35:30,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:30,873 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:30,873 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:35:30,873 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:35:30,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,889 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:30,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:35:30,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:35:30,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:35:30,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,918 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,920 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,924 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,928 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... [2020-11-30 00:35:30,930 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:35:30,931 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:35:30,931 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:35:30,932 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:35:30,933 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/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 00:35:30,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:35:30,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:35:31,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:35:31,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:35:31,307 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:35:31,307 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 00:35:31,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:31 BoogieIcfgContainer [2020-11-30 00:35:31,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:35:31,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:35:31,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:35:31,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:35:31,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:35:30" (1/3) ... [2020-11-30 00:35:31,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39743b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:35:31, skipping insertion in model container [2020-11-30 00:35:31,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:30" (2/3) ... [2020-11-30 00:35:31,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39743b26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:35:31, skipping insertion in model container [2020-11-30 00:35:31,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:31" (3/3) ... [2020-11-30 00:35:31,318 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-11-30 00:35:31,345 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:35:31,348 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:35:31,376 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:35:31,418 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:35:31,418 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:35:31,418 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:35:31,419 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:35:31,419 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:35:31,419 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:35:31,419 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:35:31,419 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:35:31,448 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 00:35:31,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:35:31,453 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:35:31,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:35:31,454 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:35:31,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:31,481 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-30 00:35:31,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:35:31,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183285491] [2020-11-30 00:35:31,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:35:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:31,623 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:31,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:35:31,666 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:35:31,697 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:35:31,698 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:35:31,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:35:31,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:35:31 BoogieIcfgContainer [2020-11-30 00:35:31,725 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:35:31,729 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:35:31,729 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:35:31,729 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:35:31,730 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:31" (3/4) ... [2020-11-30 00:35:31,734 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:35:31,734 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:35:31,739 INFO L168 Benchmark]: Toolchain (without parser) took 1207.85 ms. Allocated memory is still 136.3 MB. Free memory was 100.8 MB in the beginning and 86.3 MB in the end (delta: 14.5 MB). Peak memory consumption was 11.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:31,741 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 136.3 MB. Free memory was 110.8 MB in the beginning and 110.8 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:31,743 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.45 ms. Allocated memory is still 136.3 MB. Free memory was 100.5 MB in the beginning and 111.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:31,746 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.77 ms. Allocated memory is still 136.3 MB. Free memory was 111.5 MB in the beginning and 110.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:31,748 INFO L168 Benchmark]: Boogie Preprocessor took 22.17 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 109.4 MB in the end (delta: 755.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:31,749 INFO L168 Benchmark]: RCFGBuilder took 377.64 ms. Allocated memory is still 136.3 MB. Free memory was 108.8 MB in the beginning and 98.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:31,751 INFO L168 Benchmark]: TraceAbstraction took 415.33 ms. Allocated memory is still 136.3 MB. Free memory was 98.3 MB in the beginning and 87.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:31,753 INFO L168 Benchmark]: Witness Printer took 5.51 ms. Allocated memory is still 136.3 MB. Free memory was 87.1 MB in the beginning and 86.3 MB in the end (delta: 738.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:31,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 136.3 MB. Free memory was 110.8 MB in the beginning and 110.8 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 342.45 ms. Allocated memory is still 136.3 MB. Free memory was 100.5 MB in the beginning and 111.5 MB in the end (delta: -11.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.77 ms. Allocated memory is still 136.3 MB. Free memory was 111.5 MB in the beginning and 110.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 22.17 ms. Allocated memory is still 136.3 MB. Free memory was 110.1 MB in the beginning and 109.4 MB in the end (delta: 755.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 377.64 ms. Allocated memory is still 136.3 MB. Free memory was 108.8 MB in the beginning and 98.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 415.33 ms. Allocated memory is still 136.3 MB. Free memory was 98.3 MB in the beginning and 87.1 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 5.51 ms. Allocated memory is still 136.3 MB. Free memory was 87.1 MB in the beginning and 86.3 MB in the end (delta: 738.6 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 someBinaryDOUBLEComparisonOperation at line 11, overapproximation of someUnaryDOUBLEoperation at line 8, overapproximation of someUnaryFLOAToperation at line 7. Possible FailurePath: [L7] float f = -0x1.0p-127f; [L8] double d = -0x1.0p-127; [L9] double fp = (double)f; [L11] COND TRUE !(d == fp) [L3] __assert_fail("0", "float-to-double2.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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 00:35:34,375 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:35:34,377 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:35:34,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:35:34,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:35:34,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:35:34,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:35:34,415 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:35:34,417 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:35:34,418 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:35:34,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:35:34,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:35:34,421 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:35:34,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:35:34,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:35:34,426 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:35:34,427 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:35:34,430 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:35:34,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:35:34,437 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:35:34,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:35:34,446 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:35:34,448 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:35:34,449 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:35:34,452 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:35:34,453 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:35:34,453 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:35:34,454 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:35:34,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:35:34,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:35:34,476 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:35:34,477 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:35:34,479 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:35:34,480 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:35:34,481 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:35:34,482 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:35:34,482 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:35:34,483 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:35:34,483 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:35:34,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:35:34,487 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:35:34,487 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:35:34,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:35:34,529 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:35:34,532 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:35:34,533 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:35:34,533 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:35:34,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:35:34,533 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:35:34,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:35:34,534 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:35:34,534 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:35:34,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:35:34,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:35:34,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:35:34,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:35:34,536 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:35:34,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:35:34,537 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:35:34,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:35:34,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:35:34,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:35:34,537 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:35:34,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:35:34,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:35:34,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:35:34,538 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:35:34,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:35:34,539 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:35:34,539 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:35:34,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:35:34,539 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:35:34,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:35:34,540 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_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb25cff741a4983d608d95bf512bab62b5988d3b [2020-11-30 00:35:34,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:35:34,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:35:34,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:35:34,948 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:35:34,948 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:35:34,949 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-30 00:35:35,013 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/1b6c55d84/9abcc70406c04644b1ca51b31ab9c1d5/FLAG7cbab4ef2 [2020-11-30 00:35:35,628 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:35:35,629 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/sv-benchmarks/c/floats-cbmc-regression/float-to-double2.c [2020-11-30 00:35:35,635 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/1b6c55d84/9abcc70406c04644b1ca51b31ab9c1d5/FLAG7cbab4ef2 [2020-11-30 00:35:35,656 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/data/1b6c55d84/9abcc70406c04644b1ca51b31ab9c1d5 [2020-11-30 00:35:35,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:35:35,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:35:35,666 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:35,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:35:35,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:35:35,672 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:35" (1/1) ... [2020-11-30 00:35:35,675 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b10ce91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:35, skipping insertion in model container [2020-11-30 00:35:35,675 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:35:35" (1/1) ... [2020-11-30 00:35:35,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:35:35,696 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:35:35,867 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:35,888 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:35:35,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:35:36,014 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:35:36,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36 WrapperNode [2020-11-30 00:35:36,015 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:35:36,022 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:36,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:35:36,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:35:36,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:35:36,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:35:36,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:35:36,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:35:36,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,087 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... [2020-11-30 00:35:36,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:35:36,112 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:35:36,112 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:35:36,112 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:35:36,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/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 00:35:36,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:35:36,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:35:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:35:36,192 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:35:36,650 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:35:36,651 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 00:35:36,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:36 BoogieIcfgContainer [2020-11-30 00:35:36,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:35:36,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:35:36,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:35:36,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:35:36,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:35:35" (1/3) ... [2020-11-30 00:35:36,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31aaed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:35:36, skipping insertion in model container [2020-11-30 00:35:36,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:35:36" (2/3) ... [2020-11-30 00:35:36,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31aaed37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:35:36, skipping insertion in model container [2020-11-30 00:35:36,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:36" (3/3) ... [2020-11-30 00:35:36,666 INFO L111 eAbstractionObserver]: Analyzing ICFG float-to-double2.c [2020-11-30 00:35:36,678 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:35:36,683 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:35:36,696 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:35:36,739 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:35:36,739 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:35:36,739 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:35:36,739 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:35:36,739 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:35:36,740 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:35:36,740 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:35:36,740 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:35:36,755 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-30 00:35:36,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:35:36,761 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:35:36,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:35:36,762 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:35:36,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:35:36,772 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-30 00:35:36,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:35:36,785 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [492748697] [2020-11-30 00:35:36,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/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 00:35:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:35:36,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-30 00:35:36,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:35:37,084 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 00:35:37,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:35:37,130 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 00:35:37,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [492748697] [2020-11-30 00:35:37,132 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:35:37,132 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:35:37,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96092317] [2020-11-30 00:35:37,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 00:35:37,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:35:37,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 00:35:37,158 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:35:37,160 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 4 states. [2020-11-30 00:35:37,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:35:37,199 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2020-11-30 00:35:37,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:35:37,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 00:35:37,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:35:37,210 INFO L225 Difference]: With dead ends: 14 [2020-11-30 00:35:37,210 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:35:37,214 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-30 00:35:37,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:35:37,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:35:37,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:35:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:35:37,241 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-30 00:35:37,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:35:37,242 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:35:37,242 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 00:35:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:35:37,242 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:35:37,463 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:35:37,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:35:37,511 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:35:37,511 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:35:37,512 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:35:37,512 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:35:37,512 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:35:37,513 INFO L270 CegarLoopResult]: At program point L13(lines 5 14) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (and (= ULTIMATE.start_main_~d~0 (fp.neg ((_ to_fp 11 53) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0)))) (= ULTIMATE.start_main_~fp~0 ((_ to_fp 11 53) currentRoundingMode (fp.neg ((_ to_fp 8 24) currentRoundingMode (/ 1.0 170141183460469231731687303715884105728.0))))))) [2020-11-30 00:35:37,513 INFO L274 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-11-30 00:35:37,513 INFO L274 CegarLoopResult]: For program point L11-2(line 11) no Hoare annotation was computed. [2020-11-30 00:35:37,513 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:35:37,513 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 00:35:37,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,522 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:35:37 BoogieIcfgContainer [2020-11-30 00:35:37,532 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:35:37,533 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:35:37,533 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:35:37,534 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:35:37,534 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:35:36" (3/4) ... [2020-11-30 00:35:37,538 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:35:37,549 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 00:35:37,549 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-30 00:35:37,550 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 00:35:37,550 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:35:37,577 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: d == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) [2020-11-30 00:35:37,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8dd0d35a-f746-44c7-b066-ab355a6b4ea3/bin/uautomizer/witness.graphml [2020-11-30 00:35:37,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:35:37,588 INFO L168 Benchmark]: Toolchain (without parser) took 1923.80 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 25.9 MB in the end (delta: 14.1 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:37,588 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 60.8 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:37,589 INFO L168 Benchmark]: CACSL2BoogieTranslator took 349.33 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 44.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:37,590 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 60.8 MB. Free memory was 44.3 MB in the beginning and 42.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:37,590 INFO L168 Benchmark]: Boogie Preprocessor took 42.66 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 41.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:35:37,591 INFO L168 Benchmark]: RCFGBuilder took 544.06 ms. Allocated memory is still 60.8 MB. Free memory was 41.7 MB in the beginning and 31.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:37,592 INFO L168 Benchmark]: TraceAbstraction took 873.87 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 28.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:37,592 INFO L168 Benchmark]: Witness Printer took 52.45 ms. Allocated memory is still 60.8 MB. Free memory was 28.0 MB in the beginning and 25.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:35:37,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 60.8 MB. Free memory is still 42.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 349.33 ms. Allocated memory is still 60.8 MB. Free memory was 39.8 MB in the beginning and 44.3 MB in the end (delta: -4.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 60.8 MB. Free memory was 44.3 MB in the beginning and 42.7 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.66 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 41.7 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 544.06 ms. Allocated memory is still 60.8 MB. Free memory was 41.7 MB in the beginning and 31.3 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 873.87 ms. Allocated memory is still 60.8 MB. Free memory was 31.0 MB in the beginning and 28.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.3 MB. Max. memory is 16.1 GB. * Witness Printer took 52.45 ms. Allocated memory is still 60.8 MB. Free memory was 28.0 MB in the beginning and 25.9 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant [2020-11-30 00:35:37,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,603 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:35:37,604 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: d == ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)) && fp == ~to_fp~LONGDOUBLE(currentRoundingMode, ~fp.neg~DOUBLE(~to_fp~LONGDOUBLE(currentRoundingMode, 1/170141183460469231731687303715884105728)))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 4 SDslu, 2 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 1 QuantifiedInterpolants, 69 SizeOfPredicates, 5 NumberOfNonLiveVariables, 27 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...