./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float20.i --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_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/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 dcedd10b8fa79fdd7f584d24ebbda0efe903404a ........................................................................................................................................................................................................................................................................... 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_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float20.i -s /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/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 dcedd10b8fa79fdd7f584d24ebbda0efe903404a .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:33:03,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:33:03,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:33:03,950 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:33:03,952 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:33:03,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:33:03,964 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:33:03,975 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:33:03,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:33:03,989 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:33:03,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:33:03,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:33:03,995 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:33:03,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:33:04,001 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:33:04,005 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:33:04,007 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:33:04,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:33:04,017 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:33:04,025 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:33:04,027 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:33:04,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:33:04,032 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:33:04,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:33:04,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:33:04,044 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:33:04,044 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:33:04,046 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:33:04,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:33:04,050 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:33:04,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:33:04,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:33:04,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:33:04,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:33:04,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:33:04,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:33:04,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:33:04,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:33:04,063 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:33:04,064 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:33:04,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:33:04,069 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:33:04,126 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:33:04,127 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:33:04,129 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:33:04,130 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:33:04,130 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:33:04,131 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:33:04,131 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:33:04,131 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:33:04,132 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:33:04,132 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:33:04,134 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:33:04,134 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:33:04,134 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:33:04,135 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:33:04,135 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:33:04,135 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:33:04,136 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:33:04,136 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:33:04,136 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:33:04,137 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:33:04,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:33:04,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:33:04,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:33:04,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:33:04,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:33:04,139 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:33:04,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:33:04,139 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:33:04,140 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:33:04,140 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_ad2a45e7-b536-44d2-bb71-017f443c4b46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcedd10b8fa79fdd7f584d24ebbda0efe903404a [2020-11-29 20:33:04,463 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:33:04,520 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:33:04,530 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:33:04,532 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:33:04,533 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:33:04,535 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-11-29 20:33:04,655 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/b6a8904ce/12468d0758ad4ac7b3ff7b22ad142b57/FLAG000355f46 [2020-11-29 20:33:05,233 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:33:05,234 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-11-29 20:33:05,242 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/b6a8904ce/12468d0758ad4ac7b3ff7b22ad142b57/FLAG000355f46 [2020-11-29 20:33:05,577 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/b6a8904ce/12468d0758ad4ac7b3ff7b22ad142b57 [2020-11-29 20:33:05,580 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:33:05,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:33:05,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:05,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:33:05,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:33:05,597 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:05" (1/1) ... [2020-11-29 20:33:05,600 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b17130c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:05, skipping insertion in model container [2020-11-29 20:33:05,601 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:05" (1/1) ... [2020-11-29 20:33:05,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:33:05,632 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:33:05,952 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:05,966 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:33:05,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:06,011 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:33:06,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06 WrapperNode [2020-11-29 20:33:06,013 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:06,014 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:06,014 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:33:06,015 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:33:06,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,035 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:06,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:33:06,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:33:06,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:33:06,072 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... [2020-11-29 20:33:06,104 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:33:06,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:33:06,106 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:33:06,106 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:33:06,108 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/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 [2020-11-29 20:33:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:33:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:33:06,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:33:06,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:33:06,554 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:33:06,554 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 20:33:06,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:06 BoogieIcfgContainer [2020-11-29 20:33:06,556 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:33:06,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:33:06,580 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:33:06,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:33:06,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:33:05" (1/3) ... [2020-11-29 20:33:06,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3a512d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:33:06, skipping insertion in model container [2020-11-29 20:33:06,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:06" (2/3) ... [2020-11-29 20:33:06,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e3a512d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:33:06, skipping insertion in model container [2020-11-29 20:33:06,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:06" (3/3) ... [2020-11-29 20:33:06,590 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2020-11-29 20:33:06,626 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:33:06,632 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 20:33:06,649 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 20:33:06,686 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:33:06,687 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:33:06,687 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:33:06,687 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:33:06,688 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:33:06,688 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:33:06,688 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:33:06,689 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:33:06,724 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-29 20:33:06,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:33:06,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:33:06,732 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:06,732 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:33:06,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:06,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-29 20:33:06,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:06,754 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994619855] [2020-11-29 20:33:06,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:33:06,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:06,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994619855] [2020-11-29 20:33:06,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:33:06,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:33:06,970 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1949519793] [2020-11-29 20:33:06,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:33:06,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:33:06,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:33:06,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:33:06,999 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-11-29 20:33:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:33:07,023 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2020-11-29 20:33:07,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:33:07,025 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 20:33:07,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:33:07,036 INFO L225 Difference]: With dead ends: 52 [2020-11-29 20:33:07,037 INFO L226 Difference]: Without dead ends: 22 [2020-11-29 20:33:07,041 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:33:07,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-29 20:33:07,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-29 20:33:07,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 20:33:07,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-11-29 20:33:07,086 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2020-11-29 20:33:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:33:07,087 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-11-29 20:33:07,087 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:33:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-11-29 20:33:07,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:33:07,088 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:33:07,089 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:07,089 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:33:07,090 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:33:07,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:07,091 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-29 20:33:07,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:33:07,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084243278] [2020-11-29 20:33:07,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:33:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:07,117 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:07,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:33:07,136 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:33:07,163 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:33:07,163 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:33:07,165 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:33:07,194 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:33:07 BoogieIcfgContainer [2020-11-29 20:33:07,194 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:33:07,196 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:33:07,196 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:33:07,196 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:33:07,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:06" (3/4) ... [2020-11-29 20:33:07,201 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:33:07,202 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:33:07,205 INFO L168 Benchmark]: Toolchain (without parser) took 1619.71 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 59.4 MB in the beginning and 74.9 MB in the end (delta: -15.5 MB). Peak memory consumption was 543.6 kB. Max. memory is 16.1 GB. [2020-11-29 20:33:07,210 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.3 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:33:07,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 423.44 ms. Allocated memory is still 92.3 MB. Free memory was 59.2 MB in the beginning and 65.7 MB in the end (delta: -6.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-29 20:33:07,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 92.3 MB. Free memory was 65.7 MB in the beginning and 64.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:33:07,216 INFO L168 Benchmark]: Boogie Preprocessor took 43.52 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 63.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:33:07,217 INFO L168 Benchmark]: RCFGBuilder took 450.66 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 50.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:33:07,218 INFO L168 Benchmark]: TraceAbstraction took 628.26 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 75.4 MB in the end (delta: -25.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:33:07,219 INFO L168 Benchmark]: Witness Printer took 6.38 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 74.9 MB in the end (delta: 511.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:33:07,225 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 63.3 MB in the end (delta: 27.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 423.44 ms. Allocated memory is still 92.3 MB. Free memory was 59.2 MB in the beginning and 65.7 MB in the end (delta: -6.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.20 ms. Allocated memory is still 92.3 MB. Free memory was 65.7 MB in the beginning and 64.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.52 ms. Allocated memory is still 92.3 MB. Free memory was 64.2 MB in the beginning and 63.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 450.66 ms. Allocated memory is still 92.3 MB. Free memory was 63.0 MB in the beginning and 50.2 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 628.26 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 49.8 MB in the beginning and 75.4 MB in the end (delta: -25.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 6.38 ms. Allocated memory is still 111.1 MB. Free memory was 75.4 MB in the beginning and 74.9 MB in the end (delta: 511.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 21, overapproximation of someBinaryArithmeticFLOAToperation at line 19, overapproximation of someBinaryArithmeticDOUBLEoperation at line 18. Possible FailurePath: [L48] float f=__VERIFIER_nondet_float(); [L17] COND FALSE !(!(min == 0x1.fffffep-105f)) [L18] float modifier = (0x1.0p-23 * (1<<1)); [L19] float ulpdiff = min * modifier; [L21] COND TRUE !(ulpdiff == 0x1p-126f) [L13] COND FALSE !(0) [L13] __assert_fail ("0", "float20.c", 4, __extension__ __PRETTY_FUNCTION__) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 36 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 [2020-11-29 20:33:10,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:33:10,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:33:10,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:33:10,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:33:10,575 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:33:10,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:33:10,584 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:33:10,589 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:33:10,599 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:33:10,601 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:33:10,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:33:10,612 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:33:10,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:33:10,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:33:10,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:33:10,623 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:33:10,630 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:33:10,632 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:33:10,637 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:33:10,645 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:33:10,648 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:33:10,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:33:10,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:33:10,662 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:33:10,669 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:33:10,670 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:33:10,671 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:33:10,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:33:10,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:33:10,676 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:33:10,677 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:33:10,680 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:33:10,681 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:33:10,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:33:10,683 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:33:10,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:33:10,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:33:10,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:33:10,688 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:33:10,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:33:10,690 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 20:33:10,730 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:33:10,731 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:33:10,732 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:33:10,733 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:33:10,733 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:33:10,734 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:33:10,734 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:33:10,734 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:33:10,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:33:10,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:33:10,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:33:10,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:33:10,736 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 20:33:10,736 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 20:33:10,737 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:33:10,737 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:33:10,737 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:33:10,737 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:33:10,738 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:33:10,738 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:33:10,738 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:33:10,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:33:10,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:33:10,739 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:33:10,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:33:10,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:33:10,740 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 20:33:10,741 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 20:33:10,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:33:10,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:33:10,742 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 20:33:10,742 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_ad2a45e7-b536-44d2-bb71-017f443c4b46/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dcedd10b8fa79fdd7f584d24ebbda0efe903404a [2020-11-29 20:33:11,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:33:11,236 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:33:11,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:33:11,241 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:33:11,242 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:33:11,243 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-11-29 20:33:11,324 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/780abbdf3/78a2bca0008b4113ae2fa129b9f84357/FLAG79848aa6f [2020-11-29 20:33:12,012 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:33:12,013 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/sv-benchmarks/c/floats-cbmc-regression/float20.i [2020-11-29 20:33:12,022 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/780abbdf3/78a2bca0008b4113ae2fa129b9f84357/FLAG79848aa6f [2020-11-29 20:33:12,363 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/data/780abbdf3/78a2bca0008b4113ae2fa129b9f84357 [2020-11-29 20:33:12,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:33:12,372 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:33:12,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:12,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:33:12,383 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:33:12,384 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,387 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aa5b14e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12, skipping insertion in model container [2020-11-29 20:33:12,387 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,397 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:33:12,423 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:33:12,645 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:12,664 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:33:12,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:33:12,726 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:33:12,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12 WrapperNode [2020-11-29 20:33:12,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:33:12,733 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:12,734 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:33:12,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:33:12,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,815 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:33:12,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:33:12,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:33:12,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:33:12,829 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,829 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,839 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,839 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,860 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,862 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... [2020-11-29 20:33:12,879 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:33:12,880 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:33:12,880 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:33:12,881 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:33:12,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/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 [2020-11-29 20:33:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 20:33:12,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:33:12,990 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:33:12,990 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:33:15,845 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:33:15,845 INFO L298 CfgBuilder]: Removed 16 assume(true) statements. [2020-11-29 20:33:15,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:15 BoogieIcfgContainer [2020-11-29 20:33:15,848 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:33:15,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:33:15,851 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:33:15,855 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:33:15,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:33:12" (1/3) ... [2020-11-29 20:33:15,856 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d92c3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:33:15, skipping insertion in model container [2020-11-29 20:33:15,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:33:12" (2/3) ... [2020-11-29 20:33:15,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d92c3ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:33:15, skipping insertion in model container [2020-11-29 20:33:15,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:15" (3/3) ... [2020-11-29 20:33:15,860 INFO L111 eAbstractionObserver]: Analyzing ICFG float20.i [2020-11-29 20:33:15,875 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:33:15,881 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-11-29 20:33:15,897 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-11-29 20:33:15,928 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:33:15,929 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:33:15,929 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:33:15,929 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:33:15,930 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:33:15,930 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:33:15,930 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:33:15,931 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:33:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2020-11-29 20:33:15,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:33:15,970 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:33:15,971 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:15,971 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:33:15,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:15,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1804966438, now seen corresponding path program 1 times [2020-11-29 20:33:15,991 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:33:15,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [376167724] [2020-11-29 20:33:15,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/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 [2020-11-29 20:33:16,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:33:16,243 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 20:33:16,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:33:16,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:16,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:33:16,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:16,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [376167724] [2020-11-29 20:33:16,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:33:16,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 20:33:16,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987451499] [2020-11-29 20:33:16,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:33:16,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:33:16,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:33:16,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:33:16,326 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 2 states. [2020-11-29 20:33:16,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:33:16,355 INFO L93 Difference]: Finished difference Result 52 states and 67 transitions. [2020-11-29 20:33:16,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:33:16,357 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 7 [2020-11-29 20:33:16,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:33:16,381 INFO L225 Difference]: With dead ends: 52 [2020-11-29 20:33:16,392 INFO L226 Difference]: Without dead ends: 22 [2020-11-29 20:33:16,396 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:33:16,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-11-29 20:33:16,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-11-29 20:33:16,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-11-29 20:33:16,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 21 transitions. [2020-11-29 20:33:16,447 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 21 transitions. Word has length 7 [2020-11-29 20:33:16,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:33:16,447 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 21 transitions. [2020-11-29 20:33:16,448 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:33:16,448 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-11-29 20:33:16,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-29 20:33:16,450 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:33:16,450 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:16,664 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 20:33:16,665 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:33:16,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:16,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1806813480, now seen corresponding path program 1 times [2020-11-29 20:33:16,669 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:33:16,669 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103237713] [2020-11-29 20:33:16,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 20:33:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:33:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 5 conjunts are in the unsatisfiable core [2020-11-29 20:33:16,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:33:17,296 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-11-29 20:33:17,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:17,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:33:18,657 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-11-29 20:33:18,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:18,663 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103237713] [2020-11-29 20:33:18,664 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:33:18,664 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-29 20:33:18,664 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955586627] [2020-11-29 20:33:18,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:33:18,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:33:18,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:33:18,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:33:18,668 INFO L87 Difference]: Start difference. First operand 22 states and 21 transitions. Second operand 8 states. [2020-11-29 20:33:19,723 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-11-29 20:33:22,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:33:22,774 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-11-29 20:33:22,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:33:22,780 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 7 [2020-11-29 20:33:22,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:33:22,781 INFO L225 Difference]: With dead ends: 22 [2020-11-29 20:33:22,781 INFO L226 Difference]: Without dead ends: 19 [2020-11-29 20:33:22,782 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:33:22,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-11-29 20:33:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-11-29 20:33:22,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-11-29 20:33:22,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-11-29 20:33:22,797 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 7 [2020-11-29 20:33:22,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:33:22,798 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-11-29 20:33:22,798 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:33:22,798 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-11-29 20:33:22,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:33:22,799 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:33:22,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:33:23,012 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 20:33:23,015 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:33:23,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:33:23,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1814045541, now seen corresponding path program 1 times [2020-11-29 20:33:23,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:33:23,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1290991548] [2020-11-29 20:33:23,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 20:33:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:33:23,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 20:33:23,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:33:31,621 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification that was a NOOP. DAG size: 22 [2020-11-29 20:33:32,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:32,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:33:45,093 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification that was a NOOP. DAG size: 15 [2020-11-29 20:33:56,543 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification that was a NOOP. DAG size: 21 [2020-11-29 20:33:56,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:33:56,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1290991548] [2020-11-29 20:33:56,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:33:56,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-29 20:33:56,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488534855] [2020-11-29 20:33:56,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:33:56,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:33:56,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:33:56,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=33, Unknown=3, NotChecked=0, Total=56 [2020-11-29 20:33:56,567 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 8 states. [2020-11-29 20:34:26,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:34:26,279 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-11-29 20:34:26,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:34:26,355 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 20:34:26,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:34:26,356 INFO L225 Difference]: With dead ends: 19 [2020-11-29 20:34:26,356 INFO L226 Difference]: Without dead ends: 16 [2020-11-29 20:34:26,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 32.6s TimeCoverageRelationStatistics Valid=20, Invalid=33, Unknown=3, NotChecked=0, Total=56 [2020-11-29 20:34:26,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-11-29 20:34:26,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-11-29 20:34:26,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-11-29 20:34:26,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-11-29 20:34:26,360 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-11-29 20:34:26,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:34:26,361 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-11-29 20:34:26,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:34:26,361 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-11-29 20:34:26,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-29 20:34:26,361 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:34:26,362 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:34:26,562 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 20:34:26,563 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:34:26,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:34:26,564 INFO L82 PathProgramCache]: Analyzing trace with hash 120341646, now seen corresponding path program 1 times [2020-11-29 20:34:26,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:34:26,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1413142765] [2020-11-29 20:34:26,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 20:34:26,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:34:26,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-29 20:34:26,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:34:27,817 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 20:34:27,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:34:27,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:34:29,562 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-29 20:34:30,719 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2020-11-29 20:34:30,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:34:30,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1413142765] [2020-11-29 20:34:30,741 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:34:30,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2020-11-29 20:34:30,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630136726] [2020-11-29 20:34:30,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:34:30,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:34:30,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:34:30,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:34:30,744 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 8 states. [2020-11-29 20:34:35,094 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2020-11-29 20:34:35,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:34:35,095 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-11-29 20:34:35,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:34:35,095 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-11-29 20:34:35,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:34:35,096 INFO L225 Difference]: With dead ends: 16 [2020-11-29 20:34:35,096 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:34:35,097 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2020-11-29 20:34:35,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:34:35,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:34:35,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:34:35,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:34:35,098 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-11-29 20:34:35,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:34:35,098 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:34:35,098 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:34:35,098 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:34:35,098 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:34:35,299 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 20:34:35,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:34:35,697 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-11-29 20:34:40,229 WARN L193 SmtUtils]: Spent 4.53 s on a formula simplification that was a NOOP. DAG size: 22 [2020-11-29 20:34:40,238 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-29 20:34:40,238 INFO L274 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-11-29 20:34:40,239 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,239 INFO L274 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-11-29 20:34:40,239 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:34:40,239 INFO L270 CegarLoopResult]: At program point L32-2(lines 26 35) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_bugBrokenOut_~min (_ FloatingPoint 8 24))) (and (= ULTIMATE.start_bugBrokenOut_~ulpdiff~1 ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode ULTIMATE.start_bugBrokenOut_~min) ((_ to_fp 11 53) currentRoundingMode ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32)))))))) (fp.eq ULTIMATE.start_bugBrokenOut_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0)))))) [2020-11-29 20:34:40,239 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:34:40,239 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:34:40,239 INFO L277 CegarLoopResult]: At program point L57(lines 47 58) the Hoare annotation is: true [2020-11-29 20:34:40,240 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,240 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:34:40,240 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-29 20:34:40,240 INFO L270 CegarLoopResult]: At program point L21-2(lines 16 24) the Hoare annotation is: (and (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))) (= currentRoundingMode roundNearestTiesToEven) (exists ((ULTIMATE.start_bug_~min (_ FloatingPoint 8 24))) (and (fp.eq ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (/ 16777215.0 340282366920938463463374607431768211456.0))) (= ULTIMATE.start_bug_~ulpdiff~0 (fp.mul currentRoundingMode ULTIMATE.start_bug_~min ((_ to_fp 8 24) currentRoundingMode (fp.mul currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 8388608.0)) ((_ to_fp 11 53) currentRoundingMode (_ bv2 32))))))))) [2020-11-29 20:34:40,240 INFO L274 CegarLoopResult]: For program point L17(line 17) no Hoare annotation was computed. [2020-11-29 20:34:40,240 INFO L274 CegarLoopResult]: For program point L17-2(line 17) no Hoare annotation was computed. [2020-11-29 20:34:40,240 INFO L274 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,240 INFO L274 CegarLoopResult]: For program point L13-2(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L42(line 42) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L13-4(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L277 CegarLoopResult]: At program point L42-2(lines 37 45) the Hoare annotation is: true [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L13-6(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L13-7(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L13-8(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L38-2(line 38) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L13-10(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,241 INFO L274 CegarLoopResult]: For program point L13-11(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,242 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2020-11-29 20:34:40,260 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,262 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,264 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,265 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,268 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,270 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,271 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,272 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,275 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,276 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,276 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,277 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,278 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,279 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,280 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,280 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,280 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,281 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,282 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,283 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:34:40 BoogieIcfgContainer [2020-11-29 20:34:40,286 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:34:40,287 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:34:40,287 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:34:40,287 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:34:40,288 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:33:15" (3/4) ... [2020-11-29 20:34:40,292 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:34:40,306 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-11-29 20:34:40,306 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-11-29 20:34:40,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:34:40,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:34:40,341 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) [2020-11-29 20:34:40,342 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) [2020-11-29 20:34:40,376 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ad2a45e7-b536-44d2-bb71-017f443c4b46/bin/uautomizer/witness.graphml [2020-11-29 20:34:40,377 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:34:40,379 INFO L168 Benchmark]: Toolchain (without parser) took 88006.18 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 43.9 MB in the beginning and 42.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:34:40,380 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:34:40,380 INFO L168 Benchmark]: CACSL2BoogieTranslator took 353.35 ms. Allocated memory is still 58.7 MB. Free memory was 43.6 MB in the beginning and 31.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-29 20:34:40,381 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 30.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:34:40,382 INFO L168 Benchmark]: Boogie Preprocessor took 61.80 ms. Allocated memory is still 58.7 MB. Free memory was 29.9 MB in the beginning and 28.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:34:40,382 INFO L168 Benchmark]: RCFGBuilder took 2968.09 ms. Allocated memory is still 58.7 MB. Free memory was 28.6 MB in the beginning and 30.6 MB in the end (delta: -2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:34:40,383 INFO L168 Benchmark]: TraceAbstraction took 84436.04 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 30.2 MB in the beginning and 45.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:34:40,384 INFO L168 Benchmark]: Witness Printer took 90.13 ms. Allocated memory is still 71.3 MB. Free memory was 45.0 MB in the beginning and 42.0 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:34:40,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 46.1 MB. Free memory was 28.7 MB in the beginning and 28.6 MB in the end (delta: 52.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 353.35 ms. Allocated memory is still 58.7 MB. Free memory was 43.6 MB in the beginning and 31.7 MB in the end (delta: 11.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.88 ms. Allocated memory is still 58.7 MB. Free memory was 31.5 MB in the beginning and 30.1 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.80 ms. Allocated memory is still 58.7 MB. Free memory was 29.9 MB in the beginning and 28.6 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2968.09 ms. Allocated memory is still 58.7 MB. Free memory was 28.6 MB in the beginning and 30.6 MB in the end (delta: -2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 84436.04 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 30.2 MB in the beginning and 45.0 MB in the end (delta: -14.8 MB). Peak memory consumption was 12.0 MB. Max. memory is 16.1 GB. * Witness Printer took 90.13 ms. Allocated memory is still 71.3 MB. Free memory was 45.0 MB in the beginning and 42.0 MB in the end (delta: 3.0 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] * 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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 - 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: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 13]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2020-11-29 20:34:40,406 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,407 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,408 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,409 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,410 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bug_~min,QUANTIFIED] [2020-11-29 20:34:40,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,411 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,412 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.eq~DOUBLE(min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && (\exists ULTIMATE.start_bug_~min : C_FLOAT :: ~fp.eq~DOUBLE(ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456)) && ulpdiff == ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ULTIMATE.start_bug_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32))))) - InvariantResult [Line: 26]: Loop Invariant [2020-11-29 20:34:40,413 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,414 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,415 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,416 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,417 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,417 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:34:40,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_bugBrokenOut_~min,QUANTIFIED] [2020-11-29 20:34:40,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,418 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:34:40,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists ULTIMATE.start_bugBrokenOut_~min : C_FLOAT :: ulpdiff == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ULTIMATE.start_bugBrokenOut_~min), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~fp.mul~FLOAT(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/8388608), ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 2bv32)))))) && ~fp.eq~DOUBLE(ULTIMATE.start_bugBrokenOut_~min, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 16777215/340282366920938463463374607431768211456))) - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 29 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 79.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 38.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 26 SDslu, 29 SDs, 0 SdLazy, 95 SolverSat, 0 SolverUnsat, 7 SolverUnknown, 0 SolverNotchecked, 36.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 38.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 65 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 38.8s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 72 ConstructedInterpolants, 21 QuantifiedInterpolants, 6638 SizeOfPredicates, 15 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...