./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/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 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 ..................................................................................................................................................................................................................................... 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_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float13.c -s /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/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 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:04:47,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:04:47,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:04:48,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:04:48,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:04:48,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:04:48,014 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:04:48,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:04:48,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:04:48,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:04:48,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:04:48,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:04:48,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:04:48,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:04:48,028 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:04:48,030 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:04:48,031 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:04:48,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:04:48,036 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:04:48,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:04:48,041 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:04:48,042 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:04:48,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:04:48,045 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:04:48,049 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:04:48,050 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:04:48,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:04:48,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:04:48,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:04:48,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:04:48,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:04:48,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:04:48,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:04:48,058 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:04:48,059 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:04:48,060 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:04:48,061 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:04:48,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:04:48,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:04:48,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:04:48,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:04:48,064 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:04:48,096 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:04:48,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:04:48,110 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:04:48,110 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:04:48,111 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:04:48,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:04:48,111 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:04:48,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:04:48,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:04:48,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:04:48,114 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:04:48,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:04:48,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:04:48,114 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:04:48,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:04:48,115 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:04:48,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:04:48,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:04:48,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:04:48,116 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:04:48,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:04:48,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:04:48,117 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:04:48,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:04:48,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:04:48,118 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:04:48,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:04:48,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:04:48,119 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:04:48,119 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_574ece4a-d500-4d9c-a7be-356c5c709a96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-11-30 00:04:48,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:04:48,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:04:48,447 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:04:48,448 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:04:48,449 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:04:48,451 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-11-30 00:04:48,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/af539b389/384a4561ed8b42a5b3b5428e90f50fe4/FLAG5d19c1b26 [2020-11-30 00:04:49,066 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:04:49,066 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-11-30 00:04:49,073 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/af539b389/384a4561ed8b42a5b3b5428e90f50fe4/FLAG5d19c1b26 [2020-11-30 00:04:49,404 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/af539b389/384a4561ed8b42a5b3b5428e90f50fe4 [2020-11-30 00:04:49,406 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:04:49,408 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:04:49,409 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:04:49,410 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:04:49,413 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:04:49,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2304a3f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49, skipping insertion in model container [2020-11-30 00:04:49,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:04:49,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:04:49,609 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:04:49,619 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:04:49,659 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:04:49,690 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:04:49,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49 WrapperNode [2020-11-30 00:04:49,693 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:04:49,697 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:04:49,697 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:04:49,698 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:04:49,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,752 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:04:49,753 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:04:49,754 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:04:49,754 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:04:49,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,764 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,774 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,774 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... [2020-11-30 00:04:49,790 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:04:49,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:04:49,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:04:49,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:04:49,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:04:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:04:49,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:04:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:04:49,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:04:50,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:04:50,216 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 00:04:50,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:04:50 BoogieIcfgContainer [2020-11-30 00:04:50,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:04:50,232 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:04:50,233 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:04:50,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:04:50,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:04:49" (1/3) ... [2020-11-30 00:04:50,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13366be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:04:50, skipping insertion in model container [2020-11-30 00:04:50,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:49" (2/3) ... [2020-11-30 00:04:50,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13366be9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:04:50, skipping insertion in model container [2020-11-30 00:04:50,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:04:50" (3/3) ... [2020-11-30 00:04:50,250 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-11-30 00:04:50,261 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:04:50,266 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-30 00:04:50,280 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-30 00:04:50,320 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:04:50,320 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:04:50,320 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:04:50,320 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:04:50,321 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:04:50,322 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:04:50,322 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:04:50,322 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:04:50,339 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-30 00:04:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:04:50,344 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:04:50,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:04:50,346 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:04:50,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:04:50,351 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-30 00:04:50,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:04:50,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532484145] [2020-11-30 00:04:50,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:04:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:04:50,479 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:04:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:04:50,506 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:04:50,527 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:04:50,527 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:04:50,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:04:50,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:04:50 BoogieIcfgContainer [2020-11-30 00:04:50,550 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:04:50,551 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:04:50,551 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:04:50,551 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:04:50,552 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:04:50" (3/4) ... [2020-11-30 00:04:50,557 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:04:50,557 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:04:50,560 INFO L168 Benchmark]: Toolchain (without parser) took 1150.28 ms. Allocated memory is still 111.1 MB. Free memory was 83.4 MB in the beginning and 57.5 MB in the end (delta: 25.9 MB). Peak memory consumption was 23.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:50,561 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:04:50,562 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.40 ms. Allocated memory is still 111.1 MB. Free memory was 83.4 MB in the beginning and 87.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:50,563 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.05 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:50,564 INFO L168 Benchmark]: Boogie Preprocessor took 37.28 ms. Allocated memory is still 111.1 MB. Free memory was 86.4 MB in the beginning and 85.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:04:50,565 INFO L168 Benchmark]: RCFGBuilder took 427.10 ms. Allocated memory is still 111.1 MB. Free memory was 85.1 MB in the beginning and 70.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:50,565 INFO L168 Benchmark]: TraceAbstraction took 317.63 ms. Allocated memory is still 111.1 MB. Free memory was 70.3 MB in the beginning and 57.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:50,566 INFO L168 Benchmark]: Witness Printer took 6.24 ms. Allocated memory is still 111.1 MB. Free memory was 57.8 MB in the beginning and 57.5 MB in the end (delta: 299.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:04:50,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 111.1 MB. Free memory is still 68.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 284.40 ms. Allocated memory is still 111.1 MB. Free memory was 83.4 MB in the beginning and 87.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 55.05 ms. Allocated memory is still 111.1 MB. Free memory was 87.6 MB in the beginning and 86.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.28 ms. Allocated memory is still 111.1 MB. Free memory was 86.4 MB in the beginning and 85.1 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 427.10 ms. Allocated memory is still 111.1 MB. Free memory was 85.1 MB in the beginning and 70.8 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 317.63 ms. Allocated memory is still 111.1 MB. Free memory was 70.3 MB in the beginning and 57.8 MB in the end (delta: 12.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.24 ms. Allocated memory is still 111.1 MB. Free memory was 57.8 MB in the beginning and 57.5 MB in the end (delta: 299.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 5. Possible FailurePath: [L5] const float plus_infinity = 1.0f/0.0f; [L6] const float minus_infinity = 0.0f/-0.0f; [L7] const float NaN = 0.0f * (1.0f/0.0f); [L11] _Bool temp; [L14] temp = NaN < plus_infinity [L15] COND TRUE !(!temp) [L3] __assert_fail("0", "float13.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:04:53,242 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:04:53,245 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:04:53,284 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:04:53,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:04:53,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:04:53,289 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:04:53,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:04:53,294 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:04:53,296 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:04:53,297 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:04:53,299 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:04:53,300 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:04:53,301 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:04:53,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:04:53,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:04:53,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:04:53,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:04:53,311 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:04:53,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:04:53,316 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:04:53,318 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:04:53,320 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:04:53,322 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:04:53,326 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:04:53,326 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:04:53,327 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:04:53,328 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:04:53,329 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:04:53,331 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:04:53,331 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:04:53,332 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:04:53,334 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:04:53,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:04:53,337 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:04:53,337 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:04:53,338 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:04:53,339 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:04:53,339 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:04:53,340 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:04:53,341 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:04:53,343 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:04:53,380 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:04:53,381 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:04:53,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:04:53,382 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:04:53,383 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:04:53,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:04:53,383 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:04:53,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:04:53,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:04:53,384 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:04:53,384 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:04:53,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:04:53,385 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:04:53,385 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:04:53,385 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:04:53,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:04:53,386 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:04:53,386 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:04:53,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:04:53,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:04:53,387 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:04:53,387 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:04:53,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:04:53,388 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:04:53,388 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:04:53,388 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:04:53,388 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:04:53,388 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:04:53,389 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:04:53,389 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:04:53,389 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:04:53,389 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_574ece4a-d500-4d9c-a7be-356c5c709a96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 703e967d9c23f7e5c0b77f9cc7b797efc09a7a47 [2020-11-30 00:04:53,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:04:53,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:04:53,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:04:53,847 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:04:53,848 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:04:53,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-11-30 00:04:53,934 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/6cd5be49c/b4571b941bec4854854b1ad7c89c78dd/FLAGf2f663a1d [2020-11-30 00:04:54,605 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:04:54,606 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/sv-benchmarks/c/floats-cbmc-regression/float13.c [2020-11-30 00:04:54,613 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/6cd5be49c/b4571b941bec4854854b1ad7c89c78dd/FLAGf2f663a1d [2020-11-30 00:04:54,632 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/data/6cd5be49c/b4571b941bec4854854b1ad7c89c78dd [2020-11-30 00:04:54,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:04:54,638 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:04:54,641 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:04:54,641 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:04:54,646 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:04:54,647 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:54,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2637c250 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54, skipping insertion in model container [2020-11-30 00:04:54,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:54,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:04:54,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:04:54,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:04:54,855 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:04:54,896 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:04:54,918 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:04:54,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54 WrapperNode [2020-11-30 00:04:54,919 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:04:54,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:04:54,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:04:54,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:04:54,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:54,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,023 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:04:55,025 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:04:55,025 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:04:55,025 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:04:55,035 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... [2020-11-30 00:04:55,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:04:55,090 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:04:55,090 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:04:55,090 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:04:55,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:04:55,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:04:55,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:04:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:04:55,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:04:55,787 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:04:55,787 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-30 00:04:55,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:04:55 BoogieIcfgContainer [2020-11-30 00:04:55,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:04:55,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:04:55,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:04:55,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:04:55,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:04:54" (1/3) ... [2020-11-30 00:04:55,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49828c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:04:55, skipping insertion in model container [2020-11-30 00:04:55,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:04:54" (2/3) ... [2020-11-30 00:04:55,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49828c34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:04:55, skipping insertion in model container [2020-11-30 00:04:55,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:04:55" (3/3) ... [2020-11-30 00:04:55,804 INFO L111 eAbstractionObserver]: Analyzing ICFG float13.c [2020-11-30 00:04:55,816 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:04:55,822 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-30 00:04:55,846 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-30 00:04:55,891 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:04:55,891 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:04:55,892 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:04:55,892 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:04:55,892 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:04:55,892 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:04:55,892 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:04:55,893 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:04:55,916 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-11-30 00:04:55,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 00:04:55,922 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:04:55,923 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 00:04:55,924 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:04:55,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:04:55,932 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2020-11-30 00:04:55,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:04:55,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [84893180] [2020-11-30 00:04:55,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:04:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:04:56,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 28 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-30 00:04:56,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:04:56,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:04:56,164 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:04:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:04:56,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [84893180] [2020-11-30 00:04:56,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:04:56,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-30 00:04:56,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69670856] [2020-11-30 00:04:56,286 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 00:04:56,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:04:56,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 00:04:56,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-30 00:04:56,307 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-11-30 00:04:56,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:04:56,598 INFO L93 Difference]: Finished difference Result 63 states and 76 transitions. [2020-11-30 00:04:56,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:04:56,608 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2020-11-30 00:04:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:04:56,623 INFO L225 Difference]: With dead ends: 63 [2020-11-30 00:04:56,624 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 00:04:56,627 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:04:56,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 00:04:56,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 00:04:56,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 00:04:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 00:04:56,683 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2020-11-30 00:04:56,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:04:56,685 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 00:04:56,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 00:04:56,686 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 00:04:56,686 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 00:04:56,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:04:56,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 00:04:56,940 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,942 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-30 00:04:56,942 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,942 INFO L274 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-11-30 00:04:56,942 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-11-30 00:04:56,942 INFO L274 CegarLoopResult]: For program point L15-2(line 15) no Hoare annotation was computed. [2020-11-30 00:04:56,942 INFO L274 CegarLoopResult]: For program point L36(line 36) no Hoare annotation was computed. [2020-11-30 00:04:56,943 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,943 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,943 INFO L274 CegarLoopResult]: For program point L36-2(line 36) no Hoare annotation was computed. [2020-11-30 00:04:56,943 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,943 INFO L274 CegarLoopResult]: For program point L3-3(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,943 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-30 00:04:56,943 INFO L274 CegarLoopResult]: For program point L3-4(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,944 INFO L274 CegarLoopResult]: For program point L3-5(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,944 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,944 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 00:04:56,944 INFO L274 CegarLoopResult]: For program point L3-6(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,944 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-30 00:04:56,944 INFO L274 CegarLoopResult]: For program point L3-7(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,944 INFO L274 CegarLoopResult]: For program point L3-8(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,945 INFO L274 CegarLoopResult]: For program point L3-9(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,945 INFO L274 CegarLoopResult]: For program point L3-10(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,945 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,945 INFO L274 CegarLoopResult]: For program point L24(line 24) no Hoare annotation was computed. [2020-11-30 00:04:56,945 INFO L274 CegarLoopResult]: For program point L3-11(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,945 INFO L274 CegarLoopResult]: For program point L3-12(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,946 INFO L274 CegarLoopResult]: For program point L24-2(line 24) no Hoare annotation was computed. [2020-11-30 00:04:56,946 INFO L274 CegarLoopResult]: For program point L3-13(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,946 INFO L274 CegarLoopResult]: For program point L3-14(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,946 INFO L274 CegarLoopResult]: For program point L3-15(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,946 INFO L274 CegarLoopResult]: For program point L33(line 33) no Hoare annotation was computed. [2020-11-30 00:04:56,946 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 00:04:56,946 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,947 INFO L274 CegarLoopResult]: For program point L33-2(line 33) no Hoare annotation was computed. [2020-11-30 00:04:56,947 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,947 INFO L274 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-11-30 00:04:56,947 INFO L274 CegarLoopResult]: For program point L21-2(line 21) no Hoare annotation was computed. [2020-11-30 00:04:56,948 INFO L270 CegarLoopResult]: At program point L38(lines 9 39) the Hoare annotation is: (and (= (_ bv0 8) ULTIMATE.start_main_~temp~0) (exists ((currentRoundingMode RoundingMode)) (= ~NaN~0 (fp.mul currentRoundingMode (_ +zero 8 24) (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24)))))) [2020-11-30 00:04:56,948 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,948 INFO L274 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-11-30 00:04:56,948 INFO L274 CegarLoopResult]: For program point L30-2(line 30) no Hoare annotation was computed. [2020-11-30 00:04:56,948 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 00:04:56,948 INFO L274 CegarLoopResult]: For program point L18(line 18) no Hoare annotation was computed. [2020-11-30 00:04:56,949 INFO L274 CegarLoopResult]: For program point L18-2(line 18) no Hoare annotation was computed. [2020-11-30 00:04:56,958 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:56,959 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:56,959 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:56,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:56,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:56,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:56,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:04:56 BoogieIcfgContainer [2020-11-30 00:04:56,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:04:56,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:04:56,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:04:56,972 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:04:56,973 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:04:55" (3/4) ... [2020-11-30 00:04:56,976 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 00:04:56,989 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-30 00:04:56,990 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-11-30 00:04:56,990 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:04:56,990 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 00:04:57,020 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) [2020-11-30 00:04:57,040 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_574ece4a-d500-4d9c-a7be-356c5c709a96/bin/uautomizer/witness.graphml [2020-11-30 00:04:57,040 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:04:57,042 INFO L168 Benchmark]: Toolchain (without parser) took 2403.27 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 47.3 MB in the beginning and 53.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 9.0 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:57,043 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 67.1 MB. Free memory is still 48.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:04:57,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 278.32 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 36.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:57,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 102.93 ms. Allocated memory is still 67.1 MB. Free memory was 36.9 MB in the beginning and 49.6 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:57,045 INFO L168 Benchmark]: Boogie Preprocessor took 62.91 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 48.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:04:57,045 INFO L168 Benchmark]: RCFGBuilder took 702.84 ms. Allocated memory is still 67.1 MB. Free memory was 48.2 MB in the beginning and 33.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:57,046 INFO L168 Benchmark]: TraceAbstraction took 1174.23 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 33.3 MB in the beginning and 56.1 MB in the end (delta: -22.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:04:57,047 INFO L168 Benchmark]: Witness Printer took 68.97 ms. Allocated memory is still 83.9 MB. Free memory was 56.1 MB in the beginning and 53.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:04:57,050 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 67.1 MB. Free memory is still 48.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 278.32 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 36.9 MB in the end (delta: 10.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 102.93 ms. Allocated memory is still 67.1 MB. Free memory was 36.9 MB in the beginning and 49.6 MB in the end (delta: -12.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.91 ms. Allocated memory is still 67.1 MB. Free memory was 49.6 MB in the beginning and 48.2 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 702.84 ms. Allocated memory is still 67.1 MB. Free memory was 48.2 MB in the beginning and 33.7 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1174.23 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 33.3 MB in the beginning and 56.1 MB in the end (delta: -22.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 68.97 ms. Allocated memory is still 83.9 MB. Free memory was 56.1 MB in the beginning and 53.2 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant [2020-11-30 00:04:57,059 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:57,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:57,060 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:57,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:57,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-30 00:04:57,061 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: 0bv8 == temp && (\exists currentRoundingMode : FloatRoundingMode :: NaN == ~fp.mul~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE()))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 4 SDtfs, 23 SDslu, 1 SDs, 0 SdLazy, 16 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 16 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 2 QuantifiedInterpolants, 75 SizeOfPredicates, 4 NumberOfNonLiveVariables, 28 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...