./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5b13cd337396811bf9b23b015fd97985af6ec65a ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 5b13cd337396811bf9b23b015fd97985af6ec65a ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-10-24 23:19:19,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:19:19,978 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:19:20,042 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:19:20,042 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:19:20,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:19:20,051 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:19:20,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:19:20,063 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:19:20,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:19:20,072 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:19:20,077 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:19:20,078 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:19:20,082 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:19:20,084 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:19:20,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:19:20,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:19:20,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:19:20,095 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:19:20,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:19:20,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:19:20,109 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:19:20,112 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:19:20,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:19:20,123 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:19:20,124 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:19:20,124 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:19:20,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:19:20,127 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:19:20,128 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:19:20,129 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:19:20,130 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:19:20,136 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:19:20,137 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:19:20,138 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:19:20,139 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:19:20,140 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:19:20,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:19:20,141 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:19:20,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:19:20,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:19:20,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-24 23:19:20,203 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:19:20,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:19:20,207 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:19:20,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:19:20,208 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:19:20,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:19:20,208 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:19:20,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 23:19:20,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:19:20,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:19:20,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:19:20,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:19:20,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:19:20,211 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:19:20,212 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:19:20,212 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:19:20,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:19:20,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:19:20,213 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:19:20,213 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:19:20,213 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:19:20,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:19:20,214 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:19:20,214 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:19:20,215 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:19:20,215 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-24 23:19:20,215 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-24 23:19:20,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:19:20,216 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:19:20,216 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b13cd337396811bf9b23b015fd97985af6ec65a [2020-10-24 23:19:20,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:19:20,687 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:19:20,690 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:19:20,692 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:19:20,693 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:19:20,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2020-10-24 23:19:20,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae3a51eb/7ff4c61667c84716b78c4ccc6933a337/FLAG7e942b3f6 [2020-10-24 23:19:21,377 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:19:21,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2020-10-24 23:19:21,398 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae3a51eb/7ff4c61667c84716b78c4ccc6933a337/FLAG7e942b3f6 [2020-10-24 23:19:21,739 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ae3a51eb/7ff4c61667c84716b78c4ccc6933a337 [2020-10-24 23:19:21,743 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:19:21,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:19:21,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:21,753 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:19:21,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:19:21,774 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:21" (1/1) ... [2020-10-24 23:19:21,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6f3554 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:21, skipping insertion in model container [2020-10-24 23:19:21,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:21" (1/1) ... [2020-10-24 23:19:21,802 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:19:21,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:19:22,062 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:22,086 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:19:22,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:22,218 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:19:22,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22 WrapperNode [2020-10-24 23:19:22,219 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:22,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:22,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:19:22,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:19:22,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,242 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,286 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:22,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:19:22,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:19:22,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:19:22,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... [2020-10-24 23:19:22,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:19:22,341 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:19:22,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:19:22,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:19:22,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:19:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 23:19:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:19:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-24 23:19:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 23:19:22,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-24 23:19:22,428 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:19:22,429 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:19:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 23:19:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-10-24 23:19:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:19:22,981 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:19:22,981 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 23:19:22,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:22 BoogieIcfgContainer [2020-10-24 23:19:22,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:19:22,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:19:22,986 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:19:22,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:19:22,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:19:21" (1/3) ... [2020-10-24 23:19:22,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a1c078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:22, skipping insertion in model container [2020-10-24 23:19:22,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:22" (2/3) ... [2020-10-24 23:19:22,991 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34a1c078 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:22, skipping insertion in model container [2020-10-24 23:19:22,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:22" (3/3) ... [2020-10-24 23:19:22,993 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2020-10-24 23:19:23,005 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:19:23,010 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:19:23,022 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:19:23,052 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:19:23,052 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:19:23,052 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:19:23,052 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:19:23,052 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:19:23,053 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:19:23,053 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:19:23,053 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:19:23,069 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-24 23:19:23,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:19:23,076 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:23,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:23,077 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:23,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:23,084 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-10-24 23:19:23,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:19:23,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049002878] [2020-10-24 23:19:23,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:19:23,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:23,290 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:23,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049002878] [2020-10-24 23:19:23,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:23,292 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-24 23:19:23,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371972576] [2020-10-24 23:19:23,299 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:19:23,299 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-24 23:19:23,323 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:19:23,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:19:23,328 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-24 23:19:23,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:23,363 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-10-24 23:19:23,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:19:23,366 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:19:23,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:23,400 INFO L225 Difference]: With dead ends: 73 [2020-10-24 23:19:23,401 INFO L226 Difference]: Without dead ends: 34 [2020-10-24 23:19:23,408 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 [2020-10-24 23:19:23,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-24 23:19:23,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-24 23:19:23,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-24 23:19:23,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-10-24 23:19:23,466 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-10-24 23:19:23,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:23,466 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-10-24 23:19:23,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:19:23,467 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-10-24 23:19:23,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:19:23,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:23,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:23,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 23:19:23,469 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:23,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:23,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-10-24 23:19:23,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-24 23:19:23,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536958961] [2020-10-24 23:19:23,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 23:19:23,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:19:23,593 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:19:23,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-24 23:19:23,706 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-24 23:19:23,763 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-24 23:19:23,763 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-24 23:19:23,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 23:19:23,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:19:23 BoogieIcfgContainer [2020-10-24 23:19:23,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:19:23,853 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:19:23,853 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:19:23,854 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:19:23,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:22" (3/4) ... [2020-10-24 23:19:23,859 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-24 23:19:23,859 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:19:23,865 INFO L168 Benchmark]: Toolchain (without parser) took 2116.30 ms. Allocated memory was 41.9 MB in the beginning and 67.1 MB in the end (delta: 25.2 MB). Free memory was 18.6 MB in the beginning and 41.6 MB in the end (delta: -23.0 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:23,866 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 41.9 MB. Free memory was 21.5 MB in the beginning and 21.5 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:19:23,868 INFO L168 Benchmark]: CACSL2BoogieTranslator took 467.41 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 18.0 MB in the beginning and 27.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:23,869 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.80 ms. Allocated memory is still 54.5 MB. Free memory was 27.7 MB in the beginning and 25.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:23,870 INFO L168 Benchmark]: Boogie Preprocessor took 50.90 ms. Allocated memory is still 54.5 MB. Free memory was 25.3 MB in the beginning and 36.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:23,872 INFO L168 Benchmark]: RCFGBuilder took 642.36 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 28.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:23,874 INFO L168 Benchmark]: TraceAbstraction took 866.47 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.2 MB in the beginning and 42.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:23,877 INFO L168 Benchmark]: Witness Printer took 6.69 ms. Allocated memory is still 67.1 MB. Free memory was 42.2 MB in the beginning and 41.6 MB in the end (delta: 545.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:23,894 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 41.9 MB. Free memory was 21.5 MB in the beginning and 21.5 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 467.41 ms. Allocated memory was 41.9 MB in the beginning and 54.5 MB in the end (delta: 12.6 MB). Free memory was 18.0 MB in the beginning and 27.7 MB in the end (delta: -9.7 MB). Peak memory consumption was 3.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.80 ms. Allocated memory is still 54.5 MB. Free memory was 27.7 MB in the beginning and 25.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 50.90 ms. Allocated memory is still 54.5 MB. Free memory was 25.3 MB in the beginning and 36.7 MB in the end (delta: -11.4 MB). Peak memory consumption was 5.5 MB. Max. memory is 16.1 GB. * RCFGBuilder took 642.36 ms. Allocated memory is still 54.5 MB. Free memory was 36.7 MB in the beginning and 28.6 MB in the end (delta: 8.1 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 866.47 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 28.2 MB in the beginning and 42.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 16.1 GB. * Witness Printer took 6.69 ms. Allocated memory is still 67.1 MB. Free memory was 42.2 MB in the beginning and 41.6 MB in the end (delta: 545.0 kB). Peak memory consumption was 2.1 MB. 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 143, overapproximation of someUnaryDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 64, overapproximation of someBinaryArithmeticFLOAToperation at line 67. Possible FailurePath: [L14] static const float huge_floor = 1.0e30; [L31-L36] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L38-L43] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L45-L49] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L51-L53] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L139] float x = 0.0f; [L56] float w, s1, s2, z; [L57] __int32_t ix, hx, id; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L60] ieee_float_shape_type gf_u; [L61] gf_u.value = (x) [L62] EXPR gf_u.word [L62] (hx) = gf_u.word [L64] ix = hx & 0x7fffffff VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L65] COND TRUE ix >= 0x50800000 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L66] COND TRUE ((ix) > 0x7f800000L) [L67] return x + x; VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L140] float res = atan_float(x); [L143] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L143] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0620a.c", 3, "reach_error") VAL [aT_atan={7:0}, atanhi_atan={11:0}, atanlo_atan={10:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 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=38occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 [2020-10-24 23:19:26,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 23:19:26,669 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 23:19:26,725 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 23:19:26,725 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 23:19:26,732 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 23:19:26,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 23:19:26,742 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 23:19:26,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 23:19:26,749 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 23:19:26,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 23:19:26,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 23:19:26,758 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 23:19:26,760 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 23:19:26,766 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 23:19:26,768 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 23:19:26,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 23:19:26,772 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 23:19:26,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 23:19:26,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 23:19:26,788 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 23:19:26,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 23:19:26,794 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 23:19:26,796 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 23:19:26,800 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 23:19:26,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 23:19:26,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 23:19:26,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 23:19:26,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 23:19:26,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 23:19:26,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 23:19:26,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 23:19:26,813 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 23:19:26,815 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 23:19:26,816 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 23:19:26,817 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 23:19:26,818 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 23:19:26,818 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 23:19:26,818 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 23:19:26,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 23:19:26,822 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 23:19:26,823 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-24 23:19:26,884 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 23:19:26,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 23:19:26,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-24 23:19:26,889 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-24 23:19:26,890 INFO L138 SettingsManager]: * Use SBE=true [2020-10-24 23:19:26,890 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 23:19:26,891 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 23:19:26,891 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 23:19:26,891 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 23:19:26,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 23:19:26,893 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 23:19:26,893 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 23:19:26,893 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-24 23:19:26,894 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-24 23:19:26,894 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 23:19:26,894 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 23:19:26,894 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 23:19:26,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 23:19:26,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 23:19:26,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-24 23:19:26,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 23:19:26,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 23:19:26,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 23:19:26,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 23:19:26,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-24 23:19:26,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-24 23:19:26,897 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-24 23:19:26,898 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-24 23:19:26,898 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 23:19:26,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-24 23:19:26,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-24 23:19:26,898 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:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b13cd337396811bf9b23b015fd97985af6ec65a [2020-10-24 23:19:27,291 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 23:19:27,324 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 23:19:27,327 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 23:19:27,329 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 23:19:27,334 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 23:19:27,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2020-10-24 23:19:27,428 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f5e3d2c/de7becf148434a8788bdf6c177bcb4fa/FLAG48e3297c2 [2020-10-24 23:19:28,082 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 23:19:28,084 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0620a.c [2020-10-24 23:19:28,096 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f5e3d2c/de7becf148434a8788bdf6c177bcb4fa/FLAG48e3297c2 [2020-10-24 23:19:28,403 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2f5e3d2c/de7becf148434a8788bdf6c177bcb4fa [2020-10-24 23:19:28,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 23:19:28,421 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-24 23:19:28,423 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:28,423 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 23:19:28,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 23:19:28,451 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,460 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3798cad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28, skipping insertion in model container [2020-10-24 23:19:28,461 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,490 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 23:19:28,518 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 23:19:28,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:28,751 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 23:19:28,813 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 23:19:28,854 INFO L208 MainTranslator]: Completed translation [2020-10-24 23:19:28,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28 WrapperNode [2020-10-24 23:19:28,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 23:19:28,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:28,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-24 23:19:28,857 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-24 23:19:28,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-24 23:19:28,928 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 23:19:28,928 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 23:19:28,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 23:19:28,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,948 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,948 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... [2020-10-24 23:19:28,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 23:19:28,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 23:19:28,984 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 23:19:28,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 23:19:28,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:19:29,071 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-10-24 23:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-24 23:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 23:19:29,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-24 23:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-24 23:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 23:19:29,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 23:19:29,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-24 23:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-24 23:19:29,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 23:19:38,655 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 23:19:38,656 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-24 23:19:38,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:38 BoogieIcfgContainer [2020-10-24 23:19:38,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 23:19:38,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 23:19:38,664 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 23:19:38,668 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 23:19:38,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:19:28" (1/3) ... [2020-10-24 23:19:38,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4193758d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:38, skipping insertion in model container [2020-10-24 23:19:38,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:19:28" (2/3) ... [2020-10-24 23:19:38,670 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4193758d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:19:38, skipping insertion in model container [2020-10-24 23:19:38,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:38" (3/3) ... [2020-10-24 23:19:38,672 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a.c [2020-10-24 23:19:38,685 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-24 23:19:38,690 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 23:19:38,705 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 23:19:38,733 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 23:19:38,733 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 23:19:38,734 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-24 23:19:38,734 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 23:19:38,734 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 23:19:38,734 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 23:19:38,735 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 23:19:38,735 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 23:19:38,750 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-10-24 23:19:38,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-24 23:19:38,757 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:38,758 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:38,758 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:38,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:38,765 INFO L82 PathProgramCache]: Analyzing trace with hash 1030429181, now seen corresponding path program 1 times [2020-10-24 23:19:38,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:38,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [596990370] [2020-10-24 23:19:38,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:19:39,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:39,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-24 23:19:39,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:39,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:39,718 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:19:39,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:39,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [596990370] [2020-10-24 23:19:39,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:39,724 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-24 23:19:39,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460261635] [2020-10-24 23:19:39,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-24 23:19:39,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:19:39,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-24 23:19:39,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:19:39,748 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-10-24 23:19:39,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:39,780 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-10-24 23:19:39,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-24 23:19:39,781 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-10-24 23:19:39,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:39,792 INFO L225 Difference]: With dead ends: 73 [2020-10-24 23:19:39,793 INFO L226 Difference]: Without dead ends: 34 [2020-10-24 23:19:39,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-24 23:19:39,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-10-24 23:19:39,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-10-24 23:19:39,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-10-24 23:19:39,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-10-24 23:19:39,839 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 10 [2020-10-24 23:19:39,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:39,840 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-10-24 23:19:39,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-24 23:19:39,840 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-10-24 23:19:39,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-24 23:19:39,841 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:39,842 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:40,056 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-24 23:19:40,057 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:40,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:40,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1304878016, now seen corresponding path program 1 times [2020-10-24 23:19:40,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:40,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48435802] [2020-10-24 23:19:40,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:19:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:40,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-24 23:19:40,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:41,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:41,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:19:41,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:41,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48435802] [2020-10-24 23:19:41,135 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:41,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-24 23:19:41,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351809319] [2020-10-24 23:19:41,137 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 23:19:41,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:19:41,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 23:19:41,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-24 23:19:41,140 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-10-24 23:19:45,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:45,916 INFO L93 Difference]: Finished difference Result 57 states and 70 transitions. [2020-10-24 23:19:45,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 23:19:45,917 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-10-24 23:19:45,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:45,918 INFO L225 Difference]: With dead ends: 57 [2020-10-24 23:19:45,918 INFO L226 Difference]: Without dead ends: 32 [2020-10-24 23:19:45,919 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-24 23:19:45,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-24 23:19:45,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2020-10-24 23:19:45,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-24 23:19:45,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2020-10-24 23:19:45,925 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 11 [2020-10-24 23:19:45,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:45,925 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2020-10-24 23:19:45,925 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 23:19:45,925 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2020-10-24 23:19:45,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-24 23:19:45,926 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:45,926 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:46,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-24 23:19:46,140 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:46,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:46,142 INFO L82 PathProgramCache]: Analyzing trace with hash -413875709, now seen corresponding path program 1 times [2020-10-24 23:19:46,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:46,143 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1146246780] [2020-10-24 23:19:46,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:19:47,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:47,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:19:47,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:47,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:47,137 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:19:47,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:47,168 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1146246780] [2020-10-24 23:19:47,168 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:47,168 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-24 23:19:47,169 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510681513] [2020-10-24 23:19:47,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 23:19:47,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:19:47,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 23:19:47,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-24 23:19:47,171 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand 7 states. [2020-10-24 23:19:53,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:53,216 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2020-10-24 23:19:53,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 23:19:53,219 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-24 23:19:53,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:53,220 INFO L225 Difference]: With dead ends: 35 [2020-10-24 23:19:53,220 INFO L226 Difference]: Without dead ends: 32 [2020-10-24 23:19:53,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-24 23:19:53,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-10-24 23:19:53,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2020-10-24 23:19:53,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2020-10-24 23:19:53,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2020-10-24 23:19:53,227 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 13 [2020-10-24 23:19:53,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:53,227 INFO L481 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2020-10-24 23:19:53,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 23:19:53,228 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2020-10-24 23:19:53,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-24 23:19:53,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:53,229 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:53,436 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-24 23:19:53,440 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:53,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:53,441 INFO L82 PathProgramCache]: Analyzing trace with hash 1848532469, now seen corresponding path program 1 times [2020-10-24 23:19:53,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:53,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [762032086] [2020-10-24 23:19:53,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-10-24 23:19:55,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:55,331 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-24 23:19:55,338 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:55,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:55,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:19:55,792 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-24 23:19:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:55,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [762032086] [2020-10-24 23:19:55,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:55,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-24 23:19:55,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189232558] [2020-10-24 23:19:55,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 23:19:55,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:19:55,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 23:19:55,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:19:55,924 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand 6 states. [2020-10-24 23:19:56,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:56,053 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2020-10-24 23:19:56,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-24 23:19:56,059 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-10-24 23:19:56,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:56,059 INFO L225 Difference]: With dead ends: 32 [2020-10-24 23:19:56,059 INFO L226 Difference]: Without dead ends: 18 [2020-10-24 23:19:56,060 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-24 23:19:56,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-10-24 23:19:56,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-10-24 23:19:56,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-10-24 23:19:56,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2020-10-24 23:19:56,064 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2020-10-24 23:19:56,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:56,065 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2020-10-24 23:19:56,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 23:19:56,065 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2020-10-24 23:19:56,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-24 23:19:56,066 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 23:19:56,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 23:19:56,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-24 23:19:56,275 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 23:19:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 23:19:56,276 INFO L82 PathProgramCache]: Analyzing trace with hash 712330328, now seen corresponding path program 1 times [2020-10-24 23:19:56,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-24 23:19:56,278 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1260218779] [2020-10-24 23:19:56,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-24 23:19:57,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 23:19:57,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-24 23:19:57,170 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-24 23:19:57,236 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-24 23:19:57,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:57,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-24 23:19:57,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 23:19:57,502 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1260218779] [2020-10-24 23:19:57,502 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-24 23:19:57,503 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-10-24 23:19:57,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004744003] [2020-10-24 23:19:57,503 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-24 23:19:57,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-24 23:19:57,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-24 23:19:57,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-24 23:19:57,505 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 14 states. [2020-10-24 23:19:57,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 23:19:57,832 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2020-10-24 23:19:57,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-24 23:19:57,833 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2020-10-24 23:19:57,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 23:19:57,833 INFO L225 Difference]: With dead ends: 18 [2020-10-24 23:19:57,833 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 23:19:57,834 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-10-24 23:19:57,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 23:19:57,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 23:19:57,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 23:19:57,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 23:19:57,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-10-24 23:19:57,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 23:19:57,836 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 23:19:57,836 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-24 23:19:57,836 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 23:19:57,836 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 23:19:58,042 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-24 23:19:58,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 23:19:58,281 INFO L274 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-10-24 23:19:58,281 INFO L274 CegarLoopResult]: For program point L143-2(lines 143 146) no Hoare annotation was computed. [2020-10-24 23:19:58,281 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-24 23:19:58,281 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-24 23:19:58,281 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-24 23:19:58,282 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-24 23:19:58,282 INFO L270 CegarLoopResult]: At program point L28(lines 16 29) the Hoare annotation is: false [2020-10-24 23:19:58,282 INFO L274 CegarLoopResult]: For program point L111(lines 111 116) no Hoare annotation was computed. [2020-10-24 23:19:58,282 INFO L270 CegarLoopResult]: At program point L128(lines 119 129) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) |ULTIMATE.start_main_#t~short36|) [2020-10-24 23:19:58,283 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-10-24 23:19:58,283 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) |ULTIMATE.start_main_#t~short36|) [2020-10-24 23:19:58,284 INFO L274 CegarLoopResult]: For program point L23(lines 23 27) no Hoare annotation was computed. [2020-10-24 23:19:58,284 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-10-24 23:19:58,284 INFO L274 CegarLoopResult]: For program point L23-1(lines 16 29) no Hoare annotation was computed. [2020-10-24 23:19:58,284 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 27) no Hoare annotation was computed. [2020-10-24 23:19:58,284 INFO L274 CegarLoopResult]: For program point L81(lines 81 97) no Hoare annotation was computed. [2020-10-24 23:19:58,285 INFO L274 CegarLoopResult]: For program point L73(lines 73 98) no Hoare annotation was computed. [2020-10-24 23:19:58,285 INFO L274 CegarLoopResult]: For program point L65(lines 65 72) no Hoare annotation was computed. [2020-10-24 23:19:58,285 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-24 23:19:58,285 INFO L274 CegarLoopResult]: For program point L90(lines 90 96) no Hoare annotation was computed. [2020-10-24 23:19:58,285 INFO L274 CegarLoopResult]: For program point L90-2(lines 73 98) no Hoare annotation was computed. [2020-10-24 23:19:58,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-24 23:19:58,286 INFO L277 CegarLoopResult]: At program point L148(lines 131 149) the Hoare annotation is: true [2020-10-24 23:19:58,286 INFO L274 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-24 23:19:58,286 INFO L274 CegarLoopResult]: For program point L82(lines 82 88) no Hoare annotation was computed. [2020-10-24 23:19:58,286 INFO L274 CegarLoopResult]: For program point L115-2(line 115) no Hoare annotation was computed. [2020-10-24 23:19:58,287 INFO L270 CegarLoopResult]: At program point L115-3(lines 55 117) the Hoare annotation is: (and (= (_ +zero 8 24) |ULTIMATE.start_atan_float_#res|) (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-10-24 23:19:58,287 INFO L274 CegarLoopResult]: For program point L74(lines 74 77) no Hoare annotation was computed. [2020-10-24 23:19:58,287 INFO L274 CegarLoopResult]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2020-10-24 23:19:58,287 INFO L274 CegarLoopResult]: For program point L66(lines 66 67) no Hoare annotation was computed. [2020-10-24 23:19:58,288 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-24 23:19:58,288 INFO L274 CegarLoopResult]: For program point L75(lines 75 76) no Hoare annotation was computed. [2020-10-24 23:19:58,288 INFO L274 CegarLoopResult]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2020-10-24 23:19:58,288 INFO L270 CegarLoopResult]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= ULTIMATE.start_atan_float_~x (_ +zero 8 24)) (= currentRoundingMode roundNearestTiesToEven) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_atan~0) (= ~huge_atan~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-10-24 23:19:58,289 INFO L274 CegarLoopResult]: For program point L59-3(lines 59 63) no Hoare annotation was computed. [2020-10-24 23:19:58,289 INFO L274 CegarLoopResult]: For program point L18-1(lines 18 22) no Hoare annotation was computed. [2020-10-24 23:19:58,289 INFO L270 CegarLoopResult]: At program point L18-2(lines 18 22) the Hoare annotation is: false [2020-10-24 23:19:58,289 INFO L274 CegarLoopResult]: For program point L68(lines 68 71) no Hoare annotation was computed. [2020-10-24 23:19:58,302 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,305 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,306 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,312 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,312 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,313 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,317 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,319 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,321 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,322 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,324 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,325 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,326 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,328 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,328 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,329 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,331 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,339 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,342 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,348 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,349 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,351 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,352 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,352 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:19:58 BoogieIcfgContainer [2020-10-24 23:19:58,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 23:19:58,359 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-24 23:19:58,359 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-24 23:19:58,361 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-24 23:19:58,362 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:19:38" (3/4) ... [2020-10-24 23:19:58,367 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-24 23:19:58,392 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-24 23:19:58,393 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-24 23:19:58,394 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:19:58,394 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-24 23:19:58,437 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) [2020-10-24 23:19:58,439 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-24 23:19:58,441 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-10-24 23:19:58,526 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-24 23:19:58,526 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-24 23:19:58,528 INFO L168 Benchmark]: Toolchain (without parser) took 30111.31 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.7 MB in the beginning and 26.5 MB in the end (delta: -7.8 MB). Peak memory consumption was 16.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:58,529 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory was 24.7 MB in the beginning and 24.6 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-24 23:19:58,530 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.95 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.1 MB in the beginning and 31.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:58,531 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.34 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 29.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:58,531 INFO L168 Benchmark]: Boogie Preprocessor took 54.78 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 27.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:58,532 INFO L168 Benchmark]: RCFGBuilder took 9675.07 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 20.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:58,533 INFO L168 Benchmark]: TraceAbstraction took 19694.39 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 15.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:58,533 INFO L168 Benchmark]: Witness Printer took 167.37 ms. Allocated memory is still 50.3 MB. Free memory was 15.1 MB in the beginning and 26.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. [2020-10-24 23:19:58,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 41.9 MB. Free memory was 24.7 MB in the beginning and 24.6 MB in the end (delta: 52.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 432.95 ms. Allocated memory was 41.9 MB in the beginning and 50.3 MB in the end (delta: 8.4 MB). Free memory was 18.1 MB in the beginning and 31.7 MB in the end (delta: -13.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 70.34 ms. Allocated memory is still 50.3 MB. Free memory was 31.7 MB in the beginning and 29.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 54.78 ms. Allocated memory is still 50.3 MB. Free memory was 29.3 MB in the beginning and 27.1 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 9675.07 ms. Allocated memory is still 50.3 MB. Free memory was 27.1 MB in the beginning and 20.4 MB in the end (delta: 6.7 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 19694.39 ms. Allocated memory is still 50.3 MB. Free memory was 32.3 MB in the beginning and 15.5 MB in the end (delta: 16.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * Witness Printer took 167.37 ms. Allocated memory is still 50.3 MB. Free memory was 15.1 MB in the beginning and 26.5 MB in the end (delta: -11.4 MB). Peak memory consumption was 2.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 55]: Loop Invariant [2020-10-24 23:19:58,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,557 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,561 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 119]: Loop Invariant [2020-10-24 23:19:58,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,563 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,563 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,563 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,564 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,564 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,567 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,571 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,571 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,572 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2020-10-24 23:19:58,573 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,574 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,575 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,575 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,578 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,579 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30))) && ~Pluszero~LONGDOUBLE() == x) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 59]: Loop Invariant [2020-10-24 23:19:58,580 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,581 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,582 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,583 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-24 23:19:58,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,583 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-24 23:19:58,584 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_atan) && huge_atan == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 131]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 11.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 183 SDslu, 183 SDs, 0 SdLazy, 79 SolverSat, 13 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 10.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 5 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 12 NumberOfFragments, 122 HoareAnnotationTreeSize, 7 FomulaSimplifications, 20 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.8s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 124 ConstructedInterpolants, 12 QuantifiedInterpolants, 8909 SizeOfPredicates, 28 NumberOfNonLiveVariables, 523 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...