./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d 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_1.3.100.v20150511-1540.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_0270a.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 db1a0648fa242e1728c1c06c3b545dcc4e795062 .................................................................................................................................................................................................................................................................................................. 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_1.3.100.v20150511-1540.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_0270a.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 db1a0648fa242e1728c1c06c3b545dcc4e795062 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 00:33:40,922 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:33:40,924 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:33:40,947 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:33:40,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:33:40,949 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:33:40,950 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:33:40,952 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:33:40,954 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:33:40,955 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:33:40,956 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:33:40,957 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:33:40,957 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:33:40,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:33:40,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:33:40,960 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:33:40,967 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:33:40,968 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:33:40,973 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:33:40,977 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:33:40,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:33:40,981 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:33:40,984 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:33:40,985 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:33:40,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:33:40,990 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:33:40,991 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:33:40,992 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:33:40,993 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:33:40,993 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:33:40,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:33:40,994 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:33:40,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:33:40,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:33:40,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:33:40,999 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:33:40,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:33:40,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:33:41,000 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:33:41,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:33:41,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:33:41,003 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 00:33:41,051 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:33:41,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:33:41,055 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:33:41,055 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:33:41,056 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:33:41,056 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:33:41,056 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:33:41,056 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 00:33:41,056 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:33:41,057 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:33:41,057 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:33:41,057 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:33:41,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:33:41,058 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:33:41,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:33:41,058 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:33:41,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:33:41,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:33:41,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:33:41,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:33:41,060 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:33:41,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:41,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:33:41,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:33:41,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:33:41,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 00:33:41,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 00:33:41,061 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:33:41,061 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:33:41,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2020-10-20 00:33:41,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:33:41,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:33:41,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:33:41,304 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:33:41,304 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:33:41,305 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-10-20 00:33:41,377 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475b48841/78246df7eab142468a2196e4efa6b4de/FLAG787835b0c [2020-10-20 00:33:41,963 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:33:41,964 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-10-20 00:33:41,973 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475b48841/78246df7eab142468a2196e4efa6b4de/FLAG787835b0c [2020-10-20 00:33:42,381 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/475b48841/78246df7eab142468a2196e4efa6b4de [2020-10-20 00:33:42,386 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:33:42,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:33:42,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:42,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:33:42,403 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:33:42,404 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,407 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43076c5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42, skipping insertion in model container [2020-10-20 00:33:42,407 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:33:42,459 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:33:42,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:42,751 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:33:42,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:42,827 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:33:42,828 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42 WrapperNode [2020-10-20 00:33:42,828 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:42,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:42,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:33:42,829 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:33:42,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,858 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,896 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:42,896 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:33:42,896 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:33:42,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:33:42,907 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,912 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,913 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,936 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (1/1) ... [2020-10-20 00:33:42,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:33:42,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:33:42,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:33:42,942 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:33:42,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (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 [2020-10-20 00:33:43,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 00:33:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:33:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-10-20 00:33:43,013 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 00:33:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-10-20 00:33:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:33:43,014 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:33:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 00:33:43,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:33:43,634 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:33:43,640 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-10-20 00:33:43,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:43 BoogieIcfgContainer [2020-10-20 00:33:43,643 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:33:43,645 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:33:43,645 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:33:43,649 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:33:43,649 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:33:42" (1/3) ... [2020-10-20 00:33:43,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cfeccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:43, skipping insertion in model container [2020-10-20 00:33:43,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:42" (2/3) ... [2020-10-20 00:33:43,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19cfeccf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:43, skipping insertion in model container [2020-10-20 00:33:43,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:43" (3/3) ... [2020-10-20 00:33:43,654 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2020-10-20 00:33:43,666 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:33:43,674 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:33:43,689 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:33:43,719 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:33:43,719 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:33:43,719 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:33:43,719 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:33:43,719 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:33:43,720 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:33:43,720 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:33:43,720 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:33:43,734 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-10-20 00:33:43,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:33:43,739 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:43,740 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:43,740 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:43,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:43,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2020-10-20 00:33:43,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:33:43,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101371249] [2020-10-20 00:33:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:33:43,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:33:43,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:33:43,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101371249] [2020-10-20 00:33:43,914 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:33:43,915 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 00:33:43,916 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710480120] [2020-10-20 00:33:43,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:33:43,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 00:33:43,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:33:43,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:33:43,938 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-10-20 00:33:43,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:33:43,961 INFO L93 Difference]: Finished difference Result 119 states and 193 transitions. [2020-10-20 00:33:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:33:43,963 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:33:43,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:33:43,976 INFO L225 Difference]: With dead ends: 119 [2020-10-20 00:33:43,976 INFO L226 Difference]: Without dead ends: 57 [2020-10-20 00:33:43,980 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 [2020-10-20 00:33:43,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-20 00:33:44,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-20 00:33:44,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 00:33:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2020-10-20 00:33:44,018 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2020-10-20 00:33:44,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:33:44,018 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2020-10-20 00:33:44,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:33:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2020-10-20 00:33:44,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:33:44,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:44,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:44,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 00:33:44,020 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:44,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:44,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2020-10-20 00:33:44,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 00:33:44,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366337766] [2020-10-20 00:33:44,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 00:33:44,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:44,063 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 00:33:44,090 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 00:33:44,136 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 00:33:44,136 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 00:33:44,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 00:33:44,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:33:44 BoogieIcfgContainer [2020-10-20 00:33:44,185 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:33:44,186 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:33:44,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:33:44,186 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:33:44,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:43" (3/4) ... [2020-10-20 00:33:44,191 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-10-20 00:33:44,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:33:44,194 INFO L168 Benchmark]: Toolchain (without parser) took 1805.62 ms. Allocated memory was 39.8 MB in the beginning and 45.1 MB in the end (delta: 5.2 MB). Free memory was 17.0 MB in the beginning and 20.7 MB in the end (delta: -3.7 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,195 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,196 INFO L168 Benchmark]: CACSL2BoogieTranslator took 429.82 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 16.2 MB in the beginning and 11.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,197 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.17 ms. Allocated memory was 40.9 MB in the beginning and 41.4 MB in the end (delta: 524.3 kB). Free memory was 11.6 MB in the beginning and 23.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 773.3 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,198 INFO L168 Benchmark]: Boogie Preprocessor took 44.94 ms. Allocated memory is still 41.4 MB. Free memory was 23.4 MB in the beginning and 21.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,199 INFO L168 Benchmark]: RCFGBuilder took 701.78 ms. Allocated memory was 41.4 MB in the beginning and 44.0 MB in the end (delta: 2.6 MB). Free memory was 21.0 MB in the beginning and 18.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,200 INFO L168 Benchmark]: TraceAbstraction took 540.81 ms. Allocated memory was 44.0 MB in the beginning and 45.1 MB in the end (delta: 1.0 MB). Free memory was 18.2 MB in the beginning and 21.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,201 INFO L168 Benchmark]: Witness Printer took 5.53 ms. Allocated memory is still 45.1 MB. Free memory was 21.0 MB in the beginning and 20.7 MB in the end (delta: 316.4 kB). Peak memory consumption was 316.4 kB. Max. memory is 14.3 GB. [2020-10-20 00:33:44,207 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 30.9 MB. Free memory was 6.1 MB in the beginning and 6.0 MB in the end (delta: 41.7 kB). Peak memory consumption was 41.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 429.82 ms. Allocated memory was 39.8 MB in the beginning and 40.9 MB in the end (delta: 1.0 MB). Free memory was 16.2 MB in the beginning and 11.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.4 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 67.17 ms. Allocated memory was 40.9 MB in the beginning and 41.4 MB in the end (delta: 524.3 kB). Free memory was 11.6 MB in the beginning and 23.4 MB in the end (delta: -11.8 MB). Peak memory consumption was 773.3 kB. Max. memory is 14.3 GB. * Boogie Preprocessor took 44.94 ms. Allocated memory is still 41.4 MB. Free memory was 23.4 MB in the beginning and 21.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 14.3 GB. * RCFGBuilder took 701.78 ms. Allocated memory was 41.4 MB in the beginning and 44.0 MB in the end (delta: 2.6 MB). Free memory was 21.0 MB in the beginning and 18.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 11.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 540.81 ms. Allocated memory was 44.0 MB in the beginning and 45.1 MB in the end (delta: 1.0 MB). Free memory was 18.2 MB in the beginning and 21.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 10.9 MB. Max. memory is 14.3 GB. * Witness Printer took 5.53 ms. Allocated memory is still 45.1 MB. Free memory was 21.0 MB in the beginning and 20.7 MB in the end (delta: 316.4 kB). Peak memory consumption was 316.4 kB. Max. memory is 14.3 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 195, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L195] float x = -0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L3] __assert_fail("0", "float_req_bl_0270a.c", 3, "reach_error") VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 78 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=61occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 0.1.25-9a8b2e8 [2020-10-20 00:33:46,342 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 00:33:46,346 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 00:33:46,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 00:33:46,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 00:33:46,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 00:33:46,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 00:33:46,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 00:33:46,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 00:33:46,405 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 00:33:46,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 00:33:46,408 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 00:33:46,408 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 00:33:46,412 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 00:33:46,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 00:33:46,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 00:33:46,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 00:33:46,417 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 00:33:46,419 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 00:33:46,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 00:33:46,428 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 00:33:46,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 00:33:46,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 00:33:46,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 00:33:46,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 00:33:46,452 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 00:33:46,452 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 00:33:46,453 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 00:33:46,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 00:33:46,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 00:33:46,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 00:33:46,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 00:33:46,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 00:33:46,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 00:33:46,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 00:33:46,463 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 00:33:46,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 00:33:46,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 00:33:46,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 00:33:46,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 00:33:46,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 00:33:46,469 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-10-20 00:33:46,503 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 00:33:46,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 00:33:46,504 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 00:33:46,505 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 00:33:46,505 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 00:33:46,505 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 00:33:46,506 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 00:33:46,506 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 00:33:46,506 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 00:33:46,506 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 00:33:46,507 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 00:33:46,507 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 00:33:46,507 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-10-20 00:33:46,507 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-10-20 00:33:46,508 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 00:33:46,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 00:33:46,508 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 00:33:46,508 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 00:33:46,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 00:33:46,509 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 00:33:46,509 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 00:33:46,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 00:33:46,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 00:33:46,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 00:33:46,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 00:33:46,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 00:33:46,510 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-10-20 00:33:46,511 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-10-20 00:33:46,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 00:33:46,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 00:33:46,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-20 00:33:46,512 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2020-10-20 00:33:46,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 00:33:46,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 00:33:46,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 00:33:46,727 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 00:33:46,727 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 00:33:46,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-10-20 00:33:46,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18fc5732/c10947f09a95470c97084366a7b862bd/FLAGde45045c9 [2020-10-20 00:33:47,349 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 00:33:47,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2020-10-20 00:33:47,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18fc5732/c10947f09a95470c97084366a7b862bd/FLAGde45045c9 [2020-10-20 00:33:47,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a18fc5732/c10947f09a95470c97084366a7b862bd [2020-10-20 00:33:47,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 00:33:47,691 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 00:33:47,692 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:47,692 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 00:33:47,696 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 00:33:47,697 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:47" (1/1) ... [2020-10-20 00:33:47,699 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52cd45cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:47, skipping insertion in model container [2020-10-20 00:33:47,700 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 12:33:47" (1/1) ... [2020-10-20 00:33:47,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 00:33:47,747 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 00:33:47,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:48,009 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 00:33:48,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 00:33:48,086 INFO L208 MainTranslator]: Completed translation [2020-10-20 00:33:48,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48 WrapperNode [2020-10-20 00:33:48,086 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 00:33:48,087 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:48,089 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 00:33:48,089 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 00:33:48,100 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 00:33:48,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 00:33:48,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 00:33:48,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 00:33:48,174 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,174 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,219 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,237 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (1/1) ... [2020-10-20 00:33:48,246 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 00:33:48,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 00:33:48,247 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 00:33:48,247 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 00:33:48,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (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 [2020-10-20 00:33:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-10-20 00:33:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 00:33:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-10-20 00:33:48,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-10-20 00:33:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 00:33:48,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 00:33:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-10-20 00:33:48,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-10-20 00:33:48,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 00:33:59,358 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 00:33:59,359 INFO L298 CfgBuilder]: Removed 32 assume(true) statements. [2020-10-20 00:33:59,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:59 BoogieIcfgContainer [2020-10-20 00:33:59,361 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 00:33:59,362 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 00:33:59,362 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 00:33:59,365 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 00:33:59,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 12:33:47" (1/3) ... [2020-10-20 00:33:59,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573b1bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:59, skipping insertion in model container [2020-10-20 00:33:59,367 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 12:33:48" (2/3) ... [2020-10-20 00:33:59,367 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@573b1bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 12:33:59, skipping insertion in model container [2020-10-20 00:33:59,368 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:59" (3/3) ... [2020-10-20 00:33:59,369 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2020-10-20 00:33:59,381 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 00:33:59,388 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 00:33:59,401 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 00:33:59,424 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 00:33:59,425 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 00:33:59,425 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 00:33:59,425 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 00:33:59,425 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 00:33:59,426 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 00:33:59,426 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 00:33:59,426 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 00:33:59,438 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states. [2020-10-20 00:33:59,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-20 00:33:59,444 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:33:59,445 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:33:59,446 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:33:59,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:33:59,452 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2020-10-20 00:33:59,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:33:59,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [410372841] [2020-10-20 00:33:59,464 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 [2020-10-20 00:33:59,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:00,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-10-20 00:34:00,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:00,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:00,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:00,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:00,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [410372841] [2020-10-20 00:34:00,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:00,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-10-20 00:34:00,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782530813] [2020-10-20 00:34:00,064 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-20 00:34:00,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:00,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-20 00:34:00,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:34:00,076 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 2 states. [2020-10-20 00:34:00,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:00,099 INFO L93 Difference]: Finished difference Result 119 states and 193 transitions. [2020-10-20 00:34:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-20 00:34:00,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-20 00:34:00,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:00,113 INFO L225 Difference]: With dead ends: 119 [2020-10-20 00:34:00,113 INFO L226 Difference]: Without dead ends: 57 [2020-10-20 00:34:00,117 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-20 00:34:00,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-20 00:34:00,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-20 00:34:00,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 00:34:00,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2020-10-20 00:34:00,177 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2020-10-20 00:34:00,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:00,178 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2020-10-20 00:34:00,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-20 00:34:00,178 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2020-10-20 00:34:00,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 00:34:00,179 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:00,179 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:00,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-20 00:34:00,387 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:00,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:00,388 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2020-10-20 00:34:00,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:34:00,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534595658] [2020-10-20 00:34:00,390 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 [2020-10-20 00:34:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:00,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-20 00:34:00,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:01,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:01,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:01,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:01,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534595658] [2020-10-20 00:34:01,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:01,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-10-20 00:34:01,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972460809] [2020-10-20 00:34:01,119 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-20 00:34:01,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:01,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-20 00:34:01,120 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-20 00:34:01,120 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand 8 states. [2020-10-20 00:34:02,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:02,450 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2020-10-20 00:34:02,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-20 00:34:02,456 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-10-20 00:34:02,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:02,457 INFO L225 Difference]: With dead ends: 104 [2020-10-20 00:34:02,457 INFO L226 Difference]: Without dead ends: 57 [2020-10-20 00:34:02,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:34:02,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-20 00:34:02,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-20 00:34:02,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 00:34:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2020-10-20 00:34:02,480 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2020-10-20 00:34:02,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:02,481 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2020-10-20 00:34:02,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-20 00:34:02,482 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2020-10-20 00:34:02,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-20 00:34:02,485 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:02,485 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:02,699 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-20 00:34:02,700 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:02,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:02,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2020-10-20 00:34:02,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:34:02,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045940018] [2020-10-20 00:34:02,704 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 [2020-10-20 00:34:03,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:03,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:34:03,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:03,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:03,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:03,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:03,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045940018] [2020-10-20 00:34:03,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:03,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-10-20 00:34:03,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82812667] [2020-10-20 00:34:03,357 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-20 00:34:03,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:03,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-20 00:34:03,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 00:34:03,358 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand 7 states. [2020-10-20 00:34:03,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:03,541 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2020-10-20 00:34:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 00:34:03,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2020-10-20 00:34:03,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:03,543 INFO L225 Difference]: With dead ends: 69 [2020-10-20 00:34:03,543 INFO L226 Difference]: Without dead ends: 66 [2020-10-20 00:34:03,543 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-20 00:34:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-10-20 00:34:03,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2020-10-20 00:34:03,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-10-20 00:34:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2020-10-20 00:34:03,554 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2020-10-20 00:34:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:03,554 INFO L481 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2020-10-20 00:34:03,555 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-20 00:34:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2020-10-20 00:34:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-20 00:34:03,556 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:03,556 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:03,771 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-20 00:34:03,772 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:03,772 INFO L82 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2020-10-20 00:34:03,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:34:03,774 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1460378786] [2020-10-20 00:34:03,774 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 [2020-10-20 00:34:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:04,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 14 conjunts are in the unsatisfiable core [2020-10-20 00:34:04,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:04,285 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-20 00:34:04,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:04,318 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:04,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:04,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1460378786] [2020-10-20 00:34:04,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:04,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-10-20 00:34:04,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620474142] [2020-10-20 00:34:04,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-20 00:34:04,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:04,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-20 00:34:04,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-10-20 00:34:04,563 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand 14 states. [2020-10-20 00:34:05,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:05,017 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2020-10-20 00:34:05,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-20 00:34:05,018 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 18 [2020-10-20 00:34:05,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:05,019 INFO L225 Difference]: With dead ends: 66 [2020-10-20 00:34:05,019 INFO L226 Difference]: Without dead ends: 57 [2020-10-20 00:34:05,020 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2020-10-20 00:34:05,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-10-20 00:34:05,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-10-20 00:34:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-10-20 00:34:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2020-10-20 00:34:05,028 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2020-10-20 00:34:05,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:05,028 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2020-10-20 00:34:05,029 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-20 00:34:05,029 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2020-10-20 00:34:05,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-10-20 00:34:05,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 00:34:05,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 00:34:05,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-20 00:34:05,244 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 00:34:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 00:34:05,245 INFO L82 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2020-10-20 00:34:05,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-10-20 00:34:05,247 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [759082059] [2020-10-20 00:34:05,247 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 [2020-10-20 00:34:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 00:34:07,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-20 00:34:07,246 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 00:34:07,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:07,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-20 00:34:07,728 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-10-20 00:34:07,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 00:34:07,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [759082059] [2020-10-20 00:34:07,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-20 00:34:07,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-10-20 00:34:07,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972269843] [2020-10-20 00:34:07,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 00:34:07,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-10-20 00:34:07,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 00:34:07,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:34:07,838 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand 6 states. [2020-10-20 00:34:07,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 00:34:07,914 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2020-10-20 00:34:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 00:34:07,919 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2020-10-20 00:34:07,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 00:34:07,919 INFO L225 Difference]: With dead ends: 57 [2020-10-20 00:34:07,919 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 00:34:07,920 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-20 00:34:07,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 00:34:07,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 00:34:07,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 00:34:07,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 00:34:07,921 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2020-10-20 00:34:07,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 00:34:07,921 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 00:34:07,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 00:34:07,921 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 00:34:07,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 00:34:08,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-20 00:34:08,129 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 00:34:08,364 INFO L270 CegarLoopResult]: At program point L184(lines 119 185) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-10-20 00:34:08,364 INFO L274 CegarLoopResult]: For program point L135(lines 135 136) no Hoare annotation was computed. [2020-10-20 00:34:08,364 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-20 00:34:08,364 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-20 00:34:08,365 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 00:34:08,365 INFO L274 CegarLoopResult]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2020-10-20 00:34:08,365 INFO L270 CegarLoopResult]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2020-10-20 00:34:08,366 INFO L274 CegarLoopResult]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2020-10-20 00:34:08,366 INFO L274 CegarLoopResult]: For program point L170(lines 170 174) no Hoare annotation was computed. [2020-10-20 00:34:08,366 INFO L274 CegarLoopResult]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2020-10-20 00:34:08,378 INFO L274 CegarLoopResult]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2020-10-20 00:34:08,378 INFO L277 CegarLoopResult]: At program point L204(lines 187 205) the Hoare annotation is: true [2020-10-20 00:34:08,378 INFO L274 CegarLoopResult]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2020-10-20 00:34:08,379 INFO L270 CegarLoopResult]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (= ULTIMATE.start___ieee754_asinf_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0)))) [2020-10-20 00:34:08,379 INFO L274 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-10-20 00:34:08,379 INFO L274 CegarLoopResult]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2020-10-20 00:34:08,379 INFO L270 CegarLoopResult]: At program point L23(lines 14 24) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short28| (= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32)) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 ULTIMATE.start_main_~res~0) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-10-20 00:34:08,379 INFO L274 CegarLoopResult]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2020-10-20 00:34:08,379 INFO L270 CegarLoopResult]: At program point L106(lines 94 107) the Hoare annotation is: false [2020-10-20 00:34:08,379 INFO L274 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-10-20 00:34:08,380 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 00:34:08,380 INFO L274 CegarLoopResult]: For program point L75(lines 75 84) no Hoare annotation was computed. [2020-10-20 00:34:08,380 INFO L270 CegarLoopResult]: At program point L92(lines 28 93) the Hoare annotation is: false [2020-10-20 00:34:08,382 INFO L274 CegarLoopResult]: For program point L43(lines 43 44) no Hoare annotation was computed. [2020-10-20 00:34:08,382 INFO L274 CegarLoopResult]: For program point L159(lines 159 180) no Hoare annotation was computed. [2020-10-20 00:34:08,382 INFO L274 CegarLoopResult]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2020-10-20 00:34:08,383 INFO L274 CegarLoopResult]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-10-20 00:34:08,387 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 00:34:08,387 INFO L274 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2020-10-20 00:34:08,387 INFO L274 CegarLoopResult]: For program point L128(lines 128 148) no Hoare annotation was computed. [2020-10-20 00:34:08,387 INFO L274 CegarLoopResult]: For program point L79(lines 79 82) no Hoare annotation was computed. [2020-10-20 00:34:08,387 INFO L274 CegarLoopResult]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2020-10-20 00:34:08,387 INFO L270 CegarLoopResult]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2020-10-20 00:34:08,388 INFO L270 CegarLoopResult]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2020-10-20 00:34:08,388 INFO L274 CegarLoopResult]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2020-10-20 00:34:08,388 INFO L274 CegarLoopResult]: For program point L131(lines 131 148) no Hoare annotation was computed. [2020-10-20 00:34:08,388 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 00:34:08,388 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-20 00:34:08,388 INFO L274 CegarLoopResult]: For program point L49(lines 49 53) no Hoare annotation was computed. [2020-10-20 00:34:08,388 INFO L274 CegarLoopResult]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2020-10-20 00:34:08,388 INFO L274 CegarLoopResult]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2020-10-20 00:34:08,388 INFO L270 CegarLoopResult]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2020-10-20 00:34:08,389 INFO L274 CegarLoopResult]: For program point L66(lines 66 70) no Hoare annotation was computed. [2020-10-20 00:34:08,389 INFO L274 CegarLoopResult]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2020-10-20 00:34:08,389 INFO L274 CegarLoopResult]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2020-10-20 00:34:08,389 INFO L270 CegarLoopResult]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2020-10-20 00:34:08,389 INFO L274 CegarLoopResult]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2020-10-20 00:34:08,389 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2020-10-20 00:34:08,389 INFO L274 CegarLoopResult]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2020-10-20 00:34:08,389 INFO L270 CegarLoopResult]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2020-10-20 00:34:08,390 INFO L270 CegarLoopResult]: At program point L17-2(lines 17 21) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and |ULTIMATE.start_main_#t~short28| (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)) (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) (= .cse0 ULTIMATE.start___signbit_float_~x) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 ULTIMATE.start_main_~res~0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1))))) [2020-10-20 00:34:08,390 INFO L274 CegarLoopResult]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2020-10-20 00:34:08,390 INFO L274 CegarLoopResult]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2020-10-20 00:34:08,390 INFO L274 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-20 00:34:08,390 INFO L274 CegarLoopResult]: For program point L133(lines 133 148) no Hoare annotation was computed. [2020-10-20 00:34:08,390 INFO L274 CegarLoopResult]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2020-10-20 00:34:08,390 INFO L274 CegarLoopResult]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2020-10-20 00:34:08,391 INFO L274 CegarLoopResult]: For program point L134(lines 134 147) no Hoare annotation was computed. [2020-10-20 00:34:08,391 INFO L274 CegarLoopResult]: For program point L101(lines 101 105) no Hoare annotation was computed. [2020-10-20 00:34:08,391 INFO L274 CegarLoopResult]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2020-10-20 00:34:08,391 INFO L274 CegarLoopResult]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2020-10-20 00:34:08,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,410 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,413 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,419 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:08,419 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,420 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,421 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:08,422 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,422 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,422 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,423 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,423 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 12:34:08 BoogieIcfgContainer [2020-10-20 00:34:08,425 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 00:34:08,426 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 00:34:08,426 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 00:34:08,426 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 00:34:08,427 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 12:33:59" (3/4) ... [2020-10-20 00:34:08,430 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 00:34:08,444 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-10-20 00:34:08,445 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-10-20 00:34:08,445 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:34:08,446 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 00:34:08,475 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-10-20 00:34:08,476 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-10-20 00:34:08,477 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) [2020-10-20 00:34:08,517 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 00:34:08,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 00:34:08,519 INFO L168 Benchmark]: Toolchain (without parser) took 20833.69 ms. Allocated memory was 40.9 MB in the beginning and 56.1 MB in the end (delta: 15.2 MB). Free memory was 19.0 MB in the beginning and 21.9 MB in the end (delta: -2.9 MB). Peak memory consumption was 12.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,520 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.7 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.93 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 18.1 MB in the beginning and 11.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.48 ms. Allocated memory was 41.9 MB in the beginning and 43.0 MB in the end (delta: 1.0 MB). Free memory was 11.5 MB in the beginning and 25.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,521 INFO L168 Benchmark]: Boogie Preprocessor took 84.98 ms. Allocated memory is still 43.0 MB. Free memory was 25.2 MB in the beginning and 22.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,522 INFO L168 Benchmark]: RCFGBuilder took 11114.56 ms. Allocated memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: 3.1 MB). Free memory was 22.5 MB in the beginning and 19.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,523 INFO L168 Benchmark]: TraceAbstraction took 9063.45 ms. Allocated memory was 46.1 MB in the beginning and 56.1 MB in the end (delta: 10.0 MB). Free memory was 18.9 MB in the beginning and 29.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,523 INFO L168 Benchmark]: Witness Printer took 91.74 ms. Allocated memory is still 56.1 MB. Free memory was 28.7 MB in the beginning and 21.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. [2020-10-20 00:34:08,526 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 31.5 MB. Free memory was 7.7 MB in the beginning and 7.7 MB in the end (delta: 43.7 kB). Peak memory consumption was 43.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 394.93 ms. Allocated memory was 40.9 MB in the beginning and 41.9 MB in the end (delta: 1.0 MB). Free memory was 18.1 MB in the beginning and 11.6 MB in the end (delta: 6.5 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 73.48 ms. Allocated memory was 41.9 MB in the beginning and 43.0 MB in the end (delta: 1.0 MB). Free memory was 11.5 MB in the beginning and 25.2 MB in the end (delta: -13.7 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 84.98 ms. Allocated memory is still 43.0 MB. Free memory was 25.2 MB in the beginning and 22.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * RCFGBuilder took 11114.56 ms. Allocated memory was 43.0 MB in the beginning and 46.1 MB in the end (delta: 3.1 MB). Free memory was 22.5 MB in the beginning and 19.5 MB in the end (delta: 3.0 MB). Peak memory consumption was 13.7 MB. Max. memory is 14.3 GB. * TraceAbstraction took 9063.45 ms. Allocated memory was 46.1 MB in the beginning and 56.1 MB in the end (delta: 10.0 MB). Free memory was 18.9 MB in the beginning and 29.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 16.6 MB. Max. memory is 14.3 GB. * Witness Printer took 91.74 ms. Allocated memory is still 56.1 MB. Free memory was 28.7 MB in the beginning and 21.9 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - 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 * 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: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2020-10-20 00:34:08,539 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,540 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,542 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((aux-res == -0.0f && __signbit_float(res) == 1-aux && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant [2020-10-20 00:34:08,544 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,544 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,545 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((aux-res == -0.0f && __signbit_float(res) == 1-aux && ~bvadd64(\result, 4294967295bv32) == 0bv32) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 119]: Loop Invariant [2020-10-20 00:34:08,547 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,547 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,549 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,549 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,549 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2020-10-20 00:34:08,549 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]))) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) - InvariantResult [Line: 122]: Loop Invariant [2020-10-20 00:34:08,550 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:08,550 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,551 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,552 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-10-20 00:34:08,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,552 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-10-20 00:34:08,553 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 8.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 267 SDtfs, 516 SDslu, 613 SDs, 0 SdLazy, 108 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 129 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred 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, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 172 HoareAnnotationTreeSize, 13 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 3.6s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 13 QuantifiedInterpolants, 16357 SizeOfPredicates, 28 NumberOfNonLiveVariables, 393 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...