./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c929687e1048988919d423afa09e6828bbc6230 ............................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c929687e1048988919d423afa09e6828bbc6230 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 15:09:52,031 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:09:52,033 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:09:52,096 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:09:52,097 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:09:52,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:09:52,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:09:52,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:09:52,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:09:52,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:09:52,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:09:52,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:09:52,117 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:09:52,124 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:09:52,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:09:52,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:09:52,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:09:52,134 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:09:52,143 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:09:52,148 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:09:52,151 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:09:52,152 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:09:52,155 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:09:52,156 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:09:52,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:09:52,170 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:09:52,170 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:09:52,171 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:09:52,173 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:09:52,174 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:09:52,175 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:09:52,176 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:09:52,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:09:52,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:09:52,181 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:09:52,181 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:09:52,182 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:09:52,182 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:09:52,182 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:09:52,183 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:09:52,184 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:09:52,187 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 15:09:52,222 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:09:52,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:09:52,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:09:52,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:09:52,224 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:09:52,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:09:52,225 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:09:52,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 15:09:52,225 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:09:52,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:09:52,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:09:52,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:09:52,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:09:52,227 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:09:52,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:09:52,227 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:09:52,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:09:52,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:09:52,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:09:52,228 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:09:52,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:09:52,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:09:52,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:09:52,229 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:09:52,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:09:52,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 15:09:52,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 15:09:52,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:09:52,230 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:09:52,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-12-01 15:09:52,475 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:09:52,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:09:52,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:09:52,522 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:09:52,524 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:09:52,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-12-01 15:09:52,624 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/ee3624d99/0b716d0f0e1f42b395bb1639567e0f26/FLAG7a7337b8a [2020-12-01 15:09:53,064 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:09:53,064 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-12-01 15:09:53,072 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/ee3624d99/0b716d0f0e1f42b395bb1639567e0f26/FLAG7a7337b8a [2020-12-01 15:09:53,450 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/ee3624d99/0b716d0f0e1f42b395bb1639567e0f26 [2020-12-01 15:09:53,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:09:53,454 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:09:53,456 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:53,456 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:09:53,459 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:09:53,460 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,461 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@741f6595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53, skipping insertion in model container [2020-12-01 15:09:53,462 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,472 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:09:53,493 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:09:53,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:53,725 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:09:53,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:53,766 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:09:53,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53 WrapperNode [2020-12-01 15:09:53,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:53,768 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:09:53,768 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:09:53,768 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:09:53,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,783 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:09:53,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:09:53,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:09:53,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:09:53,817 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,822 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,839 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... [2020-12-01 15:09:53,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:09:53,844 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:09:53,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:09:53,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:09:53,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:09:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 15:09:53,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:09:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 15:09:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 15:09:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 15:09:53,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:09:53,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:09:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 15:09:53,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:09:54,215 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:09:54,216 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-01 15:09:54,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:09:54 BoogieIcfgContainer [2020-12-01 15:09:54,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:09:54,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:09:54,220 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:09:54,223 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:09:54,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:09:53" (1/3) ... [2020-12-01 15:09:54,224 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff7f452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:09:54, skipping insertion in model container [2020-12-01 15:09:54,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:53" (2/3) ... [2020-12-01 15:09:54,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ff7f452 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:09:54, skipping insertion in model container [2020-12-01 15:09:54,225 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:09:54" (3/3) ... [2020-12-01 15:09:54,227 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-12-01 15:09:54,241 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:09:54,244 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:09:54,255 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:09:54,280 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:09:54,280 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:09:54,280 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:09:54,281 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:09:54,281 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:09:54,281 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:09:54,281 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:09:54,281 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:09:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-12-01 15:09:54,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:09:54,300 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:54,301 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:54,301 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:09:54,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:54,307 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-12-01 15:09:54,316 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:09:54,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055906439] [2020-12-01 15:09:54,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:09:54,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:09:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:09:54,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055906439] [2020-12-01 15:09:54,459 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:09:54,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 15:09:54,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709992822] [2020-12-01 15:09:54,465 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:09:54,465 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 15:09:54,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:09:54,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:09:54,482 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-12-01 15:09:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:09:54,502 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-12-01 15:09:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:09:54,504 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:09:54,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:09:54,513 INFO L225 Difference]: With dead ends: 73 [2020-12-01 15:09:54,513 INFO L226 Difference]: Without dead ends: 34 [2020-12-01 15:09:54,517 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 [2020-12-01 15:09:54,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-01 15:09:54,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-01 15:09:54,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-01 15:09:54,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-12-01 15:09:54,552 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-12-01 15:09:54,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:09:54,553 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-12-01 15:09:54,553 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:09:54,553 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-12-01 15:09:54,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:09:54,554 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:09:54,554 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:09:54,555 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 15:09:54,555 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:09:54,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:09:54,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-12-01 15:09:54,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 15:09:54,557 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145900573] [2020-12-01 15:09:54,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 15:09:54,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:09:54,612 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:09:54,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 15:09:54,654 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 15:09:54,695 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 15:09:54,701 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 15:09:54,702 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 15:09:54,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:09:54 BoogieIcfgContainer [2020-12-01 15:09:54,746 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:09:54,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:09:54,748 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:09:54,748 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:09:54,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:09:54" (3/4) ... [2020-12-01 15:09:54,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 15:09:54,753 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:09:54,757 INFO L168 Benchmark]: Toolchain (without parser) took 1299.71 ms. Allocated memory is still 102.8 MB. Free memory was 70.6 MB in the beginning and 31.8 MB in the end (delta: 38.8 MB). Peak memory consumption was 36.9 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:54,758 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory is still 31.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:54,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.40 ms. Allocated memory is still 102.8 MB. Free memory was 70.3 MB in the beginning and 78.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:54,761 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.20 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:54,762 INFO L168 Benchmark]: Boogie Preprocessor took 33.03 ms. Allocated memory is still 102.8 MB. Free memory was 76.9 MB in the beginning and 75.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:54,762 INFO L168 Benchmark]: RCFGBuilder took 374.03 ms. Allocated memory is still 102.8 MB. Free memory was 75.3 MB in the beginning and 54.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:54,764 INFO L168 Benchmark]: TraceAbstraction took 527.25 ms. Allocated memory is still 102.8 MB. Free memory was 54.4 MB in the beginning and 32.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:09:54,765 INFO L168 Benchmark]: Witness Printer took 5.54 ms. Allocated memory is still 102.8 MB. Free memory was 32.3 MB in the beginning and 31.8 MB in the end (delta: 525.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:09:54,774 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 73.4 MB. Free memory is still 31.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.40 ms. Allocated memory is still 102.8 MB. Free memory was 70.3 MB in the beginning and 78.9 MB in the end (delta: -8.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.20 ms. Allocated memory is still 102.8 MB. Free memory was 78.9 MB in the beginning and 76.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.03 ms. Allocated memory is still 102.8 MB. Free memory was 76.9 MB in the beginning and 75.8 MB in the end (delta: 1.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 374.03 ms. Allocated memory is still 102.8 MB. Free memory was 75.3 MB in the beginning and 54.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 527.25 ms. Allocated memory is still 102.8 MB. Free memory was 54.4 MB in the beginning and 32.3 MB in the end (delta: 22.1 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * Witness Printer took 5.54 ms. Allocated memory is still 102.8 MB. Free memory was 32.3 MB in the beginning and 31.8 MB in the end (delta: 525.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 107, overapproximation of bitwiseAnd at line 26, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = 0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L3] __assert_fail("0", "float_req_bl_0730b.c", 3, "reach_error") VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 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: 48 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s 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 0.2.0-69874e2 [2020-12-01 15:09:57,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 15:09:57,477 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 15:09:57,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 15:09:57,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 15:09:57,541 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 15:09:57,544 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 15:09:57,549 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 15:09:57,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 15:09:57,559 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 15:09:57,560 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 15:09:57,567 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 15:09:57,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 15:09:57,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 15:09:57,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 15:09:57,576 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 15:09:57,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 15:09:57,581 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 15:09:57,583 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 15:09:57,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 15:09:57,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 15:09:57,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 15:09:57,591 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 15:09:57,592 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 15:09:57,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 15:09:57,596 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 15:09:57,596 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 15:09:57,598 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 15:09:57,598 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 15:09:57,599 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 15:09:57,609 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 15:09:57,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 15:09:57,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 15:09:57,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 15:09:57,614 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 15:09:57,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 15:09:57,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 15:09:57,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 15:09:57,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 15:09:57,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 15:09:57,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 15:09:57,619 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 15:09:57,644 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 15:09:57,645 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 15:09:57,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 15:09:57,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 15:09:57,647 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 15:09:57,647 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 15:09:57,647 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 15:09:57,647 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 15:09:57,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 15:09:57,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 15:09:57,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 15:09:57,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 15:09:57,649 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 15:09:57,649 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 15:09:57,649 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 15:09:57,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 15:09:57,649 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 15:09:57,650 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 15:09:57,650 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 15:09:57,650 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 15:09:57,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 15:09:57,651 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 15:09:57,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:09:57,651 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 15:09:57,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 15:09:57,652 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 15:09:57,652 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 15:09:57,652 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 15:09:57,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 15:09:57,653 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 15:09:57,653 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 15:09:57,653 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c929687e1048988919d423afa09e6828bbc6230 [2020-12-01 15:09:58,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 15:09:58,027 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 15:09:58,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 15:09:58,035 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 15:09:58,036 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 15:09:58,037 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-12-01 15:09:58,114 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/f8c927e99/b621711fc76c409ba6cb19bb8ff12de4/FLAGb9ac8791e [2020-12-01 15:09:58,709 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 15:09:58,716 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-12-01 15:09:58,725 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/f8c927e99/b621711fc76c409ba6cb19bb8ff12de4/FLAGb9ac8791e [2020-12-01 15:09:59,059 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/data/f8c927e99/b621711fc76c409ba6cb19bb8ff12de4 [2020-12-01 15:09:59,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 15:09:59,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 15:09:59,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:59,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 15:09:59,071 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 15:09:59,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,074 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18807f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59, skipping insertion in model container [2020-12-01 15:09:59,074 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,081 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 15:09:59,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 15:09:59,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:59,371 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 15:09:59,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 15:09:59,442 INFO L208 MainTranslator]: Completed translation [2020-12-01 15:09:59,443 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59 WrapperNode [2020-12-01 15:09:59,443 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 15:09:59,444 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 15:09:59,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 15:09:59,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 15:09:59,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 15:09:59,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 15:09:59,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 15:09:59,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 15:09:59,498 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,503 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,503 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,519 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,524 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... [2020-12-01 15:09:59,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 15:09:59,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 15:09:59,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 15:09:59,530 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 15:09:59,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 15:09:59,629 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 15:09:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 15:09:59,630 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-01 15:09:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 15:09:59,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 15:09:59,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 15:09:59,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-01 15:09:59,634 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 15:09:59,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 15:10:01,808 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 15:10:01,809 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-12-01 15:10:01,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:10:01 BoogieIcfgContainer [2020-12-01 15:10:01,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 15:10:01,812 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 15:10:01,812 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 15:10:01,815 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 15:10:01,816 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 03:09:59" (1/3) ... [2020-12-01 15:10:01,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f374f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:10:01, skipping insertion in model container [2020-12-01 15:10:01,817 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 03:09:59" (2/3) ... [2020-12-01 15:10:01,817 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43f374f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 03:10:01, skipping insertion in model container [2020-12-01 15:10:01,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:10:01" (3/3) ... [2020-12-01 15:10:01,819 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-12-01 15:10:01,833 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 15:10:01,837 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 15:10:01,848 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 15:10:01,886 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 15:10:01,887 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 15:10:01,891 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 15:10:01,892 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 15:10:01,892 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 15:10:01,892 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 15:10:01,892 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 15:10:01,892 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 15:10:01,903 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-12-01 15:10:01,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-01 15:10:01,908 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:10:01,909 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:10:01,910 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:10:01,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:10:01,915 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-12-01 15:10:01,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:10:01,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1716217198] [2020-12-01 15:10:01,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 15:10:02,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:10:02,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 15:10:02,196 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:10:02,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:02,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:10:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:02,234 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1716217198] [2020-12-01 15:10:02,235 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:10:02,235 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 15:10:02,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989309423] [2020-12-01 15:10:02,240 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 15:10:02,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:10:02,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 15:10:02,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 15:10:02,256 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 2 states. [2020-12-01 15:10:02,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:10:02,275 INFO L93 Difference]: Finished difference Result 73 states and 113 transitions. [2020-12-01 15:10:02,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 15:10:02,276 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-12-01 15:10:02,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:10:02,285 INFO L225 Difference]: With dead ends: 73 [2020-12-01 15:10:02,285 INFO L226 Difference]: Without dead ends: 34 [2020-12-01 15:10:02,288 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 [2020-12-01 15:10:02,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-12-01 15:10:02,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-12-01 15:10:02,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-12-01 15:10:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-12-01 15:10:02,329 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-12-01 15:10:02,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:10:02,330 INFO L481 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-12-01 15:10:02,330 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 15:10:02,330 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-12-01 15:10:02,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 15:10:02,331 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:10:02,331 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:10:02,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 15:10:02,554 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:10:02,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:10:02,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-12-01 15:10:02,561 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:10:02,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [347636824] [2020-12-01 15:10:02,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 15:10:02,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:10:02,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-01 15:10:02,881 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:10:02,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:02,998 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:10:03,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:03,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [347636824] [2020-12-01 15:10:03,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:10:03,123 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-12-01 15:10:03,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728220628] [2020-12-01 15:10:03,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-01 15:10:03,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:10:03,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-01 15:10:03,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-12-01 15:10:03,126 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-12-01 15:10:03,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:10:03,236 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-12-01 15:10:03,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:10:03,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-12-01 15:10:03,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:10:03,238 INFO L225 Difference]: With dead ends: 43 [2020-12-01 15:10:03,238 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:10:03,239 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-12-01 15:10:03,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:10:03,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:10:03,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:10:03,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-12-01 15:10:03,244 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-12-01 15:10:03,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:10:03,244 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-12-01 15:10:03,244 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-01 15:10:03,245 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-12-01 15:10:03,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-01 15:10:03,245 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:10:03,245 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:10:03,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 15:10:03,468 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:10:03,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:10:03,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2020-12-01 15:10:03,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:10:03,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1189086734] [2020-12-01 15:10:03,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 15:10:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:10:03,588 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-01 15:10:03,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:10:03,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:03,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:10:03,739 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:03,739 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1189086734] [2020-12-01 15:10:03,739 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:10:03,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-12-01 15:10:03,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024810878] [2020-12-01 15:10:03,740 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 15:10:03,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:10:03,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 15:10:03,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-01 15:10:03,741 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-12-01 15:10:03,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:10:03,842 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-12-01 15:10:03,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-01 15:10:03,843 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-12-01 15:10:03,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:10:03,844 INFO L225 Difference]: With dead ends: 19 [2020-12-01 15:10:03,844 INFO L226 Difference]: Without dead ends: 16 [2020-12-01 15:10:03,845 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-01 15:10:03,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-12-01 15:10:03,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-12-01 15:10:03,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-12-01 15:10:03,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-12-01 15:10:03,849 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-12-01 15:10:03,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:10:03,849 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-12-01 15:10:03,850 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 15:10:03,850 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-12-01 15:10:03,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-12-01 15:10:03,850 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 15:10:03,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 15:10:04,064 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 15:10:04,067 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 15:10:04,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 15:10:04,068 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2020-12-01 15:10:04,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 15:10:04,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [281290044] [2020-12-01 15:10:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-01 15:10:04,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 15:10:04,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-01 15:10:04,213 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 15:10:04,332 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-01 15:10:04,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:04,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 15:10:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 15:10:04,772 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [281290044] [2020-12-01 15:10:04,772 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 15:10:04,772 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-12-01 15:10:04,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984476580] [2020-12-01 15:10:04,773 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-12-01 15:10:04,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 15:10:04,774 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-12-01 15:10:04,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-12-01 15:10:04,775 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2020-12-01 15:10:05,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 15:10:05,120 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-12-01 15:10:05,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-01 15:10:05,121 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-12-01 15:10:05,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 15:10:05,121 INFO L225 Difference]: With dead ends: 16 [2020-12-01 15:10:05,121 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 15:10:05,122 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-12-01 15:10:05,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 15:10:05,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 15:10:05,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 15:10:05,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 15:10:05,123 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-12-01 15:10:05,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 15:10:05,123 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 15:10:05,123 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-12-01 15:10:05,123 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 15:10:05,123 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 15:10:05,323 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-01 15:10:05,325 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 15:10:05,528 INFO L258 CegarLoopResult]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2020-12-01 15:10:05,528 INFO L262 CegarLoopResult]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2020-12-01 15:10:05,528 INFO L262 CegarLoopResult]: For program point L44(lines 44 45) no Hoare annotation was computed. [2020-12-01 15:10:05,528 INFO L262 CegarLoopResult]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2020-12-01 15:10:05,528 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 15:10:05,528 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 15:10:05,528 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 15:10:05,529 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 15:10:05,529 INFO L262 CegarLoopResult]: For program point L28(lines 28 29) no Hoare annotation was computed. [2020-12-01 15:10:05,529 INFO L262 CegarLoopResult]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2020-12-01 15:10:05,529 INFO L258 CegarLoopResult]: At program point L86-2(lines 86 90) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short16| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-12-01 15:10:05,529 INFO L262 CegarLoopResult]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2020-12-01 15:10:05,529 INFO L262 CegarLoopResult]: For program point L37(lines 37 41) no Hoare annotation was computed. [2020-12-01 15:10:05,529 INFO L262 CegarLoopResult]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2020-12-01 15:10:05,529 INFO L262 CegarLoopResult]: For program point L54(lines 54 58) no Hoare annotation was computed. [2020-12-01 15:10:05,530 INFO L262 CegarLoopResult]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:10:05,530 INFO L262 CegarLoopResult]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2020-12-01 15:10:05,530 INFO L258 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2020-12-01 15:10:05,530 INFO L262 CegarLoopResult]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2020-12-01 15:10:05,530 INFO L265 CegarLoopResult]: At program point L112(lines 95 113) the Hoare annotation is: true [2020-12-01 15:10:05,530 INFO L262 CegarLoopResult]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2020-12-01 15:10:05,530 INFO L258 CegarLoopResult]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2020-12-01 15:10:05,530 INFO L262 CegarLoopResult]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2020-12-01 15:10:05,531 INFO L262 CegarLoopResult]: For program point L63(lines 63 72) no Hoare annotation was computed. [2020-12-01 15:10:05,531 INFO L258 CegarLoopResult]: At program point L80(lines 16 81) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-12-01 15:10:05,531 INFO L262 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-12-01 15:10:05,531 INFO L262 CegarLoopResult]: For program point L65(lines 65 71) no Hoare annotation was computed. [2020-12-01 15:10:05,531 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 15:10:05,531 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 15:10:05,531 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-01 15:10:05,531 INFO L262 CegarLoopResult]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2020-12-01 15:10:05,532 INFO L262 CegarLoopResult]: For program point L33(lines 33 34) no Hoare annotation was computed. [2020-12-01 15:10:05,533 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 15:10:05,534 INFO L262 CegarLoopResult]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2020-12-01 15:10:05,535 INFO L258 CegarLoopResult]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2020-12-01 15:10:05,535 INFO L262 CegarLoopResult]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2020-12-01 15:10:05,535 INFO L262 CegarLoopResult]: For program point L67(lines 67 70) no Hoare annotation was computed. [2020-12-01 15:10:05,535 INFO L258 CegarLoopResult]: At program point L92(lines 83 93) the Hoare annotation is: (and (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24)))) |ULTIMATE.start_main_#t~short16| (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= (_ +zero 8 24) (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))) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)) (_ +zero 8 24))) [2020-12-01 15:10:05,546 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,547 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,548 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,557 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,558 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,558 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,559 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,559 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,560 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,560 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,563 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,564 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,568 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,569 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,579 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,583 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 03:10:05 BoogieIcfgContainer [2020-12-01 15:10:05,588 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 15:10:05,588 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 15:10:05,589 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 15:10:05,589 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 15:10:05,590 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 03:10:01" (3/4) ... [2020-12-01 15:10:05,592 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 15:10:05,605 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2020-12-01 15:10:05,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 15:10:05,606 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:10:05,607 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 15:10:05,633 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-12-01 15:10:05,634 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-12-01 15:10:05,636 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() [2020-12-01 15:10:05,683 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_3a298729-cf95-41ba-92b7-185639791c77/bin/uautomizer/witness.graphml [2020-12-01 15:10:05,683 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 15:10:05,685 INFO L168 Benchmark]: Toolchain (without parser) took 6619.21 ms. Allocated memory was 54.5 MB in the beginning and 81.8 MB in the end (delta: 27.3 MB). Free memory was 32.1 MB in the beginning and 49.2 MB in the end (delta: -17.1 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2020-12-01 15:10:05,686 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.1 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:10:05,686 INFO L168 Benchmark]: CACSL2BoogieTranslator took 377.02 ms. Allocated memory is still 54.5 MB. Free memory was 32.0 MB in the beginning and 36.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. [2020-12-01 15:10:05,687 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.61 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 34.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 15:10:05,687 INFO L168 Benchmark]: Boogie Preprocessor took 39.73 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 32.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:10:05,688 INFO L168 Benchmark]: RCFGBuilder took 2281.35 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.9 MB in the beginning and 34.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-12-01 15:10:05,690 INFO L168 Benchmark]: TraceAbstraction took 3775.96 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.4 MB in the beginning and 52.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:10:05,691 INFO L168 Benchmark]: Witness Printer took 94.78 ms. Allocated memory is still 81.8 MB. Free memory was 52.8 MB in the beginning and 49.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 15:10:05,693 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 54.5 MB. Free memory was 36.2 MB in the beginning and 36.1 MB in the end (delta: 38.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 377.02 ms. Allocated memory is still 54.5 MB. Free memory was 32.0 MB in the beginning and 36.5 MB in the end (delta: -4.6 MB). Peak memory consumption was 7.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.61 ms. Allocated memory is still 54.5 MB. Free memory was 36.5 MB in the beginning and 34.7 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.73 ms. Allocated memory is still 54.5 MB. Free memory was 34.7 MB in the beginning and 32.9 MB in the end (delta: 1.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2281.35 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.9 MB in the beginning and 34.7 MB in the end (delta: -1.8 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3775.96 ms. Allocated memory was 67.1 MB in the beginning and 81.8 MB in the end (delta: 14.7 MB). Free memory was 34.4 MB in the beginning and 52.8 MB in the end (delta: -18.4 MB). Peak memory consumption was 14.1 MB. Max. memory is 16.1 GB. * Witness Printer took 94.78 ms. Allocated memory is still 81.8 MB. Free memory was 52.8 MB in the beginning and 49.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant [2020-12-01 15:10:05,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,704 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,705 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,706 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~Pluszero~LONGDOUBLE()) && x == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 83]: Loop Invariant [2020-12-01 15:10:05,708 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,709 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,710 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,712 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,720 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,721 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == 0bv32) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant [2020-12-01 15:10:05,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,725 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,726 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-12-01 15:10:05,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((((((\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) && ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) == ~Pluszero~LONGDOUBLE()) && aux-res == 0.0f && __signbit_float(res) == 0-aux) && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && x == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == x) && ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) == ~Pluszero~LONGDOUBLE() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 101 SDslu, 56 SDs, 0 SdLazy, 51 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 129 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4061 SizeOfPredicates, 22 NumberOfNonLiveVariables, 192 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...