./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/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 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d ............................................................................................................................................................................................................................................................................................................................. 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_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c -s /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/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 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:58:27,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:58:27,214 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:58:27,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:58:27,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:58:27,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:58:27,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:58:27,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:58:27,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:58:27,301 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:58:27,303 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:58:27,304 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:58:27,307 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:58:27,310 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:58:27,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:58:27,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:58:27,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:58:27,323 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:58:27,327 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:58:27,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:58:27,338 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:58:27,340 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:58:27,343 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:58:27,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:58:27,348 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:58:27,348 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:58:27,349 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:58:27,350 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:58:27,351 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:58:27,352 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:58:27,352 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:58:27,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:58:27,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:58:27,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:58:27,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:58:27,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:58:27,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:58:27,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:58:27,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:58:27,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:58:27,361 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:58:27,362 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-30 00:58:27,403 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:58:27,403 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:58:27,405 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:58:27,405 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:58:27,405 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:58:27,406 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:58:27,406 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:58:27,406 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:58:27,406 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:58:27,407 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:58:27,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:58:27,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:58:27,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:58:27,408 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:58:27,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:58:27,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:58:27,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:58:27,409 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:58:27,409 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:58:27,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:58:27,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:58:27,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:27,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:58:27,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:58:27,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:58:27,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:58:27,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 00:58:27,419 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:58:27,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:58:27,419 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_cf184551-fed7-48bc-991a-61de8c65a53f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d [2020-11-30 00:58:27,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:58:27,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:58:27,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:58:27,754 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:58:27,756 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:58:27,758 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-11-30 00:58:27,850 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/1446e24b6/d6b0f2e686044d1bab0bfeb5a9a93565/FLAG62ed3f5f5 [2020-11-30 00:58:28,422 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:58:28,423 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-11-30 00:58:28,432 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/1446e24b6/d6b0f2e686044d1bab0bfeb5a9a93565/FLAG62ed3f5f5 [2020-11-30 00:58:28,728 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/1446e24b6/d6b0f2e686044d1bab0bfeb5a9a93565 [2020-11-30 00:58:28,732 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:58:28,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:58:28,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:28,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:58:28,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:58:28,748 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:28" (1/1) ... [2020-11-30 00:58:28,756 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4299621d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:28, skipping insertion in model container [2020-11-30 00:58:28,757 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:28" (1/1) ... [2020-11-30 00:58:28,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:58:28,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:29,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:29,065 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:58:29,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:29,172 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:58:29,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29 WrapperNode [2020-11-30 00:58:29,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:29,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:29,175 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:58:29,175 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:58:29,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,216 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:29,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:58:29,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:58:29,257 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:58:29,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,295 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,299 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... [2020-11-30 00:58:29,304 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:58:29,305 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:58:29,305 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:58:29,306 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:58:29,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:58:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:58:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-30 00:58:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-30 00:58:29,394 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-30 00:58:29,395 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:58:29,395 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:58:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-30 00:58:29,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:58:30,138 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:58:30,139 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-11-30 00:58:30,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:30 BoogieIcfgContainer [2020-11-30 00:58:30,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:58:30,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:58:30,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:58:30,147 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:58:30,147 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:58:28" (1/3) ... [2020-11-30 00:58:30,148 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c754059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:58:30, skipping insertion in model container [2020-11-30 00:58:30,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:29" (2/3) ... [2020-11-30 00:58:30,149 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c754059 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:58:30, skipping insertion in model container [2020-11-30 00:58:30,149 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:30" (3/3) ... [2020-11-30 00:58:30,151 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2020-11-30 00:58:30,163 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:58:30,169 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:58:30,182 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:58:30,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:58:30,211 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:58:30,211 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:58:30,211 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:58:30,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:58:30,211 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:58:30,211 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:58:30,212 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:58:30,227 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-11-30 00:58:30,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:58:30,242 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:30,244 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:30,244 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:30,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:30,251 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-11-30 00:58:30,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:30,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843127536] [2020-11-30 00:58:30,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:30,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:58:30,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:58:30,415 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843127536] [2020-11-30 00:58:30,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:58:30,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 00:58:30,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160136953] [2020-11-30 00:58:30,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:58:30,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:58:30,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:58:30,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:58:30,439 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-11-30 00:58:30,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:58:30,462 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2020-11-30 00:58:30,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:58:30,464 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 00:58:30,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:58:30,474 INFO L225 Difference]: With dead ends: 89 [2020-11-30 00:58:30,474 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 00:58:30,477 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:58:30,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 00:58:30,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-30 00:58:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 00:58:30,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-11-30 00:58:30,517 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-11-30 00:58:30,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:58:30,517 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-11-30 00:58:30,517 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:58:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-11-30 00:58:30,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:58:30,518 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:58:30,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:58:30,519 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 00:58:30,519 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:58:30,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:58:30,520 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-11-30 00:58:30,520 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:58:30,521 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757244180] [2020-11-30 00:58:30,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:58:30,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:30,670 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:58:30,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:58:30,823 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:58:30,823 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:58:30,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 00:58:30,914 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:58:30 BoogieIcfgContainer [2020-11-30 00:58:30,914 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:58:30,915 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:58:30,916 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:58:30,917 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:58:30,918 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:58:30" (3/4) ... [2020-11-30 00:58:30,921 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-30 00:58:30,921 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:58:30,925 INFO L168 Benchmark]: Toolchain (without parser) took 2187.19 ms. Allocated memory is still 83.9 MB. Free memory was 60.3 MB in the beginning and 34.4 MB in the end (delta: 25.9 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:30,926 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 69.2 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:58:30,927 INFO L168 Benchmark]: CACSL2BoogieTranslator took 432.84 ms. Allocated memory is still 83.9 MB. Free memory was 60.0 MB in the beginning and 53.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:30,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.72 ms. Allocated memory is still 83.9 MB. Free memory was 53.6 MB in the beginning and 51.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:30,929 INFO L168 Benchmark]: Boogie Preprocessor took 47.43 ms. Allocated memory is still 83.9 MB. Free memory was 51.1 MB in the beginning and 49.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:30,930 INFO L168 Benchmark]: RCFGBuilder took 835.69 ms. Allocated memory is still 83.9 MB. Free memory was 49.0 MB in the beginning and 39.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:30,932 INFO L168 Benchmark]: TraceAbstraction took 771.73 ms. Allocated memory is still 83.9 MB. Free memory was 39.0 MB in the beginning and 34.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. [2020-11-30 00:58:30,932 INFO L168 Benchmark]: Witness Printer took 6.00 ms. Allocated memory is still 83.9 MB. Free memory is still 34.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:58:30,944 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 69.2 MB. Free memory is still 44.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 432.84 ms. Allocated memory is still 83.9 MB. Free memory was 60.0 MB in the beginning and 53.6 MB in the end (delta: 6.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.72 ms. Allocated memory is still 83.9 MB. Free memory was 53.6 MB in the beginning and 51.1 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.43 ms. Allocated memory is still 83.9 MB. Free memory was 51.1 MB in the beginning and 49.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 835.69 ms. Allocated memory is still 83.9 MB. Free memory was 49.0 MB in the beginning and 39.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 12.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 771.73 ms. Allocated memory is still 83.9 MB. Free memory was 39.0 MB in the beginning and 34.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 5.3 MB. Max. memory is 16.1 GB. * Witness Printer took 6.00 ms. Allocated memory is still 83.9 MB. Free memory is still 34.4 MB. 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 bitwiseOr at line 170, overapproximation of someBinaryArithmeticDOUBLEoperation at line 133, overapproximation of bitwiseAnd at line 169. Possible FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L183] double x = 1.0 / 0.0; [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L131] COND TRUE hx < 0x00100000 VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L132] COND TRUE ((hx & 0x7fffffff) | lx) == 0 [L133] return -two54_log10 / zero_log10; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L184] double res = __ieee754_log10(x); [L162] __int32_t hx, lx; VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L164] ieee_double_shape_type ew_u; [L165] ew_u.value = (x) [L166] EXPR ew_u.parts.msw [L166] (hx) = ew_u.parts.msw [L167] EXPR ew_u.parts.lsw [L167] (lx) = ew_u.parts.lsw [L169] hx &= 0x7fffffff [L170] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L171] hx = 0x7ff00000 - hx [L172] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] [L187] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0981.c", 3, "reach_error") VAL [ivln10_log10=108573620475812954167/250000000000000000000, Lg1_log=666666666666673513/1000000000000000000, Lg2_log=999999999985235477/2500000000000000000, Lg3_log=2857142874366239149/10000000000000000000, Lg4_log=555554960803744599/2500000000000000000, Lg5_log=454589304040451253/2500000000000000000, Lg6_log=382845942480234333/2500000000000000000, Lg7_log=1479819860511658591/10000000000000000000, ln2_hi_log=69314718036912381649/100000000000000000000, ln2_lo_log=95410746463529385001/500000000000000000000000000000, log10_2hi_log10=150514997831805885653/500000000000000000000, log10_2lo_log10=46177988464486634827/125000000000000000000000000000000, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0, zero_log10=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 59 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=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-30 00:58:33,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:58:33,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:58:33,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:58:33,664 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:58:33,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:58:33,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:58:33,676 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:58:33,679 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:58:33,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:58:33,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:58:33,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:58:33,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:58:33,691 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:58:33,692 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:58:33,694 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:58:33,695 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:58:33,696 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:58:33,698 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:58:33,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:58:33,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:58:33,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:58:33,714 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:58:33,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:58:33,722 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:58:33,727 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:58:33,728 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:58:33,729 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:58:33,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:58:33,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:58:33,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:58:33,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:58:33,735 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:58:33,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:58:33,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:58:33,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:58:33,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:58:33,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:58:33,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:58:33,742 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:58:33,743 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:58:33,744 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-30 00:58:33,788 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:58:33,789 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:58:33,792 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:58:33,792 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:58:33,792 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:58:33,793 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:58:33,793 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:58:33,793 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:58:33,793 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:58:33,794 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 00:58:33,795 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 00:58:33,795 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 00:58:33,795 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-30 00:58:33,795 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-30 00:58:33,796 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:58:33,796 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:58:33,796 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:58:33,796 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 00:58:33,797 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:58:33,797 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:58:33,797 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 00:58:33,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 00:58:33,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:33,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:58:33,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 00:58:33,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 00:58:33,814 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-30 00:58:33,814 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-30 00:58:33,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 00:58:33,814 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:58:33,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 00:58:33,815 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_cf184551-fed7-48bc-991a-61de8c65a53f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 66a7c6e3a9deb166a40d6b5205de6d7261b36e2d [2020-11-30 00:58:34,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:58:34,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:58:34,216 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:58:34,217 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:58:34,219 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:58:34,220 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-11-30 00:58:34,305 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/138169b1f/34c53aa7e9cc4adb9cd3a5d4821423cc/FLAG3e21dbe70 [2020-11-30 00:58:34,949 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:58:34,950 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/sv-benchmarks/c/float-newlib/double_req_bl_0981.c [2020-11-30 00:58:34,963 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/138169b1f/34c53aa7e9cc4adb9cd3a5d4821423cc/FLAG3e21dbe70 [2020-11-30 00:58:35,234 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/data/138169b1f/34c53aa7e9cc4adb9cd3a5d4821423cc [2020-11-30 00:58:35,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:58:35,238 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:58:35,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:35,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:58:35,244 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:58:35,245 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@130548e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35, skipping insertion in model container [2020-11-30 00:58:35,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:58:35,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:58:35,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:35,560 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:58:35,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:58:35,761 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:58:35,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35 WrapperNode [2020-11-30 00:58:35,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:58:35,764 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:35,764 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:58:35,766 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:58:35,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,802 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,858 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:58:35,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:58:35,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:58:35,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:58:35,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,903 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,909 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... [2020-11-30 00:58:35,918 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:58:35,920 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:58:35,920 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:58:35,920 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:58:35,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 00:58:35,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-30 00:58:35,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-30 00:58:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-30 00:58:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:58:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-30 00:58:36,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:58:36,000 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:58:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-30 00:58:36,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-30 00:59:08,382 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:59:08,385 INFO L298 CfgBuilder]: Removed 26 assume(true) statements. [2020-11-30 00:59:08,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:59:08 BoogieIcfgContainer [2020-11-30 00:59:08,388 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:59:08,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 00:59:08,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 00:59:08,394 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 00:59:08,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 12:58:35" (1/3) ... [2020-11-30 00:59:08,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c4dbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:59:08, skipping insertion in model container [2020-11-30 00:59:08,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:58:35" (2/3) ... [2020-11-30 00:59:08,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52c4dbb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 12:59:08, skipping insertion in model container [2020-11-30 00:59:08,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:59:08" (3/3) ... [2020-11-30 00:59:08,398 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0981.c [2020-11-30 00:59:08,421 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 00:59:08,427 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 00:59:08,442 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 00:59:08,473 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 00:59:08,474 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 00:59:08,474 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 00:59:08,474 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:59:08,474 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:59:08,475 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 00:59:08,475 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:59:08,475 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 00:59:08,491 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-11-30 00:59:08,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-30 00:59:08,496 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:59:08,497 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:59:08,497 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:59:08,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:59:08,503 INFO L82 PathProgramCache]: Analyzing trace with hash -306140874, now seen corresponding path program 1 times [2020-11-30 00:59:08,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:59:08,516 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [639540383] [2020-11-30 00:59:08,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-30 00:59:09,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:59:09,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-30 00:59:09,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:59:09,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:09,741 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:59:09,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:09,747 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [639540383] [2020-11-30 00:59:09,748 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:59:09,748 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-30 00:59:09,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408062821] [2020-11-30 00:59:09,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-30 00:59:09,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:59:09,769 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-30 00:59:09,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:59:09,772 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 2 states. [2020-11-30 00:59:09,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:59:09,798 INFO L93 Difference]: Finished difference Result 89 states and 147 transitions. [2020-11-30 00:59:09,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-30 00:59:09,800 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 12 [2020-11-30 00:59:09,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:59:09,811 INFO L225 Difference]: With dead ends: 89 [2020-11-30 00:59:09,811 INFO L226 Difference]: Without dead ends: 42 [2020-11-30 00:59:09,815 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-30 00:59:09,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-11-30 00:59:09,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-11-30 00:59:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-11-30 00:59:09,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 56 transitions. [2020-11-30 00:59:09,857 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 56 transitions. Word has length 12 [2020-11-30 00:59:09,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:59:09,858 INFO L481 AbstractCegarLoop]: Abstraction has 42 states and 56 transitions. [2020-11-30 00:59:09,858 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-30 00:59:09,858 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 56 transitions. [2020-11-30 00:59:09,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:59:09,860 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:59:09,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:59:10,073 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-30 00:59:10,074 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:59:10,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:59:10,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1933005595, now seen corresponding path program 1 times [2020-11-30 00:59:10,076 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:59:10,076 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1721940] [2020-11-30 00:59:10,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-30 00:59:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:59:11,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-30 00:59:11,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 00:59:11,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:11,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 00:59:11,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:59:11,564 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1721940] [2020-11-30 00:59:11,564 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:59:11,565 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-30 00:59:11,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048011978] [2020-11-30 00:59:11,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 00:59:11,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-30 00:59:11,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 00:59:11,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 00:59:11,568 INFO L87 Difference]: Start difference. First operand 42 states and 56 transitions. Second operand 6 states. [2020-11-30 00:59:11,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:59:11,745 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2020-11-30 00:59:11,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 00:59:11,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-30 00:59:11,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 00:59:11,753 INFO L225 Difference]: With dead ends: 51 [2020-11-30 00:59:11,754 INFO L226 Difference]: Without dead ends: 15 [2020-11-30 00:59:11,755 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-30 00:59:11,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-11-30 00:59:11,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-11-30 00:59:11,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-11-30 00:59:11,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 14 transitions. [2020-11-30 00:59:11,759 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 14 transitions. Word has length 14 [2020-11-30 00:59:11,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 00:59:11,759 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 14 transitions. [2020-11-30 00:59:11,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 00:59:11,759 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 14 transitions. [2020-11-30 00:59:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-30 00:59:11,760 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 00:59:11,760 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:59:11,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-30 00:59:11,968 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 00:59:11,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:59:11,969 INFO L82 PathProgramCache]: Analyzing trace with hash 2124356858, now seen corresponding path program 1 times [2020-11-30 00:59:11,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-30 00:59:11,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1166138418] [2020-11-30 00:59:11,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-30 00:59:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:59:12,326 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:59:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:59:12,567 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:59:12,651 INFO L173 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2020-11-30 00:59:12,651 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 00:59:12,851 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-30 00:59:12,925 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 12:59:12 BoogieIcfgContainer [2020-11-30 00:59:12,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 00:59:12,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:59:12,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:59:12,927 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:59:12,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:59:08" (3/4) ... [2020-11-30 00:59:12,929 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 00:59:13,061 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_cf184551-fed7-48bc-991a-61de8c65a53f/bin/uautomizer/witness.graphml [2020-11-30 00:59:13,064 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:59:13,066 INFO L168 Benchmark]: Toolchain (without parser) took 37827.17 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 45.1 MB in the beginning and 58.8 MB in the end (delta: -13.8 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:13,067 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory is still 46.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:59:13,068 INFO L168 Benchmark]: CACSL2BoogieTranslator took 523.14 ms. Allocated memory is still 65.0 MB. Free memory was 44.9 MB in the beginning and 45.9 MB in the end (delta: -965.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:13,073 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.60 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 43.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:13,073 INFO L168 Benchmark]: Boogie Preprocessor took 59.79 ms. Allocated memory is still 65.0 MB. Free memory was 43.3 MB in the beginning and 40.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:13,074 INFO L168 Benchmark]: RCFGBuilder took 32468.40 ms. Allocated memory is still 65.0 MB. Free memory was 40.9 MB in the beginning and 28.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:13,074 INFO L168 Benchmark]: TraceAbstraction took 4535.76 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 28.5 MB in the beginning and 63.0 MB in the end (delta: -34.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:13,075 INFO L168 Benchmark]: Witness Printer took 138.01 ms. Allocated memory is still 90.2 MB. Free memory was 63.0 MB in the beginning and 58.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:59:13,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 65.0 MB. Free memory is still 46.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 523.14 ms. Allocated memory is still 65.0 MB. Free memory was 44.9 MB in the beginning and 45.9 MB in the end (delta: -965.5 kB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 94.60 ms. Allocated memory is still 65.0 MB. Free memory was 45.9 MB in the beginning and 43.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.79 ms. Allocated memory is still 65.0 MB. Free memory was 43.3 MB in the beginning and 40.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 32468.40 ms. Allocated memory is still 65.0 MB. Free memory was 40.9 MB in the beginning and 28.7 MB in the end (delta: 12.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4535.76 ms. Allocated memory was 65.0 MB in the beginning and 90.2 MB in the end (delta: 25.2 MB). Free memory was 28.5 MB in the beginning and 63.0 MB in the end (delta: -34.6 MB). Peak memory consumption was 20.7 MB. Max. memory is 16.1 GB. * Witness Printer took 138.01 ms. Allocated memory is still 90.2 MB. Free memory was 63.0 MB in the beginning and 58.8 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L17-L26] static const double ln2_hi_log = 6.93147180369123816490e-01, ln2_lo_log = 1.90821492927058770002e-10, two54_log = 1.80143985094819840000e+16, Lg1_log = 6.666666666666735130e-01, Lg2_log = 3.999999999940941908e-01, Lg3_log = 2.857142874366239149e-01, Lg4_log = 2.222219843214978396e-01, Lg5_log = 1.818357216161805012e-01, Lg6_log = 1.531383769920937332e-01, Lg7_log = 1.479819860511658591e-01; [L28] static const double zero = 0.0; [L111-L114] static const double two54_log10 = 1.80143985094819840000e+16, ivln10_log10 = 4.34294481903251816668e-01, log10_2hi_log10 = 3.01029995663611771306e-01, log10_2lo_log10 = 3.69423907715893078616e-13; [L116] static const double zero_log10 = 0.0; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L183] double x = 1.0 / 0.0; [L119] double y, z; [L120] __int32_t i, k, hx; [L121] __uint32_t lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L124] ieee_double_shape_type ew_u; [L125] ew_u.value = (x) [L126] EXPR ew_u.parts.msw [L126] (hx) = ew_u.parts.msw [L127] EXPR ew_u.parts.lsw [L127] (lx) = ew_u.parts.lsw [L130] k = 0 VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L131] COND FALSE !(hx < 0x00100000) VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L144] COND TRUE hx >= 0x7ff00000 [L145] return x + x; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L184] double res = __ieee754_log10(x); [L162] __int32_t hx, lx; VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L164] ieee_double_shape_type ew_u; [L165] ew_u.value = (x) [L166] EXPR ew_u.parts.msw [L166] (hx) = ew_u.parts.msw [L167] EXPR ew_u.parts.lsw [L167] (lx) = ew_u.parts.lsw [L169] hx &= 0x7fffffff [L170] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L171] hx = 0x7ff00000 - hx [L172] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] [L187] COND TRUE !isinf_double(res) [L3] __assert_fail("0", "double_req_bl_0981.c", 3, "reach_error") VAL [ivln10_log10=0.4342944819032518, Lg1_log=0.6666666666666735, Lg2_log=0.3999999999940942, Lg3_log=0.2857142874366239, Lg4_log=0.22222198432149784, Lg5_log=0.1818357216161805, Lg6_log=0.15313837699209373, Lg7_log=0.14798198605116586, ln2_hi_log=0.6931471803691238, ln2_lo_log=0.00000000019082149292705877, log10_2hi_log10=0.30102999566361177, log10_2lo_log10=0.0000000000003694239077158931, two54_log=18014398509481984, two54_log10=18014398509481984, zero=0.0, zero_log10=0.0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 4.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 70 SDtfs, 21 SDslu, 4 SDs, 0 SdLazy, 5 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 5 QuantifiedInterpolants, 1750 SizeOfPredicates, 7 NumberOfNonLiveVariables, 136 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 incorrect! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...