./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0270b.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_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0270b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/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 8d5140f0f8e0289a8d0935e2d97f17b516e2a4b7 ........................................................................................................................................................................................................................................................................................................................ 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_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0270b.c -s /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/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 8d5140f0f8e0289a8d0935e2d97f17b516e2a4b7 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:01:38,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:01:38,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:01:38,220 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:01:38,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:01:38,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:01:38,225 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:01:38,228 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:01:38,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:01:38,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:01:38,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:01:38,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:01:38,237 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:01:38,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:01:38,247 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:01:38,249 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:01:38,250 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:01:38,251 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:01:38,254 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:01:38,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:01:38,259 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:01:38,265 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:01:38,269 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:01:38,271 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:01:38,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:01:38,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:01:38,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:01:38,288 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:01:38,289 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:01:38,296 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:01:38,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:01:38,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:01:38,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:01:38,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:01:38,302 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:01:38,303 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:01:38,304 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:01:38,304 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:01:38,304 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:01:38,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:01:38,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:01:38,308 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 20:01:38,354 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:01:38,354 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:01:38,356 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:01:38,356 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:01:38,357 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:01:38,357 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:01:38,357 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:01:38,357 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 20:01:38,358 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:01:38,358 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:01:38,359 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:01:38,359 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:01:38,359 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:01:38,360 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:01:38,360 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:01:38,360 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:01:38,360 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:01:38,360 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:01:38,361 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:01:38,361 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:01:38,361 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:01:38,361 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:01:38,362 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:01:38,362 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:01:38,362 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:01:38,362 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 20:01:38,362 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 20:01:38,363 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:01:38,363 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:01:38,363 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_ac536194-5ad8-4461-ac33-12b8d4fb181c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d5140f0f8e0289a8d0935e2d97f17b516e2a4b7 [2020-11-29 20:01:38,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:01:38,723 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:01:38,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:01:38,730 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:01:38,731 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:01:38,733 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0270b.c [2020-11-29 20:01:38,818 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/b58208c48/7de4e4c97c36413f9a793db54e80c485/FLAG704ce5f6f [2020-11-29 20:01:39,506 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:01:39,508 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/sv-benchmarks/c/float-newlib/double_req_bl_0270b.c [2020-11-29 20:01:39,517 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/b58208c48/7de4e4c97c36413f9a793db54e80c485/FLAG704ce5f6f [2020-11-29 20:01:39,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/b58208c48/7de4e4c97c36413f9a793db54e80c485 [2020-11-29 20:01:39,872 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:01:39,873 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:01:39,876 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:01:39,877 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:01:39,880 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:01:39,881 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:01:39" (1/1) ... [2020-11-29 20:01:39,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de9a1cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:39, skipping insertion in model container [2020-11-29 20:01:39,885 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:01:39" (1/1) ... [2020-11-29 20:01:39,893 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:01:39,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:01:40,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:01:40,198 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:01:40,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:01:40,279 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:01:40,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40 WrapperNode [2020-11-29 20:01:40,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:01:40,282 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:01:40,282 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:01:40,282 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:01:40,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,361 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:01:40,362 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:01:40,362 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:01:40,362 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:01:40,371 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,410 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,415 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... [2020-11-29 20:01:40,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:01:40,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:01:40,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:01:40,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:01:40,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/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 [2020-11-29 20:01:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 20:01:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:01:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 20:01:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 20:01:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 20:01:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:01:40,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:01:40,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 20:01:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:01:41,483 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:01:41,484 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-11-29 20:01:41,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:01:41 BoogieIcfgContainer [2020-11-29 20:01:41,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:01:41,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:01:41,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:01:41,493 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:01:41,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:01:39" (1/3) ... [2020-11-29 20:01:41,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4585f8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:01:41, skipping insertion in model container [2020-11-29 20:01:41,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:40" (2/3) ... [2020-11-29 20:01:41,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4585f8a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:01:41, skipping insertion in model container [2020-11-29 20:01:41,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:01:41" (3/3) ... [2020-11-29 20:01:41,497 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0270b.c [2020-11-29 20:01:41,511 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:01:41,517 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:01:41,533 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:01:41,565 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:01:41,565 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:01:41,565 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:01:41,566 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:01:41,566 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:01:41,566 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:01:41,566 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:01:41,566 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:01:41,588 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-11-29 20:01:41,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:01:41,597 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:01:41,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:01:41,598 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:01:41,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:01:41,607 INFO L82 PathProgramCache]: Analyzing trace with hash 1035834224, now seen corresponding path program 1 times [2020-11-29 20:01:41,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:01:41,619 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720495741] [2020-11-29 20:01:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:01:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:01:41,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:01:41,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720495741] [2020-11-29 20:01:41,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:01:41,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 20:01:41,854 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471890604] [2020-11-29 20:01:41,858 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:01:41,859 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 20:01:41,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:01:41,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:01:41,882 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-11-29 20:01:41,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:01:41,923 INFO L93 Difference]: Finished difference Result 141 states and 231 transitions. [2020-11-29 20:01:41,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:01:41,924 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 20:01:41,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:01:41,945 INFO L225 Difference]: With dead ends: 141 [2020-11-29 20:01:41,947 INFO L226 Difference]: Without dead ends: 68 [2020-11-29 20:01:41,951 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 [2020-11-29 20:01:41,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-29 20:01:41,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-29 20:01:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 20:01:41,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-11-29 20:01:41,989 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 10 [2020-11-29 20:01:41,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:01:41,990 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-11-29 20:01:41,990 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:01:41,990 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-11-29 20:01:41,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:01:41,991 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:01:41,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:01:41,991 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 20:01:41,992 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:01:41,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:01:41,993 INFO L82 PathProgramCache]: Analyzing trace with hash -744853926, now seen corresponding path program 1 times [2020-11-29 20:01:41,993 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 20:01:41,993 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008954141] [2020-11-29 20:01:41,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 20:01:42,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:01:42,039 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:01:42,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 20:01:42,071 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 20:01:42,098 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 20:01:42,098 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 20:01:42,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 20:01:42,142 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:01:42 BoogieIcfgContainer [2020-11-29 20:01:42,142 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:01:42,143 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:01:42,143 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:01:42,148 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:01:42,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:01:41" (3/4) ... [2020-11-29 20:01:42,152 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 20:01:42,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:01:42,155 INFO L168 Benchmark]: Toolchain (without parser) took 2280.03 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 69.6 MB in the beginning and 82.5 MB in the end (delta: -12.8 MB). Peak memory consumption was 7.0 MB. Max. memory is 16.1 GB. [2020-11-29 20:01:42,157 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 49.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:01:42,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 404.47 ms. Allocated memory is still 98.6 MB. Free memory was 69.4 MB in the beginning and 69.9 MB in the end (delta: -506.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 20:01:42,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 79.36 ms. Allocated memory is still 98.6 MB. Free memory was 69.9 MB in the beginning and 67.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:01:42,161 INFO L168 Benchmark]: Boogie Preprocessor took 59.54 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 64.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:01:42,162 INFO L168 Benchmark]: RCFGBuilder took 1064.58 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 64.9 MB in the beginning and 75.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:01:42,163 INFO L168 Benchmark]: TraceAbstraction took 653.83 ms. Allocated memory is still 119.5 MB. Free memory was 74.5 MB in the beginning and 83.4 MB in the end (delta: -8.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:01:42,166 INFO L168 Benchmark]: Witness Printer took 9.71 ms. Allocated memory is still 119.5 MB. Free memory was 83.4 MB in the beginning and 82.5 MB in the end (delta: 945.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:01:42,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 98.6 MB. Free memory was 58.3 MB in the beginning and 58.3 MB in the end (delta: 49.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 404.47 ms. Allocated memory is still 98.6 MB. Free memory was 69.4 MB in the beginning and 69.9 MB in the end (delta: -506.3 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 79.36 ms. Allocated memory is still 98.6 MB. Free memory was 69.9 MB in the beginning and 67.3 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 59.54 ms. Allocated memory is still 98.6 MB. Free memory was 67.3 MB in the beginning and 64.9 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1064.58 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 64.9 MB in the beginning and 75.1 MB in the end (delta: -10.3 MB). Peak memory consumption was 21.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 653.83 ms. Allocated memory is still 119.5 MB. Free memory was 74.5 MB in the beginning and 83.4 MB in the end (delta: -8.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 9.71 ms. Allocated memory is still 119.5 MB. Free memory was 83.4 MB in the beginning and 82.5 MB in the end (delta: 945.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 237, overapproximation of bitwiseAnd at line 168, overapproximation of someBinaryArithmeticDOUBLEoperation at line 185, overapproximation of someBinaryDOUBLEComparisonOperation at line 241. Possible FailurePath: [L18] static const double one_sqrt = 1.0, tiny_sqrt = 1.0e-300; [L144-L158] static const double one_asin = 1.00000000000000000000e+00, huge_asin = 1.000e+300, pio2_hi_asin = 1.57079632679489655800e+00, pio2_lo_asin = 6.12323399573676603587e-17, pio4_hi_asin = 7.85398163397448278999e-01, pS0_asin = 1.66666666666666657415e-01, pS1_asin = -3.25565818622400915405e-01, pS2_asin = 2.01212532134862925881e-01, pS3_asin = -4.00555345006794114027e-02, pS4_asin = 7.91534994289814532176e-04, pS5_asin = 3.47933107596021167570e-05, qS1_asin = -2.40339491173441421878e+00, qS2_asin = 2.02094576023350569471e+00, qS3_asin = -6.88283971605453293030e-01, qS4_asin = 7.70381505559019352791e-02; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L237] double x = -0.0; [L161] double t, w, p, q, c, r, s; [L162] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L164] ieee_double_shape_type gh_u; [L165] gh_u.value = (x) [L166] EXPR gh_u.parts.msw [L166] (hx) = gh_u.parts.msw [L168] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L169] COND FALSE !(ix >= 0x3ff00000) VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L180] COND TRUE ix < 0x3fe00000 VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L181] COND FALSE !(ix < 0x3e400000) [L185] t = x * x [L186-L189] p = t * (pS0_asin + t * (pS1_asin + t * (pS2_asin + t * (pS3_asin + t * (pS4_asin + t * pS5_asin))))) [L190-L191] q = one_asin + t * (qS1_asin + t * (qS2_asin + t * (qS3_asin + t * qS4_asin))) [L192] w = p / q [L193] return x + x * w; VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L238] double res = __ieee754_asin(x); [L241] COND TRUE res != x VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L3] __assert_fail("0", "double_req_bl_0270b.c", 3, "reach_error") VAL [huge_asin=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=785398163397448279/500000000000000000, pio2_lo_asin=612323399573676603587/10000000000000000000000000000000000000, pio4_hi_asin=785398163397448278999/1000000000000000000000, pS0_asin=33333333333333331483/200000000000000000000, pS2_asin=201212532134862925881/1000000000000000000000, pS4_asin=49470937143113408261/62500000000000000000000, pS5_asin=34793310759602116757/1000000000000000000000000, qS2_asin=202094576023350569471/100000000000000000000, qS4_asin=770381505559019352791/10000000000000000000000, tiny_sqrt=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 97 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=72occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 20:01:45,217 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 20:01:45,222 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 20:01:45,271 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 20:01:45,272 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 20:01:45,274 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 20:01:45,276 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 20:01:45,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 20:01:45,283 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 20:01:45,284 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 20:01:45,286 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 20:01:45,288 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 20:01:45,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 20:01:45,299 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 20:01:45,301 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 20:01:45,303 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 20:01:45,304 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 20:01:45,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 20:01:45,309 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 20:01:45,312 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 20:01:45,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 20:01:45,327 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 20:01:45,331 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 20:01:45,334 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 20:01:45,344 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 20:01:45,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 20:01:45,345 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 20:01:45,346 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 20:01:45,347 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 20:01:45,349 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 20:01:45,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 20:01:45,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 20:01:45,352 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 20:01:45,353 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 20:01:45,355 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 20:01:45,355 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 20:01:45,356 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 20:01:45,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 20:01:45,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 20:01:45,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 20:01:45,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 20:01:45,363 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 20:01:45,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 20:01:45,431 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 20:01:45,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 20:01:45,434 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 20:01:45,434 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 20:01:45,434 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 20:01:45,435 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 20:01:45,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 20:01:45,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 20:01:45,436 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 20:01:45,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 20:01:45,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 20:01:45,436 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 20:01:45,437 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 20:01:45,437 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 20:01:45,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 20:01:45,438 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 20:01:45,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 20:01:45,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 20:01:45,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 20:01:45,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 20:01:45,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 20:01:45,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 20:01:45,440 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 20:01:45,440 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 20:01:45,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 20:01:45,441 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 20:01:45,441 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 20:01:45,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 20:01:45,442 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 20:01:45,442 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 20:01:45,443 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_ac536194-5ad8-4461-ac33-12b8d4fb181c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d5140f0f8e0289a8d0935e2d97f17b516e2a4b7 [2020-11-29 20:01:45,903 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 20:01:45,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 20:01:45,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 20:01:45,931 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 20:01:45,932 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 20:01:45,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_0270b.c [2020-11-29 20:01:46,015 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/f0432a683/bb62009b4b8e49128e918f4a67d5ba69/FLAG9c1329877 [2020-11-29 20:01:46,658 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 20:01:46,658 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/sv-benchmarks/c/float-newlib/double_req_bl_0270b.c [2020-11-29 20:01:46,669 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/f0432a683/bb62009b4b8e49128e918f4a67d5ba69/FLAG9c1329877 [2020-11-29 20:01:46,948 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/data/f0432a683/bb62009b4b8e49128e918f4a67d5ba69 [2020-11-29 20:01:46,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 20:01:46,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 20:01:46,958 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 20:01:46,958 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 20:01:46,964 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 20:01:46,966 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:01:46" (1/1) ... [2020-11-29 20:01:46,968 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@213b2938 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:46, skipping insertion in model container [2020-11-29 20:01:46,969 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 08:01:46" (1/1) ... [2020-11-29 20:01:46,978 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 20:01:47,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 20:01:47,288 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:01:47,322 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 20:01:47,502 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 20:01:47,529 INFO L208 MainTranslator]: Completed translation [2020-11-29 20:01:47,529 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47 WrapperNode [2020-11-29 20:01:47,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 20:01:47,531 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 20:01:47,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 20:01:47,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 20:01:47,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,606 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 20:01:47,607 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 20:01:47,607 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 20:01:47,607 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 20:01:47,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,645 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,654 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,659 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... [2020-11-29 20:01:47,666 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 20:01:47,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 20:01:47,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 20:01:47,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 20:01:47,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/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 [2020-11-29 20:01:47,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 20:01:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 20:01:47,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 20:01:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 20:01:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 20:01:47,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 20:01:47,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 20:01:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 20:01:47,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 20:02:09,043 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 20:02:09,044 INFO L298 CfgBuilder]: Removed 30 assume(true) statements. [2020-11-29 20:02:09,046 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:02:09 BoogieIcfgContainer [2020-11-29 20:02:09,046 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 20:02:09,052 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 20:02:09,052 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 20:02:09,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 20:02:09,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 08:01:46" (1/3) ... [2020-11-29 20:02:09,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e8e355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:02:09, skipping insertion in model container [2020-11-29 20:02:09,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 08:01:47" (2/3) ... [2020-11-29 20:02:09,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66e8e355 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 08:02:09, skipping insertion in model container [2020-11-29 20:02:09,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:02:09" (3/3) ... [2020-11-29 20:02:09,062 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0270b.c [2020-11-29 20:02:09,078 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 20:02:09,084 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 20:02:09,101 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 20:02:09,154 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 20:02:09,154 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 20:02:09,155 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 20:02:09,155 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 20:02:09,155 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 20:02:09,155 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 20:02:09,155 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 20:02:09,156 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 20:02:09,174 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states. [2020-11-29 20:02:09,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 20:02:09,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:09,183 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:02:09,183 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:02:09,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:09,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1035834224, now seen corresponding path program 1 times [2020-11-29 20:02:09,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:02:09,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1038821361] [2020-11-29 20:02:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/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 [2020-11-29 20:02:10,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:10,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 20:02:10,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:02:10,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:10,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:02:10,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:10,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1038821361] [2020-11-29 20:02:10,253 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:10,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 20:02:10,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904486995] [2020-11-29 20:02:10,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 20:02:10,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:02:10,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 20:02:10,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:02:10,275 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 2 states. [2020-11-29 20:02:10,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:10,298 INFO L93 Difference]: Finished difference Result 141 states and 231 transitions. [2020-11-29 20:02:10,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 20:02:10,300 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 20:02:10,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:10,310 INFO L225 Difference]: With dead ends: 141 [2020-11-29 20:02:10,310 INFO L226 Difference]: Without dead ends: 68 [2020-11-29 20:02:10,313 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 20:02:10,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-11-29 20:02:10,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-11-29 20:02:10,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-11-29 20:02:10,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 94 transitions. [2020-11-29 20:02:10,352 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 94 transitions. Word has length 10 [2020-11-29 20:02:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:10,353 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 94 transitions. [2020-11-29 20:02:10,353 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 20:02:10,353 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 94 transitions. [2020-11-29 20:02:10,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 20:02:10,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:10,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:02:10,579 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 20:02:10,579 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:02:10,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:10,581 INFO L82 PathProgramCache]: Analyzing trace with hash -744853926, now seen corresponding path program 1 times [2020-11-29 20:02:10,582 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:02:10,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1866750456] [2020-11-29 20:02:10,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/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 [2020-11-29 20:02:15,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:15,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 20:02:15,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:02:16,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:16,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:02:16,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:16,245 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1866750456] [2020-11-29 20:02:16,245 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:16,245 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 20:02:16,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660287236] [2020-11-29 20:02:16,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:02:16,248 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:02:16,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:02:16,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:02:16,249 INFO L87 Difference]: Start difference. First operand 68 states and 94 transitions. Second operand 8 states. [2020-11-29 20:02:18,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:18,211 INFO L93 Difference]: Finished difference Result 124 states and 171 transitions. [2020-11-29 20:02:18,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:02:18,213 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-11-29 20:02:18,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:18,215 INFO L225 Difference]: With dead ends: 124 [2020-11-29 20:02:18,218 INFO L226 Difference]: Without dead ends: 65 [2020-11-29 20:02:18,219 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:02:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-29 20:02:18,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-29 20:02:18,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-29 20:02:18,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 85 transitions. [2020-11-29 20:02:18,261 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 85 transitions. Word has length 11 [2020-11-29 20:02:18,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:18,262 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 85 transitions. [2020-11-29 20:02:18,263 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:02:18,263 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 85 transitions. [2020-11-29 20:02:18,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 20:02:18,265 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:18,265 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:02:18,489 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 20:02:18,490 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:02:18,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:18,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1629311917, now seen corresponding path program 1 times [2020-11-29 20:02:18,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:02:18,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [480660116] [2020-11-29 20:02:18,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/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 [2020-11-29 20:02:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:18,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-29 20:02:18,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:02:18,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:18,933 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:02:19,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:19,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [480660116] [2020-11-29 20:02:19,041 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:19,041 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 20:02:19,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121347229] [2020-11-29 20:02:19,042 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 20:02:19,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:02:19,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 20:02:19,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 20:02:19,043 INFO L87 Difference]: Start difference. First operand 65 states and 85 transitions. Second operand 8 states. [2020-11-29 20:02:19,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:19,459 INFO L93 Difference]: Finished difference Result 69 states and 88 transitions. [2020-11-29 20:02:19,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 20:02:19,461 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 12 [2020-11-29 20:02:19,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:19,463 INFO L225 Difference]: With dead ends: 69 [2020-11-29 20:02:19,463 INFO L226 Difference]: Without dead ends: 65 [2020-11-29 20:02:19,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 20:02:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-11-29 20:02:19,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-11-29 20:02:19,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-11-29 20:02:19,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2020-11-29 20:02:19,484 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 12 [2020-11-29 20:02:19,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:19,485 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2020-11-29 20:02:19,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 20:02:19,485 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2020-11-29 20:02:19,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-11-29 20:02:19,487 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 20:02:19,487 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 20:02:19,690 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 20:02:19,690 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 20:02:19,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 20:02:19,691 INFO L82 PathProgramCache]: Analyzing trace with hash -264969657, now seen corresponding path program 1 times [2020-11-29 20:02:19,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 20:02:19,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1948358126] [2020-11-29 20:02:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 20:02:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 20:02:28,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 20:02:28,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 20:02:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:28,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 20:02:29,885 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2020-11-29 20:02:30,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 20:02:30,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1948358126] [2020-11-29 20:02:30,263 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 20:02:30,263 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2020-11-29 20:02:30,263 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677382365] [2020-11-29 20:02:30,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 20:02:30,264 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 20:02:30,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 20:02:30,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:02:30,266 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand 6 states. [2020-11-29 20:02:30,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 20:02:30,629 INFO L93 Difference]: Finished difference Result 65 states and 84 transitions. [2020-11-29 20:02:30,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 20:02:30,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 28 [2020-11-29 20:02:30,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 20:02:30,636 INFO L225 Difference]: With dead ends: 65 [2020-11-29 20:02:30,636 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 20:02:30,637 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-29 20:02:30,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 20:02:30,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 20:02:30,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 20:02:30,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 20:02:30,638 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 28 [2020-11-29 20:02:30,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 20:02:30,638 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 20:02:30,638 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 20:02:30,638 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 20:02:30,638 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 20:02:30,839 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 20:02:30,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 20:02:31,079 INFO L274 CegarLoopResult]: For program point L85(lines 85 94) no Hoare annotation was computed. [2020-11-29 20:02:31,079 INFO L274 CegarLoopResult]: For program point L85-2(lines 85 94) no Hoare annotation was computed. [2020-11-29 20:02:31,079 INFO L274 CegarLoopResult]: For program point L135(lines 135 140) no Hoare annotation was computed. [2020-11-29 20:02:31,079 INFO L274 CegarLoopResult]: For program point L135-1(lines 128 142) no Hoare annotation was computed. [2020-11-29 20:02:31,080 INFO L274 CegarLoopResult]: For program point L135-2(lines 135 140) no Hoare annotation was computed. [2020-11-29 20:02:31,080 INFO L274 CegarLoopResult]: For program point L36(lines 36 41) no Hoare annotation was computed. [2020-11-29 20:02:31,080 INFO L270 CegarLoopResult]: At program point L69-2(lines 69 79) the Hoare annotation is: false [2020-11-29 20:02:31,080 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 20:02:31,080 INFO L274 CegarLoopResult]: For program point L36-2(lines 36 41) no Hoare annotation was computed. [2020-11-29 20:02:31,080 INFO L274 CegarLoopResult]: For program point L69-3(lines 69 79) no Hoare annotation was computed. [2020-11-29 20:02:31,080 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 20:02:31,081 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 20:02:31,081 INFO L274 CegarLoopResult]: For program point L119-1(lines 119 124) no Hoare annotation was computed. [2020-11-29 20:02:31,081 INFO L270 CegarLoopResult]: At program point L119-2(lines 119 124) the Hoare annotation is: false [2020-11-29 20:02:31,081 INFO L274 CegarLoopResult]: For program point L119-3(lines 119 124) no Hoare annotation was computed. [2020-11-29 20:02:31,081 INFO L274 CegarLoopResult]: For program point L169(lines 169 195) no Hoare annotation was computed. [2020-11-29 20:02:31,081 INFO L274 CegarLoopResult]: For program point L103(lines 103 111) no Hoare annotation was computed. [2020-11-29 20:02:31,081 INFO L274 CegarLoopResult]: For program point L37(lines 37 40) no Hoare annotation was computed. [2020-11-29 20:02:31,082 INFO L274 CegarLoopResult]: For program point L87(lines 87 88) no Hoare annotation was computed. [2020-11-29 20:02:31,082 INFO L274 CegarLoopResult]: For program point L87-2(lines 87 88) no Hoare annotation was computed. [2020-11-29 20:02:31,082 INFO L274 CegarLoopResult]: For program point L71(lines 71 75) no Hoare annotation was computed. [2020-11-29 20:02:31,082 INFO L274 CegarLoopResult]: For program point L71-2(lines 71 75) no Hoare annotation was computed. [2020-11-29 20:02:31,082 INFO L274 CegarLoopResult]: For program point L171-1(lines 171 175) no Hoare annotation was computed. [2020-11-29 20:02:31,082 INFO L270 CegarLoopResult]: At program point L171-2(lines 171 175) the Hoare annotation is: false [2020-11-29 20:02:31,082 INFO L274 CegarLoopResult]: For program point L171-3(lines 169 180) no Hoare annotation was computed. [2020-11-29 20:02:31,082 INFO L274 CegarLoopResult]: For program point L39(lines 39 40) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point L106(lines 106 111) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point L90(lines 90 91) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point L206(lines 206 222) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point L206-2(lines 160 227) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point L107(lines 107 108) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point L107-2(lines 107 108) no Hoare annotation was computed. [2020-11-29 20:02:31,083 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 20:02:31,084 INFO L274 CegarLoopResult]: For program point L58(lines 58 61) no Hoare annotation was computed. [2020-11-29 20:02:31,084 INFO L274 CegarLoopResult]: For program point L58-2(lines 58 61) no Hoare annotation was computed. [2020-11-29 20:02:31,084 INFO L270 CegarLoopResult]: At program point L141(lines 128 142) the Hoare annotation is: false [2020-11-29 20:02:31,084 INFO L270 CegarLoopResult]: At program point L125(lines 20 126) the Hoare annotation is: false [2020-11-29 20:02:31,084 INFO L274 CegarLoopResult]: For program point L26-1(lines 26 31) no Hoare annotation was computed. [2020-11-29 20:02:31,084 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 31) the Hoare annotation is: false [2020-11-29 20:02:31,084 INFO L274 CegarLoopResult]: For program point L26-3(lines 20 126) no Hoare annotation was computed. [2020-11-29 20:02:31,085 INFO L274 CegarLoopResult]: For program point L241(lines 241 244) no Hoare annotation was computed. [2020-11-29 20:02:31,085 INFO L274 CegarLoopResult]: For program point L44(lines 44 55) no Hoare annotation was computed. [2020-11-29 20:02:31,085 INFO L274 CegarLoopResult]: For program point L44-2(lines 44 55) no Hoare annotation was computed. [2020-11-29 20:02:31,087 INFO L270 CegarLoopResult]: At program point L226(lines 160 227) the Hoare annotation is: (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))) (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___ieee754_asin_~hx~0))) (= ULTIMATE.start_main_~x~0 (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_main_~x~0 ULTIMATE.start___ieee754_asin_~x) (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= (bvand (_ bv2147483647 32) ((_ extract 63 32) v_skolemized_v_prenex_1_3)) ULTIMATE.start___ieee754_asin_~ix~0) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))))) (= |ULTIMATE.start___ieee754_asin_#res| ULTIMATE.start_main_~x~0)) [2020-11-29 20:02:31,088 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 20:02:31,088 INFO L270 CegarLoopResult]: At program point L45-2(lines 45 49) the Hoare annotation is: false [2020-11-29 20:02:31,088 INFO L274 CegarLoopResult]: For program point L45-3(lines 45 49) no Hoare annotation was computed. [2020-11-29 20:02:31,088 INFO L274 CegarLoopResult]: For program point L211-1(lines 211 216) no Hoare annotation was computed. [2020-11-29 20:02:31,088 INFO L270 CegarLoopResult]: At program point L211-2(lines 211 216) the Hoare annotation is: false [2020-11-29 20:02:31,088 INFO L274 CegarLoopResult]: For program point L211-3(lines 211 216) no Hoare annotation was computed. [2020-11-29 20:02:31,088 INFO L274 CegarLoopResult]: For program point L163-1(lines 163 167) no Hoare annotation was computed. [2020-11-29 20:02:31,089 INFO L270 CegarLoopResult]: At program point L163-2(lines 163 167) the Hoare annotation is: (and (= ((_ to_fp 11 53) currentRoundingMode 1.0) ~one_asin~0) (= ULTIMATE.start_main_~x~0 (fp.neg (_ +zero 11 53))) (= ULTIMATE.start_main_~x~0 ULTIMATE.start___ieee754_asin_~x) (= currentRoundingMode roundNearestTiesToEven) (= ~huge_asin~0 ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0))) [2020-11-29 20:02:31,089 INFO L274 CegarLoopResult]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2020-11-29 20:02:31,090 INFO L274 CegarLoopResult]: For program point L163-3(lines 163 167) no Hoare annotation was computed. [2020-11-29 20:02:31,090 INFO L270 CegarLoopResult]: At program point L130-2(lines 130 134) the Hoare annotation is: false [2020-11-29 20:02:31,090 INFO L277 CegarLoopResult]: At program point L246(lines 229 247) the Hoare annotation is: true [2020-11-29 20:02:31,091 INFO L274 CegarLoopResult]: For program point L180(lines 180 195) no Hoare annotation was computed. [2020-11-29 20:02:31,096 INFO L274 CegarLoopResult]: For program point L180-1(lines 180 195) no Hoare annotation was computed. [2020-11-29 20:02:31,096 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 20:02:31,096 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 20:02:31,096 INFO L274 CegarLoopResult]: For program point L181(lines 181 194) no Hoare annotation was computed. [2020-11-29 20:02:31,097 INFO L270 CegarLoopResult]: At program point L82-2(lines 82 98) the Hoare annotation is: false [2020-11-29 20:02:31,097 INFO L274 CegarLoopResult]: For program point L82-3(lines 20 126) no Hoare annotation was computed. [2020-11-29 20:02:31,097 INFO L274 CegarLoopResult]: For program point L99(lines 99 113) no Hoare annotation was computed. [2020-11-29 20:02:31,097 INFO L274 CegarLoopResult]: For program point L182(lines 182 183) no Hoare annotation was computed. [2020-11-29 20:02:31,097 INFO L274 CegarLoopResult]: For program point L116(lines 116 117) no Hoare annotation was computed. [2020-11-29 20:02:31,097 INFO L274 CegarLoopResult]: For program point L116-2(lines 116 117) no Hoare annotation was computed. [2020-11-29 20:02:31,097 INFO L274 CegarLoopResult]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2020-11-29 20:02:31,097 INFO L270 CegarLoopResult]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2020-11-29 20:02:31,098 INFO L274 CegarLoopResult]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2020-11-29 20:02:31,098 INFO L274 CegarLoopResult]: For program point L101(lines 101 112) no Hoare annotation was computed. [2020-11-29 20:02:31,122 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:02:31,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,125 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,129 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:02:31,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,129 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,130 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,133 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,133 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,136 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,137 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,138 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,141 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 08:02:31 BoogieIcfgContainer [2020-11-29 20:02:31,141 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 20:02:31,155 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 20:02:31,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 20:02:31,155 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 20:02:31,156 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 08:02:09" (3/4) ... [2020-11-29 20:02:31,159 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 20:02:31,184 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-29 20:02:31,184 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 20:02:31,185 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:02:31,185 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 20:02:31,220 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_v_prenex_1_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_v_prenex_1_3[63:32] == hx) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == x) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~bvand32(2147483647bv32, v_skolemized_v_prenex_1_3[63:32]) == ix && ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) && \result == x [2020-11-29 20:02:31,292 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_ac536194-5ad8-4461-ac33-12b8d4fb181c/bin/uautomizer/witness.graphml [2020-11-29 20:02:31,293 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 20:02:31,294 INFO L168 Benchmark]: Toolchain (without parser) took 44337.99 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 35.5 MB in the beginning and 48.0 MB in the end (delta: -12.5 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:31,295 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory is still 38.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 20:02:31,296 INFO L168 Benchmark]: CACSL2BoogieTranslator took 572.51 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 35.3 MB in the beginning and 53.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:31,297 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.97 ms. Allocated memory is still 73.4 MB. Free memory was 53.2 MB in the beginning and 50.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:31,297 INFO L168 Benchmark]: Boogie Preprocessor took 58.97 ms. Allocated memory is still 73.4 MB. Free memory was 50.5 MB in the beginning and 48.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:31,297 INFO L168 Benchmark]: RCFGBuilder took 21379.53 ms. Allocated memory is still 73.4 MB. Free memory was 47.8 MB in the beginning and 44.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:31,298 INFO L168 Benchmark]: TraceAbstraction took 22089.66 ms. Allocated memory is still 73.4 MB. Free memory was 44.0 MB in the beginning and 28.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:31,298 INFO L168 Benchmark]: Witness Printer took 137.85 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 48.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 20:02:31,301 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 56.6 MB. Free memory is still 38.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 572.51 ms. Allocated memory was 56.6 MB in the beginning and 73.4 MB in the end (delta: 16.8 MB). Free memory was 35.3 MB in the beginning and 53.2 MB in the end (delta: -17.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.97 ms. Allocated memory is still 73.4 MB. Free memory was 53.2 MB in the beginning and 50.5 MB in the end (delta: 2.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 58.97 ms. Allocated memory is still 73.4 MB. Free memory was 50.5 MB in the beginning and 48.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 21379.53 ms. Allocated memory is still 73.4 MB. Free memory was 47.8 MB in the beginning and 44.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 22089.66 ms. Allocated memory is still 73.4 MB. Free memory was 44.0 MB in the beginning and 28.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * Witness Printer took 137.85 ms. Allocated memory is still 73.4 MB. Free memory was 53.8 MB in the beginning and 48.0 MB in the end (delta: 5.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 82]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant [2020-11-29 20:02:31,316 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:02:31,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,316 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,317 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 20:02:31,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 20:02:31,318 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0) == one_asin && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E300) - InvariantResult [Line: 160]: Loop Invariant [2020-11-29 20:02:31,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,319 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,320 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,324 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,325 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,328 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 20:02:31,329 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_v_prenex_1_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && v_skolemized_v_prenex_1_3[63:32] == hx) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && x == x) && (\exists v_skolemized_v_prenex_1_3 : bv64 :: ~bvand32(2147483647bv32, v_skolemized_v_prenex_1_3[63:32]) == ix && ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()))) && \result == x - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 69]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 21.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 258 SDtfs, 487 SDslu, 240 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 118 GetRequests, 95 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 2.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=72occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 17 NumberOfFragments, 78 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 14 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 13.7s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 114 ConstructedInterpolants, 6 QuantifiedInterpolants, 8774 SizeOfPredicates, 17 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...