./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 69874e26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/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 d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be ........................................................................................................................................................................................................................................................................................................ 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_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/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 d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-69874e2 [2020-12-01 14:54:37,233 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:54:37,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:54:37,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:54:37,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:54:37,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:54:37,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:54:37,311 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:54:37,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:54:37,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:54:37,321 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:54:37,324 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:54:37,324 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:54:37,328 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:54:37,329 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:54:37,331 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:54:37,332 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:54:37,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:54:37,341 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:54:37,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:54:37,351 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:54:37,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:54:37,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:54:37,356 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:54:37,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:54:37,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:54:37,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:54:37,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:54:37,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:54:37,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:54:37,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:54:37,372 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:54:37,374 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:54:37,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:54:37,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:54:37,377 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:54:37,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:54:37,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:54:37,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:54:37,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:54:37,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:54:37,382 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-12-01 14:54:37,421 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:54:37,426 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:54:37,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:54:37,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:54:37,428 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:54:37,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:54:37,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:54:37,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-01 14:54:37,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:54:37,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:54:37,430 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:54:37,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:54:37,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:54:37,431 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:54:37,431 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:54:37,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:54:37,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:54:37,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:54:37,432 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:54:37,432 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:54:37,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:54:37,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:54:37,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:54:37,433 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:54:37,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:54:37,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-01 14:54:37,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-01 14:54:37,434 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:54:37,435 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:54:37,435 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_0fef5a10-d0a8-4378-bca8-3b63e032a449/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be [2020-12-01 14:54:37,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:54:37,773 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:54:37,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:54:37,778 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:54:37,779 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:54:37,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2020-12-01 14:54:37,869 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/bfde21533/3f436e4c4ab847a7b45b170c66c87352/FLAGdcb04d709 [2020-12-01 14:54:38,434 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:54:38,435 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2020-12-01 14:54:38,453 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/bfde21533/3f436e4c4ab847a7b45b170c66c87352/FLAGdcb04d709 [2020-12-01 14:54:38,779 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/bfde21533/3f436e4c4ab847a7b45b170c66c87352 [2020-12-01 14:54:38,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:54:38,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:54:38,786 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:54:38,786 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:54:38,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:54:38,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:54:38" (1/1) ... [2020-12-01 14:54:38,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3077ce58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:38, skipping insertion in model container [2020-12-01 14:54:38,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:54:38" (1/1) ... [2020-12-01 14:54:38,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:54:38,820 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:54:39,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:54:39,093 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:54:39,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:54:39,144 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:54:39,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39 WrapperNode [2020-12-01 14:54:39,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:54:39,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:54:39,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:54:39,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:54:39,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,169 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:54:39,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:54:39,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:54:39,199 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:54:39,208 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... [2020-12-01 14:54:39,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:54:39,239 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:54:39,239 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:54:39,239 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:54:39,240 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:54:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-01 14:54:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:54:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-01 14:54:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-12-01 14:54:39,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-12-01 14:54:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:54:39,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:54:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-01 14:54:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2020-12-01 14:54:39,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 14:54:39,907 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:54:39,907 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 14:54:39,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:54:39 BoogieIcfgContainer [2020-12-01 14:54:39,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:54:39,911 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:54:39,911 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:54:39,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:54:39,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:54:38" (1/3) ... [2020-12-01 14:54:39,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc140e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:54:39, skipping insertion in model container [2020-12-01 14:54:39,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:39" (2/3) ... [2020-12-01 14:54:39,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cc140e7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:54:39, skipping insertion in model container [2020-12-01 14:54:39,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:54:39" (3/3) ... [2020-12-01 14:54:39,922 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2020-12-01 14:54:39,937 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:54:39,942 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 14:54:39,953 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 14:54:39,991 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:54:39,992 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:54:39,992 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:54:39,992 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:54:39,992 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:54:39,992 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:54:39,992 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:54:39,993 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:54:40,010 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-01 14:54:40,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 14:54:40,018 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:54:40,019 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:54:40,019 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:54:40,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:54:40,026 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-12-01 14:54:40,035 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:54:40,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358018222] [2020-12-01 14:54:40,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:54:40,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:54:40,289 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:54:40,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358018222] [2020-12-01 14:54:40,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:54:40,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-01 14:54:40,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899255351] [2020-12-01 14:54:40,297 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 14:54:40,297 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-01 14:54:40,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 14:54:40,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 14:54:40,315 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-01 14:54:40,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:54:40,344 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-12-01 14:54:40,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 14:54:40,346 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 14:54:40,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:54:40,370 INFO L225 Difference]: With dead ends: 83 [2020-12-01 14:54:40,370 INFO L226 Difference]: Without dead ends: 39 [2020-12-01 14:54:40,375 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 14:54:40,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-01 14:54:40,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-01 14:54:40,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-01 14:54:40,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-12-01 14:54:40,417 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-12-01 14:54:40,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:54:40,418 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-12-01 14:54:40,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 14:54:40,418 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-12-01 14:54:40,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 14:54:40,420 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:54:40,420 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:54:40,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-01 14:54:40,421 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:54:40,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:54:40,424 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-12-01 14:54:40,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-01 14:54:40,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887742850] [2020-12-01 14:54:40,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-01 14:54:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:54:40,550 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:54:40,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-01 14:54:40,645 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-01 14:54:40,687 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-01 14:54:40,687 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-01 14:54:40,688 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-01 14:54:40,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:54:40 BoogieIcfgContainer [2020-12-01 14:54:40,718 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:54:40,719 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:54:40,719 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:54:40,719 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:54:40,720 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:54:39" (3/4) ... [2020-12-01 14:54:40,723 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-12-01 14:54:40,723 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:54:40,725 INFO L168 Benchmark]: Toolchain (without parser) took 1940.64 ms. Allocated memory is still 132.1 MB. Free memory was 102.7 MB in the beginning and 91.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 8.3 MB. Max. memory is 16.1 GB. [2020-12-01 14:54:40,726 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:54:40,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 359.37 ms. Allocated memory is still 132.1 MB. Free memory was 102.7 MB in the beginning and 105.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-12-01 14:54:40,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.46 ms. Allocated memory is still 132.1 MB. Free memory was 105.8 MB in the beginning and 103.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:54:40,728 INFO L168 Benchmark]: Boogie Preprocessor took 38.88 ms. Allocated memory is still 132.1 MB. Free memory was 103.7 MB in the beginning and 102.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:54:40,729 INFO L168 Benchmark]: RCFGBuilder took 670.41 ms. Allocated memory is still 132.1 MB. Free memory was 102.1 MB in the beginning and 77.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:54:40,730 INFO L168 Benchmark]: TraceAbstraction took 807.04 ms. Allocated memory is still 132.1 MB. Free memory was 77.3 MB in the beginning and 92.4 MB in the end (delta: -15.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:54:40,730 INFO L168 Benchmark]: Witness Printer took 4.86 ms. Allocated memory is still 132.1 MB. Free memory was 92.4 MB in the beginning and 91.8 MB in the end (delta: 597.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:54:40,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 88.1 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 359.37 ms. Allocated memory is still 132.1 MB. Free memory was 102.7 MB in the beginning and 105.8 MB in the end (delta: -3.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.46 ms. Allocated memory is still 132.1 MB. Free memory was 105.8 MB in the beginning and 103.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.88 ms. Allocated memory is still 132.1 MB. Free memory was 103.7 MB in the beginning and 102.1 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 670.41 ms. Allocated memory is still 132.1 MB. Free memory was 102.1 MB in the beginning and 77.6 MB in the end (delta: 24.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 807.04 ms. Allocated memory is still 132.1 MB. Free memory was 77.3 MB in the beginning and 92.4 MB in the end (delta: -15.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.86 ms. Allocated memory is still 132.1 MB. Free memory was 92.4 MB in the beginning and 91.8 MB in the end (delta: 597.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 110, overapproximation of someUnaryDOUBLEoperation at line 16, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryArithmeticFLOAToperation at line 37, overapproximation of bitwiseXor at line 33. Possible FailurePath: [L14-L17] static const float one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={9:0}] [L119] float x = 1.0f / 0.0f; [L120] float y = __VERIFIER_nondet_float(); [L20] __int32_t n, hx, hy, hz, ix, iy, sx, i; VAL [one_fmod=1, Zero_fmod={9:0}] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (hx) = gf_u.word [L28] ieee_float_shape_type gf_u; [L29] gf_u.value = (y) [L30] EXPR gf_u.word [L30] (hy) = gf_u.word [L32] sx = hx & 0x80000000 [L33] hx ^= sx [L34] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={9:0}] [L36] COND TRUE ((hy) == 0) || !((hx) < 0x7f800000L) || ((hy) > 0x7f800000L) [L37] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={9:0}] [L121] float res = fmod_float(x, y); [L110] return x != x; VAL [one_fmod=1, Zero_fmod={9:0}] [L124] COND TRUE !isnan_float(res) [L3] __assert_fail("0", "float_req_bl_1122a.c", 3, "reach_error") VAL [one_fmod=1, Zero_fmod={9:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 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=43occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 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 0.2.0-69874e2 [2020-12-01 14:54:43,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-01 14:54:43,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-01 14:54:43,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-01 14:54:43,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-01 14:54:43,279 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-01 14:54:43,281 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-01 14:54:43,283 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-01 14:54:43,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-01 14:54:43,287 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-01 14:54:43,288 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-01 14:54:43,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-01 14:54:43,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-01 14:54:43,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-01 14:54:43,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-01 14:54:43,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-01 14:54:43,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-01 14:54:43,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-01 14:54:43,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-01 14:54:43,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-01 14:54:43,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-01 14:54:43,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-01 14:54:43,319 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-01 14:54:43,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-01 14:54:43,328 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-01 14:54:43,334 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-01 14:54:43,334 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-01 14:54:43,336 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-01 14:54:43,337 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-01 14:54:43,339 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-01 14:54:43,339 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-01 14:54:43,340 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-01 14:54:43,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-01 14:54:43,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-01 14:54:43,345 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-01 14:54:43,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-01 14:54:43,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-01 14:54:43,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-01 14:54:43,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-01 14:54:43,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-01 14:54:43,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-01 14:54:43,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-12-01 14:54:43,400 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-01 14:54:43,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-01 14:54:43,403 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-01 14:54:43,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-01 14:54:43,404 INFO L138 SettingsManager]: * Use SBE=true [2020-12-01 14:54:43,404 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-01 14:54:43,404 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-01 14:54:43,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-01 14:54:43,405 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-01 14:54:43,405 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-01 14:54:43,406 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-01 14:54:43,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-01 14:54:43,407 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-01 14:54:43,407 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-01 14:54:43,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-01 14:54:43,407 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-01 14:54:43,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-01 14:54:43,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-01 14:54:43,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-01 14:54:43,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-01 14:54:43,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-01 14:54:43,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-01 14:54:43,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:54:43,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-01 14:54:43,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-01 14:54:43,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-01 14:54:43,410 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-12-01 14:54:43,410 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-12-01 14:54:43,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-01 14:54:43,411 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-01 14:54:43,411 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-01 14:54:43,411 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_0fef5a10-d0a8-4378-bca8-3b63e032a449/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f6d13a759f4ddcf05c9602696acd1e2bc4b5be [2020-12-01 14:54:43,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-01 14:54:43,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-01 14:54:43,867 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-01 14:54:43,869 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-01 14:54:43,870 INFO L275 PluginConnector]: CDTParser initialized [2020-12-01 14:54:43,871 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2020-12-01 14:54:43,944 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/01d18fd6a/9b95d8e148c94a4fb8a9df313e7dd1b4/FLAGd8a11408a [2020-12-01 14:54:44,533 INFO L306 CDTParser]: Found 1 translation units. [2020-12-01 14:54:44,535 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/sv-benchmarks/c/float-newlib/float_req_bl_1122a.c [2020-12-01 14:54:44,545 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/01d18fd6a/9b95d8e148c94a4fb8a9df313e7dd1b4/FLAGd8a11408a [2020-12-01 14:54:44,880 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/data/01d18fd6a/9b95d8e148c94a4fb8a9df313e7dd1b4 [2020-12-01 14:54:44,883 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-01 14:54:44,886 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-01 14:54:44,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-01 14:54:44,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-01 14:54:44,895 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-01 14:54:44,896 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:54:44" (1/1) ... [2020-12-01 14:54:44,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c6b1564 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:44, skipping insertion in model container [2020-12-01 14:54:44,900 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 02:54:44" (1/1) ... [2020-12-01 14:54:44,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-01 14:54:44,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-01 14:54:45,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:54:45,149 INFO L203 MainTranslator]: Completed pre-run [2020-12-01 14:54:45,186 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-01 14:54:45,235 INFO L208 MainTranslator]: Completed translation [2020-12-01 14:54:45,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45 WrapperNode [2020-12-01 14:54:45,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-01 14:54:45,238 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-01 14:54:45,238 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-01 14:54:45,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-01 14:54:45,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,333 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-01 14:54:45,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-01 14:54:45,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-01 14:54:45,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-01 14:54:45,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,366 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,367 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... [2020-12-01 14:54:45,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-01 14:54:45,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-01 14:54:45,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-01 14:54:45,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-01 14:54:45,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-01 14:54:45,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2020-12-01 14:54:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-01 14:54:45,495 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-01 14:54:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-12-01 14:54:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-12-01 14:54:45,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-01 14:54:45,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-01 14:54:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-12-01 14:54:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-12-01 14:54:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-01 14:54:48,894 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-01 14:54:48,900 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-12-01 14:54:48,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:54:48 BoogieIcfgContainer [2020-12-01 14:54:48,902 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-01 14:54:48,903 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-01 14:54:48,904 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-01 14:54:48,907 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-01 14:54:48,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 02:54:44" (1/3) ... [2020-12-01 14:54:48,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48308c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:54:48, skipping insertion in model container [2020-12-01 14:54:48,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 02:54:45" (2/3) ... [2020-12-01 14:54:48,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48308c0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 02:54:48, skipping insertion in model container [2020-12-01 14:54:48,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:54:48" (3/3) ... [2020-12-01 14:54:48,910 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122a.c [2020-12-01 14:54:48,924 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-01 14:54:48,928 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-01 14:54:48,939 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-01 14:54:48,963 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-01 14:54:48,964 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-01 14:54:48,964 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-01 14:54:48,964 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-01 14:54:48,964 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-01 14:54:48,964 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-01 14:54:48,964 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-01 14:54:48,964 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-01 14:54:48,978 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states. [2020-12-01 14:54:48,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-01 14:54:48,983 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:54:48,984 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:54:48,984 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:54:48,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:54:48,989 INFO L82 PathProgramCache]: Analyzing trace with hash 666555284, now seen corresponding path program 1 times [2020-12-01 14:54:48,999 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 14:54:49,000 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [913419011] [2020-12-01 14:54:49,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-01 14:54:49,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:54:49,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2020-12-01 14:54:49,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:54:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:54:49,402 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 14:54:49,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:54:49,416 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [913419011] [2020-12-01 14:54:49,416 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:54:49,416 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-12-01 14:54:49,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46097397] [2020-12-01 14:54:49,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-01 14:54:49,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 14:54:49,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-01 14:54:49,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-01 14:54:49,437 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 2 states. [2020-12-01 14:54:49,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:54:49,457 INFO L93 Difference]: Finished difference Result 83 states and 139 transitions. [2020-12-01 14:54:49,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-01 14:54:49,459 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-12-01 14:54:49,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:54:49,468 INFO L225 Difference]: With dead ends: 83 [2020-12-01 14:54:49,468 INFO L226 Difference]: Without dead ends: 39 [2020-12-01 14:54:49,471 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 [2020-12-01 14:54:49,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-01 14:54:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-01 14:54:49,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-01 14:54:49,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 54 transitions. [2020-12-01 14:54:49,507 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 54 transitions. Word has length 10 [2020-12-01 14:54:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:54:49,507 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 54 transitions. [2020-12-01 14:54:49,507 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-01 14:54:49,508 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 54 transitions. [2020-12-01 14:54:49,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-12-01 14:54:49,508 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:54:49,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:54:49,722 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-01 14:54:49,722 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:54:49,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:54:49,723 INFO L82 PathProgramCache]: Analyzing trace with hash 131116369, now seen corresponding path program 1 times [2020-12-01 14:54:49,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 14:54:49,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1405026631] [2020-12-01 14:54:49,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-01 14:54:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:54:50,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-01 14:54:50,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:54:51,087 WARN L197 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-12-01 14:54:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:54:52,498 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 14:54:56,373 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2020-12-01 14:54:56,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:54:56,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1405026631] [2020-12-01 14:54:56,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:54:56,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2020-12-01 14:54:56,618 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491112032] [2020-12-01 14:54:56,620 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-12-01 14:54:56,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 14:54:56,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-12-01 14:54:56,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=69, Unknown=1, NotChecked=16, Total=110 [2020-12-01 14:54:56,622 INFO L87 Difference]: Start difference. First operand 39 states and 54 transitions. Second operand 11 states. [2020-12-01 14:54:58,839 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_float_~x ULTIMATE.start_fmod_float_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_currentRoundingMode roundNearestTiesToEven) (= c_ULTIMATE.start_fmod_float_~x (fp.div c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 1.0) (_ +zero 8 24)))) is different from true [2020-12-01 14:55:03,482 WARN L197 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 17 DAG size of output: 15 [2020-12-01 14:55:05,715 WARN L197 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 19 DAG size of output: 17 [2020-12-01 14:55:06,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:55:06,247 INFO L93 Difference]: Finished difference Result 44 states and 58 transitions. [2020-12-01 14:55:06,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-01 14:55:06,248 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 12 [2020-12-01 14:55:06,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:55:06,249 INFO L225 Difference]: With dead ends: 44 [2020-12-01 14:55:06,249 INFO L226 Difference]: Without dead ends: 39 [2020-12-01 14:55:06,251 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 14.5s TimeCoverageRelationStatistics Valid=41, Invalid=97, Unknown=2, NotChecked=42, Total=182 [2020-12-01 14:55:06,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-12-01 14:55:06,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2020-12-01 14:55:06,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-12-01 14:55:06,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 53 transitions. [2020-12-01 14:55:06,258 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 53 transitions. Word has length 12 [2020-12-01 14:55:06,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:55:06,259 INFO L481 AbstractCegarLoop]: Abstraction has 39 states and 53 transitions. [2020-12-01 14:55:06,259 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-12-01 14:55:06,259 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 53 transitions. [2020-12-01 14:55:06,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-01 14:55:06,260 INFO L414 BasicCegarLoop]: Found error trace [2020-12-01 14:55:06,260 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-01 14:55:06,462 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-01 14:55:06,462 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-01 14:55:06,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-01 14:55:06,463 INFO L82 PathProgramCache]: Analyzing trace with hash -302456811, now seen corresponding path program 1 times [2020-12-01 14:55:06,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-12-01 14:55:06,464 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2094872199] [2020-12-01 14:55:06,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-01 14:55:06,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-01 14:55:06,584 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-01 14:55:06,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-01 14:55:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:55:06,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-01 14:55:06,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-01 14:55:06,989 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2094872199] [2020-12-01 14:55:06,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-12-01 14:55:06,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2020-12-01 14:55:06,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953999] [2020-12-01 14:55:06,990 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-01 14:55:06,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-12-01 14:55:06,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-01 14:55:06,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-01 14:55:06,992 INFO L87 Difference]: Start difference. First operand 39 states and 53 transitions. Second operand 7 states. [2020-12-01 14:55:07,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-01 14:55:07,084 INFO L93 Difference]: Finished difference Result 39 states and 53 transitions. [2020-12-01 14:55:07,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-01 14:55:07,085 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-12-01 14:55:07,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-01 14:55:07,086 INFO L225 Difference]: With dead ends: 39 [2020-12-01 14:55:07,086 INFO L226 Difference]: Without dead ends: 0 [2020-12-01 14:55:07,087 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-01 14:55:07,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-01 14:55:07,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-01 14:55:07,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-01 14:55:07,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-01 14:55:07,087 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-12-01 14:55:07,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-01 14:55:07,088 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-01 14:55:07,088 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-01 14:55:07,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-01 14:55:07,088 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-01 14:55:07,297 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-01 14:55:07,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-01 14:55:08,277 WARN L197 SmtUtils]: Spent 901.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-12-01 14:55:10,655 WARN L197 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 17 DAG size of output: 11 [2020-12-01 14:55:10,658 INFO L262 CegarLoopResult]: For program point L27(lines 27 31) no Hoare annotation was computed. [2020-12-01 14:55:10,658 INFO L262 CegarLoopResult]: For program point L60-1(lines 60 65) no Hoare annotation was computed. [2020-12-01 14:55:10,658 INFO L262 CegarLoopResult]: For program point L27-1(lines 19 107) no Hoare annotation was computed. [2020-12-01 14:55:10,658 INFO L262 CegarLoopResult]: For program point L27-2(lines 27 31) no Hoare annotation was computed. [2020-12-01 14:55:10,659 INFO L258 CegarLoopResult]: At program point L110(line 110) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((ULTIMATE.start_fmod_float_~y (_ FloatingPoint 8 24))) (= (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)) ULTIMATE.start_fmod_float_~y))) (fp.div roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_fmod_float_#res|))) [2020-12-01 14:55:10,659 INFO L262 CegarLoopResult]: For program point L69(lines 69 75) no Hoare annotation was computed. [2020-12-01 14:55:10,659 INFO L262 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-12-01 14:55:10,660 INFO L258 CegarLoopResult]: At program point L69-2(lines 67 76) the Hoare annotation is: false [2020-12-01 14:55:10,660 INFO L262 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-12-01 14:55:10,660 INFO L262 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-12-01 14:55:10,660 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-01 14:55:10,660 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-01 14:55:10,660 INFO L262 CegarLoopResult]: For program point L78(lines 78 80) no Hoare annotation was computed. [2020-12-01 14:55:10,661 INFO L262 CegarLoopResult]: For program point L78-2(lines 19 107) no Hoare annotation was computed. [2020-12-01 14:55:10,661 INFO L262 CegarLoopResult]: For program point L54-1(lines 19 107) no Hoare annotation was computed. [2020-12-01 14:55:10,661 INFO L262 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-12-01 14:55:10,661 INFO L265 CegarLoopResult]: At program point L129(lines 112 130) the Hoare annotation is: true [2020-12-01 14:55:10,661 INFO L262 CegarLoopResult]: For program point L88(lines 88 105) no Hoare annotation was computed. [2020-12-01 14:55:10,662 INFO L262 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2020-12-01 14:55:10,662 INFO L258 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_fmod_float_~x (fp.div currentRoundingMode ((_ to_fp 8 24) currentRoundingMode 1.0) (_ +zero 8 24))))) [2020-12-01 14:55:10,662 INFO L262 CegarLoopResult]: For program point L72(lines 72 73) no Hoare annotation was computed. [2020-12-01 14:55:10,662 INFO L262 CegarLoopResult]: For program point L48(lines 19 107) no Hoare annotation was computed. [2020-12-01 14:55:10,663 INFO L258 CegarLoopResult]: At program point L106(lines 19 107) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_float_#res| |ULTIMATE.start_fmod_float_#res|)) [2020-12-01 14:55:10,663 INFO L262 CegarLoopResult]: For program point L40(lines 40 41) no Hoare annotation was computed. [2020-12-01 14:55:10,663 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-01 14:55:10,663 INFO L262 CegarLoopResult]: For program point L90-1(lines 90 94) no Hoare annotation was computed. [2020-12-01 14:55:10,663 INFO L258 CegarLoopResult]: At program point L90-2(lines 90 94) the Hoare annotation is: false [2020-12-01 14:55:10,664 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-12-01 14:55:10,664 INFO L262 CegarLoopResult]: For program point L49-2(lines 49 50) no Hoare annotation was computed. [2020-12-01 14:55:10,664 INFO L258 CegarLoopResult]: At program point L49-3(lines 49 50) the Hoare annotation is: false [2020-12-01 14:55:10,665 INFO L262 CegarLoopResult]: For program point L99-1(lines 99 103) no Hoare annotation was computed. [2020-12-01 14:55:10,665 INFO L258 CegarLoopResult]: At program point L99-2(lines 99 103) the Hoare annotation is: false [2020-12-01 14:55:10,665 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-01 14:55:10,665 INFO L262 CegarLoopResult]: For program point L99-3(lines 99 103) no Hoare annotation was computed. [2020-12-01 14:55:10,665 INFO L262 CegarLoopResult]: For program point L124(lines 124 127) no Hoare annotation was computed. [2020-12-01 14:55:10,666 INFO L262 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-12-01 14:55:10,666 INFO L262 CegarLoopResult]: For program point L42-1(lines 19 107) no Hoare annotation was computed. [2020-12-01 14:55:10,666 INFO L262 CegarLoopResult]: For program point L67-1(lines 67 76) no Hoare annotation was computed. [2020-12-01 14:55:10,667 INFO L262 CegarLoopResult]: For program point L67-3(lines 67 76) no Hoare annotation was computed. [2020-12-01 14:55:10,667 INFO L258 CegarLoopResult]: At program point L84-2(lines 84 87) the Hoare annotation is: false [2020-12-01 14:55:10,667 INFO L262 CegarLoopResult]: For program point L84-3(lines 19 107) no Hoare annotation was computed. [2020-12-01 14:55:10,668 INFO L262 CegarLoopResult]: For program point L43-2(lines 43 44) no Hoare annotation was computed. [2020-12-01 14:55:10,668 INFO L258 CegarLoopResult]: At program point L43-3(lines 43 44) the Hoare annotation is: false [2020-12-01 14:55:10,687 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,688 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,689 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-12-01 14:55:10,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,689 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,690 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-12-01 14:55:10,693 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,694 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-12-01 14:55:10,694 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,695 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,695 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-12-01 14:55:10,698 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,698 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,699 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 14:55:10,699 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,699 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,700 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,700 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 14:55:10,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 02:55:10 BoogieIcfgContainer [2020-12-01 14:55:10,703 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-01 14:55:10,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-01 14:55:10,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-01 14:55:10,708 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-01 14:55:10,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 02:54:48" (3/4) ... [2020-12-01 14:55:10,712 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-01 14:55:10,723 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-01 14:55:10,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-12-01 14:55:10,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:55:10,724 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-01 14:55:10,748 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) [2020-12-01 14:55:10,783 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0fef5a10-d0a8-4378-bca8-3b63e032a449/bin/uautomizer/witness.graphml [2020-12-01 14:55:10,784 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-01 14:55:10,785 INFO L168 Benchmark]: Toolchain (without parser) took 25898.39 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.9 MB in the beginning and 41.7 MB in the end (delta: -14.8 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2020-12-01 14:55:10,786 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:55:10,790 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.60 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 44.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:55:10,791 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.19 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 42.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-01 14:55:10,791 INFO L168 Benchmark]: Boogie Preprocessor took 67.45 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 40.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-01 14:55:10,792 INFO L168 Benchmark]: RCFGBuilder took 3498.84 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 42.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:55:10,792 INFO L168 Benchmark]: TraceAbstraction took 21799.64 ms. Allocated memory is still 60.8 MB. Free memory was 42.0 MB in the beginning and 25.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. [2020-12-01 14:55:10,793 INFO L168 Benchmark]: Witness Printer took 80.31 ms. Allocated memory is still 60.8 MB. Free memory was 25.2 MB in the beginning and 41.7 MB in the end (delta: -16.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-12-01 14:55:10,799 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 50.3 MB. Free memory was 32.2 MB in the beginning and 32.2 MB in the end (delta: 25.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 346.60 ms. Allocated memory was 50.3 MB in the beginning and 60.8 MB in the end (delta: 10.5 MB). Free memory was 26.7 MB in the beginning and 44.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 8.1 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.19 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 42.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.45 ms. Allocated memory is still 60.8 MB. Free memory was 42.1 MB in the beginning and 40.2 MB in the end (delta: 1.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 3498.84 ms. Allocated memory is still 60.8 MB. Free memory was 40.0 MB in the beginning and 42.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 14.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21799.64 ms. Allocated memory is still 60.8 MB. Free memory was 42.0 MB in the beginning and 25.2 MB in the end (delta: 16.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 16.1 GB. * Witness Printer took 80.31 ms. Allocated memory is still 60.8 MB. Free memory was 25.2 MB in the beginning and 41.7 MB in the end (delta: -16.5 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 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[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - 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[ULTIMATE.start_fmod_float_~y,QUANTIFIED] - 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - 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[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,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 * 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: 19]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 112]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 110]: Loop Invariant [2020-12-01 14:55:10,809 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,809 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,810 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-12-01 14:55:10,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,810 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,811 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-12-01 14:55:10,811 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,812 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] [2020-12-01 14:55:10,812 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,813 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,813 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_fmod_float_~y,QUANTIFIED] Derived loop invariant: 1bv32 == \result && (\exists ULTIMATE.start_fmod_float_~y : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y), ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0), ~Pluszero~LONGDOUBLE()), ULTIMATE.start_fmod_float_~y)) == \result) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant [2020-12-01 14:55:10,814 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,814 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,814 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,814 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-12-01 14:55:10,815 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-12-01 14:55:10,815 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,815 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-12-01 14:55:10,815 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~to_fp~LONGDOUBLE(currentRoundingMode, 1.0), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 43 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.3s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 9.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 111 SDtfs, 11 SDslu, 260 SDs, 0 SdLazy, 32 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 14.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 10 PreInvPairs, 14 NumberOfFragments, 51 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 31 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 14 QuantifiedInterpolants, 4813 SizeOfPredicates, 19 NumberOfNonLiveVariables, 196 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...