./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/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 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c .............................................................................................................................................................................................................................................................................................. 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_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/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 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:35:32,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:35:32,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:35:32,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:35:32,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:35:32,348 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:35:32,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:35:32,352 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:35:32,358 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:35:32,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:35:32,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:35:32,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:35:32,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:35:32,371 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:35:32,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:35:32,378 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:35:32,379 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:35:32,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:35:32,382 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:35:32,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:35:32,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:35:32,394 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:35:32,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:35:32,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:35:32,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:35:32,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:35:32,406 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:35:32,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:35:32,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:35:32,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:35:32,410 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:35:32,411 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:35:32,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:35:32,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:35:32,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:35:32,416 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:35:32,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:35:32,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:35:32,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:35:32,420 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:35:32,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:35:32,423 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 23:35:32,462 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:35:32,463 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:35:32,464 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:35:32,465 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:35:32,465 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:35:32,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:35:32,465 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:35:32,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 23:35:32,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:35:32,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:35:32,467 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:35:32,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:35:32,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:35:32,468 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:35:32,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:35:32,468 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:35:32,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:35:32,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:35:32,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:35:32,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:35:32,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:35:32,470 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:35:32,470 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:35:32,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:35:32,470 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:35:32,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 23:35:32,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 23:35:32,471 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:35:32,471 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:35:32,471 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_27a9fb3c-8326-4450-a891-03b2ce17b40a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c [2020-11-29 23:35:32,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:35:32,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:35:32,808 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:35:32,810 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:35:32,812 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:35:32,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-29 23:35:32,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/25431ea2e/06b7b2de513b41d08bfab91facceb9e1/FLAGb815564b4 [2020-11-29 23:35:33,400 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:35:33,401 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-29 23:35:33,407 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/25431ea2e/06b7b2de513b41d08bfab91facceb9e1/FLAGb815564b4 [2020-11-29 23:35:33,792 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/25431ea2e/06b7b2de513b41d08bfab91facceb9e1 [2020-11-29 23:35:33,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:35:33,797 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:35:33,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:33,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:35:33,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:35:33,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:33" (1/1) ... [2020-11-29 23:35:33,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64e38abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:33, skipping insertion in model container [2020-11-29 23:35:33,804 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:33" (1/1) ... [2020-11-29 23:35:33,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:35:33,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:35:34,052 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:34,064 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:35:34,093 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:34,107 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:35:34,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34 WrapperNode [2020-11-29 23:35:34,108 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:34,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:34,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:35:34,110 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:35:34,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:34,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:35:34,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:35:34,151 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:35:34,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,163 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,166 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,176 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... [2020-11-29 23:35:34,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:35:34,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:35:34,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:35:34,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:35:34,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:35:34,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 23:35:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:35:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-11-29 23:35:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-29 23:35:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 23:35:34,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:35:34,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:35:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 23:35:34,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:35:34,691 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:35:34,692 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 23:35:34,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:34 BoogieIcfgContainer [2020-11-29 23:35:34,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:35:34,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:35:34,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:35:34,700 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:35:34,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:35:33" (1/3) ... [2020-11-29 23:35:34,701 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9e3e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:35:34, skipping insertion in model container [2020-11-29 23:35:34,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:34" (2/3) ... [2020-11-29 23:35:34,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c9e3e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:35:34, skipping insertion in model container [2020-11-29 23:35:34,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:34" (3/3) ... [2020-11-29 23:35:34,704 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2020-11-29 23:35:34,723 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:35:34,730 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:35:34,740 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:35:34,761 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:35:34,761 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:35:34,761 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:35:34,762 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:35:34,762 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:35:34,762 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:35:34,762 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:35:34,762 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:35:34,772 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-29 23:35:34,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:35:34,777 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:34,777 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:34,777 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:34,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:34,782 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2020-11-29 23:35:34,788 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:34,788 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711841582] [2020-11-29 23:35:34,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:34,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:34,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:34,905 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711841582] [2020-11-29 23:35:34,905 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:34,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 23:35:34,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236071348] [2020-11-29 23:35:34,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:35:34,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 23:35:34,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:35:34,924 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:35:34,927 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-11-29 23:35:34,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:34,957 INFO L93 Difference]: Finished difference Result 47 states and 71 transitions. [2020-11-29 23:35:34,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:35:34,959 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 23:35:34,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:34,986 INFO L225 Difference]: With dead ends: 47 [2020-11-29 23:35:34,987 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:35:34,989 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:35:35,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:35:35,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 23:35:35,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 23:35:35,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-11-29 23:35:35,045 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2020-11-29 23:35:35,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:35,046 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-11-29 23:35:35,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:35:35,046 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-11-29 23:35:35,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:35:35,048 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:35,048 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:35,049 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 23:35:35,050 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:35,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:35,054 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2020-11-29 23:35:35,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 23:35:35,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149898970] [2020-11-29 23:35:35,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 23:35:35,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:35,139 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:35,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 23:35:35,181 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 23:35:35,216 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 23:35:35,217 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 23:35:35,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 23:35:35,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:35:35 BoogieIcfgContainer [2020-11-29 23:35:35,257 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:35:35,258 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:35:35,258 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:35:35,259 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:35:35,259 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:34" (3/4) ... [2020-11-29 23:35:35,262 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 23:35:35,262 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:35:35,266 INFO L168 Benchmark]: Toolchain (without parser) took 1466.26 ms. Allocated memory is still 113.2 MB. Free memory was 85.0 MB in the beginning and 80.6 MB in the end (delta: 4.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:35,267 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 79.7 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:35,268 INFO L168 Benchmark]: CACSL2BoogieTranslator took 309.92 ms. Allocated memory is still 113.2 MB. Free memory was 84.7 MB in the beginning and 89.7 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:35,269 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 87.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:35,270 INFO L168 Benchmark]: Boogie Preprocessor took 53.61 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:35,271 INFO L168 Benchmark]: RCFGBuilder took 488.89 ms. Allocated memory is still 113.2 MB. Free memory was 86.2 MB in the beginning and 67.0 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:35,272 INFO L168 Benchmark]: TraceAbstraction took 562.50 ms. Allocated memory is still 113.2 MB. Free memory was 66.6 MB in the beginning and 80.6 MB in the end (delta: -13.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:35,272 INFO L168 Benchmark]: Witness Printer took 4.34 ms. Allocated memory is still 113.2 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:35,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 79.7 MB. Free memory is still 37.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 309.92 ms. Allocated memory is still 113.2 MB. Free memory was 84.7 MB in the beginning and 89.7 MB in the end (delta: -4.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.11 ms. Allocated memory is still 113.2 MB. Free memory was 89.7 MB in the beginning and 87.8 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.61 ms. Allocated memory is still 113.2 MB. Free memory was 87.8 MB in the beginning and 86.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 488.89 ms. Allocated memory is still 113.2 MB. Free memory was 86.2 MB in the beginning and 67.0 MB in the end (delta: 19.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 562.50 ms. Allocated memory is still 113.2 MB. Free memory was 66.6 MB in the beginning and 80.6 MB in the end (delta: -13.9 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.34 ms. Allocated memory is still 113.2 MB. Free memory is still 80.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 3]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 51, overapproximation of bitwiseAnd at line 30. Possible FailurePath: [L70] double x = 0.0 / 0.0; [L20] int signbit; [L21] int msw; [L22] unsigned int lsw; [L23] int exponent_less_1023; [L25] ieee_double_shape_type ew_u; [L26] ew_u.value = (x) [L27] EXPR ew_u.parts.msw [L27] (msw) = ew_u.parts.msw [L28] EXPR ew_u.parts.lsw [L28] (lsw) = ew_u.parts.lsw [L30] signbit = msw & 0x80000000 [L31] exponent_less_1023 = ((msw & 0x7ff00000) >> 20) - 1023 [L32] COND FALSE !(exponent_less_1023 < 20) [L49] COND TRUE exponent_less_1023 > 51 [L50] COND TRUE exponent_less_1023 == 1024 [L51] return x + x; [L72] double res = trunc_double(x); [L17] return x != x; [L75] COND TRUE !isnan_double(res) [L3] __assert_fail("0", "double_req_bl_1071.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 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=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-a4ecdab [2020-11-29 23:35:37,788 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 23:35:37,791 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 23:35:37,840 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 23:35:37,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 23:35:37,845 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 23:35:37,848 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 23:35:37,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 23:35:37,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 23:35:37,862 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 23:35:37,863 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 23:35:37,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 23:35:37,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 23:35:37,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 23:35:37,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 23:35:37,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 23:35:37,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 23:35:37,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 23:35:37,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 23:35:37,894 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 23:35:37,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 23:35:37,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 23:35:37,905 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 23:35:37,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 23:35:37,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 23:35:37,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 23:35:37,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 23:35:37,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 23:35:37,920 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 23:35:37,921 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 23:35:37,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 23:35:37,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 23:35:37,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 23:35:37,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 23:35:37,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 23:35:37,927 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 23:35:37,928 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 23:35:37,929 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 23:35:37,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 23:35:37,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 23:35:37,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 23:35:37,933 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 23:35:37,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 23:35:37,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 23:35:37,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 23:35:37,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 23:35:37,988 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 23:35:37,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 23:35:37,989 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 23:35:37,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 23:35:37,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 23:35:37,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 23:35:37,991 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 23:35:37,991 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 23:35:37,991 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 23:35:37,992 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 23:35:37,992 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 23:35:37,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 23:35:37,992 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 23:35:37,993 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 23:35:37,993 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 23:35:37,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 23:35:37,994 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 23:35:37,994 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 23:35:37,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:35:37,995 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 23:35:37,995 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 23:35:37,995 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 23:35:37,996 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 23:35:37,996 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 23:35:37,996 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 23:35:37,996 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 23:35:37,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 23:35:37,997 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_27a9fb3c-8326-4450-a891-03b2ce17b40a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47ecd0c3a9cbb067bdc3246482dd87f3fbac8a0c [2020-11-29 23:35:38,414 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 23:35:38,449 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 23:35:38,452 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 23:35:38,454 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 23:35:38,455 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 23:35:38,456 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-29 23:35:38,530 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/be6a4c5d1/29fbdac2f8b4414cb8c14fb1dfbb3072/FLAG015b9b37b [2020-11-29 23:35:39,067 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 23:35:39,068 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2020-11-29 23:35:39,082 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/be6a4c5d1/29fbdac2f8b4414cb8c14fb1dfbb3072/FLAG015b9b37b [2020-11-29 23:35:39,455 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/data/be6a4c5d1/29fbdac2f8b4414cb8c14fb1dfbb3072 [2020-11-29 23:35:39,458 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 23:35:39,460 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 23:35:39,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:39,465 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 23:35:39,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 23:35:39,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,476 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cadd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39, skipping insertion in model container [2020-11-29 23:35:39,476 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 23:35:39,501 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 23:35:39,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:39,765 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 23:35:39,833 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 23:35:39,853 INFO L208 MainTranslator]: Completed translation [2020-11-29 23:35:39,855 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39 WrapperNode [2020-11-29 23:35:39,855 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 23:35:39,857 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:39,857 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 23:35:39,858 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 23:35:39,872 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,940 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 23:35:39,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 23:35:39,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 23:35:39,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 23:35:39,952 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,957 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,958 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... [2020-11-29 23:35:39,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 23:35:39,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 23:35:39,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 23:35:39,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 23:35:39,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 23:35:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2020-11-29 23:35:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 23:35:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 23:35:40,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 23:35:40,050 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 23:35:40,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 23:35:40,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 23:35:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-11-29 23:35:40,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 23:35:40,611 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 23:35:40,611 INFO L298 CfgBuilder]: Removed 18 assume(true) statements. [2020-11-29 23:35:40,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:40 BoogieIcfgContainer [2020-11-29 23:35:40,613 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 23:35:40,614 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 23:35:40,614 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 23:35:40,617 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 23:35:40,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 11:35:39" (1/3) ... [2020-11-29 23:35:40,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec37a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:35:40, skipping insertion in model container [2020-11-29 23:35:40,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 11:35:39" (2/3) ... [2020-11-29 23:35:40,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ec37a4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 11:35:40, skipping insertion in model container [2020-11-29 23:35:40,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:40" (3/3) ... [2020-11-29 23:35:40,620 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2020-11-29 23:35:40,633 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 23:35:40,636 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 23:35:40,646 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 23:35:40,670 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 23:35:40,670 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 23:35:40,670 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 23:35:40,670 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 23:35:40,670 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 23:35:40,670 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 23:35:40,670 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 23:35:40,671 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 23:35:40,682 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-11-29 23:35:40,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 23:35:40,687 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:40,688 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:40,688 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:40,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:40,693 INFO L82 PathProgramCache]: Analyzing trace with hash 166132434, now seen corresponding path program 1 times [2020-11-29 23:35:40,704 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:35:40,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1114140578] [2020-11-29 23:35:40,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-11-29 23:35:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:40,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 23:35:40,934 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:40,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:40,956 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:35:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:40,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1114140578] [2020-11-29 23:35:40,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:40,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 23:35:40,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860637932] [2020-11-29 23:35:40,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 23:35:40,969 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:35:40,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 23:35:40,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:35:40,988 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-11-29 23:35:41,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:41,009 INFO L93 Difference]: Finished difference Result 47 states and 71 transitions. [2020-11-29 23:35:41,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 23:35:41,010 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 11 [2020-11-29 23:35:41,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:41,020 INFO L225 Difference]: With dead ends: 47 [2020-11-29 23:35:41,021 INFO L226 Difference]: Without dead ends: 21 [2020-11-29 23:35:41,025 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 23:35:41,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-11-29 23:35:41,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-11-29 23:35:41,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-11-29 23:35:41,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2020-11-29 23:35:41,064 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2020-11-29 23:35:41,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:41,064 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2020-11-29 23:35:41,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 23:35:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2020-11-29 23:35:41,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 23:35:41,066 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:41,066 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:41,286 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 23:35:41,286 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:41,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:41,287 INFO L82 PathProgramCache]: Analyzing trace with hash 786053359, now seen corresponding path program 1 times [2020-11-29 23:35:41,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:35:41,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [164240167] [2020-11-29 23:35:41,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-11-29 23:35:41,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:41,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 11 conjunts are in the unsatisfiable core [2020-11-29 23:35:41,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:41,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:41,585 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:35:42,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:42,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [164240167] [2020-11-29 23:35:42,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:42,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-11-29 23:35:42,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767996823] [2020-11-29 23:35:42,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-29 23:35:42,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:35:42,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-29 23:35:42,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-11-29 23:35:42,367 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 10 states. [2020-11-29 23:35:43,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:43,239 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2020-11-29 23:35:43,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 23:35:43,240 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 12 [2020-11-29 23:35:43,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:43,241 INFO L225 Difference]: With dead ends: 27 [2020-11-29 23:35:43,241 INFO L226 Difference]: Without dead ends: 20 [2020-11-29 23:35:43,242 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-11-29 23:35:43,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-11-29 23:35:43,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-11-29 23:35:43,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-11-29 23:35:43,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2020-11-29 23:35:43,246 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2020-11-29 23:35:43,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:43,247 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2020-11-29 23:35:43,247 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-29 23:35:43,247 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2020-11-29 23:35:43,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 23:35:43,248 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 23:35:43,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 23:35:43,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 23:35:43,458 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 23:35:43,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 23:35:43,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1398618101, now seen corresponding path program 1 times [2020-11-29 23:35:43,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 23:35:43,459 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864631671] [2020-11-29 23:35:43,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-11-29 23:35:43,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 23:35:43,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 23:35:43,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 23:35:43,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:43,835 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 23:35:44,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-29 23:35:44,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [864631671] [2020-11-29 23:35:44,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 23:35:44,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 9 [2020-11-29 23:35:44,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400890752] [2020-11-29 23:35:44,044 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 23:35:44,044 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 23:35:44,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 23:35:44,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-11-29 23:35:44,045 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand 9 states. [2020-11-29 23:35:44,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 23:35:44,363 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2020-11-29 23:35:44,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 23:35:44,367 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-11-29 23:35:44,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 23:35:44,367 INFO L225 Difference]: With dead ends: 20 [2020-11-29 23:35:44,368 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 23:35:44,368 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-29 23:35:44,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 23:35:44,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 23:35:44,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 23:35:44,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 23:35:44,369 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-11-29 23:35:44,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 23:35:44,369 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 23:35:44,369 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 23:35:44,369 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 23:35:44,369 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 23:35:44,570 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 23:35:44,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 23:35:44,726 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 23:35:44,726 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 23:35:44,726 INFO L274 CegarLoopResult]: For program point L32(lines 32 60) no Hoare annotation was computed. [2020-11-29 23:35:44,726 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 23:35:44,726 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L270 CegarLoopResult]: At program point L61(lines 19 62) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_trunc_double_#res|)) [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point L24-1(lines 24 29) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L270 CegarLoopResult]: At program point L24-2(lines 24 29) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x))) [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point L24-3(lines 24 29) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point L49(lines 49 60) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point L41-1(lines 41 47) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L270 CegarLoopResult]: At program point L41-2(lines 41 47) the Hoare annotation is: false [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point L33(lines 33 48) no Hoare annotation was computed. [2020-11-29 23:35:44,727 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 23:35:44,728 INFO L274 CegarLoopResult]: For program point L54-1(lines 54 59) no Hoare annotation was computed. [2020-11-29 23:35:44,728 INFO L270 CegarLoopResult]: At program point L54-2(lines 54 59) the Hoare annotation is: false [2020-11-29 23:35:44,728 INFO L274 CegarLoopResult]: For program point L54-3(lines 32 60) no Hoare annotation was computed. [2020-11-29 23:35:44,728 INFO L274 CegarLoopResult]: For program point L50(lines 50 52) no Hoare annotation was computed. [2020-11-29 23:35:44,728 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (= (fp.div currentRoundingMode (_ +zero 11 53) (_ +zero 11 53)) ULTIMATE.start_trunc_double_~x) (= currentRoundingMode roundNearestTiesToEven) (= (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 11 53) (_ +zero 11 53)))) (fp.add roundNearestTiesToEven .cse0 .cse0)) |ULTIMATE.start_trunc_double_#res|) (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|)) [2020-11-29 23:35:44,728 INFO L274 CegarLoopResult]: For program point L75(lines 75 78) no Hoare annotation was computed. [2020-11-29 23:35:44,728 INFO L274 CegarLoopResult]: For program point L34-1(lines 34 39) no Hoare annotation was computed. [2020-11-29 23:35:44,728 INFO L270 CegarLoopResult]: At program point L34-2(lines 34 39) the Hoare annotation is: false [2020-11-29 23:35:44,728 INFO L277 CegarLoopResult]: At program point L80(lines 64 81) the Hoare annotation is: true [2020-11-29 23:35:44,738 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,739 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 23:35:44,740 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,741 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,742 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 23:35:44,742 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,743 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,744 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,744 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,744 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,745 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,746 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,746 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,747 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,751 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,752 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,753 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,755 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 11:35:44 BoogieIcfgContainer [2020-11-29 23:35:44,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 23:35:44,756 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 23:35:44,756 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 23:35:44,756 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 23:35:44,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 11:35:40" (3/4) ... [2020-11-29 23:35:44,759 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 23:35:44,769 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2020-11-29 23:35:44,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 23:35:44,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 23:35:44,770 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 23:35:44,793 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) [2020-11-29 23:35:44,794 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result [2020-11-29 23:35:44,795 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result [2020-11-29 23:35:44,815 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_27a9fb3c-8326-4450-a891-03b2ce17b40a/bin/uautomizer/witness.graphml [2020-11-29 23:35:44,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 23:35:44,817 INFO L168 Benchmark]: Toolchain (without parser) took 5356.36 ms. Allocated memory was 54.5 MB in the beginning and 83.9 MB in the end (delta: 29.4 MB). Free memory was 33.4 MB in the beginning and 62.1 MB in the end (delta: -28.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:44,818 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory is still 36.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:44,819 INFO L168 Benchmark]: CACSL2BoogieTranslator took 391.14 ms. Allocated memory is still 54.5 MB. Free memory was 33.1 MB in the beginning and 37.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:44,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.99 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 37.4 MB in the beginning and 51.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:44,820 INFO L168 Benchmark]: Boogie Preprocessor took 36.60 ms. Allocated memory is still 69.2 MB. Free memory was 51.9 MB in the beginning and 50.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 23:35:44,820 INFO L168 Benchmark]: RCFGBuilder took 632.80 ms. Allocated memory is still 69.2 MB. Free memory was 50.2 MB in the beginning and 46.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:44,821 INFO L168 Benchmark]: TraceAbstraction took 4140.90 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 46.3 MB in the beginning and 65.6 MB in the end (delta: -19.3 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:44,821 INFO L168 Benchmark]: Witness Printer took 60.29 ms. Allocated memory is still 83.9 MB. Free memory was 64.9 MB in the beginning and 62.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 23:35:44,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 54.5 MB. Free memory is still 36.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 391.14 ms. Allocated memory is still 54.5 MB. Free memory was 33.1 MB in the beginning and 37.4 MB in the end (delta: -4.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.99 ms. Allocated memory was 54.5 MB in the beginning and 69.2 MB in the end (delta: 14.7 MB). Free memory was 37.4 MB in the beginning and 51.9 MB in the end (delta: -14.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 36.60 ms. Allocated memory is still 69.2 MB. Free memory was 51.9 MB in the beginning and 50.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 632.80 ms. Allocated memory is still 69.2 MB. Free memory was 50.2 MB in the beginning and 46.8 MB in the end (delta: 3.4 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 4140.90 ms. Allocated memory was 69.2 MB in the beginning and 83.9 MB in the end (delta: 14.7 MB). Free memory was 46.3 MB in the beginning and 65.6 MB in the end (delta: -19.3 MB). Peak memory consumption was 34.7 MB. Max. memory is 16.1 GB. * Witness Printer took 60.29 ms. Allocated memory is still 83.9 MB. Free memory was 64.9 MB in the beginning and 62.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation 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 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 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 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 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 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 * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 24]: Loop Invariant [2020-11-29 23:35:44,833 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,833 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 23:35:44,834 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,834 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,834 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-11-29 23:35:44,836 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.div~DOUBLE(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x) - InvariantResult [Line: 17]: Loop Invariant [2020-11-29 23:35:44,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,837 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,838 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,838 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,838 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,839 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,839 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result) && 1bv32 == \result - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant [2020-11-29 23:35:44,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,840 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,841 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,845 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,846 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-11-29 23:35:44,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-11-29 23:35:44,847 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) == x && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && ~fp.add~DOUBLE(~roundNearestTiesToEven, ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~DOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) == \result - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 SDtfs, 49 SDslu, 95 SDs, 0 SdLazy, 50 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 50 SyntacticMatches, 3 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 62 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 68 ConstructedInterpolants, 6 QuantifiedInterpolants, 4765 SizeOfPredicates, 17 NumberOfNonLiveVariables, 150 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...