./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.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_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 ....................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:59:25,373 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:59:25,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:59:25,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:59:25,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:59:25,458 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:59:25,460 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:59:25,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:59:25,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:59:25,466 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:59:25,468 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:59:25,469 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:59:25,470 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:59:25,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:59:25,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:59:25,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:59:25,479 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:59:25,480 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:59:25,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:59:25,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:59:25,487 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:59:25,488 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:59:25,490 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:59:25,491 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:59:25,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:59:25,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:59:25,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:59:25,497 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:59:25,498 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:59:25,499 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:59:25,500 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:59:25,501 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:59:25,502 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:59:25,503 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:59:25,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:59:25,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:59:25,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:59:25,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:59:25,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:59:25,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:59:25,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:59:25,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-11-29 21:59:25,535 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:59:25,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:59:25,536 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:59:25,537 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:59:25,537 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:59:25,537 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:59:25,538 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:59:25,538 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-29 21:59:25,538 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:59:25,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:59:25,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:59:25,539 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:59:25,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:59:25,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:59:25,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:59:25,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:59:25,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:59:25,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:59:25,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:59:25,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:59:25,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:59:25,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:59:25,543 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:59:25,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:59:25,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:59:25,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-29 21:59:25,544 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-29 21:59:25,544 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:59:25,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:59:25,544 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_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2020-11-29 21:59:25,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:59:25,873 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:59:25,877 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:59:25,878 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:59:25,881 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:59:25,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-29 21:59:25,962 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/55443980c/0acd5425a4204ffeb8e911b8d7f7c618/FLAGcb6be154d [2020-11-29 21:59:26,472 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:59:26,475 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-29 21:59:26,487 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/55443980c/0acd5425a4204ffeb8e911b8d7f7c618/FLAGcb6be154d [2020-11-29 21:59:26,827 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/55443980c/0acd5425a4204ffeb8e911b8d7f7c618 [2020-11-29 21:59:26,830 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:59:26,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:59:26,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:59:26,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:59:26,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:59:26,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:59:26" (1/1) ... [2020-11-29 21:59:26,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7644c5dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:26, skipping insertion in model container [2020-11-29 21:59:26,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:59:26" (1/1) ... [2020-11-29 21:59:26,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:59:26,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:59:27,088 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:59:27,097 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:59:27,132 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:59:27,156 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:59:27,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27 WrapperNode [2020-11-29 21:59:27,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:59:27,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:59:27,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:59:27,159 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:59:27,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,205 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:59:27,206 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:59:27,206 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:59:27,207 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:59:27,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,219 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,220 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,229 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,234 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,237 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... [2020-11-29 21:59:27,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:59:27,241 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:59:27,241 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:59:27,242 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:59:27,243 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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 21:59:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-29 21:59:27,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:59:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-11-29 21:59:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:59:27,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:59:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-29 21:59:27,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:59:27,904 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:59:27,904 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 21:59:27,906 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:27 BoogieIcfgContainer [2020-11-29 21:59:27,906 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:59:27,907 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:59:27,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:59:27,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:59:27,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:59:26" (1/3) ... [2020-11-29 21:59:27,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac0709c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:59:27, skipping insertion in model container [2020-11-29 21:59:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:27" (2/3) ... [2020-11-29 21:59:27,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ac0709c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:59:27, skipping insertion in model container [2020-11-29 21:59:27,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:27" (3/3) ... [2020-11-29 21:59:27,913 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2020-11-29 21:59:27,933 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:59:27,938 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:59:27,950 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:59:27,999 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:59:27,999 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:59:28,000 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:59:28,001 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:59:28,001 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:59:28,001 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:59:28,001 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:59:28,001 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:59:28,023 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 21:59:28,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 21:59:28,031 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:28,032 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:28,032 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:28,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:28,039 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-11-29 21:59:28,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:59:28,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1169251683] [2020-11-29 21:59:28,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:59:28,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:28,228 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 21:59:28,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1169251683] [2020-11-29 21:59:28,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:28,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-29 21:59:28,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187950082] [2020-11-29 21:59:28,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:59:28,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:59:28,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:59:28,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:59:28,248 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 21:59:28,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:28,264 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2020-11-29 21:59:28,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:59:28,265 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 21:59:28,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:28,275 INFO L225 Difference]: With dead ends: 63 [2020-11-29 21:59:28,275 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 21:59:28,278 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 21:59:28,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 21:59:28,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 21:59:28,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 21:59:28,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-11-29 21:59:28,313 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-11-29 21:59:28,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:28,313 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-11-29 21:59:28,313 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:59:28,314 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-11-29 21:59:28,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:59:28,314 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:28,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:28,315 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-29 21:59:28,315 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:28,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:28,316 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-11-29 21:59:28,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:59:28,317 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140790545] [2020-11-29 21:59:28,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:59:28,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:28,450 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 21:59:28,450 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140790545] [2020-11-29 21:59:28,451 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:28,451 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:59:28,451 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009344375] [2020-11-29 21:59:28,452 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:59:28,453 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:59:28,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:59:28,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:59:28,454 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 4 states. [2020-11-29 21:59:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:28,529 INFO L93 Difference]: Finished difference Result 53 states and 67 transitions. [2020-11-29 21:59:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:59:28,530 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-11-29 21:59:28,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:28,531 INFO L225 Difference]: With dead ends: 53 [2020-11-29 21:59:28,531 INFO L226 Difference]: Without dead ends: 44 [2020-11-29 21:59:28,532 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:59:28,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-11-29 21:59:28,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 31. [2020-11-29 21:59:28,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:59:28,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:59:28,539 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-11-29 21:59:28,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:28,539 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:59:28,540 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:59:28,540 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:59:28,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-29 21:59:28,540 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:28,541 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:28,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-29 21:59:28,541 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:28,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:28,542 INFO L82 PathProgramCache]: Analyzing trace with hash 502201410, now seen corresponding path program 1 times [2020-11-29 21:59:28,542 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:59:28,542 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535208825] [2020-11-29 21:59:28,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:59:28,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:28,612 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 21:59:28,613 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535208825] [2020-11-29 21:59:28,613 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:28,613 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:59:28,613 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825970708] [2020-11-29 21:59:28,614 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:59:28,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:59:28,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:59:28,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:59:28,615 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-11-29 21:59:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:28,678 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-11-29 21:59:28,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:59:28,680 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-11-29 21:59:28,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:28,681 INFO L225 Difference]: With dead ends: 55 [2020-11-29 21:59:28,681 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 21:59:28,682 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:59:28,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 21:59:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2020-11-29 21:59:28,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:59:28,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:59:28,708 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 12 [2020-11-29 21:59:28,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:28,708 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:59:28,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:59:28,708 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:59:28,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-29 21:59:28,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:28,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:28,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-29 21:59:28,710 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:28,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:28,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1951233721, now seen corresponding path program 1 times [2020-11-29 21:59:28,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:59:28,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55442801] [2020-11-29 21:59:28,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:59:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:28,799 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 21:59:28,799 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55442801] [2020-11-29 21:59:28,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:28,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:59:28,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668123655] [2020-11-29 21:59:28,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:59:28,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:59:28,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:59:28,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:59:28,801 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-11-29 21:59:28,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:28,872 INFO L93 Difference]: Finished difference Result 57 states and 71 transitions. [2020-11-29 21:59:28,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:59:28,879 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-11-29 21:59:28,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:28,879 INFO L225 Difference]: With dead ends: 57 [2020-11-29 21:59:28,880 INFO L226 Difference]: Without dead ends: 48 [2020-11-29 21:59:28,880 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:59:28,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-11-29 21:59:28,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 31. [2020-11-29 21:59:28,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:59:28,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:59:28,885 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 13 [2020-11-29 21:59:28,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:28,886 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:59:28,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:59:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:59:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:59:28,886 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:28,887 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:28,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-29 21:59:28,887 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:28,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:28,888 INFO L82 PathProgramCache]: Analyzing trace with hash -555760345, now seen corresponding path program 1 times [2020-11-29 21:59:28,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:59:28,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536437950] [2020-11-29 21:59:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:59:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:28,962 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 21:59:28,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536437950] [2020-11-29 21:59:28,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:28,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-29 21:59:28,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338263963] [2020-11-29 21:59:28,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:59:28,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-29 21:59:28,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:59:28,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:59:28,964 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 4 states. [2020-11-29 21:59:29,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:29,026 INFO L93 Difference]: Finished difference Result 55 states and 69 transitions. [2020-11-29 21:59:29,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:59:29,027 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-11-29 21:59:29,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:29,028 INFO L225 Difference]: With dead ends: 55 [2020-11-29 21:59:29,028 INFO L226 Difference]: Without dead ends: 46 [2020-11-29 21:59:29,029 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-29 21:59:29,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-29 21:59:29,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 31. [2020-11-29 21:59:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:59:29,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:59:29,034 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 14 [2020-11-29 21:59:29,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:29,035 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:59:29,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:59:29,035 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:59:29,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:59:29,036 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:29,036 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:29,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-29 21:59:29,036 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:29,037 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2020-11-29 21:59:29,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-29 21:59:29,037 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922236036] [2020-11-29 21:59:29,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-29 21:59:29,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:59:29,075 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:59:29,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-29 21:59:29,107 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-29 21:59:29,140 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-29 21:59:29,140 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-29 21:59:29,140 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-29 21:59:29,170 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:59:29 BoogieIcfgContainer [2020-11-29 21:59:29,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:59:29,171 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:59:29,171 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:59:29,171 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:59:29,172 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:27" (3/4) ... [2020-11-29 21:59:29,175 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-11-29 21:59:29,175 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:59:29,177 INFO L168 Benchmark]: Toolchain (without parser) took 2343.93 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 61.0 MB in the beginning and 58.8 MB in the end (delta: 2.2 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:29,178 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:59:29,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 323.60 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 67.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:29,179 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.31 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 65.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:59:29,180 INFO L168 Benchmark]: Boogie Preprocessor took 34.30 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 63.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:29,180 INFO L168 Benchmark]: RCFGBuilder took 664.62 ms. Allocated memory is still 90.2 MB. Free memory was 63.8 MB in the beginning and 43.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:29,181 INFO L168 Benchmark]: TraceAbstraction took 1262.96 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 42.8 MB in the beginning and 58.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:29,182 INFO L168 Benchmark]: Witness Printer took 4.30 ms. Allocated memory is still 109.1 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:59:29,185 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 90.2 MB. Free memory was 47.5 MB in the beginning and 47.5 MB in the end (delta: 39.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 323.60 ms. Allocated memory is still 90.2 MB. Free memory was 60.7 MB in the beginning and 67.3 MB in the end (delta: -6.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 47.31 ms. Allocated memory is still 90.2 MB. Free memory was 67.3 MB in the beginning and 65.5 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.30 ms. Allocated memory is still 90.2 MB. Free memory was 65.5 MB in the beginning and 63.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 664.62 ms. Allocated memory is still 90.2 MB. Free memory was 63.8 MB in the beginning and 43.5 MB in the end (delta: 20.3 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1262.96 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 42.8 MB in the beginning and 58.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.30 ms. Allocated memory is still 109.1 MB. Free memory is still 58.8 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 86, overapproximation of someUnaryDOUBLEoperation at line 81. Possible FailurePath: [L81] double x = -0.0; [L82] double y = 0.0; [L26] __uint32_t msw, lsw; [L29] ieee_double_shape_type ew_u; [L30] ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] (lsw) = ew_u.parts.lsw [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L49] return 0; [L54] COND TRUE __fpclassify_double(x) == 0 [L55] return y; [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L3] __assert_fail("0", "double_req_bl_1252a.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 251 SDtfs, 64 SDslu, 298 SDs, 0 SdLazy, 84 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 5 MinimizatonAttempts, 60 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 74 NumberOfCodeBlocks, 74 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 799 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 21:59:31,637 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-29 21:59:31,639 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-29 21:59:31,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-29 21:59:31,673 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-29 21:59:31,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-29 21:59:31,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-29 21:59:31,679 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-29 21:59:31,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-29 21:59:31,683 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-29 21:59:31,684 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-29 21:59:31,693 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-29 21:59:31,694 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-29 21:59:31,695 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-29 21:59:31,696 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-29 21:59:31,697 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-29 21:59:31,698 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-29 21:59:31,700 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-29 21:59:31,702 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-29 21:59:31,704 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-29 21:59:31,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-29 21:59:31,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-29 21:59:31,709 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-29 21:59:31,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-29 21:59:31,713 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-29 21:59:31,713 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-29 21:59:31,714 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-29 21:59:31,715 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-29 21:59:31,715 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-29 21:59:31,716 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-29 21:59:31,717 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-29 21:59:31,718 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-29 21:59:31,719 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-29 21:59:31,720 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-29 21:59:31,721 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-29 21:59:31,721 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-29 21:59:31,722 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-29 21:59:31,723 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-29 21:59:31,723 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-29 21:59:31,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-29 21:59:31,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-29 21:59:31,726 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-11-29 21:59:31,752 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-29 21:59:31,753 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-29 21:59:31,754 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-29 21:59:31,754 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-29 21:59:31,755 INFO L138 SettingsManager]: * Use SBE=true [2020-11-29 21:59:31,755 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-29 21:59:31,755 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-29 21:59:31,755 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-29 21:59:31,755 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-29 21:59:31,756 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-29 21:59:31,756 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-29 21:59:31,756 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-29 21:59:31,756 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-11-29 21:59:31,756 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-11-29 21:59:31,757 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-29 21:59:31,757 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-29 21:59:31,757 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-29 21:59:31,757 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-29 21:59:31,757 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-29 21:59:31,758 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-29 21:59:31,758 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-29 21:59:31,758 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-29 21:59:31,758 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-29 21:59:31,758 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-29 21:59:31,759 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-29 21:59:31,759 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-29 21:59:31,759 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-11-29 21:59:31,759 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-11-29 21:59:31,759 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-29 21:59:31,759 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-29 21:59:31,760 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-29 21:59:31,760 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_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23f3104f6bf674f4cf2d86feffb86c85d21d7d18 [2020-11-29 21:59:32,117 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-29 21:59:32,140 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-29 21:59:32,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-29 21:59:32,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-29 21:59:32,145 INFO L275 PluginConnector]: CDTParser initialized [2020-11-29 21:59:32,146 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-29 21:59:32,239 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/9618d59a0/0b62860b1593461eb4baf5360b7660b3/FLAGae2d02d34 [2020-11-29 21:59:32,747 INFO L306 CDTParser]: Found 1 translation units. [2020-11-29 21:59:32,748 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/sv-benchmarks/c/float-newlib/double_req_bl_1252a.c [2020-11-29 21:59:32,755 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/9618d59a0/0b62860b1593461eb4baf5360b7660b3/FLAGae2d02d34 [2020-11-29 21:59:33,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/data/9618d59a0/0b62860b1593461eb4baf5360b7660b3 [2020-11-29 21:59:33,119 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-29 21:59:33,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-29 21:59:33,126 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-29 21:59:33,126 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-29 21:59:33,131 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-29 21:59:33,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,140 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f62cf76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33, skipping insertion in model container [2020-11-29 21:59:33,140 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,149 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-29 21:59:33,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-29 21:59:33,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:59:33,457 INFO L203 MainTranslator]: Completed pre-run [2020-11-29 21:59:33,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-29 21:59:33,581 INFO L208 MainTranslator]: Completed translation [2020-11-29 21:59:33,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33 WrapperNode [2020-11-29 21:59:33,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-29 21:59:33,582 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-29 21:59:33,583 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-29 21:59:33,583 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-29 21:59:33,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,612 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,651 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-29 21:59:33,652 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-29 21:59:33,652 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-29 21:59:33,653 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-29 21:59:33,661 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,682 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,689 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... [2020-11-29 21:59:33,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-29 21:59:33,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-29 21:59:33,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-29 21:59:33,695 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-29 21:59:33,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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 21:59:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2020-11-29 21:59:33,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-11-29 21:59:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-29 21:59:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-11-29 21:59:33,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-29 21:59:33,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-29 21:59:33,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-29 21:59:34,369 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-29 21:59:34,370 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-11-29 21:59:34,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:34 BoogieIcfgContainer [2020-11-29 21:59:34,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-29 21:59:34,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-29 21:59:34,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-29 21:59:34,378 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-29 21:59:34,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 09:59:33" (1/3) ... [2020-11-29 21:59:34,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113dfeed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:59:34, skipping insertion in model container [2020-11-29 21:59:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 09:59:33" (2/3) ... [2020-11-29 21:59:34,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@113dfeed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 09:59:34, skipping insertion in model container [2020-11-29 21:59:34,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:34" (3/3) ... [2020-11-29 21:59:34,382 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1252a.c [2020-11-29 21:59:34,396 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-29 21:59:34,402 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-29 21:59:34,417 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-29 21:59:34,468 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-29 21:59:34,471 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-29 21:59:34,471 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-29 21:59:34,471 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-29 21:59:34,477 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-29 21:59:34,477 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-29 21:59:34,477 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-29 21:59:34,478 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-29 21:59:34,494 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-29 21:59:34,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-29 21:59:34,501 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:34,502 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:34,503 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:34,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:34,511 INFO L82 PathProgramCache]: Analyzing trace with hash -958075201, now seen corresponding path program 1 times [2020-11-29 21:59:34,524 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:34,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1100477617] [2020-11-29 21:59:34,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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 21:59:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:34,628 INFO L263 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjunts are in the unsatisfiable core [2020-11-29 21:59:34,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:34,648 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 21:59:34,649 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:34,653 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 21:59:34,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1100477617] [2020-11-29 21:59:34,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:34,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-11-29 21:59:34,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560600884] [2020-11-29 21:59:34,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-11-29 21:59:34,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:34,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-11-29 21:59:34,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:59:34,676 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-11-29 21:59:34,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:34,695 INFO L93 Difference]: Finished difference Result 63 states and 99 transitions. [2020-11-29 21:59:34,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-11-29 21:59:34,696 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-11-29 21:59:34,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:34,705 INFO L225 Difference]: With dead ends: 63 [2020-11-29 21:59:34,705 INFO L226 Difference]: Without dead ends: 29 [2020-11-29 21:59:34,708 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-11-29 21:59:34,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-29 21:59:34,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2020-11-29 21:59:34,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2020-11-29 21:59:34,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 40 transitions. [2020-11-29 21:59:34,748 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 40 transitions. Word has length 10 [2020-11-29 21:59:34,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:34,749 INFO L481 AbstractCegarLoop]: Abstraction has 29 states and 40 transitions. [2020-11-29 21:59:34,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-11-29 21:59:34,749 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2020-11-29 21:59:34,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-11-29 21:59:34,750 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:34,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:34,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-11-29 21:59:34,975 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:34,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:34,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1001584898, now seen corresponding path program 1 times [2020-11-29 21:59:34,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:34,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [155622505] [2020-11-29 21:59:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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 21:59:35,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:35,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:59:35,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:35,100 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 21:59:35,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:35,130 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 21:59:35,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [155622505] [2020-11-29 21:59:35,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:35,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 21:59:35,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866059581] [2020-11-29 21:59:35,132 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:59:35,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:35,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:59:35,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:59:35,136 INFO L87 Difference]: Start difference. First operand 29 states and 40 transitions. Second operand 6 states. [2020-11-29 21:59:35,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:35,274 INFO L93 Difference]: Finished difference Result 68 states and 85 transitions. [2020-11-29 21:59:35,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:59:35,277 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-11-29 21:59:35,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:35,278 INFO L225 Difference]: With dead ends: 68 [2020-11-29 21:59:35,278 INFO L226 Difference]: Without dead ends: 59 [2020-11-29 21:59:35,279 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:59:35,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-11-29 21:59:35,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 31. [2020-11-29 21:59:35,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-11-29 21:59:35,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-11-29 21:59:35,287 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-11-29 21:59:35,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:35,287 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-11-29 21:59:35,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:59:35,287 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-11-29 21:59:35,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-29 21:59:35,288 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:35,288 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:35,509 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-11-29 21:59:35,510 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:35,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:35,511 INFO L82 PathProgramCache]: Analyzing trace with hash 1219247017, now seen corresponding path program 1 times [2020-11-29 21:59:35,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:35,512 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1644969913] [2020-11-29 21:59:35,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/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 21:59:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:35,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 21:59:35,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:35,696 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 21:59:35,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:35,722 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-29 21:59:35,793 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 21:59:35,794 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1644969913] [2020-11-29 21:59:35,794 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:35,794 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 21:59:35,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536997480] [2020-11-29 21:59:35,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:59:35,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:35,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:59:35,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:59:35,796 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 6 states. [2020-11-29 21:59:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:35,952 INFO L93 Difference]: Finished difference Result 52 states and 69 transitions. [2020-11-29 21:59:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-29 21:59:35,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-11-29 21:59:35,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:35,954 INFO L225 Difference]: With dead ends: 52 [2020-11-29 21:59:35,954 INFO L226 Difference]: Without dead ends: 28 [2020-11-29 21:59:35,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-11-29 21:59:35,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-11-29 21:59:35,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-11-29 21:59:35,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-11-29 21:59:35,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2020-11-29 21:59:35,960 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 14 [2020-11-29 21:59:35,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:35,960 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2020-11-29 21:59:35,960 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:59:35,960 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2020-11-29 21:59:35,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-11-29 21:59:35,961 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:35,961 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:36,182 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-11-29 21:59:36,182 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:36,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:36,184 INFO L82 PathProgramCache]: Analyzing trace with hash 1012446717, now seen corresponding path program 1 times [2020-11-29 21:59:36,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:36,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1092641022] [2020-11-29 21:59:36,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-11-29 21:59:36,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:36,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2020-11-29 21:59:36,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:36,323 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 21:59:36,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:36,376 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 21:59:36,376 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1092641022] [2020-11-29 21:59:36,376 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:36,376 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-11-29 21:59:36,376 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473610242] [2020-11-29 21:59:36,377 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-29 21:59:36,377 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:36,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-29 21:59:36,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-29 21:59:36,378 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 6 states. [2020-11-29 21:59:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:36,653 INFO L93 Difference]: Finished difference Result 65 states and 76 transitions. [2020-11-29 21:59:36,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-29 21:59:36,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2020-11-29 21:59:36,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:36,656 INFO L225 Difference]: With dead ends: 65 [2020-11-29 21:59:36,657 INFO L226 Difference]: Without dead ends: 56 [2020-11-29 21:59:36,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:59:36,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-11-29 21:59:36,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 30. [2020-11-29 21:59:36,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 21:59:36,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-11-29 21:59:36,667 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 16 [2020-11-29 21:59:36,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:36,668 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-11-29 21:59:36,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-29 21:59:36,668 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-11-29 21:59:36,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 21:59:36,672 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:36,672 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:36,883 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-11-29 21:59:36,884 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:36,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:36,884 INFO L82 PathProgramCache]: Analyzing trace with hash -414082333, now seen corresponding path program 1 times [2020-11-29 21:59:36,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:36,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [320878077] [2020-11-29 21:59:36,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-11-29 21:59:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:36,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-29 21:59:36,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:37,032 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 21:59:37,032 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:37,082 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 21:59:37,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [320878077] [2020-11-29 21:59:37,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:37,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2020-11-29 21:59:37,083 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760633288] [2020-11-29 21:59:37,083 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-29 21:59:37,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:37,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-29 21:59:37,084 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:59:37,084 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 4 states. [2020-11-29 21:59:37,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:37,104 INFO L93 Difference]: Finished difference Result 40 states and 47 transitions. [2020-11-29 21:59:37,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-29 21:59:37,105 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-11-29 21:59:37,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:37,106 INFO L225 Difference]: With dead ends: 40 [2020-11-29 21:59:37,106 INFO L226 Difference]: Without dead ends: 30 [2020-11-29 21:59:37,107 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-11-29 21:59:37,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-11-29 21:59:37,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-11-29 21:59:37,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-11-29 21:59:37,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 36 transitions. [2020-11-29 21:59:37,112 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 36 transitions. Word has length 18 [2020-11-29 21:59:37,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:37,112 INFO L481 AbstractCegarLoop]: Abstraction has 30 states and 36 transitions. [2020-11-29 21:59:37,112 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-29 21:59:37,112 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 36 transitions. [2020-11-29 21:59:37,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-11-29 21:59:37,113 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:37,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:37,326 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-11-29 21:59:37,326 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:37,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:37,327 INFO L82 PathProgramCache]: Analyzing trace with hash -356824031, now seen corresponding path program 1 times [2020-11-29 21:59:37,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:37,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [12629365] [2020-11-29 21:59:37,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-11-29 21:59:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:37,447 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 8 conjunts are in the unsatisfiable core [2020-11-29 21:59:37,448 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:37,526 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 21:59:37,526 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:37,582 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 21:59:37,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [12629365] [2020-11-29 21:59:37,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:37,582 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-11-29 21:59:37,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037194668] [2020-11-29 21:59:37,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-29 21:59:37,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:37,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-29 21:59:37,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-11-29 21:59:37,584 INFO L87 Difference]: Start difference. First operand 30 states and 36 transitions. Second operand 9 states. [2020-11-29 21:59:37,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:37,709 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2020-11-29 21:59:37,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-29 21:59:37,710 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 18 [2020-11-29 21:59:37,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:37,710 INFO L225 Difference]: With dead ends: 42 [2020-11-29 21:59:37,710 INFO L226 Difference]: Without dead ends: 39 [2020-11-29 21:59:37,711 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2020-11-29 21:59:37,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2020-11-29 21:59:37,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 32. [2020-11-29 21:59:37,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-11-29 21:59:37,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2020-11-29 21:59:37,718 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 18 [2020-11-29 21:59:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:37,718 INFO L481 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2020-11-29 21:59:37,718 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-29 21:59:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2020-11-29 21:59:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-29 21:59:37,719 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:37,719 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:37,931 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-11-29 21:59:37,931 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:37,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:37,932 INFO L82 PathProgramCache]: Analyzing trace with hash -208358251, now seen corresponding path program 1 times [2020-11-29 21:59:37,932 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:37,933 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1304015087] [2020-11-29 21:59:37,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-11-29 21:59:38,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:38,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 9 conjunts are in the unsatisfiable core [2020-11-29 21:59:38,062 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:38,152 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 21:59:38,152 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:38,248 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 21:59:38,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1304015087] [2020-11-29 21:59:38,248 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:38,248 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-11-29 21:59:38,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315503360] [2020-11-29 21:59:38,249 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-29 21:59:38,249 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:38,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-29 21:59:38,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-11-29 21:59:38,250 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 8 states. [2020-11-29 21:59:38,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:38,412 INFO L93 Difference]: Finished difference Result 45 states and 50 transitions. [2020-11-29 21:59:38,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-29 21:59:38,417 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 19 [2020-11-29 21:59:38,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:38,418 INFO L225 Difference]: With dead ends: 45 [2020-11-29 21:59:38,418 INFO L226 Difference]: Without dead ends: 27 [2020-11-29 21:59:38,418 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-29 21:59:38,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2020-11-29 21:59:38,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2020-11-29 21:59:38,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2020-11-29 21:59:38,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2020-11-29 21:59:38,423 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 19 [2020-11-29 21:59:38,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:38,423 INFO L481 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2020-11-29 21:59:38,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-29 21:59:38,424 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2020-11-29 21:59:38,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-11-29 21:59:38,424 INFO L414 BasicCegarLoop]: Found error trace [2020-11-29 21:59:38,424 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-29 21:59:38,649 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-11-29 21:59:38,649 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-29 21:59:38,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-29 21:59:38,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1524231306, now seen corresponding path program 1 times [2020-11-29 21:59:38,650 INFO L162 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-11-29 21:59:38,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [824427805] [2020-11-29 21:59:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-11-29 21:59:38,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-29 21:59:38,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 15 conjunts are in the unsatisfiable core [2020-11-29 21:59:38,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-29 21:59:38,890 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-29 21:59:38,931 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 21:59:38,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-29 21:59:39,255 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 21:59:39,256 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [824427805] [2020-11-29 21:59:39,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-11-29 21:59:39,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 16 [2020-11-29 21:59:39,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994265162] [2020-11-29 21:59:39,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-29 21:59:39,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-11-29 21:59:39,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-29 21:59:39,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2020-11-29 21:59:39,258 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 16 states. [2020-11-29 21:59:39,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-29 21:59:39,599 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2020-11-29 21:59:39,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-29 21:59:39,600 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 22 [2020-11-29 21:59:39,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-29 21:59:39,601 INFO L225 Difference]: With dead ends: 27 [2020-11-29 21:59:39,601 INFO L226 Difference]: Without dead ends: 0 [2020-11-29 21:59:39,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=104, Invalid=358, Unknown=0, NotChecked=0, Total=462 [2020-11-29 21:59:39,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-29 21:59:39,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-29 21:59:39,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-29 21:59:39,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-29 21:59:39,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-11-29 21:59:39,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-29 21:59:39,602 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-29 21:59:39,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-29 21:59:39,602 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-29 21:59:39,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-29 21:59:39,803 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-11-29 21:59:39,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-29 21:59:40,220 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-11-29 21:59:40,220 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-11-29 21:59:40,220 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-29 21:59:40,220 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-29 21:59:40,220 INFO L274 CegarLoopResult]: For program point L28-1(lines 28 33) no Hoare annotation was computed. [2020-11-29 21:59:40,221 INFO L270 CegarLoopResult]: At program point L28-2(lines 28 33) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= .cse0 ULTIMATE.start_fmax_double_~x))) [2020-11-29 21:59:40,221 INFO L274 CegarLoopResult]: For program point L28-3(lines 25 50) no Hoare annotation was computed. [2020-11-29 21:59:40,221 INFO L274 CegarLoopResult]: For program point L28-5(lines 28 33) no Hoare annotation was computed. [2020-11-29 21:59:40,221 INFO L270 CegarLoopResult]: At program point L28-6(lines 28 33) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-11-29 21:59:40,221 INFO L274 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-11-29 21:59:40,221 INFO L274 CegarLoopResult]: For program point L28-7(lines 25 50) no Hoare annotation was computed. [2020-11-29 21:59:40,221 INFO L274 CegarLoopResult]: For program point L86-2(lines 86 89) no Hoare annotation was computed. [2020-11-29 21:59:40,221 INFO L274 CegarLoopResult]: For program point L45(lines 45 49) no Hoare annotation was computed. [2020-11-29 21:59:40,222 INFO L274 CegarLoopResult]: For program point L45-1(lines 45 49) no Hoare annotation was computed. [2020-11-29 21:59:40,222 INFO L274 CegarLoopResult]: For program point L54(lines 54 55) no Hoare annotation was computed. [2020-11-29 21:59:40,222 INFO L270 CegarLoopResult]: At program point L71(lines 62 72) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) |ULTIMATE.start_main_#t~short18| (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (exists ((v_skolemized_v_prenex_5_3 (_ BitVec 64))) (and (= (fp ((_ extract 63 63) v_skolemized_v_prenex_5_3) ((_ extract 62 52) v_skolemized_v_prenex_5_3) ((_ extract 51 0) v_skolemized_v_prenex_5_3)) (_ +zero 11 53)) (= ULTIMATE.start___signbit_double_~msw~1 ((_ extract 63 32) v_skolemized_v_prenex_5_3)))) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (= |ULTIMATE.start___signbit_double_#res| (_ bv0 32)) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-11-29 21:59:40,222 INFO L274 CegarLoopResult]: For program point L38(lines 38 49) no Hoare annotation was computed. [2020-11-29 21:59:40,222 INFO L274 CegarLoopResult]: For program point L38-1(lines 38 49) no Hoare annotation was computed. [2020-11-29 21:59:40,222 INFO L274 CegarLoopResult]: For program point L56(lines 56 57) no Hoare annotation was computed. [2020-11-29 21:59:40,223 INFO L274 CegarLoopResult]: For program point L65-1(lines 65 69) no Hoare annotation was computed. [2020-11-29 21:59:40,223 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-11-29 21:59:40,224 INFO L270 CegarLoopResult]: At program point L65-2(lines 65 69) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) |ULTIMATE.start_main_#t~short18| (= (_ +zero 11 53) ULTIMATE.start_main_~res~0) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (= ULTIMATE.start___signbit_double_~x (_ +zero 11 53))) [2020-11-29 21:59:40,224 INFO L274 CegarLoopResult]: For program point L65-3(lines 65 69) no Hoare annotation was computed. [2020-11-29 21:59:40,224 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-29 21:59:40,224 INFO L270 CegarLoopResult]: At program point L49(lines 25 50) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 11 53)))) (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (and (= ((_ extract 63 32) v_skolemized_v_prenex_1_3) ULTIMATE.start___fpclassify_double_~msw~0) (= (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3)) (fp.neg (_ +zero 11 53))))) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= ULTIMATE.start___fpclassify_double_~x .cse0) (= .cse0 ULTIMATE.start_fmax_double_~x) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|)))) [2020-11-29 21:59:40,224 INFO L270 CegarLoopResult]: At program point L49-1(lines 25 50) the Hoare annotation is: (and (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x) (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_double_#res|))) [2020-11-29 21:59:40,224 INFO L274 CegarLoopResult]: For program point L41(lines 41 49) no Hoare annotation was computed. [2020-11-29 21:59:40,225 INFO L274 CegarLoopResult]: For program point L41-1(lines 41 49) no Hoare annotation was computed. [2020-11-29 21:59:40,225 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-29 21:59:40,225 INFO L277 CegarLoopResult]: At program point L91(lines 74 92) the Hoare annotation is: true [2020-11-29 21:59:40,225 INFO L274 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-11-29 21:59:40,225 INFO L274 CegarLoopResult]: For program point L59-2(line 59) no Hoare annotation was computed. [2020-11-29 21:59:40,225 INFO L270 CegarLoopResult]: At program point L59-3(lines 52 60) the Hoare annotation is: (and (= (_ +zero 11 53) |ULTIMATE.start_fmax_double_#res|) (= (_ +zero 11 53) ULTIMATE.start_fmax_double_~y) (= (fp.neg (_ +zero 11 53)) ULTIMATE.start_fmax_double_~x) (exists ((|v_skolemized_q#valueAsBitvector_7| (_ BitVec 64))) (and (= ((_ extract 63 32) |v_skolemized_q#valueAsBitvector_7|) ULTIMATE.start___fpclassify_double_~msw~0) (= (_ +zero 11 53) (fp ((_ extract 63 63) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 62 52) |v_skolemized_q#valueAsBitvector_7|) ((_ extract 51 0) |v_skolemized_q#valueAsBitvector_7|))))) (= (_ +zero 11 53) ULTIMATE.start___fpclassify_double_~x)) [2020-11-29 21:59:40,235 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,236 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,245 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,246 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,246 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,246 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,248 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,249 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,250 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,253 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,254 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,266 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,267 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,268 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,269 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,270 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,271 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,271 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,272 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,272 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,272 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,272 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,273 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,273 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 09:59:40 BoogieIcfgContainer [2020-11-29 21:59:40,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-29 21:59:40,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-29 21:59:40,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-29 21:59:40,277 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-29 21:59:40,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 09:59:34" (3/4) ... [2020-11-29 21:59:40,280 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-29 21:59:40,294 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-11-29 21:59:40,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-11-29 21:59:40,295 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-29 21:59:40,296 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-29 21:59:40,323 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\exists v_skolemized_v_prenex_1_3 : bv64 :: v_skolemized_v_prenex_1_3[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == y) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && !(0bv32 == \result) [2020-11-29 21:59:40,324 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x [2020-11-29 21:59:40,325 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() [2020-11-29 21:59:40,326 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && (\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~Pluszero~LONGDOUBLE() && msw == v_skolemized_v_prenex_5_3[63:32])) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() [2020-11-29 21:59:40,327 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result) [2020-11-29 21:59:40,373 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4cb3ff91-903d-4554-8cf7-159dedf9a8f2/bin/uautomizer/witness.graphml [2020-11-29 21:59:40,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-29 21:59:40,376 INFO L168 Benchmark]: Toolchain (without parser) took 7252.73 ms. Allocated memory was 60.8 MB in the beginning and 107.0 MB in the end (delta: 46.1 MB). Free memory was 41.1 MB in the beginning and 71.2 MB in the end (delta: -30.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:40,376 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 42.6 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:59:40,377 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.79 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 44.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:40,378 INFO L168 Benchmark]: Boogie Procedure Inliner took 68.82 ms. Allocated memory is still 60.8 MB. Free memory was 44.1 MB in the beginning and 42.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:40,378 INFO L168 Benchmark]: Boogie Preprocessor took 41.67 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 40.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-29 21:59:40,378 INFO L168 Benchmark]: RCFGBuilder took 677.48 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 40.6 MB in the beginning and 62.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:40,379 INFO L168 Benchmark]: TraceAbstraction took 5902.26 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 61.6 MB in the beginning and 75.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:40,380 INFO L168 Benchmark]: Witness Printer took 97.03 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 71.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-29 21:59:40,382 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 60.8 MB. Free memory was 42.6 MB in the beginning and 42.6 MB in the end (delta: 33.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 455.79 ms. Allocated memory is still 60.8 MB. Free memory was 40.8 MB in the beginning and 44.3 MB in the end (delta: -3.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 68.82 ms. Allocated memory is still 60.8 MB. Free memory was 44.1 MB in the beginning and 42.3 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.67 ms. Allocated memory is still 60.8 MB. Free memory was 42.3 MB in the beginning and 40.6 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 677.48 ms. Allocated memory was 60.8 MB in the beginning and 86.0 MB in the end (delta: 25.2 MB). Free memory was 40.6 MB in the beginning and 62.0 MB in the end (delta: -21.3 MB). Peak memory consumption was 17.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5902.26 ms. Allocated memory was 86.0 MB in the beginning and 107.0 MB in the end (delta: 21.0 MB). Free memory was 61.6 MB in the beginning and 75.4 MB in the end (delta: -13.8 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. * Witness Printer took 97.03 ms. Allocated memory is still 107.0 MB. Free memory was 75.4 MB in the beginning and 71.2 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 65]: Loop Invariant [2020-11-29 21:59:40,396 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,397 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 25]: Loop Invariant [2020-11-29 21:59:40,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,402 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,403 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && !(0bv32 == \result) - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: (~Pluszero~LONGDOUBLE() == y && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && ~Pluszero~LONGDOUBLE() == x - InvariantResult [Line: 25]: Loop Invariant [2020-11-29 21:59:40,407 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,408 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] [2020-11-29 21:59:40,409 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_1_3,QUANTIFIED] Derived loop invariant: ((((\exists v_skolemized_v_prenex_1_3 : bv64 :: v_skolemized_v_prenex_1_3[63:32] == msw && ~fp~LONGDOUBLE(v_skolemized_v_prenex_1_3[63:63], v_skolemized_v_prenex_1_3[62:52], v_skolemized_v_prenex_1_3[51:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~Pluszero~LONGDOUBLE() == y) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && !(0bv32 == \result) - InvariantResult [Line: 62]: Loop Invariant [2020-11-29 21:59:40,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,411 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,412 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,414 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_v_prenex_5_3,QUANTIFIED] [2020-11-29 21:59:40,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,415 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,416 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,417 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: ((((((((~Pluszero~LONGDOUBLE() == \result && aux-res == 0.0 && __signbit_double(res) == 0-aux) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == y) && (\exists v_skolemized_v_prenex_5_3 : bv64 :: ~fp~LONGDOUBLE(v_skolemized_v_prenex_5_3[63:63], v_skolemized_v_prenex_5_3[62:52], v_skolemized_v_prenex_5_3[51:0]) == ~Pluszero~LONGDOUBLE() && msw == v_skolemized_v_prenex_5_3[63:32])) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && \result == 0bv32) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x) && x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 52]: Loop Invariant [2020-11-29 21:59:40,418 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,419 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] [2020-11-29 21:59:40,420 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_skolemized_q#valueAsBitvector_7,QUANTIFIED] Derived loop invariant: (((~Pluszero~LONGDOUBLE() == \result && ~Pluszero~LONGDOUBLE() == y) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x) && (\exists v_skolemized_q#valueAsBitvector_7 : bv64 :: v_skolemized_q#valueAsBitvector_7[63:32] == msw && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(v_skolemized_q#valueAsBitvector_7[63:63], v_skolemized_q#valueAsBitvector_7[62:52], v_skolemized_q#valueAsBitvector_7[51:0]))) && ~Pluszero~LONGDOUBLE() == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.3s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 252 SDtfs, 287 SDslu, 527 SDs, 0 SdLazy, 183 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 257 GetRequests, 196 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 8 MinimizatonAttempts, 61 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 16 NumberOfFragments, 205 HoareAnnotationTreeSize, 8 FomulaSimplifications, 47 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 8 FomulaSimplificationsInter, 35 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 240 ConstructedInterpolants, 32 QuantifiedInterpolants, 18200 SizeOfPredicates, 38 NumberOfNonLiveVariables, 555 ConjunctsInSsa, 55 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 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...