./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD --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 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 ....................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD --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 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:59:09,225 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:59:09,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:59:09,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:59:09,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:59:09,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:59:09,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:59:09,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:59:09,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:59:09,320 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:59:09,322 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:59:09,325 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:59:09,325 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:59:09,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:59:09,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:59:09,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:59:09,344 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:59:09,346 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:59:09,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:59:09,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:59:09,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:59:09,370 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:59:09,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:59:09,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:59:09,387 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:59:09,388 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:59:09,389 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:59:09,391 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:59:09,392 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:59:09,394 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:59:09,395 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:59:09,396 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:59:09,399 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:59:09,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:59:09,403 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:59:09,404 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:59:09,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:59:09,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:59:09,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:59:09,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:59:09,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:59:09,410 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 23:59:09,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:59:09,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:59:09,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:59:09,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:59:09,473 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:59:09,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:59:09,474 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:59:09,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:59:09,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:59:09,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:59:09,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:59:09,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:59:09,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:59:09,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:59:09,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:59:09,478 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:59:09,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:59:09,479 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:59:09,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:59:09,479 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:59:09,480 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:59:09,480 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:59:09,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:09,480 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:59:09,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:59:09,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:59:09,481 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:59:09,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 23:59:09,482 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:59:09,482 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:59:09,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:59:09,483 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:59:09,483 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_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2021-10-28 23:59:09,856 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:59:09,882 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:59:09,885 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:59:09,887 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:59:09,888 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:59:09,889 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-28 23:59:09,969 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/8cfcb89cd/482c9d3d7d164fde930388ad9936a921/FLAGdceeecfba [2021-10-28 23:59:10,574 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:59:10,575 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-28 23:59:10,583 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/8cfcb89cd/482c9d3d7d164fde930388ad9936a921/FLAGdceeecfba [2021-10-28 23:59:10,917 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/8cfcb89cd/482c9d3d7d164fde930388ad9936a921 [2021-10-28 23:59:10,921 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:59:10,923 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:59:10,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:10,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:59:10,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:59:10,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:10" (1/1) ... [2021-10-28 23:59:10,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67035fef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:10, skipping insertion in model container [2021-10-28 23:59:10,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:10" (1/1) ... [2021-10-28 23:59:10,945 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:59:10,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:11,222 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-28 23:59:11,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:11,235 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:59:11,288 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-28 23:59:11,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:11,306 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:59:11,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11 WrapperNode [2021-10-28 23:59:11,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:11,308 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:11,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:59:11,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:59:11,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,332 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,390 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:11,391 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:59:11,391 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:59:11,391 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:59:11,412 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,417 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,417 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,439 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,452 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:59:11,453 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:59:11,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:59:11,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:59:11,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (1/1) ... [2021-10-28 23:59:11,463 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:11,487 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:11,502 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:11,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:59:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:59:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:59:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 23:59:11,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-28 23:59:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-28 23:59:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:59:11,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:59:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 23:59:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-28 23:59:11,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:59:12,236 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:59:12,236 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-28 23:59:12,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:12 BoogieIcfgContainer [2021-10-28 23:59:12,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:59:12,240 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:59:12,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:59:12,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:59:12,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:59:10" (1/3) ... [2021-10-28 23:59:12,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abbd308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:12, skipping insertion in model container [2021-10-28 23:59:12,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:11" (2/3) ... [2021-10-28 23:59:12,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6abbd308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:12, skipping insertion in model container [2021-10-28 23:59:12,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:12" (3/3) ... [2021-10-28 23:59:12,249 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2021-10-28 23:59:12,255 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:59:12,255 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:59:12,318 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:59:12,330 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:59:12,330 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:59:12,349 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:12,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:59:12,356 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:12,357 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:12,357 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:59:12,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:12,364 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-28 23:59:12,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:12,376 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474306186] [2021-10-28 23:59:12,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:12,377 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:12,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:12,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:12,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:59:12,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474306186] [2021-10-28 23:59:12,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474306186] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:12,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:12,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 23:59:12,545 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398852555] [2021-10-28 23:59:12,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:59:12,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:59:12,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:59:12,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:59:12,570 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:12,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:12,595 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-10-28 23:59:12,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:59:12,597 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 23:59:12,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:12,608 INFO L225 Difference]: With dead ends: 108 [2021-10-28 23:59:12,608 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:59:12,611 INFO L786 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 [2021-10-28 23:59:12,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:59:12,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 23:59:12,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:12,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-10-28 23:59:12,700 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-10-28 23:59:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:12,700 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-10-28 23:59:12,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:12,701 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-10-28 23:59:12,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:59:12,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:12,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:12,703 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 23:59:12,703 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:59:12,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:12,704 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-10-28 23:59:12,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:59:12,705 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918453359] [2021-10-28 23:59:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:12,706 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:59:12,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:12,796 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:59:12,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:59:12,885 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:59:12,885 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 23:59:12,887 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 23:59:12,890 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 23:59:12,894 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 23:59:12,897 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 23:59:12,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 11:59:12 BoogieIcfgContainer [2021-10-28 23:59:12,943 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 23:59:12,944 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:59:12,944 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:59:12,944 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:59:12,945 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:12" (3/4) ... [2021-10-28 23:59:12,949 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-28 23:59:12,949 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:59:12,952 INFO L168 Benchmark]: Toolchain (without parser) took 2027.62 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 60.9 MB in the beginning and 108.7 MB in the end (delta: -47.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:12,952 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory is still 77.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:12,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 379.68 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 73.5 MB in the end (delta: -12.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:12,954 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.97 ms. Allocated memory is still 102.8 MB. Free memory was 73.5 MB in the beginning and 71.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:12,955 INFO L168 Benchmark]: Boogie Preprocessor took 61.84 ms. Allocated memory is still 102.8 MB. Free memory was 71.1 MB in the beginning and 69.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:12,955 INFO L168 Benchmark]: RCFGBuilder took 785.09 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 51.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-10-28 23:59:12,956 INFO L168 Benchmark]: TraceAbstraction took 702.80 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 50.9 MB in the beginning and 108.7 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:12,957 INFO L168 Benchmark]: Witness Printer took 5.46 ms. Allocated memory is still 144.7 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:59:12,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 102.8 MB. Free memory is still 77.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 379.68 ms. Allocated memory is still 102.8 MB. Free memory was 60.7 MB in the beginning and 73.5 MB in the end (delta: -12.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.97 ms. Allocated memory is still 102.8 MB. Free memory was 73.5 MB in the beginning and 71.1 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.84 ms. Allocated memory is still 102.8 MB. Free memory was 71.1 MB in the beginning and 69.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 785.09 ms. Allocated memory is still 102.8 MB. Free memory was 69.0 MB in the beginning and 51.3 MB in the end (delta: 17.6 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 702.80 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 50.9 MB in the beginning and 108.7 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 5.46 ms. Allocated memory is still 144.7 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 178]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryDOUBLEComparisonOperation at line 18, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [one_fmod=1, Zero_fmod={6:0}] [L172] double x = 1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [one_fmod=1, Zero_fmod={6:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [one_fmod=1, Zero_fmod={6:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [one_fmod=1, Zero_fmod={6:0}] [L174] double res = fmod_double(x, y); [L18] return x != x; VAL [one_fmod=1, Zero_fmod={6:0}] [L177] COND TRUE !isnan_double(res) [L178] reach_error() VAL [one_fmod=1, Zero_fmod={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 81 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-28 23:59:13,001 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:59:15,792 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:59:15,797 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:59:15,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:59:15,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:59:15,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:59:15,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:59:15,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:59:15,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:59:15,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:59:15,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:59:15,897 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:59:15,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:59:15,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:59:15,904 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:59:15,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:59:15,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:59:15,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:59:15,915 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:59:15,918 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:59:15,920 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:59:15,924 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:59:15,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:59:15,930 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:59:15,947 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:59:15,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:59:15,948 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:59:15,949 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:59:15,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:59:15,951 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:59:15,951 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:59:15,952 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:59:15,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:59:15,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:59:15,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:59:15,956 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:59:15,959 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:59:15,960 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:59:15,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:59:15,963 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:59:15,964 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:59:15,965 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-28 23:59:16,018 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:59:16,019 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:59:16,020 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:59:16,020 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:59:16,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:59:16,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:59:16,023 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:59:16,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:59:16,024 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:59:16,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:59:16,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:59:16,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 23:59:16,025 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 23:59:16,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 23:59:16,026 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-28 23:59:16,026 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-28 23:59:16,026 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:59:16,026 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:59:16,027 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:59:16,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 23:59:16,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:59:16,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:59:16,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 23:59:16,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:16,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:59:16,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 23:59:16,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 23:59:16,028 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-28 23:59:16,029 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-28 23:59:16,029 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 23:59:16,029 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 23:59:16,029 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 23:59:16,030 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:59:16,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-28 23:59:16,030 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_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2021-10-28 23:59:16,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:59:16,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:59:16,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:59:16,586 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:59:16,587 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:59:16,587 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-28 23:59:16,676 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/5b160b028/15932e9369504462901b192855370e21/FLAG62508daf4 [2021-10-28 23:59:17,304 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:59:17,304 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2021-10-28 23:59:17,318 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/5b160b028/15932e9369504462901b192855370e21/FLAG62508daf4 [2021-10-28 23:59:17,606 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/data/5b160b028/15932e9369504462901b192855370e21 [2021-10-28 23:59:17,610 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:59:17,612 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:59:17,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:17,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:59:17,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:59:17,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:17" (1/1) ... [2021-10-28 23:59:17,628 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@61ded6b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:17, skipping insertion in model container [2021-10-28 23:59:17,628 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:59:17" (1/1) ... [2021-10-28 23:59:17,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:59:17,687 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:59:17,918 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-28 23:59:17,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:17,963 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:59:18,055 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2021-10-28 23:59:18,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:59:18,076 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:59:18,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18 WrapperNode [2021-10-28 23:59:18,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:59:18,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:18,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:59:18,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:59:18,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,101 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,131 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:59:18,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:59:18,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:59:18,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:59:18,142 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,142 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,149 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,165 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,172 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:59:18,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:59:18,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:59:18,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:59:18,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (1/1) ... [2021-10-28 23:59:18,204 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 23:59:18,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:59:18,235 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 23:59:18,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 23:59:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-28 23:59:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-28 23:59:18,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-28 23:59:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:59:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-28 23:59:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-28 23:59:18,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:59:18,305 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:59:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-28 23:59:18,306 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 23:59:23,775 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:59:23,776 INFO L299 CfgBuilder]: Removed 22 assume(true) statements. [2021-10-28 23:59:23,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:23 BoogieIcfgContainer [2021-10-28 23:59:23,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:59:23,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 23:59:23,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 23:59:23,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 23:59:23,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 11:59:17" (1/3) ... [2021-10-28 23:59:23,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e56299e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:23, skipping insertion in model container [2021-10-28 23:59:23,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:59:18" (2/3) ... [2021-10-28 23:59:23,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e56299e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 11:59:23, skipping insertion in model container [2021-10-28 23:59:23,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:23" (3/3) ... [2021-10-28 23:59:23,789 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2021-10-28 23:59:23,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 23:59:23,807 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 23:59:23,868 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 23:59:23,882 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 23:59:23,882 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 23:59:23,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:23,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-28 23:59:23,907 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:23,908 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:23,908 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:59:23,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:23,916 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2021-10-28 23:59:23,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:23,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1140899861] [2021-10-28 23:59:23,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:23,938 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:23,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:23,942 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:23,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-28 23:59:25,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:25,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-28 23:59:25,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:25,440 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:25,573 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-28 23:59:25,574 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1140899861] [2021-10-28 23:59:25,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1140899861] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-28 23:59:25,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:59:25,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-28 23:59:25,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763334322] [2021-10-28 23:59:25,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 23:59:25,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-28 23:59:25,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 23:59:25,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 23:59:25,607 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:59:25,645 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2021-10-28 23:59:25,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 23:59:25,648 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-28 23:59:25,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 23:59:25,661 INFO L225 Difference]: With dead ends: 108 [2021-10-28 23:59:25,661 INFO L226 Difference]: Without dead ends: 52 [2021-10-28 23:59:25,665 INFO L786 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 [2021-10-28 23:59:25,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-28 23:59:25,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-28 23:59:25,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2021-10-28 23:59:25,721 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2021-10-28 23:59:25,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 23:59:25,722 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2021-10-28 23:59:25,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:59:25,723 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2021-10-28 23:59:25,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 23:59:25,724 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 23:59:25,725 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:59:25,750 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-28 23:59:25,930 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-28 23:59:25,931 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 23:59:25,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:59:25,932 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2021-10-28 23:59:25,933 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-28 23:59:25,933 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1828432164] [2021-10-28 23:59:25,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:59:25,934 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-28 23:59:25,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-28 23:59:25,936 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-28 23:59:25,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-28 23:59:27,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:59:27,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2021-10-28 23:59:27,167 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 23:59:45,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:59:45,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-28 23:59:58,836 WARN L838 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from false [2021-10-29 00:00:01,242 WARN L860 $PredicateComparison]: unable to prove that (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) is different from true [2021-10-29 00:00:27,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:27,795 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:00:27,796 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1828432164] [2021-10-29 00:00:27,796 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1828432164] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:00:27,796 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:00:27,796 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 11 [2021-10-29 00:00:27,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928172706] [2021-10-29 00:00:27,798 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-10-29 00:00:27,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:00:27,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-10-29 00:00:27,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=68, Unknown=2, NotChecked=16, Total=110 [2021-10-29 00:00:27,801 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:32,417 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((ULTIMATE.start_fmod_double_~y (_ FloatingPoint 11 53))) (not (let ((.cse0 (let ((.cse1 (fp.mul c_currentRoundingMode c_ULTIMATE.start_fmod_double_~x ULTIMATE.start_fmod_double_~y))) (fp.div c_currentRoundingMode .cse1 .cse1)))) (fp.eq .cse0 .cse0)))) (= c_ULTIMATE.start_fmod_double_~x (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (_ +zero 11 53))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-10-29 00:00:57,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:00:57,737 INFO L93 Difference]: Finished difference Result 57 states and 82 transitions. [2021-10-29 00:00:57,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-29 00:00:57,772 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-29 00:00:57,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:00:57,774 INFO L225 Difference]: With dead ends: 57 [2021-10-29 00:00:57,774 INFO L226 Difference]: Without dead ends: 52 [2021-10-29 00:00:57,775 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 42.3s TimeCoverageRelationStatistics Valid=41, Invalid=96, Unknown=3, NotChecked=42, Total=182 [2021-10-29 00:00:57,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2021-10-29 00:00:57,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2021-10-29 00:00:57,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5098039215686274) internal successors, (77), 51 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:57,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2021-10-29 00:00:57,784 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 77 transitions. Word has length 12 [2021-10-29 00:00:57,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:00:57,784 INFO L470 AbstractCegarLoop]: Abstraction has 52 states and 77 transitions. [2021-10-29 00:00:57,785 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.090909090909091) internal successors, (23), 11 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:00:57,785 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 77 transitions. [2021-10-29 00:00:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-29 00:00:57,786 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 00:00:57,786 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-29 00:00:57,810 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-29 00:00:57,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:00:57,995 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 00:00:57,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 00:00:57,996 INFO L85 PathProgramCache]: Analyzing trace with hash -910533226, now seen corresponding path program 1 times [2021-10-29 00:00:57,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-29 00:00:57,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575538269] [2021-10-29 00:00:57,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 00:00:57,997 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-29 00:00:57,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat [2021-10-29 00:00:57,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-29 00:00:58,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-29 00:00:58,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 00:00:58,113 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-29 00:00:58,116 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 00:00:59,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:00:59,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 00:01:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 00:01:00,245 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-29 00:01:00,245 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575538269] [2021-10-29 00:01:00,245 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575538269] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 00:01:00,246 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 00:01:00,246 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 7 [2021-10-29 00:01:00,246 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437433778] [2021-10-29 00:01:00,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-29 00:01:00,247 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-29 00:01:00,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-29 00:01:00,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-29 00:01:00,248 INFO L87 Difference]: Start difference. First operand 52 states and 77 transitions. Second operand has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:01:00,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 00:01:00,524 INFO L93 Difference]: Finished difference Result 52 states and 77 transitions. [2021-10-29 00:01:00,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-29 00:01:00,525 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-29 00:01:00,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 00:01:00,526 INFO L225 Difference]: With dead ends: 52 [2021-10-29 00:01:00,526 INFO L226 Difference]: Without dead ends: 0 [2021-10-29 00:01:00,527 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-10-29 00:01:00,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-29 00:01:00,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-29 00:01:00,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:01:00,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-29 00:01:00,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2021-10-29 00:01:00,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 00:01:00,528 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-29 00:01:00,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 00:01:00,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-29 00:01:00,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-29 00:01:00,530 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 00:01:00,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-29 00:01:00,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/mathsat -unsat_core_generation=3 [2021-10-29 00:01:00,734 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-29 00:01:00,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,776 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,778 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,779 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,780 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,781 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,785 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,786 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:00,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-29 00:01:06,422 WARN L207 SmtUtils]: Spent 5.41 s on a formula simplification. DAG size of input: 17 DAG size of output: 10 [2021-10-29 00:01:06,425 INFO L857 garLoopResultBuilder]: For program point L35-2(lines 35 40) no Hoare annotation was computed. [2021-10-29 00:01:06,425 INFO L853 garLoopResultBuilder]: At program point L68-3(lines 68 69) the Hoare annotation is: false [2021-10-29 00:01:06,425 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-29 00:01:06,425 INFO L857 garLoopResultBuilder]: For program point L136-1(lines 136 141) no Hoare annotation was computed. [2021-10-29 00:01:06,425 INFO L857 garLoopResultBuilder]: For program point L103-1(lines 103 117) no Hoare annotation was computed. [2021-10-29 00:01:06,426 INFO L853 garLoopResultBuilder]: At program point L136-2(lines 136 141) the Hoare annotation is: false [2021-10-29 00:01:06,426 INFO L857 garLoopResultBuilder]: For program point L103-3(lines 103 117) no Hoare annotation was computed. [2021-10-29 00:01:06,426 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-29 00:01:06,426 INFO L857 garLoopResultBuilder]: For program point L120-2(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,426 INFO L857 garLoopResultBuilder]: For program point L71-2(lines 71 72) no Hoare annotation was computed. [2021-10-29 00:01:06,427 INFO L853 garLoopResultBuilder]: At program point L71-3(lines 71 72) the Hoare annotation is: false [2021-10-29 00:01:06,427 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 159) no Hoare annotation was computed. [2021-10-29 00:01:06,427 INFO L857 garLoopResultBuilder]: For program point L154-1(lines 142 161) no Hoare annotation was computed. [2021-10-29 00:01:06,427 INFO L857 garLoopResultBuilder]: For program point L154-2(lines 154 159) no Hoare annotation was computed. [2021-10-29 00:01:06,427 INFO L857 garLoopResultBuilder]: For program point L55(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,427 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,428 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 62) no Hoare annotation was computed. [2021-10-29 00:01:06,428 INFO L857 garLoopResultBuilder]: For program point L106(lines 106 107) no Hoare annotation was computed. [2021-10-29 00:01:06,428 INFO L857 garLoopResultBuilder]: For program point L106-2(lines 103 117) no Hoare annotation was computed. [2021-10-29 00:01:06,428 INFO L857 garLoopResultBuilder]: For program point L57-2(lines 57 58) no Hoare annotation was computed. [2021-10-29 00:01:06,428 INFO L853 garLoopResultBuilder]: At program point L57-3(lines 57 58) the Hoare annotation is: false [2021-10-29 00:01:06,429 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-29 00:01:06,429 INFO L853 garLoopResultBuilder]: At program point L108-1(lines 103 117) the Hoare annotation is: false [2021-10-29 00:01:06,429 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-10-29 00:01:06,429 INFO L857 garLoopResultBuilder]: For program point L93-2(lines 89 100) no Hoare annotation was computed. [2021-10-29 00:01:06,429 INFO L857 garLoopResultBuilder]: For program point L60-2(lines 60 61) no Hoare annotation was computed. [2021-10-29 00:01:06,429 INFO L853 garLoopResultBuilder]: At program point L60-3(lines 60 61) the Hoare annotation is: false [2021-10-29 00:01:06,430 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-29 00:01:06,430 INFO L857 garLoopResultBuilder]: For program point L177(lines 177 180) no Hoare annotation was computed. [2021-10-29 00:01:06,430 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 153) no Hoare annotation was computed. [2021-10-29 00:01:06,430 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 47) no Hoare annotation was computed. [2021-10-29 00:01:06,430 INFO L857 garLoopResultBuilder]: For program point L29-1(lines 29 34) no Hoare annotation was computed. [2021-10-29 00:01:06,431 INFO L853 garLoopResultBuilder]: At program point L29-2(lines 29 34) the Hoare annotation is: (and (= ULTIMATE.start_fmod_double_~x (fp.div currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0) (_ +zero 11 53))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-29 00:01:06,431 INFO L857 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-10-29 00:01:06,431 INFO L857 garLoopResultBuilder]: For program point L112(lines 112 113) no Hoare annotation was computed. [2021-10-29 00:01:06,431 INFO L853 garLoopResultBuilder]: At program point L162(lines 25 163) the Hoare annotation is: (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|)) [2021-10-29 00:01:06,432 INFO L853 garLoopResultBuilder]: At program point L129-2(lines 129 133) the Hoare annotation is: false [2021-10-29 00:01:06,432 INFO L857 garLoopResultBuilder]: For program point L129-3(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,432 INFO L857 garLoopResultBuilder]: For program point L147(lines 147 153) no Hoare annotation was computed. [2021-10-29 00:01:06,432 INFO L857 garLoopResultBuilder]: For program point L81(lines 81 87) no Hoare annotation was computed. [2021-10-29 00:01:06,432 INFO L857 garLoopResultBuilder]: For program point L48(lines 48 53) no Hoare annotation was computed. [2021-10-29 00:01:06,432 INFO L857 garLoopResultBuilder]: For program point L81-2(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,433 INFO L857 garLoopResultBuilder]: For program point L48-2(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,433 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-29 00:01:06,433 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 178) no Hoare annotation was computed. [2021-10-29 00:01:06,433 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 50) no Hoare annotation was computed. [2021-10-29 00:01:06,433 INFO L857 garLoopResultBuilder]: For program point L66(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,434 INFO L860 garLoopResultBuilder]: At program point L182(lines 165 183) the Hoare annotation is: true [2021-10-29 00:01:06,434 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 73) no Hoare annotation was computed. [2021-10-29 00:01:06,434 INFO L857 garLoopResultBuilder]: For program point L51(lines 51 52) no Hoare annotation was computed. [2021-10-29 00:01:06,434 INFO L853 garLoopResultBuilder]: At program point L18(line 18) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_double_#res|) (not (fp.eq |ULTIMATE.start_fmod_double_#res| |ULTIMATE.start_fmod_double_#res|))) [2021-10-29 00:01:06,434 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 161) no Hoare annotation was computed. [2021-10-29 00:01:06,435 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 40) no Hoare annotation was computed. [2021-10-29 00:01:06,435 INFO L857 garLoopResultBuilder]: For program point L35-1(lines 25 163) no Hoare annotation was computed. [2021-10-29 00:01:06,435 INFO L857 garLoopResultBuilder]: For program point L68-2(lines 68 69) no Hoare annotation was computed. [2021-10-29 00:01:06,439 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-29 00:01:06,441 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 00:01:06,457 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:01:06,459 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:01:06,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 12:01:06 BoogieIcfgContainer [2021-10-29 00:01:06,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 00:01:06,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 00:01:06,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 00:01:06,462 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 00:01:06,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:59:23" (3/4) ... [2021-10-29 00:01:06,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-29 00:01:06,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-29 00:01:06,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-29 00:01:06,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:01:06,482 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-29 00:01:06,521 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-29 00:01:06,521 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 00:01:06,522 INFO L168 Benchmark]: Toolchain (without parser) took 108909.45 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 45.6 MB in the beginning and 53.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:06,523 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 00:01:06,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 462.91 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 46.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:06,524 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.67 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:06,525 INFO L168 Benchmark]: Boogie Preprocessor took 49.29 ms. Allocated memory is still 67.1 MB. Free memory was 44.1 MB in the beginning and 42.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:06,525 INFO L168 Benchmark]: RCFGBuilder took 5596.18 ms. Allocated memory is still 67.1 MB. Free memory was 42.0 MB in the beginning and 40.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:06,526 INFO L168 Benchmark]: TraceAbstraction took 102679.97 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 39.6 MB in the beginning and 56.0 MB in the end (delta: -16.4 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:06,526 INFO L168 Benchmark]: Witness Printer took 59.82 ms. Allocated memory is still 88.1 MB. Free memory was 56.0 MB in the beginning and 53.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 00:01:06,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 67.1 MB. Free memory is still 47.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 462.91 ms. Allocated memory is still 67.1 MB. Free memory was 45.4 MB in the beginning and 46.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 53.67 ms. Allocated memory is still 67.1 MB. Free memory was 46.4 MB in the beginning and 44.1 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 49.29 ms. Allocated memory is still 67.1 MB. Free memory was 44.1 MB in the beginning and 42.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 5596.18 ms. Allocated memory is still 67.1 MB. Free memory was 42.0 MB in the beginning and 40.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 15.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 102679.97 ms. Allocated memory was 67.1 MB in the beginning and 88.1 MB in the end (delta: 21.0 MB). Free memory was 39.6 MB in the beginning and 56.0 MB in the end (delta: -16.4 MB). Peak memory consumption was 3.7 MB. Max. memory is 16.1 GB. * Witness Printer took 59.82 ms. Allocated memory is still 88.1 MB. Free memory was 56.0 MB in the beginning and 53.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 178]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 55 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 102.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 30.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 159 SDtfs, 15 SDslu, 398 SDs, 0 SdLazy, 33 SolverSat, 4 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 10.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 2 IntricatePredicates, 1 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 43.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55occurred in iteration=0, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 15 NumberOfFragments, 32 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 5.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 63.1s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 14 QuantifiedInterpolants, 450 SizeOfPredicates, 19 NumberOfNonLiveVariables, 199 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1bv32 == \result && !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: !~fp.eq~DOUBLE(\result, \result) - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 29]: Loop Invariant [2021-10-29 00:01:06,540 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-29 00:01:06,541 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == ~fp.div~DOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-10-29 00:01:06,769 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-29 00:01:06,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_03649cb9-83b9-4220-9e5f-0ac1cf86d639/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...