./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be --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 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 .................................................................................................................................................................................................................................................................................................................................................... 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_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_Newton-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be --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 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:26:14,521 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:26:14,523 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:26:14,559 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:26:14,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:26:14,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:26:14,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:26:14,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:26:14,567 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:26:14,568 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:26:14,569 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:26:14,570 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:26:14,571 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:26:14,572 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:26:14,574 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:26:14,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:26:14,576 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:26:14,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:26:14,579 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:26:14,582 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:26:14,583 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:26:14,585 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:26:14,586 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:26:14,587 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:26:14,591 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:26:14,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:26:14,592 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:26:14,593 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:26:14,593 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:26:14,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:26:14,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:26:14,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:26:14,597 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:26:14,598 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:26:14,599 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:26:14,599 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:26:14,600 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:26:14,600 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:26:14,601 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:26:14,602 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:26:14,602 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:26:14,603 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:26:14,627 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:26:14,627 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:26:14,627 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:26:14,628 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:26:14,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:26:14,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:26:14,629 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:26:14,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:26:14,630 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:26:14,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:26:14,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:26:14,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:26:14,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:26:14,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:26:14,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:26:14,631 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:26:14,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:26:14,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:26:14,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:26:14,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:26:14,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:26:14,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:26:14,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:26:14,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:26:14,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:26:14,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:26:14,633 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:26:14,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:26:14,633 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:26:14,634 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:26:14,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:26:14,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:26:14,634 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_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-10-21 20:26:14,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:26:14,963 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:26:14,966 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:26:14,967 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:26:14,970 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:26:14,971 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-21 20:26:15,055 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/b4a9deb01/41183a5d88ef4a6490fd975c95612ad6/FLAGbd1dd704d [2021-10-21 20:26:15,563 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:26:15,563 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-21 20:26:15,575 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/b4a9deb01/41183a5d88ef4a6490fd975c95612ad6/FLAGbd1dd704d [2021-10-21 20:26:15,910 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/b4a9deb01/41183a5d88ef4a6490fd975c95612ad6 [2021-10-21 20:26:15,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:26:15,914 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:26:15,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:26:15,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:26:15,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:26:15,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:26:15" (1/1) ... [2021-10-21 20:26:15,930 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5642e640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:15, skipping insertion in model container [2021-10-21 20:26:15,932 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:26:15" (1/1) ... [2021-10-21 20:26:15,938 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:26:15,951 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:26:16,146 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_836f8fb6-3923-481b-bb81-72a670995b4e/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-21 20:26:16,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:26:16,187 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:26:16,202 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_836f8fb6-3923-481b-bb81-72a670995b4e/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-21 20:26:16,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:26:16,242 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:26:16,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16 WrapperNode [2021-10-21 20:26:16,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:26:16,245 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:26:16,245 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:26:16,245 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:26:16,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,261 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:26:16,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:26:16,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:26:16,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:26:16,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,313 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,326 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,333 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:26:16,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:26:16,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:26:16,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:26:16,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (1/1) ... [2021-10-21 20:26:16,353 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:26:16,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:26:16,375 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:26:16,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:26:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:26:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:26:16,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-21 20:26:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-21 20:26:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-21 20:26:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:26:16,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:26:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-21 20:26:16,424 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:26:16,743 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:26:16,743 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-21 20:26:16,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:16 BoogieIcfgContainer [2021-10-21 20:26:16,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:26:16,747 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:26:16,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:26:16,750 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:26:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:26:15" (1/3) ... [2021-10-21 20:26:16,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcf73cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:26:16, skipping insertion in model container [2021-10-21 20:26:16,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:16" (2/3) ... [2021-10-21 20:26:16,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fcf73cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:26:16, skipping insertion in model container [2021-10-21 20:26:16,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:16" (3/3) ... [2021-10-21 20:26:16,753 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-10-21 20:26:16,758 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:26:16,758 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:26:16,802 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:26:16,811 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 [2021-10-21 20:26:16,811 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:26:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-10-21 20:26:16,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 20:26:16,843 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:16,844 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:16,845 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:16,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:16,850 INFO L82 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-10-21 20:26:16,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:16,868 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759089811] [2021-10-21 20:26:16,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:16,870 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:16,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:17,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:17,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:17,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759089811] [2021-10-21 20:26:17,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759089811] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:17,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:17,062 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:26:17,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1202928980] [2021-10-21 20:26:17,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:26:17,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:17,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:26:17,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:26:17,093 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-21 20:26:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:17,107 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-10-21 20:26:17,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:26:17,109 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-10-21 20:26:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:17,117 INFO L225 Difference]: With dead ends: 25 [2021-10-21 20:26:17,118 INFO L226 Difference]: Without dead ends: 10 [2021-10-21 20:26:17,121 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:26:17,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-21 20:26:17,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-21 20:26:17,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2021-10-21 20:26:17,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-21 20:26:17,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-10-21 20:26:17,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:17,150 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-21 20:26:17,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-21 20:26:17,151 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-21 20:26:17,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 20:26:17,151 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:17,152 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:17,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:26:17,152 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:17,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:17,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-10-21 20:26:17,154 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:17,154 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096352005] [2021-10-21 20:26:17,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:17,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:17,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:17,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:17,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:26:17,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096352005] [2021-10-21 20:26:17,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096352005] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:17,264 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:17,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:26:17,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453388075] [2021-10-21 20:26:17,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-21 20:26:17,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:26:17,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:26:17,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:17,275 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-21 20:26:17,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:17,285 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-21 20:26:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:17,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-10-21 20:26:17,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:17,286 INFO L225 Difference]: With dead ends: 16 [2021-10-21 20:26:17,286 INFO L226 Difference]: Without dead ends: 11 [2021-10-21 20:26:17,287 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:26:17,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-21 20:26:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 20:26:17,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-10-21 20:26:17,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-21 20:26:17,290 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-10-21 20:26:17,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:17,291 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-21 20:26:17,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-21 20:26:17,291 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-21 20:26:17,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:26:17,291 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:17,292 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:17,292 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:26:17,292 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:17,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:17,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-10-21 20:26:17,293 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:26:17,293 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766412432] [2021-10-21 20:26:17,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:17,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:26:17,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:26:17,353 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:26:17,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:26:17,446 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:26:17,453 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:26:17,454 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:26:17,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-21 20:26:17,464 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:26:17,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:26:17 BoogieIcfgContainer [2021-10-21 20:26:17,507 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:26:17,508 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:26:17,508 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:26:17,509 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:26:17,509 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:16" (3/4) ... [2021-10-21 20:26:17,512 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:26:17,512 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:26:17,516 INFO L168 Benchmark]: Toolchain (without parser) took 1599.11 ms. Allocated memory is still 117.4 MB. Free memory was 82.2 MB in the beginning and 48.5 MB in the end (delta: 33.8 MB). Peak memory consumption was 30.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:17,516 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 117.4 MB. Free memory was 98.7 MB in the beginning and 98.7 MB in the end (delta: 68.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:26:17,523 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.94 ms. Allocated memory is still 117.4 MB. Free memory was 82.0 MB in the beginning and 94.6 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:17,525 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 92.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:26:17,525 INFO L168 Benchmark]: Boogie Preprocessor took 51.31 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 91.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:17,526 INFO L168 Benchmark]: RCFGBuilder took 401.07 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 80.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:17,527 INFO L168 Benchmark]: TraceAbstraction took 760.08 ms. Allocated memory is still 117.4 MB. Free memory was 79.9 MB in the beginning and 48.7 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:17,527 INFO L168 Benchmark]: Witness Printer took 4.39 ms. Allocated memory is still 117.4 MB. Free memory was 48.7 MB in the beginning and 48.5 MB in the end (delta: 217.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:26:17,536 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 117.4 MB. Free memory was 98.7 MB in the beginning and 98.7 MB in the end (delta: 68.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 327.94 ms. Allocated memory is still 117.4 MB. Free memory was 82.0 MB in the beginning and 94.6 MB in the end (delta: -12.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.50 ms. Allocated memory is still 117.4 MB. Free memory was 94.2 MB in the beginning and 92.7 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 51.31 ms. Allocated memory is still 117.4 MB. Free memory was 92.7 MB in the beginning and 91.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 401.07 ms. Allocated memory is still 117.4 MB. Free memory was 91.4 MB in the beginning and 80.1 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 760.08 ms. Allocated memory is still 117.4 MB. Free memory was 79.9 MB in the beginning and 48.7 MB in the end (delta: 31.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * Witness Printer took 4.39 ms. Allocated memory is still 117.4 MB. Free memory was 48.7 MB in the beginning and 48.5 MB in the end (delta: 217.7 kB). 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, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 16]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 36, overapproximation of someBinaryDOUBLEComparisonOperation at line 53, overapproximation of to_real at line 31. Possible FailurePath: [L46] double a,r; [L48] a = __VERIFIER_nondet_double() [L14] COND FALSE !(!cond) [L26] double xi, xsi, temp; [L27] signed int cond, exp; [L28] union double_int A_u, xi_u; [L29] A_u.d = A [L30] EXPR A_u.i [L30] exp = (signed int) ((A_u.i & 0x7FF0000000000000) >> 52) - 1023 [L31] xi_u.d = 1 [L32] xi_u.i = (((long long)(1023-exp)) << 52) [L33] EXPR xi_u.d [L33] xi = xi_u.d [L34] cond = 1 [L35] COND TRUE \read(cond) [L36] xsi = 2*xi-A*xi*xi [L37] temp = xsi-xi [L38] cond = ((temp > 1e-10) || (temp < -1e-10)) [L39] xi = xsi [L35] COND FALSE !(\read(cond)) [L41] return xi; [L41] return xi; [L41] return xi; [L51] r = inv(a) [L16] COND TRUE !(cond) [L16] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 662.5ms, OverallIterations: 3, TraceHistogramMax: 1, EmptinessCheckTime: 9.2ms, AutomataDifference: 62.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 24.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 23 SDtfs, 0 SDslu, 7 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 17.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.8ms SsaConstructionTime, 113.0ms SatisfiabilityAnalysisTime, 141.5ms InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-10-21 20:26:17,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/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-e943c26 [2021-10-21 20:26:19,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:26:19,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:26:19,980 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:26:19,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:26:19,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:26:19,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:26:19,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:26:19,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:26:20,002 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:26:20,004 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:26:20,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:26:20,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:26:20,009 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:26:20,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:26:20,018 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:26:20,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:26:20,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:26:20,026 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:26:20,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:26:20,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:26:20,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:26:20,040 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:26:20,042 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:26:20,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:26:20,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:26:20,051 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:26:20,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:26:20,054 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:26:20,055 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:26:20,056 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:26:20,057 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:26:20,059 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:26:20,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:26:20,071 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:26:20,071 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:26:20,072 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:26:20,072 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:26:20,072 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:26:20,074 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:26:20,075 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:26:20,075 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 20:26:20,121 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:26:20,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:26:20,122 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:26:20,122 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:26:20,124 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:26:20,124 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:26:20,124 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:26:20,125 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:26:20,125 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:26:20,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:26:20,126 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:26:20,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:26:20,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:26:20,127 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:26:20,127 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:26:20,127 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:26:20,127 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:26:20,128 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:26:20,128 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:26:20,128 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:26:20,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:26:20,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:26:20,129 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:26:20,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:26:20,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:26:20,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:26:20,130 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:26:20,130 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:26:20,130 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:26:20,130 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:26:20,130 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:26:20,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:26:20,131 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:26:20,131 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:26:20,131 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_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c5bb845798e00aa3572bfadf1cd4653d0b05182832339d0260ef999baa89392 [2021-10-21 20:26:20,481 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:26:20,501 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:26:20,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:26:20,505 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:26:20,510 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:26:20,511 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-21 20:26:20,579 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/6e5389e39/6139ce1f3082453988685728ad10e168/FLAGa9ef4a739 [2021-10-21 20:26:21,183 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:26:21,184 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/sv-benchmarks/c/float-benchs/inv_Newton-1.c [2021-10-21 20:26:21,194 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/6e5389e39/6139ce1f3082453988685728ad10e168/FLAGa9ef4a739 [2021-10-21 20:26:21,544 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/data/6e5389e39/6139ce1f3082453988685728ad10e168 [2021-10-21 20:26:21,552 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:26:21,553 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:26:21,555 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:26:21,555 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:26:21,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:26:21,560 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,561 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c4bcad4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21, skipping insertion in model container [2021-10-21 20:26:21,561 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,568 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:26:21,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:26:21,758 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_836f8fb6-3923-481b-bb81-72a670995b4e/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-21 20:26:21,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:26:21,791 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:26:21,811 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_836f8fb6-3923-481b-bb81-72a670995b4e/sv-benchmarks/c/float-benchs/inv_Newton-1.c[598,611] [2021-10-21 20:26:21,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:26:21,865 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:26:21,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21 WrapperNode [2021-10-21 20:26:21,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:26:21,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:26:21,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:26:21,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:26:21,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,896 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:26:21,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:26:21,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:26:21,928 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:26:21,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,970 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,983 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:21,988 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:26:21,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:26:21,991 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:26:21,992 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:26:21,993 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (1/1) ... [2021-10-21 20:26:22,003 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:26:22,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:26:22,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:26:22,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:26:22,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-21 20:26:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-21 20:26:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 20:26:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:26:22,079 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-10-21 20:26:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:26:22,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:26:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-10-21 20:26:22,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-21 20:26:24,511 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:26:24,512 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-21 20:26:24,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:24 BoogieIcfgContainer [2021-10-21 20:26:24,513 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:26:24,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:26:24,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:26:24,518 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:26:24,519 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:26:21" (1/3) ... [2021-10-21 20:26:24,519 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547f2581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:26:24, skipping insertion in model container [2021-10-21 20:26:24,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:26:21" (2/3) ... [2021-10-21 20:26:24,520 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@547f2581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:26:24, skipping insertion in model container [2021-10-21 20:26:24,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:26:24" (3/3) ... [2021-10-21 20:26:24,522 INFO L111 eAbstractionObserver]: Analyzing ICFG inv_Newton-1.c [2021-10-21 20:26:24,527 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:26:24,527 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:26:24,574 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:26:24,580 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 [2021-10-21 20:26:24,580 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:26:24,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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) [2021-10-21 20:26:24,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 20:26:24,598 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:24,599 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:24,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:24,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:24,605 INFO L82 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2021-10-21 20:26:24,616 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:26:24,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480873614] [2021-10-21 20:26:24,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:24,618 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:26:24,618 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:26:24,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:26:24,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:26:24,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:24,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 20:26:24,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:26:24,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:24,816 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:26:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:24,867 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:26:24,868 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480873614] [2021-10-21 20:26:24,869 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480873614] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:24,869 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:24,869 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 20:26:24,871 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44279323] [2021-10-21 20:26:24,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:26:24,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:26:24,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:26:24,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:26:24,900 INFO L87 Difference]: Start difference. First operand has 14 states, 12 states have (on average 1.4166666666666667) internal successors, (17), 13 states have internal predecessors, (17), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-21 20:26:24,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:24,934 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2021-10-21 20:26:24,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:26:24,935 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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 9 [2021-10-21 20:26:24,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:24,943 INFO L225 Difference]: With dead ends: 25 [2021-10-21 20:26:24,943 INFO L226 Difference]: Without dead ends: 10 [2021-10-21 20:26:24,946 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:26:24,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2021-10-21 20:26:25,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-10-21 20:26:25,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 9 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) [2021-10-21 20:26:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2021-10-21 20:26:25,006 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 9 [2021-10-21 20:26:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:25,006 INFO L470 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2021-10-21 20:26:25,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-21 20:26:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2021-10-21 20:26:25,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-21 20:26:25,007 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:25,007 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:25,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-21 20:26:25,224 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:26:25,224 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:25,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:25,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2021-10-21 20:26:25,226 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:26:25,226 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1128347805] [2021-10-21 20:26:25,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:25,227 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:26:25,227 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:26:25,228 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:26:25,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 20:26:25,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:25,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-21 20:26:25,340 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:26:25,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:25,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:26:25,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:26:25,487 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:26:25,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1128347805] [2021-10-21 20:26:25,487 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1128347805] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:26:25,488 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:26:25,488 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-21 20:26:25,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119104995] [2021-10-21 20:26:25,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-21 20:26:25,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:26:25,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-21 20:26:25,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:26:25,491 INFO L87 Difference]: Start difference. First operand 10 states and 10 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-21 20:26:27,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:26:27,808 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2021-10-21 20:26:27,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:26:27,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 9 [2021-10-21 20:26:27,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:26:27,809 INFO L225 Difference]: With dead ends: 16 [2021-10-21 20:26:27,810 INFO L226 Difference]: Without dead ends: 11 [2021-10-21 20:26:27,810 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-21 20:26:27,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2021-10-21 20:26:27,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2021-10-21 20:26:27,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.1) internal successors, (11), 10 states have internal predecessors, (11), 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) [2021-10-21 20:26:27,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2021-10-21 20:26:27,814 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 9 [2021-10-21 20:26:27,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:26:27,814 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2021-10-21 20:26:27,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-10-21 20:26:27,814 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2021-10-21 20:26:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-21 20:26:27,815 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:26:27,815 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:26:27,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 20:26:28,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:26:28,016 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:26:28,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:26:28,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1873743609, now seen corresponding path program 1 times [2021-10-21 20:26:28,018 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:26:28,018 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2045092349] [2021-10-21 20:26:28,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:26:28,018 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:26:28,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:26:28,020 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:26:28,021 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-21 20:26:28,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:26:29,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 21 conjunts are in the unsatisfiable core [2021-10-21 20:26:29,025 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:26:29,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 358 treesize of output 340 [2021-10-21 20:26:29,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 486 treesize of output 474 [2021-10-21 20:27:09,184 WARN L207 SmtUtils]: Spent 6.15 s on a formula simplification. DAG size of input: 30 DAG size of output: 1 [2021-10-21 20:28:27,113 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse5 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse4 (let ((.cse6 (let ((.cse7 (let ((.cse8 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse8)) (_ bv4294966273 32))))) .cse8)))) (concat ((_ extract 63 32) .cse7) ((_ extract 31 0) .cse7))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (and (let ((.cse2 (fp.sub c_currentRoundingMode c_ULTIMATE.start_inv_~xi~0 .cse4)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (let ((.cse0 (fp.gt .cse2 .cse3)) (.cse1 (fp.lt .cse2 (fp.neg .cse3)))) (or (and (= (_ bv0 32) c_ULTIMATE.start_inv_~cond~0) (not .cse0) (not .cse1)) (and (or .cse0 .cse1) (= (_ bv1 32) c_ULTIMATE.start_inv_~cond~0))))) (fp.leq .cse5 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse5 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= c_ULTIMATE.start_inv_~xi~0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse5 .cse4) .cse4)))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-21 20:28:50,312 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse3 (let ((.cse4 (let ((.cse5 (let ((.cse6 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse6)) (_ bv4294966273 32))))) .cse6)))) (concat ((_ extract 63 32) .cse5) ((_ extract 31 0) .cse5))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse0 (fp.sub c_currentRoundingMode c_ULTIMATE.start_inv_~xi~0 .cse3)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (and (not (fp.gt .cse0 .cse1)) (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (= c_ULTIMATE.start_inv_~xi~0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse3) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse3) .cse3))) (not (fp.lt .cse0 (fp.neg .cse1))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-21 20:29:13,804 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (let ((.cse4 (let ((.cse5 (let ((.cse6 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse6)) (_ bv4294966273 32))))) .cse6)))) (concat ((_ extract 63 32) .cse5) ((_ extract 31 0) .cse5))))) (fp ((_ extract 63 63) .cse4) ((_ extract 62 52) .cse4) ((_ extract 51 0) .cse4))))) (let ((.cse1 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse2 (fp.sub c_currentRoundingMode |c_ULTIMATE.start_inv_#res| .cse0)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (and (= |c_ULTIMATE.start_inv_#res| (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse0) .cse0))) (not (fp.gt .cse2 .cse3)) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 30.0)) (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode 20.0)) (not (fp.lt .cse2 (fp.neg .cse3))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-21 20:30:25,379 WARN L207 SmtUtils]: Spent 5.35 s on a formula simplification. DAG size of input: 38 DAG size of output: 1 [2021-10-21 20:31:08,126 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse8)) (_ bv4294966273 32))))) .cse8)))) (concat ((_ extract 63 32) .cse7) ((_ extract 31 0) .cse7))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse5) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse5) .cse5)))) (let ((.cse0 (fp.sub roundNearestTiesToEven .cse3 .cse5)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (not (fp.gt .cse0 .cse1)) (let ((.cse2 (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse2)) (and .cse2 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.lt .cse0 (fp.neg .cse1)))))))) is different from false [2021-10-21 20:31:10,190 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse4 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse8)) (_ bv4294966273 32))))) .cse8)))) (concat ((_ extract 63 32) .cse7) ((_ extract 31 0) .cse7))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (let ((.cse3 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse5) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 .cse5) .cse5)))) (let ((.cse0 (fp.sub roundNearestTiesToEven .cse3 .cse5)) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (and (not (fp.gt .cse0 .cse1)) (let ((.cse2 (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0))))) (or (and (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv0 32)) (not .cse2)) (and .cse2 (= c_ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)) (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))) (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.lt .cse0 (fp.neg .cse1)))))))) is different from true [2021-10-21 20:31:35,167 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse5)) (_ bv4294966273 32))))) .cse5)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse1) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 .cse1) .cse1)))) (and (not (fp.gt (fp.sub roundNearestTiesToEven .cse0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0)))) (fp.geq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))) is different from false [2021-10-21 20:31:37,214 WARN L860 $PredicateComparison]: unable to prove that (exists ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse1 (let ((.cse3 (let ((.cse4 (let ((.cse5 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse5)) (_ bv4294966273 32))))) .cse5)))) (concat ((_ extract 63 32) .cse4) ((_ extract 31 0) .cse4))))) (fp ((_ extract 63 63) .cse3) ((_ extract 62 52) .cse3) ((_ extract 51 0) .cse3))))) (let ((.cse0 (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (_ bv2 32)) .cse1) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse2 .cse1) .cse1)))) (and (not (fp.gt (fp.sub roundNearestTiesToEven .cse0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10000000000.0)))) (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 30.0)) (not (fp.leq .cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 50.0)))) (fp.geq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 20.0)))))) is different from true [2021-10-21 20:31:37,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-21 20:31:37,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:31:57,188 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (let ((.cse0 (fp.sub c_currentRoundingMode .cse2 c_ULTIMATE.start_inv_~xi~0)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.lt .cse0 (fp.neg .cse1)) (fp.gt .cse0 .cse1) (and (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))) (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from false [2021-10-21 20:31:59,312 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse2 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) c_ULTIMATE.start_inv_~xi~0) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode c_ULTIMATE.start_inv_~A c_ULTIMATE.start_inv_~xi~0) c_ULTIMATE.start_inv_~xi~0)))) (let ((.cse0 (fp.sub c_currentRoundingMode .cse2 c_ULTIMATE.start_inv_~xi~0)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (fp.lt .cse0 (fp.neg .cse1)) (fp.gt .cse0 .cse1) (and (fp.leq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0))) (fp.geq .cse2 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))))) is different from true [2021-10-21 20:31:59,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 4949 treesize of output 4697 [2021-10-21 20:31:59,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6664 treesize of output 6496 [2021-10-21 20:33:28,269 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse7)) (_ bv4294966273 32))))) .cse7)))) (concat ((_ extract 63 32) .cse6) ((_ extract 31 0) .cse6))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse4) .cse4)))) (let ((.cse2 (fp.sub c_currentRoundingMode .cse0 .cse4)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))) (not (= c_ULTIMATE.start_main_~a~0 .cse1)) (fp.gt .cse2 .cse3) (fp.lt .cse2 (fp.neg .cse3))))))) is different from true [2021-10-21 20:34:24,461 WARN L860 $PredicateComparison]: unable to prove that (or (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)) (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse1 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse7)) (_ bv4294966273 32))))) .cse7)))) (concat ((_ extract 63 32) .cse6) ((_ extract 31 0) .cse6))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse0 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse1 .cse4) .cse4)))) (let ((.cse2 (fp.sub c_currentRoundingMode .cse0 .cse4)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (and (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))) (not (= c_ULTIMATE.start_main_~a~0 .cse1)) (fp.gt .cse2 .cse3) (fp.lt .cse2 (fp.neg .cse3)))))))) is different from true [2021-10-21 20:35:35,734 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse7)) (_ bv4294966273 32))))) .cse7)))) (concat ((_ extract 63 32) .cse6) ((_ extract 31 0) .cse6))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse4) .cse4)))) (let ((.cse2 (fp.sub c_currentRoundingMode .cse1 .cse4)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0))) (fp.gt .cse2 .cse3) (fp.lt .cse2 (fp.neg .cse3))))))) is different from false [2021-10-21 20:35:37,809 WARN L860 $PredicateComparison]: unable to prove that (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse7)) (_ bv4294966273 32))))) .cse7)))) (concat ((_ extract 63 32) .cse6) ((_ extract 31 0) .cse6))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse4) .cse4)))) (let ((.cse2 (fp.sub c_currentRoundingMode .cse1 .cse4)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0))) (fp.gt .cse2 .cse3) (fp.lt .cse2 (fp.neg .cse3))))))) is different from true [2021-10-21 20:35:37,809 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2021-10-21 20:35:37,809 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:35:37,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2045092349] [2021-10-21 20:35:37,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2045092349] provided 0 perfect and 2 imperfect interpolant sequences [2021-10-21 20:35:37,810 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-21 20:35:37,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 18 [2021-10-21 20:35:37,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486804623] [2021-10-21 20:35:37,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-21 20:35:37,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:35:37,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-21 20:35:37,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=74, Unknown=13, NotChecked=216, Total=342 [2021-10-21 20:35:37,813 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand has 19 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 18 states have internal predecessors, (20), 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) [2021-10-21 20:35:39,911 WARN L838 $PredicateComparison]: unable to prove that (and (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse0 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse4 (let ((.cse5 (let ((.cse6 (let ((.cse7 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse7)) (_ bv4294966273 32))))) .cse7)))) (concat ((_ extract 63 32) .cse6) ((_ extract 31 0) .cse6))))) (fp ((_ extract 63 63) .cse5) ((_ extract 62 52) .cse5) ((_ extract 51 0) .cse5))))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse4) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse4) .cse4)))) (let ((.cse2 (fp.sub c_currentRoundingMode .cse1 .cse4)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (not (fp.geq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))) (not (fp.leq .cse0 ((_ to_fp 11 53) c_currentRoundingMode 30.0))) (fp.gt .cse2 .cse3) (fp.lt .cse2 (fp.neg .cse3))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-10-21 20:35:43,603 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse0 (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv0 32)))) (and (or .cse0 (forall ((v_skolemized_v_prenex_1_3 (_ BitVec 64))) (let ((.cse2 (fp ((_ extract 63 63) v_skolemized_v_prenex_1_3) ((_ extract 62 52) v_skolemized_v_prenex_1_3) ((_ extract 51 0) v_skolemized_v_prenex_1_3))) (.cse5 (let ((.cse6 (let ((.cse7 (let ((.cse8 ((_ sign_extend 32) (_ bv52 32)))) (bvshl ((_ sign_extend 32) (bvadd (_ bv1023 32) (bvneg (bvadd ((_ extract 31 0) (bvashr (bvand (_ bv9218868437227405312 64) (concat ((_ extract 63 32) v_skolemized_v_prenex_1_3) ((_ extract 31 0) v_skolemized_v_prenex_1_3))) .cse8)) (_ bv4294966273 32))))) .cse8)))) (concat ((_ extract 63 32) .cse7) ((_ extract 31 0) .cse7))))) (fp ((_ extract 63 63) .cse6) ((_ extract 62 52) .cse6) ((_ extract 51 0) .cse6))))) (let ((.cse1 (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (_ bv2 32)) .cse5) (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 .cse5) .cse5)))) (let ((.cse3 (fp.sub c_currentRoundingMode .cse1 .cse5)) (.cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 10000000000.0)))) (or (and (fp.geq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (fp.leq .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 3.0 50.0)))) (not (= c_ULTIMATE.start_main_~a~0 .cse2)) (fp.gt .cse3 .cse4) (fp.lt .cse3 (fp.neg .cse4)))))))) (let ((.cse9 (fp.geq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 20.0))) (.cse10 (fp.leq c_ULTIMATE.start_main_~a~0 ((_ to_fp 11 53) c_currentRoundingMode 30.0)))) (or (and (= c_ULTIMATE.start_assume_abort_if_not_~cond (_ bv1 32)) .cse9 .cse10) (and .cse0 (or (not .cse9) (not .cse10))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2021-10-21 20:35:48,415 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-10-21 20:35:48,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-21 20:35:48,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-10-21 20:35:48,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-10-21 20:35:48,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:35:48,617 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:260) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:829) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1058) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:960) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:182) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:864) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:778) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.refineAbstractionInternal(AbstractCegarLoop.java:462) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:420) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:237) ... 49 more [2021-10-21 20:35:48,620 INFO L168 Benchmark]: Toolchain (without parser) took 567066.27 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.7 MB in the beginning and 41.5 MB in the end (delta: -10.9 MB). Peak memory consumption was 2.7 MB. Max. memory is 16.1 GB. [2021-10-21 20:35:48,621 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:35:48,622 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.82 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 32.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:35:48,622 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.68 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 31.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:35:48,624 INFO L168 Benchmark]: Boogie Preprocessor took 62.20 ms. Allocated memory is still 54.5 MB. Free memory was 31.0 MB in the beginning and 29.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:35:48,625 INFO L168 Benchmark]: RCFGBuilder took 2523.49 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 30.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:35:48,626 INFO L168 Benchmark]: TraceAbstraction took 564103.98 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.5 MB in the beginning and 41.5 MB in the end (delta: -11.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:35:48,629 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 54.5 MB. Free memory was 34.4 MB in the beginning and 34.3 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 311.82 ms. Allocated memory is still 54.5 MB. Free memory was 30.5 MB in the beginning and 32.7 MB in the end (delta: -2.3 MB). Peak memory consumption was 9.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 58.68 ms. Allocated memory is still 54.5 MB. Free memory was 32.7 MB in the beginning and 31.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 62.20 ms. Allocated memory is still 54.5 MB. Free memory was 31.0 MB in the beginning and 29.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2523.49 ms. Allocated memory is still 54.5 MB. Free memory was 29.6 MB in the beginning and 30.9 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 564103.98 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.5 MB in the beginning and 41.5 MB in the end (delta: -11.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_836f8fb6-3923-481b-bb81-72a670995b4e/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...