./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i --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_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/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_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/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_078e0060-bcbf-4cc6-8c77-809417b8f753/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 550ce92df70a0cab5dce210b051b3f70343272fc738726df8415162e375fb1d9 ......................................................................................................................................................................................................................................................................................... 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_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/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_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/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_078e0060-bcbf-4cc6-8c77-809417b8f753/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 550ce92df70a0cab5dce210b051b3f70343272fc738726df8415162e375fb1d9 ....................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-21 20:22:22,514 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:22:22,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:22:22,558 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:22:22,559 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:22:22,561 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:22:22,563 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:22:22,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:22:22,568 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:22:22,569 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:22:22,570 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:22:22,572 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:22:22,573 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:22:22,574 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:22:22,576 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:22:22,577 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:22:22,585 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:22:22,586 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:22:22,588 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:22:22,591 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:22:22,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:22:22,594 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:22:22,596 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:22:22,597 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:22:22,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:22:22,601 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:22:22,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:22:22,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:22:22,604 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:22:22,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:22:22,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:22:22,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:22:22,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:22:22,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:22:22,610 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:22:22,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:22:22,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:22:22,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:22:22,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:22:22,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:22:22,619 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:22:22,621 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-21 20:22:22,672 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:22:22,672 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:22:22,673 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:22:22,673 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:22:22,677 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:22:22,678 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:22:22,678 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:22:22,678 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:22:22,678 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:22:22,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:22:22,679 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:22:22,679 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:22:22,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:22:22,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:22:22,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:22:22,679 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:22:22,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:22:22,680 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:22:22,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:22:22,680 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:22:22,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:22:22,681 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:22:22,681 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:22:22,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:22:22,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:22:22,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:22:22,682 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:22:22,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-21 20:22:22,682 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:22:22,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:22:22,682 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:22:22,682 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:22:22,683 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_078e0060-bcbf-4cc6-8c77-809417b8f753/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 550ce92df70a0cab5dce210b051b3f70343272fc738726df8415162e375fb1d9 [2021-10-21 20:22:22,966 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:22:23,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:22:23,003 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:22:23,004 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:22:23,005 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:22:23,006 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-10-21 20:22:23,090 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/ecfe1bd27/93100d48306b4bf4aef1daae2bf359c5/FLAG6568cf642 [2021-10-21 20:22:23,719 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:22:23,721 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-10-21 20:22:23,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/ecfe1bd27/93100d48306b4bf4aef1daae2bf359c5/FLAG6568cf642 [2021-10-21 20:22:24,071 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/ecfe1bd27/93100d48306b4bf4aef1daae2bf359c5 [2021-10-21 20:22:24,075 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:22:24,077 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:22:24,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:22:24,082 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:22:24,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:22:24,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32f37853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24, skipping insertion in model container [2021-10-21 20:22:24,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,096 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:22:24,115 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:22:24,330 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_078e0060-bcbf-4cc6-8c77-809417b8f753/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1266,1279] [2021-10-21 20:22:24,334 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:22:24,343 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:22:24,366 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_078e0060-bcbf-4cc6-8c77-809417b8f753/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1266,1279] [2021-10-21 20:22:24,369 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:22:24,385 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:22:24,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24 WrapperNode [2021-10-21 20:22:24,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:22:24,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:22:24,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:22:24,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:22:24,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:22:24,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:22:24,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:22:24,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:22:24,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,467 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,472 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:22:24,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:22:24,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:22:24,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:22:24,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (1/1) ... [2021-10-21 20:22:24,492 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:22:24,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:22:24,528 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:22:24,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:22:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:22:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:22:24,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:22:24,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:22:24,821 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:22:24,822 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-21 20:22:24,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:22:24 BoogieIcfgContainer [2021-10-21 20:22:24,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:22:24,825 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:22:24,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:22:24,832 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:22:24,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:22:24" (1/3) ... [2021-10-21 20:22:24,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700a8c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:22:24, skipping insertion in model container [2021-10-21 20:22:24,833 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:24" (2/3) ... [2021-10-21 20:22:24,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@700a8c9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:22:24, skipping insertion in model container [2021-10-21 20:22:24,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:22:24" (3/3) ... [2021-10-21 20:22:24,836 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2021-10-21 20:22:24,842 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:22:24,843 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:22:24,906 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:22:24,916 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 20:22:24,916 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:22:24,933 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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 20:22:24,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 20:22:24,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:22:24,940 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:22:24,941 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:22:24,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:22:24,947 INFO L82 PathProgramCache]: Analyzing trace with hash 1427287630, now seen corresponding path program 1 times [2021-10-21 20:22:24,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:22:24,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216043186] [2021-10-21 20:22:24,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:22:24,959 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:22:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:22:25,174 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 20:22:25,175 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:22:25,175 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216043186] [2021-10-21 20:22:25,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216043186] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:22:25,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:22:25,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-21 20:22:25,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185910980] [2021-10-21 20:22:25,183 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:22:25,184 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:22:25,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:22:25,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:22:25,216 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 20:22:25,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:22:25,230 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-21 20:22:25,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:22:25,231 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-21 20:22:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:22:25,239 INFO L225 Difference]: With dead ends: 31 [2021-10-21 20:22:25,239 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 20:22:25,242 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 20:22:25,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 20:22:25,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 20:22:25,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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 20:22:25,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-21 20:22:25,272 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 12 [2021-10-21 20:22:25,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:22:25,272 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-21 20:22:25,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 20:22:25,273 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-21 20:22:25,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 20:22:25,273 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:22:25,273 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:22:25,274 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-21 20:22:25,274 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:22:25,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:22:25,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1034260620, now seen corresponding path program 1 times [2021-10-21 20:22:25,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:22:25,275 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990680024] [2021-10-21 20:22:25,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:22:25,276 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:22:25,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:22:25,295 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:22:25,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:22:25,375 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:22:25,376 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:22:25,378 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:22:25,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-21 20:22:25,386 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:22:25,407 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:22:25 BoogieIcfgContainer [2021-10-21 20:22:25,407 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:22:25,408 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:22:25,408 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:22:25,408 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:22:25,409 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:22:24" (3/4) ... [2021-10-21 20:22:25,412 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-21 20:22:25,412 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:22:25,414 INFO L168 Benchmark]: Toolchain (without parser) took 1336.20 ms. Allocated memory is still 113.2 MB. Free memory was 84.3 MB in the beginning and 87.3 MB in the end (delta: -3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:22:25,415 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:22:25,416 INFO L168 Benchmark]: CACSL2BoogieTranslator took 308.38 ms. Allocated memory is still 113.2 MB. Free memory was 84.1 MB in the beginning and 74.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:22:25,416 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.71 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 72.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:22:25,417 INFO L168 Benchmark]: Boogie Preprocessor took 34.15 ms. Allocated memory is still 113.2 MB. Free memory was 72.1 MB in the beginning and 71.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:22:25,418 INFO L168 Benchmark]: RCFGBuilder took 340.23 ms. Allocated memory is still 113.2 MB. Free memory was 71.0 MB in the beginning and 61.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:22:25,418 INFO L168 Benchmark]: TraceAbstraction took 582.14 ms. Allocated memory is still 113.2 MB. Free memory was 61.4 MB in the beginning and 87.7 MB in the end (delta: -26.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:22:25,419 INFO L168 Benchmark]: Witness Printer took 4.70 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 87.3 MB in the end (delta: 425.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:22:25,422 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 52.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 308.38 ms. Allocated memory is still 113.2 MB. Free memory was 84.1 MB in the beginning and 74.0 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 57.71 ms. Allocated memory is still 113.2 MB. Free memory was 73.8 MB in the beginning and 72.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.15 ms. Allocated memory is still 113.2 MB. Free memory was 72.1 MB in the beginning and 71.0 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 340.23 ms. Allocated memory is still 113.2 MB. Free memory was 71.0 MB in the beginning and 61.7 MB in the end (delta: 9.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 582.14 ms. Allocated memory is still 113.2 MB. Free memory was 61.4 MB in the beginning and 87.7 MB in the end (delta: -26.4 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * Witness Printer took 4.70 ms. Allocated memory is still 113.2 MB. Free memory was 87.7 MB in the beginning and 87.3 MB in the end (delta: 425.0 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: 42]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 31, overapproximation of someBinaryDOUBLEComparisonOperation at line 41, overapproximation of someBinaryArithmeticFLOAToperation at line 37. Possible FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L35] x = x - f(x)/fp(x) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L37] x = x - f(x)/fp(x) [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 479.8ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.5ms, AutomataDifference: 57.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 13.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 15.6ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.9ms SsaConstructionTime, 50.4ms SatisfiabilityAnalysisTime, 90.2ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-21 20:22:25,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/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 20:22:27,998 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:22:28,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:22:28,033 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:22:28,038 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:22:28,043 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:22:28,046 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:22:28,053 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:22:28,057 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:22:28,063 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:22:28,064 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:22:28,066 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:22:28,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:22:28,070 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:22:28,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:22:28,075 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:22:28,077 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:22:28,081 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:22:28,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:22:28,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:22:28,097 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:22:28,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:22:28,102 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:22:28,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:22:28,114 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:22:28,115 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:22:28,115 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:22:28,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:22:28,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:22:28,119 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:22:28,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:22:28,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:22:28,124 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:22:28,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:22:28,126 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:22:28,127 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:22:28,148 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:22:28,149 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:22:28,149 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:22:28,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:22:28,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:22:28,153 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-10-21 20:22:28,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:22:28,203 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:22:28,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:22:28,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:22:28,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:22:28,207 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:22:28,207 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:22:28,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:22:28,208 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:22:28,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:22:28,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:22:28,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-21 20:22:28,210 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-21 20:22:28,210 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-21 20:22:28,210 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-21 20:22:28,211 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-21 20:22:28,211 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:22:28,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:22:28,211 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:22:28,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-21 20:22:28,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:22:28,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:22:28,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-21 20:22:28,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:22:28,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:22:28,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-21 20:22:28,214 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-21 20:22:28,214 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-10-21 20:22:28,214 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-21 20:22:28,214 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-21 20:22:28,215 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-21 20:22:28,215 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-21 20:22:28,215 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:22:28,216 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-21 20:22:28,216 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_078e0060-bcbf-4cc6-8c77-809417b8f753/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 550ce92df70a0cab5dce210b051b3f70343272fc738726df8415162e375fb1d9 [2021-10-21 20:22:28,623 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:22:28,657 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:22:28,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:22:28,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:22:28,664 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:22:28,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-10-21 20:22:28,751 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/d75f702a4/357ac38edbe64cb5b7863e5f5ced8ef5/FLAG30dcf4713 [2021-10-21 20:22:29,365 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:22:29,366 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/sv-benchmarks/c/floats-cdfpl/newton_3_7.i [2021-10-21 20:22:29,374 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/d75f702a4/357ac38edbe64cb5b7863e5f5ced8ef5/FLAG30dcf4713 [2021-10-21 20:22:29,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/data/d75f702a4/357ac38edbe64cb5b7863e5f5ced8ef5 [2021-10-21 20:22:29,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:22:29,719 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:22:29,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:22:29,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:22:29,728 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:22:29,729 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:29,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c43999f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29, skipping insertion in model container [2021-10-21 20:22:29,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:29,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:22:29,766 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:22:29,934 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_078e0060-bcbf-4cc6-8c77-809417b8f753/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1266,1279] [2021-10-21 20:22:29,937 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:22:29,951 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:22:29,972 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_078e0060-bcbf-4cc6-8c77-809417b8f753/sv-benchmarks/c/floats-cdfpl/newton_3_7.i[1266,1279] [2021-10-21 20:22:29,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:22:29,989 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:22:29,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29 WrapperNode [2021-10-21 20:22:29,990 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:22:29,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:22:29,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:22:29,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:22:30,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,024 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:22:30,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:22:30,051 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:22:30,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:22:30,060 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,075 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,077 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,081 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:22:30,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:22:30,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:22:30,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:22:30,087 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (1/1) ... [2021-10-21 20:22:30,104 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-21 20:22:30,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:22:30,136 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-21 20:22:30,190 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-21 20:22:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-21 20:22:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:22:30,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:22:30,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:22:46,365 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:22:46,366 INFO L299 CfgBuilder]: Removed 18 assume(true) statements. [2021-10-21 20:22:46,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:22:46 BoogieIcfgContainer [2021-10-21 20:22:46,368 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:22:46,370 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-21 20:22:46,370 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-21 20:22:46,373 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-21 20:22:46,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.10 08:22:29" (1/3) ... [2021-10-21 20:22:46,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53826f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:22:46, skipping insertion in model container [2021-10-21 20:22:46,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:22:29" (2/3) ... [2021-10-21 20:22:46,375 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53826f7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.10 08:22:46, skipping insertion in model container [2021-10-21 20:22:46,375 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:22:46" (3/3) ... [2021-10-21 20:22:46,377 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_3_7.i [2021-10-21 20:22:46,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-21 20:22:46,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-21 20:22:46,428 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-21 20:22:46,434 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 20:22:46,434 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-21 20:22:46,446 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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 20:22:46,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 20:22:46,451 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:22:46,452 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:22:46,453 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:22:46,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:22:46,459 INFO L82 PathProgramCache]: Analyzing trace with hash 1427287630, now seen corresponding path program 1 times [2021-10-21 20:22:46,489 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:22:46,490 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1621962421] [2021-10-21 20:22:46,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:22:46,491 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:22:46,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:22:46,508 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:22:46,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-21 20:22:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:22:50,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-21 20:22:50,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-21 20:22:50,411 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 20:22:50,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-21 20:22:50,527 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 20:22:50,528 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-10-21 20:22:50,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1621962421] [2021-10-21 20:22:50,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1621962421] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-21 20:22:50,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:22:50,530 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-21 20:22:50,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504765218] [2021-10-21 20:22:50,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-21 20:22:50,537 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-10-21 20:22:50,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-21 20:22:50,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-21 20:22:50,554 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.2) internal successors, (18), 16 states have internal predecessors, (18), 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 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 20:22:50,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:22:50,569 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2021-10-21 20:22:50,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-21 20:22:50,571 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-10-21 20:22:50,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-21 20:22:50,579 INFO L225 Difference]: With dead ends: 31 [2021-10-21 20:22:50,579 INFO L226 Difference]: Without dead ends: 13 [2021-10-21 20:22:50,582 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 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 20:22:50,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-10-21 20:22:50,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-10-21 20:22:50,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.0) internal successors, (12), 12 states have internal predecessors, (12), 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 20:22:50,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 12 transitions. [2021-10-21 20:22:50,611 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 12 transitions. Word has length 12 [2021-10-21 20:22:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-21 20:22:50,612 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 12 transitions. [2021-10-21 20:22:50,613 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 20:22:50,613 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 12 transitions. [2021-10-21 20:22:50,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-21 20:22:50,614 INFO L504 BasicCegarLoop]: Found error trace [2021-10-21 20:22:50,614 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:22:50,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-10-21 20:22:50,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:22:50,820 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-21 20:22:50,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:22:50,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1034260620, now seen corresponding path program 1 times [2021-10-21 20:22:50,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-10-21 20:22:50,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1329774297] [2021-10-21 20:22:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:22:50,822 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-21 20:22:50,823 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat [2021-10-21 20:22:50,824 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-21 20:22:50,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-21 20:23:20,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:20,614 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:26:34,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:26:34,848 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-10-21 20:26:34,849 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-21 20:26:34,850 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-21 20:26:34,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-21 20:26:35,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/mathsat -unsat_core_generation=3 [2021-10-21 20:26:35,057 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-21 20:26:35,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.10 08:26:35 BoogieIcfgContainer [2021-10-21 20:26:35,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-21 20:26:35,088 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:26:35,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:26:35,089 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:26:35,089 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:22:46" (3/4) ... [2021-10-21 20:26:35,091 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-21 20:26:35,149 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:26:35,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:26:35,159 INFO L168 Benchmark]: Toolchain (without parser) took 245433.79 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 39.1 MB in the beginning and 47.2 MB in the end (delta: -8.1 MB). Peak memory consumption was 21.6 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:35,160 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 60.8 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:26:35,161 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.47 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 28.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:35,162 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.37 ms. Allocated memory is still 60.8 MB. Free memory was 28.2 MB in the beginning and 44.0 MB in the end (delta: -15.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:35,162 INFO L168 Benchmark]: Boogie Preprocessor took 33.69 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 42.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:35,163 INFO L168 Benchmark]: RCFGBuilder took 16282.28 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 32.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:35,163 INFO L168 Benchmark]: TraceAbstraction took 228717.83 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 32.0 MB in the beginning and 49.3 MB in the end (delta: -17.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:35,164 INFO L168 Benchmark]: Witness Printer took 63.93 ms. Allocated memory is still 88.1 MB. Free memory was 49.3 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:35,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 60.8 MB. Free memory is still 41.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 266.47 ms. Allocated memory is still 60.8 MB. Free memory was 38.9 MB in the beginning and 28.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 59.37 ms. Allocated memory is still 60.8 MB. Free memory was 28.2 MB in the beginning and 44.0 MB in the end (delta: -15.8 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.69 ms. Allocated memory is still 60.8 MB. Free memory was 44.0 MB in the beginning and 42.7 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 16282.28 ms. Allocated memory is still 60.8 MB. Free memory was 42.7 MB in the beginning and 32.4 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 228717.83 ms. Allocated memory was 60.8 MB in the beginning and 88.1 MB in the end (delta: 27.3 MB). Free memory was 32.0 MB in the beginning and 49.3 MB in the end (delta: -17.3 MB). Peak memory consumption was 10.1 MB. Max. memory is 16.1 GB. * Witness Printer took 63.93 ms. Allocated memory is still 88.1 MB. Free memory was 49.3 MB in the beginning and 47.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. 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 - CounterExampleResult [Line: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L30] float IN = __VERIFIER_nondet_float(); [L15] COND FALSE !(!cond) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L33] float x = IN - f(IN)/fp(IN); [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L35] x = x - f(x)/fp(x) [L20] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; [L25] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; [L37] x = x - f(x)/fp(x) [L41] COND TRUE !(x < 0.1) [L42] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 228629.7ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.0ms, AutomataDifference: 43.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 7.7ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 16 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 16.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 54.2ms SsaConstructionTime, 33226.5ms SatisfiabilityAnalysisTime, 442.7ms InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 SizeOfPredicates, 0 NumberOfNonLiveVariables, 48 ConjunctsInSsa, 1 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 proved your program to be incorrect! [2021-10-21 20:26:35,373 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_078e0060-bcbf-4cc6-8c77-809417b8f753/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...