./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL --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 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:18:17,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:18:17,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:18:17,119 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:18:17,120 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:18:17,125 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:18:17,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:18:17,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:18:17,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:18:17,145 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:18:17,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:18:17,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:18:17,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:18:17,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:18:17,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:18:17,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:18:17,164 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:18:17,166 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:18:17,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:18:17,180 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:18:17,183 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:18:17,185 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:18:17,190 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:18:17,192 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:18:17,205 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:18:17,205 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:18:17,206 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:18:17,209 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:18:17,210 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:18:17,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:18:17,213 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:18:17,214 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:18:17,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:18:17,219 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:18:17,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:18:17,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:18:17,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:18:17,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:18:17,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:18:17,225 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:18:17,226 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:18:17,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 05:18:17,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:18:17,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:18:17,285 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:18:17,285 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:18:17,294 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:18:17,295 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:18:17,296 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:18:17,297 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:18:17,297 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:18:17,298 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:18:17,299 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:18:17,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 05:18:17,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:18:17,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:18:17,301 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:18:17,301 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:18:17,302 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:18:17,302 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:18:17,302 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:18:17,303 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:18:17,303 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:18:17,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:18:17,304 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:18:17,304 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:18:17,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:17,305 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:18:17,305 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:18:17,306 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:18:17,306 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 05:18:17,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 05:18:17,309 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:18:17,309 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:18:17,310 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:18:17,310 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:18:17,310 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_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2021-11-19 05:18:17,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:18:17,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:18:17,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:18:17,745 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:18:17,746 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:18:17,748 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-11-19 05:18:17,831 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/b83866591/476b252215754eddb527f82c1dd28c78/FLAG310b6bf77 [2021-11-19 05:18:18,452 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:18:18,453 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-11-19 05:18:18,462 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/b83866591/476b252215754eddb527f82c1dd28c78/FLAG310b6bf77 [2021-11-19 05:18:18,825 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/b83866591/476b252215754eddb527f82c1dd28c78 [2021-11-19 05:18:18,829 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:18:18,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:18:18,833 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:18,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:18:18,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:18:18,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:18" (1/1) ... [2021-11-19 05:18:18,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7755cc1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:18, skipping insertion in model container [2021-11-19 05:18:18,843 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:18" (1/1) ... [2021-11-19 05:18:18,859 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:18:18,881 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:18:19,189 WARN L230 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_572fa4d3-669d-4ad6-9149-729d858d6642/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2021-11-19 05:18:19,195 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:19,215 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:18:19,257 WARN L230 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_572fa4d3-669d-4ad6-9149-729d858d6642/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2021-11-19 05:18:19,263 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:19,287 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:18:19,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19 WrapperNode [2021-11-19 05:18:19,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:19,290 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:19,290 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:18:19,290 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:18:19,300 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,339 INFO L137 Inliner]: procedures = 17, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 30 [2021-11-19 05:18:19,340 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:19,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:18:19,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:18:19,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:18:19,351 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,365 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,365 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,373 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:18:19,377 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:18:19,377 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:18:19,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:18:19,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (1/1) ... [2021-11-19 05:18:19,391 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:19,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:18:19,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:18:19,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:18:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:18:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 05:18:19,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:18:19,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:18:19,578 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:18:19,579 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:18:19,680 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:18:19,687 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:18:19,687 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:18:19,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:19 BoogieIcfgContainer [2021-11-19 05:18:19,690 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:18:19,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:18:19,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:18:19,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:18:19,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:18" (1/3) ... [2021-11-19 05:18:19,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f295c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:19, skipping insertion in model container [2021-11-19 05:18:19,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:19" (2/3) ... [2021-11-19 05:18:19,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f295c92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:19, skipping insertion in model container [2021-11-19 05:18:19,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:19" (3/3) ... [2021-11-19 05:18:19,719 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2021-11-19 05:18:19,725 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:18:19,725 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:18:19,781 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:18:19,788 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 [2021-11-19 05:18:19,789 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:18:19,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-11-19 05:18:19,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 05:18:19,811 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:19,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:18:19,813 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:19,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:19,820 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-11-19 05:18:19,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:18:19,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251146941] [2021-11-19 05:18:19,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:18:19,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:18:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:18:19,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:19,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 05:18:19,986 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251146941] [2021-11-19 05:18:19,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251146941] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 05:18:19,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:18:19,988 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 05:18:19,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741799393] [2021-11-19 05:18:19,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 05:18:19,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:18:19,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 05:18:20,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:18:20,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:18:20,039 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-19 05:18:20,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:18:20,068 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-11-19 05:18:20,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:18:20,071 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-19 05:18:20,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:18:20,083 INFO L225 Difference]: With dead ends: 23 [2021-11-19 05:18:20,083 INFO L226 Difference]: Without dead ends: 9 [2021-11-19 05:18:20,088 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:18:20,097 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:18:20,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:18:20,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-19 05:18:20,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-19 05:18:20,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2021-11-19 05:18:20,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-11-19 05:18:20,144 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-11-19 05:18:20,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:18:20,145 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-11-19 05:18:20,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-19 05:18:20,146 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-11-19 05:18:20,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 05:18:20,147 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:20,148 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:18:20,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 05:18:20,149 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:20,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:20,156 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-11-19 05:18:20,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 05:18:20,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591779638] [2021-11-19 05:18:20,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:18:20,157 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 05:18:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:18:20,192 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:18:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:18:20,256 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-19 05:18:20,257 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:18:20,260 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:18:20,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 05:18:20,271 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 05:18:20,276 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:18:20,326 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:18:20 BoogieIcfgContainer [2021-11-19 05:18:20,327 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:18:20,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:18:20,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:18:20,331 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:18:20,332 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:19" (3/4) ... [2021-11-19 05:18:20,336 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-19 05:18:20,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:18:20,340 INFO L158 Benchmark]: Toolchain (without parser) took 1507.57ms. Allocated memory is still 115.3MB. Free memory was 76.1MB in the beginning and 55.3MB in the end (delta: 20.8MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2021-11-19 05:18:20,340 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 115.3MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:18:20,343 INFO L158 Benchmark]: CACSL2BoogieTranslator took 456.09ms. Allocated memory is still 115.3MB. Free memory was 75.9MB in the beginning and 89.4MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 05:18:20,347 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.93ms. Allocated memory is still 115.3MB. Free memory was 89.4MB in the beginning and 87.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:18:20,349 INFO L158 Benchmark]: Boogie Preprocessor took 35.74ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 86.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:18:20,354 INFO L158 Benchmark]: RCFGBuilder took 313.13ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 77.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:18:20,355 INFO L158 Benchmark]: TraceAbstraction took 635.60ms. Allocated memory is still 115.3MB. Free memory was 77.4MB in the beginning and 55.9MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2021-11-19 05:18:20,356 INFO L158 Benchmark]: Witness Printer took 7.48ms. Allocated memory is still 115.3MB. Free memory was 55.9MB in the beginning and 55.3MB in the end (delta: 511.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:18:20,362 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 115.3MB. Free memory is still 92.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 456.09ms. Allocated memory is still 115.3MB. Free memory was 75.9MB in the beginning and 89.4MB in the end (delta: -13.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.93ms. Allocated memory is still 115.3MB. Free memory was 89.4MB in the beginning and 87.9MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.74ms. Allocated memory is still 115.3MB. Free memory was 87.9MB in the beginning and 86.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.13ms. Allocated memory is still 115.3MB. Free memory was 86.8MB in the beginning and 77.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 635.60ms. Allocated memory is still 115.3MB. Free memory was 77.4MB in the beginning and 55.9MB in the end (delta: 21.6MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 7.48ms. Allocated memory is still 115.3MB. Free memory was 55.9MB in the beginning and 55.3MB in the end (delta: 511.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: 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 40, overapproximation of someBinaryDOUBLEComparisonOperation at line 50, overapproximation of someBinaryArithmeticFLOAToperation at line 42. Possible FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=49, x=49] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=49] [L51] reach_error() VAL [IN=49] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2021-11-19 05:18:20,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL --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 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 05:18:23,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 05:18:23,448 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 05:18:23,498 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 05:18:23,499 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 05:18:23,500 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 05:18:23,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 05:18:23,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 05:18:23,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 05:18:23,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 05:18:23,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 05:18:23,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 05:18:23,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 05:18:23,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 05:18:23,522 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 05:18:23,524 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 05:18:23,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 05:18:23,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 05:18:23,530 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 05:18:23,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 05:18:23,537 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 05:18:23,539 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 05:18:23,541 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 05:18:23,543 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 05:18:23,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 05:18:23,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 05:18:23,550 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 05:18:23,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 05:18:23,552 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 05:18:23,554 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 05:18:23,555 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 05:18:23,557 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 05:18:23,558 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 05:18:23,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 05:18:23,562 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 05:18:23,562 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 05:18:23,564 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 05:18:23,564 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 05:18:23,565 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 05:18:23,567 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 05:18:23,569 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 05:18:23,570 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-19 05:18:23,607 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 05:18:23,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 05:18:23,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 05:18:23,609 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 05:18:23,611 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 05:18:23,611 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 05:18:23,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 05:18:23,613 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 05:18:23,613 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 05:18:23,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 05:18:23,614 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 05:18:23,615 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 05:18:23,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 05:18:23,616 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 05:18:23,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 05:18:23,617 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 05:18:23,617 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-19 05:18:23,617 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-19 05:18:23,618 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 05:18:23,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 05:18:23,619 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 05:18:23,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 05:18:23,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 05:18:23,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 05:18:23,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 05:18:23,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:23,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 05:18:23,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 05:18:23,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 05:18:23,623 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-19 05:18:23,623 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-19 05:18:23,623 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 05:18:23,624 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 05:18:23,624 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 05:18:23,625 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 05:18:23,625 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 05:18:23,625 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_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 234fd12d8ab62ad46eb1a577fb23fc2fed6d2544e4a70d4980d962436da7c61e [2021-11-19 05:18:24,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 05:18:24,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 05:18:24,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 05:18:24,188 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 05:18:24,189 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 05:18:24,191 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-11-19 05:18:24,293 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/442f96dd6/8f22fa9d71a44c51b78f670955202273/FLAGcb6a92620 [2021-11-19 05:18:25,008 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 05:18:25,010 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/sv-benchmarks/c/floats-cdfpl/newton_1_5.i [2021-11-19 05:18:25,021 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/442f96dd6/8f22fa9d71a44c51b78f670955202273/FLAGcb6a92620 [2021-11-19 05:18:25,354 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/data/442f96dd6/8f22fa9d71a44c51b78f670955202273 [2021-11-19 05:18:25,360 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 05:18:25,363 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 05:18:25,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:25,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 05:18:25,371 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 05:18:25,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,375 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4893f3dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25, skipping insertion in model container [2021-11-19 05:18:25,375 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 05:18:25,407 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 05:18:25,698 WARN L230 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_572fa4d3-669d-4ad6-9149-729d858d6642/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2021-11-19 05:18:25,705 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:25,726 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 05:18:25,788 WARN L230 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_572fa4d3-669d-4ad6-9149-729d858d6642/sv-benchmarks/c/floats-cdfpl/newton_1_5.i[1722,1735] [2021-11-19 05:18:25,789 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 05:18:25,830 INFO L208 MainTranslator]: Completed translation [2021-11-19 05:18:25,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25 WrapperNode [2021-11-19 05:18:25,833 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 05:18:25,835 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:25,835 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 05:18:25,835 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 05:18:25,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,872 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,912 INFO L137 Inliner]: procedures = 18, calls = 9, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 31 [2021-11-19 05:18:25,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 05:18:25,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 05:18:25,916 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 05:18:25,916 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 05:18:25,929 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,940 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,968 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 05:18:25,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 05:18:25,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 05:18:25,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 05:18:25,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (1/1) ... [2021-11-19 05:18:25,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 05:18:26,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 05:18:26,026 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 05:18:26,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 05:18:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 05:18:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-19 05:18:26,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 05:18:26,090 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 05:18:26,182 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 05:18:26,184 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 05:18:32,272 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 05:18:32,280 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 05:18:32,280 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-19 05:18:32,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:32 BoogieIcfgContainer [2021-11-19 05:18:32,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 05:18:32,284 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 05:18:32,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 05:18:32,288 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 05:18:32,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 05:18:25" (1/3) ... [2021-11-19 05:18:32,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e86662e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:32, skipping insertion in model container [2021-11-19 05:18:32,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 05:18:25" (2/3) ... [2021-11-19 05:18:32,291 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e86662e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 05:18:32, skipping insertion in model container [2021-11-19 05:18:32,291 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:32" (3/3) ... [2021-11-19 05:18:32,293 INFO L111 eAbstractionObserver]: Analyzing ICFG newton_1_5.i [2021-11-19 05:18:32,300 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 05:18:32,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 05:18:32,364 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 05:18:32,382 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 [2021-11-19 05:18:32,382 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 05:18:32,406 INFO L276 IsEmpty]: Start isEmpty. Operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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) [2021-11-19 05:18:32,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 05:18:32,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:32,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:18:32,415 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:32,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:32,423 INFO L85 PathProgramCache]: Analyzing trace with hash 119351050, now seen corresponding path program 1 times [2021-11-19 05:18:32,438 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:18:32,439 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1533527737] [2021-11-19 05:18:32,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:18:32,440 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:18:32,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:18:32,444 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:18:32,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-19 05:18:33,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 05:18:34,028 INFO L263 TraceCheckSpWp]: Trace formula consists of 26 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-19 05:18:34,032 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 05:18:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:34,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 05:18:34,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 05:18:34,192 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-19 05:18:34,192 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1533527737] [2021-11-19 05:18:34,193 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1533527737] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 05:18:34,194 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-19 05:18:34,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-19 05:18:34,196 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62987123] [2021-11-19 05:18:34,198 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 05:18:34,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 05:18:34,207 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-19 05:18:34,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 05:18:34,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:18:34,245 INFO L87 Difference]: Start difference. First operand has 13 states, 11 states have (on average 1.2727272727272727) internal successors, (14), 12 states have internal predecessors, (14), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-19 05:18:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 05:18:34,262 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2021-11-19 05:18:34,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 05:18:34,264 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2021-11-19 05:18:34,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 05:18:34,274 INFO L225 Difference]: With dead ends: 23 [2021-11-19 05:18:34,274 INFO L226 Difference]: Without dead ends: 9 [2021-11-19 05:18:34,277 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 05:18:34,282 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 05:18:34,284 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 05:18:34,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2021-11-19 05:18:34,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2021-11-19 05:18:34,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.0) internal successors, (8), 8 states have internal predecessors, (8), 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) [2021-11-19 05:18:34,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2021-11-19 05:18:34,321 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2021-11-19 05:18:34,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 05:18:34,321 INFO L470 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2021-11-19 05:18:34,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2021-11-19 05:18:34,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2021-11-19 05:18:34,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 05:18:34,323 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 05:18:34,323 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 05:18:34,368 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-19 05:18:34,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:18:34,544 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 05:18:34,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 05:18:34,545 INFO L85 PathProgramCache]: Analyzing trace with hash 176609352, now seen corresponding path program 1 times [2021-11-19 05:18:34,546 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-19 05:18:34,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [931125802] [2021-11-19 05:18:34,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 05:18:34,547 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-19 05:18:34,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat [2021-11-19 05:18:34,549 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-19 05:18:34,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-19 05:18:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:18:55,031 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 05:21:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 05:21:49,535 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-11-19 05:21:49,536 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 05:21:49,539 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 05:21:49,596 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-11-19 05:21:49,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/mathsat -unsat_core_generation=3 [2021-11-19 05:21:49,753 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-19 05:21:49,758 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 05:21:49,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 05:21:49 BoogieIcfgContainer [2021-11-19 05:21:49,806 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 05:21:49,807 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 05:21:49,807 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 05:21:49,807 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 05:21:49,808 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 05:18:32" (3/4) ... [2021-11-19 05:21:49,811 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 05:21:49,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 05:21:49,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 05:21:49,864 INFO L158 Benchmark]: Toolchain (without parser) took 204501.40ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 58.7MB in the beginning and 67.8MB in the end (delta: -9.1MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-11-19 05:21:49,865 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 75.5MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:21:49,866 INFO L158 Benchmark]: CACSL2BoogieTranslator took 467.76ms. Allocated memory is still 75.5MB. Free memory was 58.5MB in the beginning and 57.5MB in the end (delta: 1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-19 05:21:49,867 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.72ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 55.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 05:21:49,867 INFO L158 Benchmark]: Boogie Preprocessor took 63.77ms. Allocated memory is still 75.5MB. Free memory was 55.8MB in the beginning and 54.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:21:49,868 INFO L158 Benchmark]: RCFGBuilder took 6302.24ms. Allocated memory is still 75.5MB. Free memory was 54.4MB in the beginning and 45.8MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-19 05:21:49,869 INFO L158 Benchmark]: TraceAbstraction took 197521.31ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 45.3MB in the beginning and 69.9MB in the end (delta: -24.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. [2021-11-19 05:21:49,870 INFO L158 Benchmark]: Witness Printer took 56.55ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 05:21:49,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 75.5MB. Free memory is still 56.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 467.76ms. Allocated memory is still 75.5MB. Free memory was 58.5MB in the beginning and 57.5MB in the end (delta: 1.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 79.72ms. Allocated memory is still 75.5MB. Free memory was 57.5MB in the beginning and 55.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 63.77ms. Allocated memory is still 75.5MB. Free memory was 55.8MB in the beginning and 54.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 6302.24ms. Allocated memory is still 75.5MB. Free memory was 54.4MB in the beginning and 45.8MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 197521.31ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 45.3MB in the beginning and 69.9MB in the end (delta: -24.6MB). Peak memory consumption was 3.7MB. Max. memory is 16.1GB. * Witness Printer took 56.55ms. Allocated memory is still 100.7MB. Free memory was 69.9MB in the beginning and 67.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 51]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L39] float IN = __VERIFIER_nondet_float(); [L40] CALL assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(IN > -1.0f && IN < 1.0f) [L42] CALL, EXPR f(IN) [L29] return x - (x*x*x)/6.0f + (x*x*x*x*x)/120.0f + (x*x*x*x*x*x*x)/5040.0f; VAL [\old(x)=-0.9975347518920898, \result=-0.8405237793922424, x=-0.9975347518920898] [L42] RET, EXPR f(IN) [L42] CALL, EXPR fp(IN) [L34] return 1 - (x*x)/2.0f + (x*x*x*x)/24.0f + (x*x*x*x*x*x)/720.0f; VAL [\old(x)=-0.9975347518920898, \result=0.545087993144989, x=-0.9975347518920898] [L42] RET, EXPR fp(IN) [L42] float x = IN - f(IN)/fp(IN); [L50] COND TRUE !(x < 0.1) VAL [IN=-0.9975347518920898, x=0.544461727142334] [L51] reach_error() VAL [IN=-0.9975347518920898, x=0.544461727142334] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 197.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 21.9s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 SizeOfPredicates, 0 NumberOfNonLiveVariables, 26 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! [2021-11-19 05:21:50,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_572fa4d3-669d-4ad6-9149-729d858d6642/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE