./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G --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 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:24:22,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:24:22,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:24:22,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:24:22,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:24:22,213 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:24:22,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:24:22,219 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:24:22,221 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:24:22,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:24:22,224 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:24:22,226 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:24:22,226 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:24:22,228 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:24:22,230 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:24:22,231 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:24:22,233 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:24:22,234 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:24:22,236 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:24:22,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:24:22,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:24:22,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:24:22,247 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:24:22,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:24:22,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:24:22,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:24:22,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:24:22,255 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:24:22,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:24:22,257 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:24:22,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:24:22,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:24:22,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:24:22,261 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:24:22,262 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:24:22,263 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:24:22,264 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:24:22,264 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:24:22,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:24:22,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:24:22,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:24:22,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 12:24:22,314 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:24:22,323 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:24:22,325 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:24:22,325 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:24:22,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:24:22,333 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:24:22,334 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:24:22,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:24:22,335 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:24:22,335 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:24:22,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:24:22,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:24:22,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:24:22,337 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:24:22,337 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:24:22,337 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:24:22,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:24:22,338 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:24:22,338 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:24:22,338 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:24:22,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:24:22,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:24:22,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:24:22,339 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:24:22,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:24:22,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:24:22,340 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:24:22,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:24:22,341 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:24:22,342 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:24:22,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:24:22,343 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:24:22,343 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_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 [2021-11-23 12:24:22,622 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:24:22,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:24:22,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:24:22,663 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:24:22,664 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:24:22,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-23 12:24:22,727 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/3f5692052/06d2ff4adc584bdbbfbab09cff6dd2e3/FLAG2b32a34d9 [2021-11-23 12:24:23,214 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:24:23,223 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-23 12:24:23,234 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/3f5692052/06d2ff4adc584bdbbfbab09cff6dd2e3/FLAG2b32a34d9 [2021-11-23 12:24:23,585 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/3f5692052/06d2ff4adc584bdbbfbab09cff6dd2e3 [2021-11-23 12:24:23,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:24:23,590 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:24:23,595 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:24:23,595 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:24:23,599 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:24:23,600 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40035a50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23, skipping insertion in model container [2021-11-23 12:24:23,603 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:24:23,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:24:23,767 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_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-23 12:24:23,842 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:24:23,853 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:24:23,870 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_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-23 12:24:23,885 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:24:23,902 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:24:23,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23 WrapperNode [2021-11-23 12:24:23,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:24:23,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:24:23,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:24:23,905 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:24:23,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,940 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 73 [2021-11-23 12:24:23,941 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:24:23,942 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:24:23,942 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:24:23,942 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:24:23,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,951 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,951 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,965 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:24:23,966 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:24:23,966 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:24:23,966 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:24:23,967 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (1/1) ... [2021-11-23 12:24:23,981 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:24:23,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:24:24,011 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:24:24,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:24:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:24:24,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:24:24,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:24:24,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:24:24,112 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:24:24,114 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:24:24,249 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:24:24,257 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:24:24,257 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 12:24:24,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:24 BoogieIcfgContainer [2021-11-23 12:24:24,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:24:24,260 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:24:24,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:24:24,264 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:24:24,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:24:23" (1/3) ... [2021-11-23 12:24:24,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36407eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:24:24, skipping insertion in model container [2021-11-23 12:24:24,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:23" (2/3) ... [2021-11-23 12:24:24,266 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36407eaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:24:24, skipping insertion in model container [2021-11-23 12:24:24,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:24" (3/3) ... [2021-11-23 12:24:24,267 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Newton_pseudoconstant.c [2021-11-23 12:24:24,273 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:24:24,273 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:24:24,317 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:24:24,324 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 [2021-11-23 12:24:24,325 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 12:24:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-11-23 12:24:24,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 12:24:24,345 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:24:24,345 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:24:24,346 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:24:24,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:24:24,352 INFO L85 PathProgramCache]: Analyzing trace with hash 1569195288, now seen corresponding path program 1 times [2021-11-23 12:24:24,361 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:24:24,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94368742] [2021-11-23 12:24:24,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:24:24,363 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:24:24,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:24:24,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:24:24,493 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:24:24,493 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94368742] [2021-11-23 12:24:24,494 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94368742] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:24:24,494 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:24:24,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:24:24,496 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546540386] [2021-11-23 12:24:24,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:24:24,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:24:24,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:24:24,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:24:24,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:24:24,534 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-11-23 12:24:24,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:24:24,548 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2021-11-23 12:24:24,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:24:24,551 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 [2021-11-23 12:24:24,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:24:24,558 INFO L225 Difference]: With dead ends: 36 [2021-11-23 12:24:24,558 INFO L226 Difference]: Without dead ends: 15 [2021-11-23 12:24:24,561 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 [2021-11-23 12:24:24,566 INFO L933 BasicCegarLoop]: 21 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, 21 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 [2021-11-23 12:24:24,567 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:24:24,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-23 12:24:24,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-23 12:24:24,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:24:24,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-23 12:24:24,600 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2021-11-23 12:24:24,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:24:24,601 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-23 12:24:24,601 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) [2021-11-23 12:24:24,602 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-23 12:24:24,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 12:24:24,602 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:24:24,602 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:24:24,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:24:24,603 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:24:24,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:24:24,604 INFO L85 PathProgramCache]: Analyzing trace with hash -2049407722, now seen corresponding path program 1 times [2021-11-23 12:24:24,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:24:24,605 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064517208] [2021-11-23 12:24:24,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:24:24,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:24:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:24:24,635 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:24:24,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:24:24,713 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:24:24,728 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 12:24:24,731 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 12:24:24,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:24:24,737 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 12:24:24,741 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 12:24:24,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:24:24 BoogieIcfgContainer [2021-11-23 12:24:24,776 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 12:24:24,777 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:24:24,777 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:24:24,777 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:24:24,778 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:24" (3/4) ... [2021-11-23 12:24:24,781 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 12:24:24,782 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:24:24,783 INFO L158 Benchmark]: Toolchain (without parser) took 1191.91ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 61.4MB in the beginning and 94.5MB in the end (delta: -33.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:24:24,783 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:24:24,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.32ms. Allocated memory is still 98.6MB. Free memory was 61.3MB in the beginning and 73.5MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 12:24:24,785 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.07ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:24:24,786 INFO L158 Benchmark]: Boogie Preprocessor took 23.27ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 70.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:24:24,786 INFO L158 Benchmark]: RCFGBuilder took 293.64ms. Allocated memory is still 98.6MB. Free memory was 70.5MB in the beginning and 60.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 12:24:24,787 INFO L158 Benchmark]: TraceAbstraction took 515.77ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 60.4MB in the beginning and 95.1MB in the end (delta: -34.8MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2021-11-23 12:24:24,788 INFO L158 Benchmark]: Witness Printer took 4.98ms. Allocated memory is still 119.5MB. Free memory was 95.1MB in the beginning and 94.5MB in the end (delta: 589.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:24:24,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 98.6MB. Free memory is still 78.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.32ms. Allocated memory is still 98.6MB. Free memory was 61.3MB in the beginning and 73.5MB in the end (delta: -12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.07ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 71.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.27ms. Allocated memory is still 98.6MB. Free memory was 71.9MB in the beginning and 70.5MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 293.64ms. Allocated memory is still 98.6MB. Free memory was 70.5MB in the beginning and 60.6MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 515.77ms. Allocated memory was 98.6MB in the beginning and 119.5MB in the end (delta: 21.0MB). Free memory was 60.4MB in the beginning and 95.1MB in the end (delta: -34.8MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * Witness Printer took 4.98ms. Allocated memory is still 119.5MB. Free memory was 95.1MB in the beginning and 94.5MB in the end (delta: 589.7kB). 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: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 52, overapproximation of someUnaryDOUBLEoperation at line 25, overapproximation of someBinaryArithmeticDOUBLEoperation at line 37. Possible FailurePath: [L15] double _EPS = 1e-6; VAL [_EPS=1/1000000] [L42] double d, dd, r; [L43] double epsilon = 1e-8; [L45] d = 1. VAL [_EPS=1/1000000, d=1, epsilon=1/100000000] [L45] COND TRUE d <= 20. [L47] dd = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L11] COND FALSE !(!cond) VAL [\old(cond)=1, _EPS=1/1000000, cond=1] [L48] RET assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L50] CALL, EXPR SqrtR(dd) [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; VAL [\old(Input)=50, _EPS=1/1000000, Input=50] [L21] COND TRUE Input <= 1.0 [L21] xn = 1.0 VAL [\old(Input)=50, _EPS=1/1000000, Input=50, xn=1] [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 VAL [\old(Input)=50, _EPS=1/1000000, cond=0, i=0, Input=50, xn=1, xn=1] [L28] COND FALSE !(\read(cond)) VAL [\old(Input)=50, _EPS=1/1000000, cond=0, i=0, Input=50, xn=1, xn=1] [L37] return 1.0 / xnp1; VAL [\old(Input)=50, _EPS=1/1000000, cond=0, i=0, Input=50, xn=1, xn=1] [L50] RET, EXPR SqrtR(dd) [L50] r = SqrtR(dd) [L52] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) [L13] COND TRUE !(cond) VAL [\old(cond)=0, _EPS=1/1000000, cond=0] [L13] reach_error() VAL [\old(cond)=0, _EPS=1/1000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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, 21 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, 21 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=19occurred 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, 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 [2021-11-23 12:24:24,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/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_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G --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 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:24:27,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:24:27,376 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:24:27,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:24:27,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:24:27,441 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:24:27,443 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:24:27,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:24:27,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:24:27,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:24:27,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:24:27,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:24:27,467 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:24:27,470 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:24:27,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:24:27,478 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:24:27,480 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:24:27,481 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:24:27,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:24:27,494 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:24:27,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:24:27,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:24:27,501 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:24:27,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:24:27,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:24:27,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:24:27,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:24:27,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:24:27,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:24:27,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:24:27,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:24:27,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:24:27,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:24:27,518 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:24:27,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:24:27,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:24:27,528 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:24:27,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:24:27,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:24:27,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:24:27,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:24:27,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-23 12:24:27,577 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:24:27,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:24:27,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:24:27,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:24:27,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:24:27,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:24:27,581 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:24:27,581 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:24:27,582 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:24:27,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:24:27,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:24:27,583 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:24:27,583 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:24:27,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:24:27,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 12:24:27,584 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 12:24:27,584 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 12:24:27,585 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:24:27,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:24:27,585 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:24:27,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:24:27,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:24:27,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:24:27,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:24:27,587 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:24:27,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:24:27,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:24:27,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:24:27,588 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-23 12:24:27,588 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 12:24:27,588 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:24:27,588 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:24:27,589 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:24:27,589 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:24:27,589 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 12:24:27,590 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_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6126c292b79b2663ac597229a34ee56f0c149d9383459c587f75b8bcd2abff05 [2021-11-23 12:24:28,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:24:28,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:24:28,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:24:28,042 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:24:28,043 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:24:28,045 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-23 12:24:28,126 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/07f9eede6/68847e541de745ffb2a80626391fa402/FLAGec0f2f491 [2021-11-23 12:24:28,655 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:24:28,657 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c [2021-11-23 12:24:28,667 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/07f9eede6/68847e541de745ffb2a80626391fa402/FLAGec0f2f491 [2021-11-23 12:24:28,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/data/07f9eede6/68847e541de745ffb2a80626391fa402 [2021-11-23 12:24:29,001 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:24:29,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:24:29,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:24:29,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:24:29,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:24:29,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@748dbda4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29, skipping insertion in model container [2021-11-23 12:24:29,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:24:29,040 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:24:29,194 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_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-23 12:24:29,263 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:24:29,288 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:24:29,321 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_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/sv-benchmarks/c/float-benchs/sqrt_Newton_pseudoconstant.c[557,570] [2021-11-23 12:24:29,353 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:24:29,371 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:24:29,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29 WrapperNode [2021-11-23 12:24:29,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:24:29,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:24:29,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:24:29,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:24:29,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,420 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 74 [2021-11-23 12:24:29,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:24:29,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:24:29,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:24:29,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:24:29,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,440 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,441 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:24:29,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:24:29,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:24:29,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:24:29,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (1/1) ... [2021-11-23 12:24:29,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:24:29,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:24:29,495 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:24:29,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:24:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:24:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 12:24:29,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:24:29,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:24:29,606 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:24:29,608 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:24:39,230 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:24:39,236 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:24:39,237 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-23 12:24:39,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:39 BoogieIcfgContainer [2021-11-23 12:24:39,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:24:39,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:24:39,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:24:39,244 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:24:39,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:24:29" (1/3) ... [2021-11-23 12:24:39,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4b81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:24:39, skipping insertion in model container [2021-11-23 12:24:39,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:24:29" (2/3) ... [2021-11-23 12:24:39,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4b81e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:24:39, skipping insertion in model container [2021-11-23 12:24:39,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:39" (3/3) ... [2021-11-23 12:24:39,248 INFO L111 eAbstractionObserver]: Analyzing ICFG sqrt_Newton_pseudoconstant.c [2021-11-23 12:24:39,254 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:24:39,254 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:24:39,300 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:24:39,307 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 [2021-11-23 12:24:39,308 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 12:24:39,322 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-11-23 12:24:39,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 12:24:39,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:24:39,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:24:39,329 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:24:39,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:24:39,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1569195288, now seen corresponding path program 1 times [2021-11-23 12:24:39,347 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 12:24:39,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847904438] [2021-11-23 12:24:39,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:24:39,349 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 12:24:39,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 12:24:39,351 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 12:24:39,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 12:24:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:24:41,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 12:24:41,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:24:41,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:24:41,180 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:24:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:24:41,288 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 12:24:41,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847904438] [2021-11-23 12:24:41,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [847904438] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 12:24:41,290 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:24:41,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 12:24:41,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198134367] [2021-11-23 12:24:41,294 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 12:24:41,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:24:41,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 12:24:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:24:41,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:24:41,351 INFO L87 Difference]: Start difference. First operand has 19 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 18 states have internal predecessors, (25), 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) [2021-11-23 12:24:41,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:24:41,384 INFO L93 Difference]: Finished difference Result 36 states and 48 transitions. [2021-11-23 12:24:41,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:24:41,387 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 [2021-11-23 12:24:41,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:24:41,401 INFO L225 Difference]: With dead ends: 36 [2021-11-23 12:24:41,402 INFO L226 Difference]: Without dead ends: 15 [2021-11-23 12:24:41,407 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:24:41,415 INFO L933 BasicCegarLoop]: 21 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, 21 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 [2021-11-23 12:24:41,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:24:41,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-23 12:24:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2021-11-23 12:24:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:24:41,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2021-11-23 12:24:41,463 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2021-11-23 12:24:41,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:24:41,464 INFO L470 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2021-11-23 12:24:41,465 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) [2021-11-23 12:24:41,465 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2021-11-23 12:24:41,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 12:24:41,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:24:41,467 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:24:41,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-23 12:24:41,680 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 12:24:41,681 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:24:41,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:24:41,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2049407722, now seen corresponding path program 1 times [2021-11-23 12:24:41,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 12:24:41,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [309700702] [2021-11-23 12:24:41,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:24:41,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 12:24:41,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 12:24:41,685 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 12:24:41,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 12:24:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:24:43,369 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-23 12:24:43,370 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:24:44,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:24:44,119 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 12:24:54,780 WARN L838 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xn~0#1| |c_ULTIMATE.start_SqrtR_~xn~0#1|))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0))) (forall ((|v_ULTIMATE.start_SqrtR_~linf~0#1_5| (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xn~0#1| |c_ULTIMATE.start_SqrtR_~xn~0#1|)) |v_ULTIMATE.start_SqrtR_~linf~0#1_5|))) is different from false [2021-11-23 12:24:56,878 WARN L860 $PredicateComparison]: unable to prove that (or (let ((.cse0 (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xn~0#1| |c_ULTIMATE.start_SqrtR_~xn~0#1|))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0))) (forall ((|v_ULTIMATE.start_SqrtR_~linf~0#1_5| (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xn~0#1| |c_ULTIMATE.start_SqrtR_~xn~0#1|)) |v_ULTIMATE.start_SqrtR_~linf~0#1_5|))) is different from true [2021-11-23 12:25:22,648 WARN L227 SmtUtils]: Spent 11.66s on a formula simplification. DAG size of input: 15 DAG size of output: 11 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 12:25:30,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:25:30,075 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 12:25:30,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [309700702] [2021-11-23 12:25:30,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [309700702] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 12:25:30,075 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:25:30,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-23 12:25:30,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307602602] [2021-11-23 12:25:30,076 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 12:25:30,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-23 12:25:30,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-23 12:25:30,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-23 12:25:30,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=26, Unknown=3, NotChecked=10, Total=56 [2021-11-23 12:25:30,079 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:25:32,763 WARN L860 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_SqrtR_~xn~0#1| ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (= c_~_EPS~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (or (let ((.cse0 (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xn~0#1| |c_ULTIMATE.start_SqrtR_~xn~0#1|))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) .cse0) (fp.mul c_currentRoundingMode c_~_EPS~0 .cse0))) (forall ((|v_ULTIMATE.start_SqrtR_~linf~0#1_5| (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) c_~_EPS~0) (fp.add c_currentRoundingMode |c_ULTIMATE.start_SqrtR_~xn~0#1| |c_ULTIMATE.start_SqrtR_~xn~0#1|)) |v_ULTIMATE.start_SqrtR_~linf~0#1_5|))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from true [2021-11-23 12:25:36,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.35s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:38,598 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.58s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:41,396 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.60s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:44,647 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:47,200 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:49,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:51,901 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.65s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:53,911 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-23 12:25:53,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:25:53,912 INFO L93 Difference]: Finished difference Result 35 states and 41 transitions. [2021-11-23 12:25:54,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-23 12:25:54,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-23 12:25:54,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:25:54,111 INFO L225 Difference]: With dead ends: 35 [2021-11-23 12:25:54,111 INFO L226 Difference]: Without dead ends: 22 [2021-11-23 12:25:54,111 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.3s TimeCoverageRelationStatistics Valid=19, Invalid=27, Unknown=4, NotChecked=22, Total=72 [2021-11-23 12:25:54,113 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 2 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 20 IncrementalHoareTripleChecker+Unchecked, 21.7s IncrementalHoareTripleChecker+Time [2021-11-23 12:25:54,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2 Valid, 35 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 8 Unknown, 20 Unchecked, 21.7s Time] [2021-11-23 12:25:54,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-23 12:25:54,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2021-11-23 12:25:54,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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) [2021-11-23 12:25:54,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2021-11-23 12:25:54,121 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 12 [2021-11-23 12:25:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:25:54,121 INFO L470 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2021-11-23 12:25:54,121 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.5) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 12:25:54,121 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2021-11-23 12:25:54,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 12:25:54,124 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:25:54,124 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:25:54,153 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-23 12:25:54,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 [2021-11-23 12:25:54,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:25:54,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:25:54,330 INFO L85 PathProgramCache]: Analyzing trace with hash -274400360, now seen corresponding path program 1 times [2021-11-23 12:25:54,330 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-23 12:25:54,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1829623555] [2021-11-23 12:25:54,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:25:54,330 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 12:25:54,330 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat [2021-11-23 12:25:54,331 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 12:25:54,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-23 12:25:57,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:25:57,594 WARN L261 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-23 12:25:57,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:26:15,368 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= |c_ULTIMATE.start_SqrtR_~xn~0#1| (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|)) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0))))) (= c_~_EPS~0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-23 12:26:52,240 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 16 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:27:02,217 WARN L227 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 7 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:27:07,386 WARN L227 SmtUtils]: Spent 5.17s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:27:17,439 WARN L227 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:27:36,011 WARN L227 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:29:02,660 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse0 (fp.div c_currentRoundingMode .cse1 |ULTIMATE.start_SqrtR_~Input#1|))) (and (= .cse0 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse1)) (let ((.cse2 (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse0 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (fp.gt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4) (fp.mul c_currentRoundingMode .cse3 .cse4))))) (or (and (not .cse2) (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53))) (not (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) |ULTIMATE.start_SqrtR_~Input#1|) |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)) |ULTIMATE.start_SqrtR_~linf~0#1|))) (= (_ bv0 32) |c_ULTIMATE.start_SqrtR_~cond~0#1|)) (and (or (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53))) (fp.lt (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (fp.add c_currentRoundingMode (fp.div c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) |ULTIMATE.start_SqrtR_~Input#1|) |c_ULTIMATE.start_SqrtR_~xnp1~0#1|)) |ULTIMATE.start_SqrtR_~linf~0#1|)) .cse2) (= (_ bv1 32) |c_ULTIMATE.start_SqrtR_~cond~0#1|)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-23 12:29:32,726 WARN L227 SmtUtils]: Spent 5.27s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:29:35,004 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse3 (fp.div c_currentRoundingMode .cse4 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse2 (fp.add c_currentRoundingMode .cse3 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|))) (let ((.cse0 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse1) .cse2))) (and (not (fp.lt .cse0 |ULTIMATE.start_SqrtR_~linf~0#1|)) (not (fp.gt .cse0 (fp.mul c_currentRoundingMode .cse1 .cse2))) (= .cse3 |c_ULTIMATE.start_SqrtR_~xnp1~0#1|) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse4)))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-23 12:29:40,874 WARN L227 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:29:46,279 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:29:52,135 WARN L227 SmtUtils]: Spent 5.86s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:29:57,949 WARN L227 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:03,921 WARN L227 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:09,656 WARN L227 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:12,095 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (let ((.cse1 (fp.div c_currentRoundingMode .cse0 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 1000000.0))) (.cse4 (fp.add c_currentRoundingMode .cse1 .cse1))) (let ((.cse2 (fp.mul c_currentRoundingMode (fp.mul c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 2.0) .cse3) .cse4))) (and (= (fp.div c_currentRoundingMode .cse0 .cse1) |c_ULTIMATE.start_SqrtR_#res#1|) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add c_currentRoundingMode .cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 100000000.0)))) (not (fp.lt .cse2 |ULTIMATE.start_SqrtR_~linf~0#1|)) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse0)) (not (fp.gt .cse2 (fp.mul c_currentRoundingMode .cse3 .cse4))))))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-23 12:30:17,884 WARN L227 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:26,071 WARN L227 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:34,239 WARN L227 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:39,936 WARN L227 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:45,233 WARN L227 SmtUtils]: Spent 5.30s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:50,944 WARN L227 SmtUtils]: Spent 5.71s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:30:56,662 WARN L227 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:02,401 WARN L227 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:10,517 WARN L227 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:16,206 WARN L227 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:21,970 WARN L227 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:27,296 WARN L227 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:33,043 WARN L227 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:38,814 WARN L227 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:44,579 WARN L227 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:50,449 WARN L227 SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:31:56,226 WARN L227 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:02,096 WARN L227 SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:08,143 WARN L227 SmtUtils]: Spent 6.04s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:14,037 WARN L227 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:22,525 WARN L227 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:28,518 WARN L227 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:34,547 WARN L227 SmtUtils]: Spent 6.03s on a formula simplification that was a NOOP. DAG size: 9 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:40,545 WARN L227 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:46,382 WARN L227 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:52,205 WARN L227 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 9 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:32:58,116 WARN L227 SmtUtils]: Spent 5.91s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:03,970 WARN L227 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:09,819 WARN L227 SmtUtils]: Spent 5.85s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:15,650 WARN L227 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:21,489 WARN L227 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 9 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:27,297 WARN L227 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 9 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:33,190 WARN L227 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 3 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:38,951 WARN L227 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:44,823 WARN L227 SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:50,799 WARN L227 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:56,583 WARN L227 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:33:59,015 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse3 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse2 (fp.add roundNearestTiesToEven .cse7 .cse7))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse1) .cse2))) (and (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse1 .cse2))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (let ((.cse6 (fp.div roundNearestTiesToEven .cse3 .cse7))) (let ((.cse4 (fp.leq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (.cse5 (fp.geq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0))))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse4 .cse5) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse4) (not .cse5)))))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3)) (not (fp.lt .cse0 |ULTIMATE.start_SqrtR_~linf~0#1|)))))))) is different from false [2021-11-23 12:34:01,317 WARN L860 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse3 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse2 (fp.add roundNearestTiesToEven .cse7 .cse7))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse1) .cse2))) (and (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse1 .cse2))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (let ((.cse6 (fp.div roundNearestTiesToEven .cse3 .cse7))) (let ((.cse4 (fp.leq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (.cse5 (fp.geq .cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0))))) (or (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse4 .cse5) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse4) (not .cse5)))))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3)) (not (fp.lt .cse0 |ULTIMATE.start_SqrtR_~linf~0#1|)))))))) is different from true [2021-11-23 12:34:09,646 WARN L227 SmtUtils]: Spent 5.81s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:34:17,944 WARN L227 SmtUtils]: Spent 5.80s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:34:23,843 WARN L227 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:34:29,248 WARN L227 SmtUtils]: Spent 5.40s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:34:35,150 WARN L227 SmtUtils]: Spent 5.90s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:34:41,076 WARN L227 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:34:47,013 WARN L227 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:34:55,291 WARN L227 SmtUtils]: Spent 5.84s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:01,125 WARN L227 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:06,946 WARN L227 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:12,290 WARN L227 SmtUtils]: Spent 5.34s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:18,070 WARN L227 SmtUtils]: Spent 5.78s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:23,841 WARN L227 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:29,708 WARN L227 SmtUtils]: Spent 5.87s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:35,453 WARN L227 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 8 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:41,277 WARN L227 SmtUtils]: Spent 5.82s on a formula simplification that was a NOOP. DAG size: 6 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:47,070 WARN L227 SmtUtils]: Spent 5.79s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:52,903 WARN L227 SmtUtils]: Spent 5.83s on a formula simplification that was a NOOP. DAG size: 10 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:35:58,672 WARN L227 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 15 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 12:36:01,128 WARN L838 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_SqrtR_~linf~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_SqrtR_~Input#1| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse5 (fp.div roundNearestTiesToEven .cse3 |ULTIMATE.start_SqrtR_~Input#1|))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse2 (fp.add roundNearestTiesToEven .cse5 .cse5))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse1) .cse2))) (and (not (fp.gt .cse0 (fp.mul roundNearestTiesToEven .cse1 .cse2))) (fp.leq |ULTIMATE.start_SqrtR_~Input#1| (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 100000000.0)))) (not (fp.leq |ULTIMATE.start_SqrtR_~Input#1| .cse3)) (let ((.cse4 (fp.div roundNearestTiesToEven .cse3 .cse5))) (or (not (fp.leq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.geq .cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 9.0 10.0)))))) (not (fp.lt .cse0 |ULTIMATE.start_SqrtR_~linf~0#1|)))))))) is different from false [2021-11-23 12:36:02,561 WARN L228 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-23 12:36:02,562 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-23 12:36:02,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1829623555] [2021-11-23 12:36:02,562 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-23 12:36:02,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [119554913] [2021-11-23 12:36:02,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:02,563 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-23 12:36:02,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/cvc4 [2021-11-23 12:36:02,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2021-11-23 12:36:02,564 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-23 12:36:02,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2021-11-23 12:36:07,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:36:07,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-23 12:36:07,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:36:07,581 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-23 12:36:07,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444263878] [2021-11-23 12:36:07,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:36:07,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 12:36:07,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:36:07,597 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 12:36:07,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-23 12:38:27,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:38:28,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-23 12:38:28,090 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 12:38:28,091 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Connection to SMT solver broken [2021-11-23 12:38:28,091 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:38:28,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-23 12:38:28,091 ERROR L172 FreeRefinementEngine]: Strategy WOLF failed to provide any proof altough trace is infeasible [2021-11-23 12:38:28,091 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-23 12:38:28,099 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 12:38:28,301 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2021-11-23 12:38:28,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-23 12:38:28,380 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3 (4)] Ended with exit code 0 [2021-11-23 12:38:28,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2021-11-23 12:38:28,737 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/mathsat -unsat_core_generation=3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d1b911ab-8c00-44ab-bd08-8ecc6a6cd6e6/bin/uautomizer-wIGwrQj20G/cvc4 --incremental --print-success --lang smt [2021-11-23 12:38:28,740 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 12:38:28,742 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 12:38:28,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:38:28 BoogieIcfgContainer [2021-11-23 12:38:28,757 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 12:38:28,758 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:38:28,758 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:38:28,758 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:38:28,759 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:24:39" (3/4) ... [2021-11-23 12:38:28,762 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 12:38:28,762 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:38:28,763 INFO L158 Benchmark]: Toolchain (without parser) took 839758.61ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.5MB in the beginning and 28.3MB in the end (delta: 3.2MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2021-11-23 12:38:28,763 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 54.5MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:38:28,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 366.02ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.3MB in the beginning and 49.0MB in the end (delta: -17.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2021-11-23 12:38:28,764 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.81ms. Allocated memory is still 67.1MB. Free memory was 49.0MB in the beginning and 47.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:38:28,765 INFO L158 Benchmark]: Boogie Preprocessor took 38.12ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 46.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:38:28,765 INFO L158 Benchmark]: RCFGBuilder took 9777.41ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 48.8MB in the end (delta: -2.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2021-11-23 12:38:28,766 INFO L158 Benchmark]: TraceAbstraction took 829516.62ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 28.7MB in the end (delta: 19.6MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2021-11-23 12:38:28,766 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 67.1MB. Free memory is still 28.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:38:28,768 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 54.5MB. Free memory is still 35.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 366.02ms. Allocated memory was 54.5MB in the beginning and 67.1MB in the end (delta: 12.6MB). Free memory was 31.3MB in the beginning and 49.0MB in the end (delta: -17.7MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.81ms. Allocated memory is still 67.1MB. Free memory was 49.0MB in the beginning and 47.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.12ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 46.1MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 9777.41ms. Allocated memory is still 67.1MB. Free memory was 45.9MB in the beginning and 48.8MB in the end (delta: -2.9MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * TraceAbstraction took 829516.62ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 28.7MB in the end (delta: 19.6MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 67.1MB. Free memory is still 28.3MB. 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: 13]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L15] double _EPS = 1e-6; [L42] double d, dd, r; [L43] double epsilon = 1e-8; [L45] d = 1. [L45] COND TRUE d <= 20. [L47] dd = __VERIFIER_nondet_double() [L48] CALL assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L11] COND FALSE !(!cond) [L48] RET assume_abort_if_not(dd >= d-epsilon && dd <= d+epsilon) [L50] CALL, EXPR SqrtR(dd) [L19] double xn, xnp1, residu, lsup, linf; [L20] int i, cond; [L21] COND FALSE !(Input <= 1.0) [L21] xn = 1.0/Input [L22] xnp1 = xn [L23] residu = 2.0*_EPS*(xn+xnp1) [L24] lsup = _EPS * (xn+xnp1) [L25] linf = -lsup [L26] cond = ((residu > lsup) || (residu < linf)) [L27] i = 0 [L28] COND FALSE !(\read(cond)) [L37] return 1.0 / xnp1; [L50] RET, EXPR SqrtR(dd) [L50] r = SqrtR(dd) [L52] CALL __VERIFIER_assert(r >= 0.9 && r <= 5.) [L13] COND TRUE !(cond) [L13] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 829.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 8 mSolverCounterUnknown, 2 SdHoareTripleChecker+Valid, 21.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 20.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 20 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 20 IncrementalHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 32 mSDtfsCounter, 20 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 27.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=2, InterpolantAutomatonStates: 7, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 6.2s SatisfiabilityAnalysisTime, 652.2s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 1 QuantifiedInterpolants, 272 SizeOfPredicates, 7 NumberOfNonLiveVariables, 120 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN