./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/cos_polynomial.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aef121e0 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cos_polynomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:42:05,162 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:42:05,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:42:05,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:42:05,211 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:42:05,216 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:42:05,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:42:05,222 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:42:05,225 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:42:05,235 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:42:05,236 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:42:05,237 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:42:05,238 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:42:05,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:42:05,241 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:42:05,242 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:42:05,244 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:42:05,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:42:05,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:42:05,250 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:42:05,252 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:42:05,254 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:42:05,256 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:42:05,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:42:05,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:42:05,262 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:42:05,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:42:05,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:42:05,264 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:42:05,265 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:42:05,266 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:42:05,267 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:42:05,268 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:42:05,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:42:05,270 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:42:05,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:42:05,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:42:05,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:42:05,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:42:05,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:42:05,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:42:05,276 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-23 02:42:05,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:42:05,308 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:42:05,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:42:05,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:42:05,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:42:05,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:42:05,315 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:42:05,315 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:42:05,315 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:42:05,316 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-23 02:42:05,317 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:42:05,317 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:42:05,317 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-23 02:42:05,318 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-23 02:42:05,318 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:42:05,318 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-23 02:42:05,319 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-23 02:42:05,319 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-23 02:42:05,320 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:42:05,320 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:42:05,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 02:42:05,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:42:05,321 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:42:05,321 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:42:05,321 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:42:05,322 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:42:05,322 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:42:05,322 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:42:05,322 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:42:05,323 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:42:05,323 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:42:05,323 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:42:05,324 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:05,324 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:42:05,324 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:42:05,324 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:42:05,325 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-23 02:42:05,325 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 02:42:05,325 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:42:05,326 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:42:05,326 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:42:05,326 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2021-11-23 02:42:05,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:42:05,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:42:05,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:42:05,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:42:05,675 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:42:05,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-11-23 02:42:05,776 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/cae891013/8635e111264a441c93f6a06b356cb40b/FLAG042ff1a4f [2021-11-23 02:42:06,362 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:42:06,363 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-11-23 02:42:06,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/cae891013/8635e111264a441c93f6a06b356cb40b/FLAG042ff1a4f [2021-11-23 02:42:06,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/cae891013/8635e111264a441c93f6a06b356cb40b [2021-11-23 02:42:06,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:42:06,714 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:42:06,715 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:06,716 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:42:06,720 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:42:06,721 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:06" (1/1) ... [2021-11-23 02:42:06,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c27a7f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:06, skipping insertion in model container [2021-11-23 02:42:06,724 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:06" (1/1) ... [2021-11-23 02:42:06,732 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:42:06,751 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:42:06,943 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_2b0ec199-d886-4d82-97b2-550b07f385c1/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2021-11-23 02:42:06,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:06,975 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:42:06,988 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_2b0ec199-d886-4d82-97b2-550b07f385c1/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2021-11-23 02:42:07,009 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:07,023 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:42:07,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07 WrapperNode [2021-11-23 02:42:07,024 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:07,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:07,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:42:07,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:42:07,035 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,064 INFO L137 Inliner]: procedures = 15, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2021-11-23 02:42:07,064 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:07,065 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:42:07,066 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:42:07,066 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:42:07,075 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,075 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,077 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,077 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:42:07,103 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:42:07,103 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:42:07,103 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:42:07,107 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (1/1) ... [2021-11-23 02:42:07,115 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:07,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:42:07,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:42:07,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:42:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:42:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 02:42:07,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:42:07,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:42:07,277 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:42:07,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:42:07,460 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:42:07,589 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:42:07,589 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:42:07,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:07 BoogieIcfgContainer [2021-11-23 02:42:07,592 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:42:07,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:42:07,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:42:07,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:42:07,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:42:06" (1/3) ... [2021-11-23 02:42:07,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ece1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:07, skipping insertion in model container [2021-11-23 02:42:07,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:07" (2/3) ... [2021-11-23 02:42:07,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78ece1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:07, skipping insertion in model container [2021-11-23 02:42:07,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:07" (3/3) ... [2021-11-23 02:42:07,613 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2021-11-23 02:42:07,619 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:42:07,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:42:07,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:42:07,722 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=FINITE_AUTOMATA, 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 02:42:07,722 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:42:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand has 6 states, 4 states have (on average 1.5) internal successors, (6), 5 states have internal predecessors, (6), 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 02:42:07,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2021-11-23 02:42:07,743 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:07,744 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1] [2021-11-23 02:42:07,744 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:42:07,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash 87548, now seen corresponding path program 1 times [2021-11-23 02:42:07,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-23 02:42:07,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [312565797] [2021-11-23 02:42:07,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:07,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 02:42:07,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:42:07,923 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 02:42:07,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 02:42:07,987 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-23 02:42:07,990 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 02:42:07,991 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 02:42:07,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 02:42:07,999 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2021-11-23 02:42:08,002 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 02:42:08,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:42:08 BoogieIcfgContainer [2021-11-23 02:42:08,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 02:42:08,040 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 02:42:08,040 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 02:42:08,040 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 02:42:08,041 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:07" (3/4) ... [2021-11-23 02:42:08,045 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-23 02:42:08,045 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 02:42:08,048 INFO L158 Benchmark]: Toolchain (without parser) took 1332.65ms. Allocated memory was 98.6MB in the beginning and 140.5MB in the end (delta: 41.9MB). Free memory was 65.2MB in the beginning and 86.1MB in the end (delta: -20.9MB). Peak memory consumption was 17.9MB. Max. memory is 16.1GB. [2021-11-23 02:42:08,050 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:42:08,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.53ms. Allocated memory was 98.6MB in the beginning and 140.5MB in the end (delta: 41.9MB). Free memory was 65.0MB in the beginning and 114.7MB in the end (delta: -49.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 02:42:08,052 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.73ms. Allocated memory is still 140.5MB. Free memory was 114.7MB in the beginning and 113.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:42:08,059 INFO L158 Benchmark]: Boogie Preprocessor took 36.49ms. Allocated memory is still 140.5MB. Free memory was 113.3MB in the beginning and 112.6MB in the end (delta: 728.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 02:42:08,060 INFO L158 Benchmark]: RCFGBuilder took 489.54ms. Allocated memory is still 140.5MB. Free memory was 112.6MB in the beginning and 100.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:42:08,062 INFO L158 Benchmark]: TraceAbstraction took 441.87ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 86.1MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 02:42:08,062 INFO L158 Benchmark]: Witness Printer took 5.87ms. Allocated memory is still 140.5MB. Free memory is still 86.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 02:42:08,072 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 98.6MB. Free memory was 51.9MB in the beginning and 51.8MB in the end (delta: 77.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.53ms. Allocated memory was 98.6MB in the beginning and 140.5MB in the end (delta: 41.9MB). Free memory was 65.0MB in the beginning and 114.7MB in the end (delta: -49.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.73ms. Allocated memory is still 140.5MB. Free memory was 114.7MB in the beginning and 113.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.49ms. Allocated memory is still 140.5MB. Free memory was 113.3MB in the beginning and 112.6MB in the end (delta: 728.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 489.54ms. Allocated memory is still 140.5MB. Free memory was 112.6MB in the beginning and 100.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 441.87ms. Allocated memory is still 140.5MB. Free memory was 100.0MB in the beginning and 86.1MB in the end (delta: 14.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.87ms. Allocated memory is still 140.5MB. Free memory is still 86.1MB. 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: 14]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someUnaryDOUBLEoperation at line 17, overapproximation of someBinaryArithmeticDOUBLEoperation at line 26, overapproximation of someBinaryDOUBLEComparisonOperation at line 52. Possible FailurePath: [L16] double C1 = 4.16666666666666019037e-02; [L17] double C2 = -1.38888888888741095749e-03; [L18] double C3 = 2.48015872894767294178e-05; [L19] double C4 = -2.75573143513906633035e-07; [L20] double C5 = 2.08757232129817482790e-09; [L21] double C6 = -1.13596475577881948265e-11; [L49] double a, r; [L51] a = __VERIFIER_nondet_double() [L52] CALL assume_abort_if_not(a >= -0.5 && a <= 0.75) [L12] COND FALSE !(!cond) [L52] RET assume_abort_if_not(a >= -0.5 && a <= 0.75) [L54] CALL, EXPR mcos(a) [L25] double a, hz, z, r, qx, zr; [L26] z = x*x [L27] COND TRUE x < 0. [L27] x = -x [L28] hz = 0.5 * z [L29] r = z*(C1+z*(C2+z*(C3+z*(C4+z*(C5+z*C6))))) [L30] zr = z*r [L31] COND TRUE x < 0.3 [L32] return 1.-(hz-zr); [L54] RET, EXPR mcos(a) [L54] r = mcos(a) [L56] CALL __VERIFIER_assert(r >= 0. && r <= 1.1) [L14] COND TRUE !(cond) VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] [L14] reach_error() VAL [\old(cond)=0, C1=416666666666666019037/10000000000000000000000, C3=124007936447383647089/5000000000000000000000000, C5=20875723212981748279/10000000000000000000000000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 02:42:08,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/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_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/cos_polynomial.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-aef121e [2021-11-23 02:42:10,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 02:42:10,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 02:42:10,765 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 02:42:10,765 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 02:42:10,770 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 02:42:10,772 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 02:42:10,777 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 02:42:10,780 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 02:42:10,791 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 02:42:10,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 02:42:10,795 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 02:42:10,795 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 02:42:10,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 02:42:10,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 02:42:10,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 02:42:10,808 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 02:42:10,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 02:42:10,811 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 02:42:10,819 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 02:42:10,821 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 02:42:10,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 02:42:10,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 02:42:10,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 02:42:10,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 02:42:10,837 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 02:42:10,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 02:42:10,839 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 02:42:10,840 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 02:42:10,841 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 02:42:10,841 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 02:42:10,842 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 02:42:10,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 02:42:10,846 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 02:42:10,847 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 02:42:10,847 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 02:42:10,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 02:42:10,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 02:42:10,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 02:42:10,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 02:42:10,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 02:42:10,853 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-23 02:42:10,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 02:42:10,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 02:42:10,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 02:42:10,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 02:42:10,900 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 02:42:10,901 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-23 02:42:10,901 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-23 02:42:10,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-23 02:42:10,901 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-23 02:42:10,901 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-23 02:42:10,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-23 02:42:10,903 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-23 02:42:10,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 02:42:10,905 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 02:42:10,905 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 02:42:10,905 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 02:42:10,905 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 02:42:10,905 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 02:42:10,905 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 02:42:10,906 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 02:42:10,906 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 02:42:10,906 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 02:42:10,906 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 02:42:10,906 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 02:42:10,907 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 02:42:10,907 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 02:42:10,907 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 02:42:10,907 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 02:42:10,908 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 02:42:10,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:10,908 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 02:42:10,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 02:42:10,909 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 02:42:10,909 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 02:42:10,909 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 02:42:10,909 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 02:42:10,909 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 02:42:10,910 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 02:42:10,910 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_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c41c899e123885a0a5b4b47d325ecb3bae7fd8ace0e033e73eafae066c754dcb [2021-11-23 02:42:11,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 02:42:11,389 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 02:42:11,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 02:42:11,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 02:42:11,393 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 02:42:11,395 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/../../sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-11-23 02:42:11,461 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/ff043b92a/d8269343f2ea4213867dcb9f89ab90f3/FLAGa973f33b5 [2021-11-23 02:42:12,035 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 02:42:12,036 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/sv-benchmarks/c/float-benchs/cos_polynomial.c [2021-11-23 02:42:12,045 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/ff043b92a/d8269343f2ea4213867dcb9f89ab90f3/FLAGa973f33b5 [2021-11-23 02:42:12,382 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/data/ff043b92a/d8269343f2ea4213867dcb9f89ab90f3 [2021-11-23 02:42:12,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 02:42:12,387 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 02:42:12,389 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:12,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 02:42:12,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 02:42:12,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,398 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bb64c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12, skipping insertion in model container [2021-11-23 02:42:12,399 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,409 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 02:42:12,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 02:42:12,626 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_2b0ec199-d886-4d82-97b2-550b07f385c1/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2021-11-23 02:42:12,649 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:12,664 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 02:42:12,678 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_2b0ec199-d886-4d82-97b2-550b07f385c1/sv-benchmarks/c/float-benchs/cos_polynomial.c[619,632] [2021-11-23 02:42:12,688 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 02:42:12,753 INFO L208 MainTranslator]: Completed translation [2021-11-23 02:42:12,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12 WrapperNode [2021-11-23 02:42:12,753 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 02:42:12,754 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:12,755 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 02:42:12,755 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 02:42:12,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,773 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,795 INFO L137 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2021-11-23 02:42:12,795 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 02:42:12,796 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 02:42:12,796 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 02:42:12,796 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 02:42:12,805 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,824 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 02:42:12,825 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 02:42:12,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 02:42:12,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 02:42:12,827 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (1/1) ... [2021-11-23 02:42:12,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 02:42:12,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/z3 [2021-11-23 02:42:12,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 02:42:12,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 02:42:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 02:42:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 02:42:12,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 02:42:12,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 02:42:12,973 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 02:42:12,975 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 02:42:19,399 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 02:42:19,406 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 02:42:19,406 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-11-23 02:42:19,408 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:19 BoogieIcfgContainer [2021-11-23 02:42:19,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 02:42:19,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 02:42:19,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 02:42:19,414 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 02:42:19,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:42:12" (1/3) ... [2021-11-23 02:42:19,415 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b95cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:19, skipping insertion in model container [2021-11-23 02:42:19,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:12" (2/3) ... [2021-11-23 02:42:19,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52b95cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:42:19, skipping insertion in model container [2021-11-23 02:42:19,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:19" (3/3) ... [2021-11-23 02:42:19,418 INFO L111 eAbstractionObserver]: Analyzing ICFG cos_polynomial.c [2021-11-23 02:42:19,424 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 02:42:19,424 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 02:42:19,487 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 02:42:19,493 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=FINITE_AUTOMATA, 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 02:42:19,494 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 02:42:19,505 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:42:19,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:42:19,511 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:19,511 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:19,512 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:42:19,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:19,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1236255304, now seen corresponding path program 1 times [2021-11-23 02:42:19,530 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:42:19,530 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [72883730] [2021-11-23 02:42:19,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:19,532 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:42:19,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:42:19,551 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:42:19,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-23 02:42:21,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:42:22,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-23 02:42:22,058 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:42:22,189 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 02:42:22,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-23 02:42:22,297 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 02:42:22,298 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-23 02:42:22,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [72883730] [2021-11-23 02:42:22,299 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [72883730] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-23 02:42:22,299 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-23 02:42:22,300 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-23 02:42:22,302 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346381569] [2021-11-23 02:42:22,303 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-23 02:42:22,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 02:42:22,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-23 02:42:22,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 02:42:22,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:42:22,355 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.4) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:42:22,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 02:42:22,374 INFO L93 Difference]: Finished difference Result 31 states and 38 transitions. [2021-11-23 02:42:22,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 02:42:22,376 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-23 02:42:22,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 02:42:22,385 INFO L225 Difference]: With dead ends: 31 [2021-11-23 02:42:22,385 INFO L226 Difference]: Without dead ends: 13 [2021-11-23 02:42:22,389 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 02:42:22,393 INFO L933 BasicCegarLoop]: 19 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, 19 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 02:42:22,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 02:42:22,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2021-11-23 02:42:22,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2021-11-23 02:42:22,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.25) internal successors, (15), 12 states have internal predecessors, (15), 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 02:42:22,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2021-11-23 02:42:22,422 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 10 [2021-11-23 02:42:22,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 02:42:22,423 INFO L470 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2021-11-23 02:42:22,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 02:42:22,423 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2021-11-23 02:42:22,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-23 02:42:22,424 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 02:42:22,424 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 02:42:22,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-23 02:42:22,627 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 [2021-11-23 02:42:22,627 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 02:42:22,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 02:42:22,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2045601930, now seen corresponding path program 1 times [2021-11-23 02:42:22,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-23 02:42:22,629 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [687312412] [2021-11-23 02:42:22,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 02:42:22,629 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-23 02:42:22,630 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat [2021-11-23 02:42:22,631 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-23 02:42:22,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2b0ec199-d886-4d82-97b2-550b07f385c1/bin/utaipan-EQgc7hIp5V/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-23 02:53:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 02:53:09,978 WARN L261 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 22 conjunts are in the unsatisfiable core [2021-11-23 02:53:09,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-23 02:53:36,241 WARN L227 SmtUtils]: Spent 7.11s on a formula simplification that was a NOOP. DAG size: 42 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-23 02:54:17,549 WARN L838 $PredicateComparison]: unable to prove that (and (= c_currentRoundingMode roundNearestTiesToEven) (exists ((|v_ULTIMATE.start_mcos_~x#1_12| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0))) (.cse1 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_mcos_~x#1_12| |v_ULTIMATE.start_mcos_~x#1_12|))) (and (fp.lt |v_ULTIMATE.start_mcos_~x#1_12| (_ +zero 11 53)) (fp.geq |v_ULTIMATE.start_mcos_~x#1_12| (fp.neg .cse0)) (= |c_ULTIMATE.start_mcos_~hz~0#1| (fp.mul c_currentRoundingMode .cse0 .cse1)) (= |c_ULTIMATE.start_mcos_~zr~0#1| (fp.mul c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) is different from false [2021-11-23 02:54:22,627 WARN L227 SmtUtils]: Spent 5.04s 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 02:54:34,765 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_mcos_~x#1_12| (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 1.0 2.0)))) (and (fp.lt |v_ULTIMATE.start_mcos_~x#1_12| (_ +zero 11 53)) (= (fp.sub c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode 1.0) (let ((.cse1 (fp.mul c_currentRoundingMode |v_ULTIMATE.start_mcos_~x#1_12| |v_ULTIMATE.start_mcos_~x#1_12|))) (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 .cse1) (fp.mul c_currentRoundingMode .cse1 (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul c_currentRoundingMode .cse1 (fp.add c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul c_currentRoundingMode .cse1 (fp.neg ((_ to_fp 11 53) c_currentRoundingMode (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))) |c_ULTIMATE.start_mcos_#res#1|) (fp.geq |v_ULTIMATE.start_mcos_~x#1_12| (fp.neg .cse0))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2021-11-23 02:54:54,317 WARN L227 SmtUtils]: Spent 5.02s 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 02:55:11,442 WARN L227 SmtUtils]: Spent 5.03s 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 02:55:16,451 WARN L227 SmtUtils]: Spent 5.01s 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 02:55:21,475 WARN L227 SmtUtils]: Spent 5.02s 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 02:55:26,515 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:55:31,568 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:55:39,116 WARN L227 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 39 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:55:44,152 WARN L227 SmtUtils]: Spent 5.04s 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 02:55:49,180 WARN L227 SmtUtils]: Spent 5.03s 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 02:55:54,245 WARN L227 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:55:59,334 WARN L227 SmtUtils]: Spent 5.09s on a formula simplification that was a NOOP. DAG size: 39 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:56:04,420 WARN L227 SmtUtils]: Spent 5.09s 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 02:56:09,459 WARN L227 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:56:19,498 WARN L227 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 41 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:56:24,572 WARN L227 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 40 (called from [L1066] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2021-11-23 02:56:29,626 WARN L227 SmtUtils]: Spent 5.05s 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 02:56:34,700 WARN L227 SmtUtils]: Spent 5.07s 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 02:56:37,128 WARN L838 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_mcos_~x#1_12| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)))) (and (let ((.cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse4 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_mcos_~x#1_12| |v_ULTIMATE.start_mcos_~x#1_12|))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 .cse4) (fp.mul roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) (let ((.cse1 (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))) (.cse0 (fp.geq .cse2 (_ +zero 11 53)))) (or (and .cse0 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse1) (not .cse0)))))) (fp.lt |v_ULTIMATE.start_mcos_~x#1_12| (_ +zero 11 53)) (fp.geq |v_ULTIMATE.start_mcos_~x#1_12| (fp.neg .cse3))))) is different from false [2021-11-23 02:56:39,342 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_ULTIMATE.start_mcos_~x#1_12| (_ FloatingPoint 11 53))) (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 2.0)))) (and (let ((.cse2 (fp.sub roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0) (let ((.cse4 (fp.mul roundNearestTiesToEven |v_ULTIMATE.start_mcos_~x#1_12| |v_ULTIMATE.start_mcos_~x#1_12|))) (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse3 .cse4) (fp.mul roundNearestTiesToEven .cse4 (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 416666666666666019037.0 10000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 138888888888741095749.0 100000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 124007936447383647089.0 5000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 55114628702781326607.0 200000000000000000000000000.0))) (fp.mul roundNearestTiesToEven .cse4 (fp.add roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 20875723212981748279.0 10000000000000000000000000000.0)) (fp.mul roundNearestTiesToEven .cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 22719295115576389653.0 2000000000000000000000000000000.0)))))))))))))))))))) (let ((.cse1 (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0)))) (.cse0 (fp.geq .cse2 (_ +zero 11 53)))) (or (and .cse0 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1) (and (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)) (or (not .cse1) (not .cse0)))))) (fp.lt |v_ULTIMATE.start_mcos_~x#1_12| (_ +zero 11 53)) (fp.geq |v_ULTIMATE.start_mcos_~x#1_12| (fp.neg .cse3))))) is different from true