./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P --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 1ab89f9fd181fc49393249ab394ae0be489884ea10cdc47029f2c0a33dd5486d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:26:47,029 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:26:47,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:26:47,094 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:26:47,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:26:47,096 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:26:47,098 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:26:47,101 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:26:47,103 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:26:47,105 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:26:47,106 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:26:47,108 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:26:47,108 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:26:47,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:26:47,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:26:47,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:26:47,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:26:47,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:26:47,118 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:26:47,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:26:47,124 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:26:47,126 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:26:47,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:26:47,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:26:47,134 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:26:47,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:26:47,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:26:47,136 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:26:47,137 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:26:47,138 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:26:47,142 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:26:47,143 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:26:47,144 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:26:47,146 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:26:47,151 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:26:47,152 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:26:47,153 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:26:47,153 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:26:47,153 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:26:47,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:26:47,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:26:47,156 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-21 01:26:47,215 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:26:47,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:26:47,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:26:47,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:26:47,221 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:26:47,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:26:47,221 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:26:47,222 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:26:47,222 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:26:47,222 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-21 01:26:47,224 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:26:47,224 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:26:47,224 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-21 01:26:47,224 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-21 01:26:47,225 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:26:47,225 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-21 01:26:47,225 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-21 01:26:47,226 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2021-11-21 01:26:47,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:26:47,227 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:26:47,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-21 01:26:47,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:26:47,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:26:47,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:26:47,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:26:47,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:26:47,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:26:47,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:26:47,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:26:47,233 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:26:47,233 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:26:47,234 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:26:47,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:26:47,234 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:26:47,234 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:26:47,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:26:47,235 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-21 01:26:47,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-21 01:26:47,236 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:26:47,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:26:47,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:26:47,236 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_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab89f9fd181fc49393249ab394ae0be489884ea10cdc47029f2c0a33dd5486d [2021-11-21 01:26:47,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:26:47,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:26:47,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:26:47,538 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:26:47,539 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:26:47,540 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-11-21 01:26:47,642 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/9274925c2/28078aec8bb84a569b6abdc00df3dd9f/FLAG439b3c85d [2021-11-21 01:26:48,197 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:26:48,198 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-11-21 01:26:48,206 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/9274925c2/28078aec8bb84a569b6abdc00df3dd9f/FLAG439b3c85d [2021-11-21 01:26:48,559 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/9274925c2/28078aec8bb84a569b6abdc00df3dd9f [2021-11-21 01:26:48,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:26:48,564 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:26:48,570 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:26:48,571 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:26:48,575 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:26:48,576 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:48,577 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@150a9208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48, skipping insertion in model container [2021-11-21 01:26:48,577 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:48,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:26:48,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:26:48,884 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_20ce2110-710f-4491-93c5-d98ec0125cd2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-11-21 01:26:48,888 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:26:48,898 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:26:48,960 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_20ce2110-710f-4491-93c5-d98ec0125cd2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-11-21 01:26:48,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:26:48,993 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:26:48,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48 WrapperNode [2021-11-21 01:26:48,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:26:48,995 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:26:48,996 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:26:48,996 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:26:49,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,055 INFO L137 Inliner]: procedures = 19, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 218 [2021-11-21 01:26:49,056 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:26:49,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:26:49,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:26:49,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:26:49,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,067 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,090 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,101 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:26:49,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:26:49,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:26:49,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:26:49,110 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (1/1) ... [2021-11-21 01:26:49,118 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:26:49,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:26:49,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:26:49,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:26:49,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:26:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-21 01:26:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:26:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-21 01:26:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-21 01:26:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-21 01:26:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-21 01:26:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-21 01:26:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:26:49,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:26:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-21 01:26:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-21 01:26:49,221 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-21 01:26:49,222 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-21 01:26:49,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:26:49,329 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:26:49,331 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:26:49,852 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:26:49,924 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:26:49,924 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 01:26:49,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:26:49 BoogieIcfgContainer [2021-11-21 01:26:49,927 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:26:49,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:26:49,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:26:49,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:26:49,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:26:48" (1/3) ... [2021-11-21 01:26:49,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221d2ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:26:49, skipping insertion in model container [2021-11-21 01:26:49,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:48" (2/3) ... [2021-11-21 01:26:49,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@221d2ac3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:26:49, skipping insertion in model container [2021-11-21 01:26:49,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:26:49" (3/3) ... [2021-11-21 01:26:49,944 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0663a.c [2021-11-21 01:26:49,949 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:26:49,949 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:26:50,001 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:26:50,010 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 [2021-11-21 01:26:50,010 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:26:50,033 INFO L276 IsEmpty]: Start isEmpty. Operand has 69 states, 61 states have (on average 1.7049180327868851) internal successors, (104), 62 states have internal predecessors, (104), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:26:50,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-21 01:26:50,038 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:50,039 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:50,040 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:50,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:50,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1923224870, now seen corresponding path program 1 times [2021-11-21 01:26:50,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:50,060 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943680825] [2021-11-21 01:26:50,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:50,061 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:50,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:26:50,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:26:50,331 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-21 01:26:50,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943680825] [2021-11-21 01:26:50,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943680825] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-21 01:26:50,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:26:50,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-21 01:26:50,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251705921] [2021-11-21 01:26:50,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-21 01:26:50,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:26:50,341 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-21 01:26:50,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:26:50,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:26:50,373 INFO L87 Difference]: Start difference. First operand has 69 states, 61 states have (on average 1.7049180327868851) internal successors, (104), 62 states have internal predecessors, (104), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) 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) [2021-11-21 01:26:50,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:26:50,431 INFO L93 Difference]: Finished difference Result 136 states and 225 transitions. [2021-11-21 01:26:50,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:26:50,435 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 [2021-11-21 01:26:50,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:26:50,444 INFO L225 Difference]: With dead ends: 136 [2021-11-21 01:26:50,444 INFO L226 Difference]: Without dead ends: 66 [2021-11-21 01:26:50,448 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 [2021-11-21 01:26:50,453 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-21 01:26:50,454 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:26:50,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-21 01:26:50,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-21 01:26:50,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 59 states have (on average 1.4406779661016949) internal successors, (85), 59 states have internal predecessors, (85), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:26:50,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 93 transitions. [2021-11-21 01:26:50,511 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 93 transitions. Word has length 10 [2021-11-21 01:26:50,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:26:50,512 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 93 transitions. [2021-11-21 01:26:50,512 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) [2021-11-21 01:26:50,512 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 93 transitions. [2021-11-21 01:26:50,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-21 01:26:50,515 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:26:50,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:26:50,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-21 01:26:50,517 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:26:50,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:26:50,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1412060079, now seen corresponding path program 1 times [2021-11-21 01:26:50,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-21 01:26:50,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051397766] [2021-11-21 01:26:50,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:26:50,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-21 01:26:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:26:50,661 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-21 01:26:50,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-21 01:26:50,810 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-21 01:26:50,816 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-21 01:26:50,819 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:26:50,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-21 01:26:50,827 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-21 01:26:50,830 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:26:50,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:26:50 BoogieIcfgContainer [2021-11-21 01:26:50,881 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:26:50,882 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:26:50,883 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:26:50,883 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:26:50,884 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:26:49" (3/4) ... [2021-11-21 01:26:50,888 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-21 01:26:50,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:26:50,892 INFO L158 Benchmark]: Toolchain (without parser) took 2325.75ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 56.9MB in the beginning and 90.0MB in the end (delta: -33.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:26:50,895 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory was 44.9MB in the beginning and 44.8MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:26:50,897 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.03ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 56.7MB in the beginning and 93.6MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-21 01:26:50,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.73ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 91.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:26:50,901 INFO L158 Benchmark]: Boogie Preprocessor took 50.41ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 89.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:26:50,903 INFO L158 Benchmark]: RCFGBuilder took 819.47ms. Allocated memory is still 121.6MB. Free memory was 89.4MB in the beginning and 65.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-21 01:26:50,907 INFO L158 Benchmark]: TraceAbstraction took 952.24ms. Allocated memory is still 121.6MB. Free memory was 64.4MB in the beginning and 90.0MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:26:50,907 INFO L158 Benchmark]: Witness Printer took 7.04ms. Allocated memory is still 121.6MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:26:50,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 90.2MB. Free memory was 44.9MB in the beginning and 44.8MB in the end (delta: 69.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.03ms. Allocated memory was 90.2MB in the beginning and 121.6MB in the end (delta: 31.5MB). Free memory was 56.7MB in the beginning and 93.6MB in the end (delta: -36.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 60.73ms. Allocated memory is still 121.6MB. Free memory was 93.6MB in the beginning and 91.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.41ms. Allocated memory is still 121.6MB. Free memory was 91.6MB in the beginning and 89.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 819.47ms. Allocated memory is still 121.6MB. Free memory was 89.4MB in the beginning and 65.0MB in the end (delta: 24.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 952.24ms. Allocated memory is still 121.6MB. Free memory was 64.4MB in the beginning and 90.0MB in the end (delta: -25.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.04ms. Allocated memory is still 121.6MB. Free memory is still 90.0MB. 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: 231]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 230, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 135, overapproximation of someUnaryFLOAToperation at line 218, overapproximation of someBinaryArithmeticFLOAToperation at line 137. Possible FailurePath: [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; [L117-L118] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L218] float x = -0.0f; [L219] float y = __VERIFIER_nondet_float(); [L226] COND TRUE y > 0.0f [L227] CALL, EXPR __ieee754_atan2f(y, x) [L121] float z; [L122] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L125] ieee_float_shape_type gf_u; [L126] gf_u.value = (x) [L127] EXPR gf_u.word [L127] (hx) = gf_u.word [L129] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L131] ieee_float_shape_type gf_u; [L132] gf_u.value = (y) [L133] EXPR gf_u.word [L133] (hy) = gf_u.word [L135] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, hy=0, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L136] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L137] return x + y; VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-1, hy=0, ix=2139095041, iy=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L227] RET, EXPR __ieee754_atan2f(y, x) [L227] float res = __ieee754_atan2f(y, x); [L230] COND TRUE res != pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] [L231] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=1000000000000000000000000000003, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, y=1000000000000000000000000000002, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 69 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, 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, 84 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 84 mSDtfsCounter, 13 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=69occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2021-11-21 01:26:50,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/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_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P --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 1ab89f9fd181fc49393249ab394ae0be489884ea10cdc47029f2c0a33dd5486d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-21 01:26:53,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-21 01:26:53,769 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-21 01:26:53,805 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-21 01:26:53,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-21 01:26:53,813 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-21 01:26:53,817 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-21 01:26:53,825 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-21 01:26:53,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-21 01:26:53,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-21 01:26:53,839 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-21 01:26:53,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-21 01:26:53,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-21 01:26:53,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-21 01:26:53,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-21 01:26:53,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-21 01:26:53,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-21 01:26:53,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-21 01:26:53,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-21 01:26:53,868 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-21 01:26:53,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-21 01:26:53,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-21 01:26:53,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-21 01:26:53,880 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-21 01:26:53,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-21 01:26:53,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-21 01:26:53,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-21 01:26:53,889 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-21 01:26:53,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-21 01:26:53,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-21 01:26:53,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-21 01:26:53,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-21 01:26:53,899 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-21 01:26:53,900 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-21 01:26:53,902 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-21 01:26:53,903 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-21 01:26:53,904 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-21 01:26:53,904 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-21 01:26:53,904 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-21 01:26:53,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-21 01:26:53,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-21 01:26:53,912 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-21 01:26:53,975 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-21 01:26:53,975 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-21 01:26:53,976 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-21 01:26:53,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-21 01:26:53,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-21 01:26:53,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-21 01:26:53,978 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-21 01:26:53,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-21 01:26:53,979 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-21 01:26:53,979 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-21 01:26:53,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-21 01:26:53,981 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-21 01:26:53,983 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-21 01:26:53,983 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-21 01:26:53,983 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-21 01:26:53,984 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-21 01:26:53,984 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-21 01:26:53,984 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-21 01:26:53,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-21 01:26:53,985 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-21 01:26:53,985 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-21 01:26:53,985 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-21 01:26:53,986 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-21 01:26:53,986 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-21 01:26:53,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-21 01:26:53,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-21 01:26:53,987 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-21 01:26:53,987 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-21 01:26:53,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:26:53,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-21 01:26:53,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-21 01:26:53,988 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-21 01:26:53,989 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-21 01:26:53,989 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-21 01:26:53,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-21 01:26:53,990 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-21 01:26:53,990 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-21 01:26:53,991 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_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1ab89f9fd181fc49393249ab394ae0be489884ea10cdc47029f2c0a33dd5486d [2021-11-21 01:26:54,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-21 01:26:54,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-21 01:26:54,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-21 01:26:54,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-21 01:26:54,492 INFO L275 PluginConnector]: CDTParser initialized [2021-11-21 01:26:54,494 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/../../sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-11-21 01:26:54,581 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/ddac71651/5cfb2fb52bb64b27a5c34e177d513596/FLAGa34a01463 [2021-11-21 01:26:55,271 INFO L306 CDTParser]: Found 1 translation units. [2021-11-21 01:26:55,274 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c [2021-11-21 01:26:55,288 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/ddac71651/5cfb2fb52bb64b27a5c34e177d513596/FLAGa34a01463 [2021-11-21 01:26:55,580 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/data/ddac71651/5cfb2fb52bb64b27a5c34e177d513596 [2021-11-21 01:26:55,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-21 01:26:55,585 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-21 01:26:55,587 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-21 01:26:55,587 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-21 01:26:55,592 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-21 01:26:55,593 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:26:55" (1/1) ... [2021-11-21 01:26:55,595 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15dd9b0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:55, skipping insertion in model container [2021-11-21 01:26:55,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 01:26:55" (1/1) ... [2021-11-21 01:26:55,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-21 01:26:55,631 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-21 01:26:55,938 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_20ce2110-710f-4491-93c5-d98ec0125cd2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-11-21 01:26:55,952 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:26:55,998 INFO L203 MainTranslator]: Completed pre-run [2021-11-21 01:26:56,112 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_20ce2110-710f-4491-93c5-d98ec0125cd2/sv-benchmarks/c/float-newlib/float_req_bl_0663a.c[5276,5289] [2021-11-21 01:26:56,113 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-21 01:26:56,159 INFO L208 MainTranslator]: Completed translation [2021-11-21 01:26:56,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56 WrapperNode [2021-11-21 01:26:56,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-21 01:26:56,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-21 01:26:56,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-21 01:26:56,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-21 01:26:56,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,202 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,256 INFO L137 Inliner]: procedures = 22, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 219 [2021-11-21 01:26:56,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-21 01:26:56,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-21 01:26:56,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-21 01:26:56,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-21 01:26:56,271 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,350 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-21 01:26:56,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-21 01:26:56,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-21 01:26:56,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-21 01:26:56,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (1/1) ... [2021-11-21 01:26:56,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-21 01:26:56,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/z3 [2021-11-21 01:26:56,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-21 01:26:56,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-21 01:26:56,483 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-21 01:26:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-21 01:26:56,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-21 01:26:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-21 01:26:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-21 01:26:56,486 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-21 01:26:56,487 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-21 01:26:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-21 01:26:56,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-21 01:26:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-21 01:26:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-21 01:26:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-21 01:26:56,488 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-21 01:26:56,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-21 01:26:56,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-21 01:26:56,656 INFO L236 CfgBuilder]: Building ICFG [2021-11-21 01:26:56,666 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-21 01:27:07,807 INFO L277 CfgBuilder]: Performing block encoding [2021-11-21 01:27:07,817 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-21 01:27:07,817 INFO L301 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-21 01:27:07,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:07 BoogieIcfgContainer [2021-11-21 01:27:07,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-21 01:27:07,822 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-21 01:27:07,822 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-21 01:27:07,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-21 01:27:07,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 01:26:55" (1/3) ... [2021-11-21 01:27:07,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccfd4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:07, skipping insertion in model container [2021-11-21 01:27:07,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 01:26:56" (2/3) ... [2021-11-21 01:27:07,828 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ccfd4f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 01:27:07, skipping insertion in model container [2021-11-21 01:27:07,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:07" (3/3) ... [2021-11-21 01:27:07,830 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0663a.c [2021-11-21 01:27:07,837 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-21 01:27:07,837 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-21 01:27:07,918 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-21 01:27:07,935 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 [2021-11-21 01:27:07,935 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-21 01:27:07,963 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:27:07,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-21 01:27:07,968 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:07,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:07,970 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:07,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:07,983 INFO L85 PathProgramCache]: Analyzing trace with hash 1457381495, now seen corresponding path program 1 times [2021-11-21 01:27:08,001 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:08,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460910915] [2021-11-21 01:27:08,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:08,003 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:08,011 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:08,014 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-21 01:27:09,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:09,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-21 01:27:09,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:09,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:09,211 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:27:09,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:09,287 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:27:09,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460910915] [2021-11-21 01:27:09,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460910915] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:09,289 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:09,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-21 01:27:09,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413165786] [2021-11-21 01:27:09,291 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:09,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-21 01:27:09,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:27:09,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-21 01:27:09,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:27:09,347 INFO L87 Difference]: Start difference. First operand has 92 states, 84 states have (on average 1.6547619047619047) internal successors, (139), 85 states have internal predecessors, (139), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:09,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:09,393 INFO L93 Difference]: Finished difference Result 181 states and 294 transitions. [2021-11-21 01:27:09,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-21 01:27:09,396 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-21 01:27:09,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:09,407 INFO L225 Difference]: With dead ends: 181 [2021-11-21 01:27:09,407 INFO L226 Difference]: Without dead ends: 88 [2021-11-21 01:27:09,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-21 01:27:09,416 INFO L933 BasicCegarLoop]: 132 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, 132 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 [2021-11-21 01:27:09,418 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-21 01:27:09,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-21 01:27:09,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-21 01:27:09,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4691358024691359) internal successors, (119), 81 states have internal predecessors, (119), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:27:09,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 127 transitions. [2021-11-21 01:27:09,477 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 127 transitions. Word has length 11 [2021-11-21 01:27:09,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:09,477 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 127 transitions. [2021-11-21 01:27:09,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-21 01:27:09,478 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 127 transitions. [2021-11-21 01:27:09,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-21 01:27:09,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:09,479 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:09,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-21 01:27:09,687 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:27:09,687 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:09,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:09,689 INFO L85 PathProgramCache]: Analyzing trace with hash 413175488, now seen corresponding path program 1 times [2021-11-21 01:27:09,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:09,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2091107443] [2021-11-21 01:27:09,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:09,691 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:09,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:09,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:09,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-21 01:27:10,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:10,840 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-21 01:27:10,842 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:11,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2021-11-21 01:27:11,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2021-11-21 01:27:12,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:12,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:27:13,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:13,986 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:27:13,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2091107443] [2021-11-21 01:27:13,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2091107443] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:13,987 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:13,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2021-11-21 01:27:13,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538927393] [2021-11-21 01:27:13,988 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:13,989 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-21 01:27:13,989 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:27:13,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-21 01:27:13,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-11-21 01:27:13,991 INFO L87 Difference]: Start difference. First operand 88 states and 127 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-21 01:27:14,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:14,685 INFO L93 Difference]: Finished difference Result 92 states and 130 transitions. [2021-11-21 01:27:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-21 01:27:14,690 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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 13 [2021-11-21 01:27:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:14,693 INFO L225 Difference]: With dead ends: 92 [2021-11-21 01:27:14,693 INFO L226 Difference]: Without dead ends: 88 [2021-11-21 01:27:14,694 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2021-11-21 01:27:14,695 INFO L933 BasicCegarLoop]: 120 mSDtfsCounter, 7 mSDsluCounter, 1124 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1244 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 61 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:14,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 1244 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 61 Unchecked, 0.4s Time] [2021-11-21 01:27:14,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-21 01:27:14,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-21 01:27:14,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4567901234567902) internal successors, (118), 81 states have internal predecessors, (118), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:27:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 126 transitions. [2021-11-21 01:27:14,711 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 126 transitions. Word has length 13 [2021-11-21 01:27:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:14,712 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 126 transitions. [2021-11-21 01:27:14,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2021-11-21 01:27:14,713 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 126 transitions. [2021-11-21 01:27:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:27:14,714 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:14,714 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:14,744 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-21 01:27:14,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:27:14,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:14,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:14,923 INFO L85 PathProgramCache]: Analyzing trace with hash -2003357637, now seen corresponding path program 1 times [2021-11-21 01:27:14,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:14,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [222039075] [2021-11-21 01:27:14,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:14,925 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:14,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:14,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:14,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-21 01:27:15,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:16,003 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:27:16,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:16,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:16,273 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:27:16,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:16,675 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:27:16,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [222039075] [2021-11-21 01:27:16,675 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [222039075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:16,676 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:16,676 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2021-11-21 01:27:16,676 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139253183] [2021-11-21 01:27:16,676 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:16,677 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-21 01:27:16,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:27:16,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-21 01:27:16,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-21 01:27:16,679 INFO L87 Difference]: Start difference. First operand 88 states and 126 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-11-21 01:27:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:17,104 INFO L93 Difference]: Finished difference Result 94 states and 131 transitions. [2021-11-21 01:27:17,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-21 01:27:17,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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 18 [2021-11-21 01:27:17,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:17,108 INFO L225 Difference]: With dead ends: 94 [2021-11-21 01:27:17,108 INFO L226 Difference]: Without dead ends: 88 [2021-11-21 01:27:17,108 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-21 01:27:17,110 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 137 mSDsluCounter, 186 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:17,110 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 304 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-21 01:27:17,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2021-11-21 01:27:17,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2021-11-21 01:27:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 81 states have (on average 1.4320987654320987) internal successors, (116), 81 states have internal predecessors, (116), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:27:17,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 124 transitions. [2021-11-21 01:27:17,123 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 124 transitions. Word has length 18 [2021-11-21 01:27:17,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:17,123 INFO L470 AbstractCegarLoop]: Abstraction has 88 states and 124 transitions. [2021-11-21 01:27:17,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-11-21 01:27:17,123 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 124 transitions. [2021-11-21 01:27:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:27:17,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:17,125 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:17,165 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-21 01:27:17,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:27:17,339 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:17,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:17,340 INFO L85 PathProgramCache]: Analyzing trace with hash -2001510595, now seen corresponding path program 1 times [2021-11-21 01:27:17,341 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:17,341 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [256237561] [2021-11-21 01:27:17,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:17,341 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:17,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:17,342 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:17,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-21 01:27:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:18,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-21 01:27:18,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:20,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:20,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:27:23,457 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:23,458 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:27:23,458 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [256237561] [2021-11-21 01:27:23,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [256237561] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:23,458 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:23,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-11-21 01:27:23,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170074655] [2021-11-21 01:27:23,459 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:23,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:27:23,460 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:27:23,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:27:23,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:27:23,461 INFO L87 Difference]: Start difference. First operand 88 states and 124 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-11-21 01:27:31,996 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.44s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:34,562 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:36,639 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:39,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:40,904 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.18s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:43,305 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:45,468 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2021-11-21 01:27:45,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:45,572 INFO L93 Difference]: Finished difference Result 95 states and 131 transitions. [2021-11-21 01:27:45,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:27:45,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 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 18 [2021-11-21 01:27:45,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:45,576 INFO L225 Difference]: With dead ends: 95 [2021-11-21 01:27:45,576 INFO L226 Difference]: Without dead ends: 89 [2021-11-21 01:27:45,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2021-11-21 01:27:45,578 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 197 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 12 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.7s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:45,578 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 435 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 166 Invalid, 6 Unknown, 0 Unchecked, 20.7s Time] [2021-11-21 01:27:45,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2021-11-21 01:27:45,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2021-11-21 01:27:45,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 79 states have (on average 1.4303797468354431) internal successors, (113), 79 states have internal predecessors, (113), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:27:45,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 121 transitions. [2021-11-21 01:27:45,593 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 121 transitions. Word has length 18 [2021-11-21 01:27:45,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:45,593 INFO L470 AbstractCegarLoop]: Abstraction has 86 states and 121 transitions. [2021-11-21 01:27:45,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 9 states have internal predecessors, (35), 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) [2021-11-21 01:27:45,594 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 121 transitions. [2021-11-21 01:27:45,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-21 01:27:45,595 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:45,596 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:45,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-21 01:27:45,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:27:45,815 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:45,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:45,816 INFO L85 PathProgramCache]: Analyzing trace with hash -106452547, now seen corresponding path program 1 times [2021-11-21 01:27:45,816 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:45,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1175102257] [2021-11-21 01:27:45,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:45,817 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:45,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:45,818 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:45,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-21 01:27:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:46,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:27:46,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:47,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:47,428 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:27:48,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:48,010 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:27:48,010 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1175102257] [2021-11-21 01:27:48,010 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1175102257] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:48,010 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:48,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-21 01:27:48,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273666804] [2021-11-21 01:27:48,011 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:48,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-21 01:27:48,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:27:48,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-21 01:27:48,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-21 01:27:48,012 INFO L87 Difference]: Start difference. First operand 86 states and 121 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-11-21 01:27:48,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:48,341 INFO L93 Difference]: Finished difference Result 156 states and 218 transitions. [2021-11-21 01:27:48,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:27:48,347 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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 18 [2021-11-21 01:27:48,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:48,349 INFO L225 Difference]: With dead ends: 156 [2021-11-21 01:27:48,349 INFO L226 Difference]: Without dead ends: 84 [2021-11-21 01:27:48,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:27:48,351 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 9 mSDsluCounter, 612 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 721 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 10 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:48,352 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 721 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 10 Unchecked, 0.1s Time] [2021-11-21 01:27:48,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-11-21 01:27:48,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2021-11-21 01:27:48,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 73 states have (on average 1.3972602739726028) internal successors, (102), 73 states have internal predecessors, (102), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-11-21 01:27:48,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 110 transitions. [2021-11-21 01:27:48,363 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 110 transitions. Word has length 18 [2021-11-21 01:27:48,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:48,363 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 110 transitions. [2021-11-21 01:27:48,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 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) [2021-11-21 01:27:48,364 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 110 transitions. [2021-11-21 01:27:48,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-21 01:27:48,365 INFO L506 BasicCegarLoop]: Found error trace [2021-11-21 01:27:48,366 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-21 01:27:48,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-21 01:27:48,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:27:48,581 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-21 01:27:48,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-21 01:27:48,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1979434587, now seen corresponding path program 1 times [2021-11-21 01:27:48,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-21 01:27:48,583 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1876589296] [2021-11-21 01:27:48,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-21 01:27:48,583 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-21 01:27:48,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat [2021-11-21 01:27:48,584 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-21 01:27:48,585 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-21 01:27:49,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-21 01:27:49,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-21 01:27:49,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-21 01:27:50,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:50,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-21 01:27:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-21 01:27:50,824 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-21 01:27:50,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1876589296] [2021-11-21 01:27:50,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1876589296] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-21 01:27:50,824 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-21 01:27:50,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-11-21 01:27:50,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544430433] [2021-11-21 01:27:50,825 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-21 01:27:50,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-21 01:27:50,826 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-21 01:27:50,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-21 01:27:50,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-11-21 01:27:50,826 INFO L87 Difference]: Start difference. First operand 80 states and 110 transitions. Second operand has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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) [2021-11-21 01:27:51,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-21 01:27:51,238 INFO L93 Difference]: Finished difference Result 80 states and 110 transitions. [2021-11-21 01:27:51,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-21 01:27:51,239 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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 19 [2021-11-21 01:27:51,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-21 01:27:51,239 INFO L225 Difference]: With dead ends: 80 [2021-11-21 01:27:51,239 INFO L226 Difference]: Without dead ends: 0 [2021-11-21 01:27:51,240 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-11-21 01:27:51,241 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 42 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-21 01:27:51,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 16 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-21 01:27:51,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-21 01:27:51,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-21 01:27:51,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-11-21 01:27:51,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-21 01:27:51,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-11-21 01:27:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-21 01:27:51,244 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-21 01:27:51,244 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.1) internal successors, (31), 10 states have internal predecessors, (31), 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) [2021-11-21 01:27:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-21 01:27:51,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-21 01:27:51,248 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-21 01:27:51,289 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 (7)] Ended with exit code 0 [2021-11-21 01:27:51,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/mathsat -unsat_core_generation=3 [2021-11-21 01:27:51,465 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-21 01:27:52,071 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2021-11-21 01:27:52,071 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2021-11-21 01:27:52,072 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2021-11-21 01:27:52,072 INFO L858 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-21 01:27:52,072 INFO L858 garLoopResultBuilder]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2021-11-21 01:27:52,072 INFO L858 garLoopResultBuilder]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2021-11-21 01:27:52,072 INFO L858 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-21 01:27:52,073 INFO L861 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2021-11-21 01:27:52,073 INFO L858 garLoopResultBuilder]: For program point L184(line 184) no Hoare annotation was computed. [2021-11-21 01:27:52,073 INFO L858 garLoopResultBuilder]: For program point L184-2(line 184) no Hoare annotation was computed. [2021-11-21 01:27:52,073 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-21 01:27:52,073 INFO L861 garLoopResultBuilder]: At program point L235(lines 217 236) the Hoare annotation is: true [2021-11-21 01:27:52,074 INFO L858 garLoopResultBuilder]: For program point L136(lines 136 137) no Hoare annotation was computed. [2021-11-21 01:27:52,074 INFO L854 garLoopResultBuilder]: At program point L120(lines 120 215) the Hoare annotation is: (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= |ULTIMATE.start___ieee754_atan2f_#res#1| (fp.add roundNearestTiesToEven ~pi_o_2~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000000000000000000000000000.0))))) (fp.gt |ULTIMATE.start___ieee754_atan2f_~y#1| (_ +zero 8 24)) (fp.gt (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hy~0#1|)) (_ +zero 8 24)) (= ~pi_o_2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 2000000000.0)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-11-21 01:27:52,074 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 207) no Hoare annotation was computed. [2021-11-21 01:27:52,074 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 179) no Hoare annotation was computed. [2021-11-21 01:27:52,075 INFO L858 garLoopResultBuilder]: For program point L203-1(lines 196 208) no Hoare annotation was computed. [2021-11-21 01:27:52,075 INFO L858 garLoopResultBuilder]: For program point L203-2(lines 203 207) no Hoare annotation was computed. [2021-11-21 01:27:52,075 INFO L858 garLoopResultBuilder]: For program point L187(lines 187 192) no Hoare annotation was computed. [2021-11-21 01:27:52,075 INFO L858 garLoopResultBuilder]: For program point L171(line 171) no Hoare annotation was computed. [2021-11-21 01:27:52,076 INFO L858 garLoopResultBuilder]: For program point L138(lines 138 139) no Hoare annotation was computed. [2021-11-21 01:27:52,076 INFO L858 garLoopResultBuilder]: For program point L155(line 155) no Hoare annotation was computed. [2021-11-21 01:27:52,076 INFO L858 garLoopResultBuilder]: For program point L155-2(line 155) no Hoare annotation was computed. [2021-11-21 01:27:52,076 INFO L854 garLoopResultBuilder]: At program point L139(line 139) the Hoare annotation is: false [2021-11-21 01:27:52,076 INFO L858 garLoopResultBuilder]: For program point L139-1(line 139) no Hoare annotation was computed. [2021-11-21 01:27:52,077 INFO L858 garLoopResultBuilder]: For program point L189(lines 189 192) no Hoare annotation was computed. [2021-11-21 01:27:52,077 INFO L858 garLoopResultBuilder]: For program point L189-2(lines 187 192) no Hoare annotation was computed. [2021-11-21 01:27:52,077 INFO L858 garLoopResultBuilder]: For program point L173(line 173) no Hoare annotation was computed. [2021-11-21 01:27:52,077 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-21 01:27:52,077 INFO L858 garLoopResultBuilder]: For program point L157(lines 157 181) no Hoare annotation was computed. [2021-11-21 01:27:52,078 INFO L858 garLoopResultBuilder]: For program point L157-1(lines 120 215) no Hoare annotation was computed. [2021-11-21 01:27:52,078 INFO L858 garLoopResultBuilder]: For program point L124-1(lines 124 128) no Hoare annotation was computed. [2021-11-21 01:27:52,078 INFO L854 garLoopResultBuilder]: At program point L124-2(lines 124 128) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (fp.gt |ULTIMATE.start___ieee754_atan2f_~y#1| (_ +zero 8 24)) (= ~pi_o_2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 2000000000.0)))) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~x#1|) (= .cse0 |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven))) [2021-11-21 01:27:52,078 INFO L858 garLoopResultBuilder]: For program point L124-3(lines 124 128) no Hoare annotation was computed. [2021-11-21 01:27:52,079 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 180) no Hoare annotation was computed. [2021-11-21 01:27:52,079 INFO L858 garLoopResultBuilder]: For program point L175(line 175) no Hoare annotation was computed. [2021-11-21 01:27:52,079 INFO L858 garLoopResultBuilder]: For program point L142(lines 142 152) no Hoare annotation was computed. [2021-11-21 01:27:52,079 INFO L858 garLoopResultBuilder]: For program point L142-2(lines 120 215) no Hoare annotation was computed. [2021-11-21 01:27:52,079 INFO L854 garLoopResultBuilder]: At program point L192(line 192) the Hoare annotation is: false [2021-11-21 01:27:52,080 INFO L858 garLoopResultBuilder]: For program point L159(lines 159 168) no Hoare annotation was computed. [2021-11-21 01:27:52,080 INFO L854 garLoopResultBuilder]: At program point L192-1(line 192) the Hoare annotation is: false [2021-11-21 01:27:52,080 INFO L858 garLoopResultBuilder]: For program point L192-2(line 192) no Hoare annotation was computed. [2021-11-21 01:27:52,080 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 151) no Hoare annotation was computed. [2021-11-21 01:27:52,080 INFO L858 garLoopResultBuilder]: For program point L226(lines 226 234) no Hoare annotation was computed. [2021-11-21 01:27:52,081 INFO L858 garLoopResultBuilder]: For program point L193(lines 193 214) no Hoare annotation was computed. [2021-11-21 01:27:52,081 INFO L858 garLoopResultBuilder]: For program point L160(line 160) no Hoare annotation was computed. [2021-11-21 01:27:52,081 INFO L858 garLoopResultBuilder]: For program point L226-2(lines 226 234) no Hoare annotation was computed. [2021-11-21 01:27:52,081 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-21 01:27:52,081 INFO L858 garLoopResultBuilder]: For program point L210(line 210) no Hoare annotation was computed. [2021-11-21 01:27:52,082 INFO L858 garLoopResultBuilder]: For program point L177(line 177) no Hoare annotation was computed. [2021-11-21 01:27:52,082 INFO L858 garLoopResultBuilder]: For program point L144(line 144) no Hoare annotation was computed. [2021-11-21 01:27:52,082 INFO L858 garLoopResultBuilder]: For program point L144-2(line 144) no Hoare annotation was computed. [2021-11-21 01:27:52,082 INFO L858 garLoopResultBuilder]: For program point L194(line 194) no Hoare annotation was computed. [2021-11-21 01:27:52,082 INFO L858 garLoopResultBuilder]: For program point L145(line 145) no Hoare annotation was computed. [2021-11-21 01:27:52,083 INFO L858 garLoopResultBuilder]: For program point L162(line 162) no Hoare annotation was computed. [2021-11-21 01:27:52,083 INFO L858 garLoopResultBuilder]: For program point L212(line 212) no Hoare annotation was computed. [2021-11-21 01:27:52,083 INFO L858 garLoopResultBuilder]: For program point L196(line 196) no Hoare annotation was computed. [2021-11-21 01:27:52,083 INFO L858 garLoopResultBuilder]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2021-11-21 01:27:52,084 INFO L854 garLoopResultBuilder]: At program point L130-2(lines 130 134) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ~tiny_atan2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 1.0 1000000000000000000000000000000.0)))) (= (fp ((_ extract 31 31) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 30 23) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|) ((_ extract 22 0) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) .cse0) (fp.gt |ULTIMATE.start___ieee754_atan2f_~y#1| (_ +zero 8 24)) (= ~pi_o_2~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode (/ 3141592741.0 2000000000.0)))) (= .cse0 |ULTIMATE.start___ieee754_atan2f_~x#1|) (exists ((|v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5| (_ BitVec 32))) (let ((.cse1 (select (select |#memory_int| |v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5|) (_ bv0 32)))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))) (= (bvand (_ bv2147483647 32) .cse1) |ULTIMATE.start___ieee754_atan2f_~ix~2#1|)))) (= .cse0 |ULTIMATE.start_main_~x~0#1|) (= currentRoundingMode roundNearestTiesToEven))) [2021-11-21 01:27:52,084 INFO L858 garLoopResultBuilder]: For program point L130-3(lines 130 134) no Hoare annotation was computed. [2021-11-21 01:27:52,084 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-11-21 01:27:52,084 INFO L858 garLoopResultBuilder]: For program point L230(lines 230 233) no Hoare annotation was computed. [2021-11-21 01:27:52,084 INFO L858 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2021-11-21 01:27:52,085 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-21 01:27:52,085 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 231) no Hoare annotation was computed. [2021-11-21 01:27:52,085 INFO L858 garLoopResultBuilder]: For program point L231(line 231) no Hoare annotation was computed. [2021-11-21 01:27:52,085 INFO L858 garLoopResultBuilder]: For program point L198-1(lines 198 202) no Hoare annotation was computed. [2021-11-21 01:27:52,085 INFO L854 garLoopResultBuilder]: At program point L198-2(lines 198 202) the Hoare annotation is: false [2021-11-21 01:27:52,086 INFO L858 garLoopResultBuilder]: For program point L149(line 149) no Hoare annotation was computed. [2021-11-21 01:27:52,086 INFO L858 garLoopResultBuilder]: For program point L166(line 166) no Hoare annotation was computed. [2021-11-21 01:27:52,086 INFO L858 garLoopResultBuilder]: For program point L64(lines 64 65) no Hoare annotation was computed. [2021-11-21 01:27:52,086 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2021-11-21 01:27:52,086 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2021-11-21 01:27:52,087 INFO L858 garLoopResultBuilder]: For program point L73(lines 73 74) no Hoare annotation was computed. [2021-11-21 01:27:52,087 INFO L858 garLoopResultBuilder]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2021-11-21 01:27:52,087 INFO L861 garLoopResultBuilder]: At program point L57-2(lines 57 61) the Hoare annotation is: true [2021-11-21 01:27:52,087 INFO L858 garLoopResultBuilder]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2021-11-21 01:27:52,087 INFO L861 garLoopResultBuilder]: At program point L78(line 78) the Hoare annotation is: true [2021-11-21 01:27:52,087 INFO L858 garLoopResultBuilder]: For program point L78-1(line 78) no Hoare annotation was computed. [2021-11-21 01:27:52,088 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 69) no Hoare annotation was computed. [2021-11-21 01:27:52,088 INFO L858 garLoopResultBuilder]: For program point L79(lines 79 95) no Hoare annotation was computed. [2021-11-21 01:27:52,088 INFO L858 garLoopResultBuilder]: For program point L71(lines 71 96) no Hoare annotation was computed. [2021-11-21 01:27:52,088 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2021-11-21 01:27:52,088 INFO L858 garLoopResultBuilder]: For program point L63(lines 63 70) no Hoare annotation was computed. [2021-11-21 01:27:52,089 INFO L858 garLoopResultBuilder]: For program point L88(lines 88 94) no Hoare annotation was computed. [2021-11-21 01:27:52,089 INFO L858 garLoopResultBuilder]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2021-11-21 01:27:52,089 INFO L858 garLoopResultBuilder]: For program point L113(line 113) no Hoare annotation was computed. [2021-11-21 01:27:52,089 INFO L858 garLoopResultBuilder]: For program point L80(lines 80 86) no Hoare annotation was computed. [2021-11-21 01:27:52,089 INFO L858 garLoopResultBuilder]: For program point L113-2(line 113) no Hoare annotation was computed. [2021-11-21 01:27:52,090 INFO L858 garLoopResultBuilder]: For program point L109(lines 109 114) no Hoare annotation was computed. [2021-11-21 01:27:52,090 INFO L858 garLoopResultBuilder]: For program point L72(lines 72 75) no Hoare annotation was computed. [2021-11-21 01:27:52,090 INFO L858 garLoopResultBuilder]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2021-11-21 01:27:52,094 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-21 01:27:52,096 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-21 01:27:52,109 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,113 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,115 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,115 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,115 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,116 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,116 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,117 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,117 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,117 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,119 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,120 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,120 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,120 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,120 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,122 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,123 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 01:27:52 BoogieIcfgContainer [2021-11-21 01:27:52,124 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-21 01:27:52,125 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-21 01:27:52,125 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-21 01:27:52,125 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-21 01:27:52,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 01:27:07" (3/4) ... [2021-11-21 01:27:52,129 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-21 01:27:52,136 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-21 01:27:52,137 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-11-21 01:27:52,147 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2021-11-21 01:27:52,148 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-21 01:27:52,149 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-21 01:27:52,150 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-21 01:27:52,178 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 01:27:52,179 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, pi_o_2, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000)))) && ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) && ~fp.gt~FLOAT(~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]), ~Pluszero~LONGDOUBLE())) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-11-21 01:27:52,222 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/witness.graphml [2021-11-21 01:27:52,222 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-21 01:27:52,223 INFO L158 Benchmark]: Toolchain (without parser) took 56637.94ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.8MB in the beginning and 32.1MB in the end (delta: -5.2MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2021-11-21 01:27:52,224 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-21 01:27:52,224 INFO L158 Benchmark]: CACSL2BoogieTranslator took 572.89ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.6MB in the beginning and 48.3MB in the end (delta: -21.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2021-11-21 01:27:52,224 INFO L158 Benchmark]: Boogie Procedure Inliner took 98.07ms. Allocated memory is still 69.2MB. Free memory was 48.3MB in the beginning and 45.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:27:52,225 INFO L158 Benchmark]: Boogie Preprocessor took 116.59ms. Allocated memory is still 69.2MB. Free memory was 45.9MB in the beginning and 43.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-21 01:27:52,225 INFO L158 Benchmark]: RCFGBuilder took 11442.68ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 35.2MB in the end (delta: 8.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-21 01:27:52,226 INFO L158 Benchmark]: TraceAbstraction took 44302.07ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 39.8MB in the end (delta: -5.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. [2021-11-21 01:27:52,226 INFO L158 Benchmark]: Witness Printer took 97.71ms. Allocated memory is still 69.2MB. Free memory was 39.3MB in the beginning and 32.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-21 01:27:52,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 50.3MB. Free memory was 31.8MB in the beginning and 31.8MB in the end (delta: 38.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 572.89ms. Allocated memory was 50.3MB in the beginning and 69.2MB in the end (delta: 18.9MB). Free memory was 26.6MB in the beginning and 48.3MB in the end (delta: -21.7MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 98.07ms. Allocated memory is still 69.2MB. Free memory was 48.3MB in the beginning and 45.9MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.59ms. Allocated memory is still 69.2MB. Free memory was 45.9MB in the beginning and 43.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 11442.68ms. Allocated memory is still 69.2MB. Free memory was 43.2MB in the beginning and 35.2MB in the end (delta: 8.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * TraceAbstraction took 44302.07ms. Allocated memory is still 69.2MB. Free memory was 34.6MB in the beginning and 39.8MB in the end (delta: -5.2MB). Peak memory consumption was 14.8MB. Max. memory is 16.1GB. * Witness Printer took 97.71ms. Allocated memory is still 69.2MB. Free memory was 39.3MB in the beginning and 32.1MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * 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 - PositiveResult [Line: 231]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 44.2s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 24.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 mSolverCounterUnknown, 395 SdHoareTripleChecker+Valid, 21.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 392 mSDsluCounter, 2852 SdHoareTripleChecker+Invalid, 20.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 71 IncrementalHoareTripleChecker+Unchecked, 2269 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 202 IncrementalHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 583 mSDtfsCounter, 202 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 193 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 7 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 35 PreInvPairs, 39 NumberOfFragments, 151 HoareAnnotationTreeSize, 35 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 5.8s SatisfiabilityAnalysisTime, 11.7s InterpolantComputationTime, 97 NumberOfCodeBlocks, 97 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 182 ConstructedInterpolants, 31 QuantifiedInterpolants, 1364 SizeOfPredicates, 36 NumberOfNonLiveVariables, 639 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 124]: Loop Invariant [2021-11-21 01:27:52,240 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,241 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 120]: Loop Invariant [2021-11-21 01:27:52,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,242 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,243 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,244 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, pi_o_2, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1/1000000000000000000000000000000)))) && ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) && ~fp.gt~FLOAT(~fp~LONGDOUBLE(hy[31:31], hy[30:23], hy[22:0]), ~Pluszero~LONGDOUBLE())) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant [2021-11-21 01:27:52,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,245 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,246 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,246 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,246 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-11-21 01:27:52,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,247 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5,QUANTIFIED] [2021-11-21 01:27:52,248 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((tiny_atan2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1/1000000000000000000000000000000)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && ~fp.gt~FLOAT(y, ~Pluszero~LONGDOUBLE())) && pi_o_2 == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 3141592741/2000000000))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][31:31], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][30:23], unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32][22:0]) && ~bvand32(2147483647bv32, unknown-#memory_int-unknown[v_ULTIMATE.start___ieee754_atan2f_~#gf_u~2#1.base_5][0bv32]) == ix)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven RESULT: Ultimate proved your program to be correct! [2021-11-21 01:27:52,395 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_20ce2110-710f-4491-93c5-d98ec0125cd2/bin/utaipan-TEXQjIfE4P/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE