./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF --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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:47,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:47,140 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:47,190 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:47,191 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:47,195 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:47,197 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:47,201 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:47,204 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:47,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:47,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:47,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:47,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:47,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:47,217 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:47,224 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:47,226 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:47,227 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:47,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:47,236 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:47,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:47,240 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:47,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:47,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:47,253 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:47,253 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:47,254 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:47,256 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:47,256 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:47,258 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:47,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:47,259 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:47,261 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:47,262 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:47,264 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:47,264 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:47,265 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:47,265 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:47,266 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:47,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:47,267 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:47,268 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-12 22:27:47,310 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:47,310 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:47,312 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:47,312 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:47,312 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:47,313 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:47,313 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:47,313 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-12 22:27:47,320 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:47,320 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:47,321 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-12 22:27:47,321 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-12 22:27:47,322 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:47,322 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-12 22:27:47,322 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-12 22:27:47,322 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-12 22:27:47,323 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:47,323 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:47,324 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-12 22:27:47,324 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:47,324 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:47,324 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:47,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:47,325 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:47,325 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:47,325 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:47,325 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:47,326 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:47,326 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:47,327 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:47,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:47,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:47,328 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:47,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:47,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:47,329 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-12 22:27:47,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-12 22:27:47,329 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:47,330 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:47,330 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:47,330 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_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2021-11-12 22:27:47,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:47,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:47,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:47,618 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:47,620 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:47,621 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-11-12 22:27:47,697 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/8011349c8/a03640a522ab4d0da998642956536ef1/FLAGb45c42e25 [2021-11-12 22:27:48,142 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:48,143 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-11-12 22:27:48,151 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/8011349c8/a03640a522ab4d0da998642956536ef1/FLAGb45c42e25 [2021-11-12 22:27:48,538 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/8011349c8/a03640a522ab4d0da998642956536ef1 [2021-11-12 22:27:48,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:48,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:48,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:48,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:48,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:48,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:48,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241146af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48, skipping insertion in model container [2021-11-12 22:27:48,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:48,556 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:48,582 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:48,790 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2021-11-12 22:27:48,793 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:48,803 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:48,857 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2021-11-12 22:27:48,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:48,876 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:48,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48 WrapperNode [2021-11-12 22:27:48,876 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:48,878 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:48,878 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:48,878 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:48,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:48,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:48,962 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:48,972 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:48,972 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:48,972 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:48,980 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:48,981 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:48,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:48,986 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:49,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:49,007 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:49,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:49,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:49,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:49,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:49,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:49,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (1/1) ... [2021-11-12 22:27:49,027 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:49,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:49,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:49,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:49,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-12 22:27:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-12 22:27:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-12 22:27:49,096 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2021-11-12 22:27:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2021-11-12 22:27:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-12 22:27:49,097 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-12 22:27:49,097 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-12 22:27:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:49,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-12 22:27:49,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-12 22:27:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-12 22:27:49,099 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-12 22:27:49,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:27:49,774 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:27:49,774 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-12 22:27:49,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:49 BoogieIcfgContainer [2021-11-12 22:27:49,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:27:49,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:27:49,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:27:49,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:27:49,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:48" (1/3) ... [2021-11-12 22:27:49,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba38bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:49, skipping insertion in model container [2021-11-12 22:27:49,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:48" (2/3) ... [2021-11-12 22:27:49,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ba38bbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:27:49, skipping insertion in model container [2021-11-12 22:27:49,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:49" (3/3) ... [2021-11-12 22:27:49,787 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2021-11-12 22:27:49,798 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:27:49,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:27:49,859 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:27:49,865 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 [2021-11-12 22:27:49,865 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:27:49,885 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 67 states have internal predecessors, (110), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:27:49,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-12 22:27:49,891 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:49,892 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:49,893 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:49,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:49,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1296482856, now seen corresponding path program 1 times [2021-11-12 22:27:49,908 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:49,908 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263897447] [2021-11-12 22:27:49,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:49,909 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:27:50,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-11-12 22:27:50,177 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-12 22:27:50,178 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263897447] [2021-11-12 22:27:50,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263897447] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-12 22:27:50,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:27:50,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-12 22:27:50,182 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746690218] [2021-11-12 22:27:50,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:27:50,187 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:27:50,188 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-12 22:27:50,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:27:50,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:27:50,225 INFO L87 Difference]: Start difference. First operand has 78 states, 66 states have (on average 1.6666666666666667) internal successors, (110), 67 states have internal predecessors, (110), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:27:50,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:27:50,310 INFO L93 Difference]: Finished difference Result 149 states and 241 transitions. [2021-11-12 22:27:50,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:27:50,314 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2021-11-12 22:27:50,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:27:50,325 INFO L225 Difference]: With dead ends: 149 [2021-11-12 22:27:50,325 INFO L226 Difference]: Without dead ends: 75 [2021-11-12 22:27:50,330 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 [2021-11-12 22:27:50,336 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30.42ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.78ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.41ms IncrementalHoareTripleChecker+Time [2021-11-12 22:27:50,337 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 14 Unknown, 0 Unchecked, 3.78ms Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 36.41ms Time] [2021-11-12 22:27:50,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-12 22:27:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-12 22:27:50,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 64 states have (on average 1.421875) internal successors, (91), 64 states have internal predecessors, (91), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:27:50,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2021-11-12 22:27:50,398 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 19 [2021-11-12 22:27:50,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:27:50,400 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2021-11-12 22:27:50,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:27:50,401 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2021-11-12 22:27:50,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 22:27:50,405 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:27:50,405 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:27:50,405 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-12 22:27:50,406 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:27:50,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:27:50,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1862640079, now seen corresponding path program 1 times [2021-11-12 22:27:50,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-12 22:27:50,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427001830] [2021-11-12 22:27:50,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:27:50,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-12 22:27:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:27:50,538 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-12 22:27:50,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-12 22:27:50,663 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-12 22:27:50,664 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-12 22:27:50,665 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:27:50,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-12 22:27:50,670 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-12 22:27:50,673 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:27:50,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:27:50 BoogieIcfgContainer [2021-11-12 22:27:50,735 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:27:50,736 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:27:50,736 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:27:50,736 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:27:50,737 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:27:49" (3/4) ... [2021-11-12 22:27:50,742 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-12 22:27:50,742 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:27:50,743 INFO L158 Benchmark]: Toolchain (without parser) took 2201.36ms. Allocated memory is still 119.5MB. Free memory was 86.2MB in the beginning and 56.7MB in the end (delta: 29.5MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2021-11-12 22:27:50,745 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 42.2MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:50,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 333.61ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 92.5MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:27:50,751 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.75ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:50,752 INFO L158 Benchmark]: Boogie Preprocessor took 46.38ms. Allocated memory is still 119.5MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:27:50,755 INFO L158 Benchmark]: RCFGBuilder took 758.91ms. Allocated memory is still 119.5MB. Free memory was 87.7MB in the beginning and 62.0MB in the end (delta: 25.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2021-11-12 22:27:50,756 INFO L158 Benchmark]: TraceAbstraction took 955.75ms. Allocated memory is still 119.5MB. Free memory was 61.2MB in the beginning and 57.0MB in the end (delta: 4.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. [2021-11-12 22:27:50,756 INFO L158 Benchmark]: Witness Printer took 6.14ms. Allocated memory is still 119.5MB. Free memory was 57.0MB in the beginning and 56.7MB in the end (delta: 316.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:27:50,763 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 42.3MB in the beginning and 42.2MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 333.61ms. Allocated memory is still 119.5MB. Free memory was 86.0MB in the beginning and 92.5MB in the end (delta: -6.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.75ms. Allocated memory is still 119.5MB. Free memory was 92.5MB in the beginning and 90.2MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.38ms. Allocated memory is still 119.5MB. Free memory was 90.2MB in the beginning and 88.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 758.91ms. Allocated memory is still 119.5MB. Free memory was 87.7MB in the beginning and 62.0MB in the end (delta: 25.7MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 955.75ms. Allocated memory is still 119.5MB. Free memory was 61.2MB in the beginning and 57.0MB in the end (delta: 4.2MB). Peak memory consumption was 5.7MB. Max. memory is 16.1GB. * Witness Printer took 6.14ms. Allocated memory is still 119.5MB. Free memory was 57.0MB in the beginning and 56.7MB in the end (delta: 316.1kB). 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: 236]: 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 15, overapproximation of someUnaryDOUBLEoperation at line 47, overapproximation of bitwiseAnd at line 138, overapproximation of someBinaryArithmeticFLOAToperation at line 140. Possible FailurePath: [L32-L37] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L39-L44] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L46-L50] 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, }; [L52-L54] 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; [L120-L121] static const float tiny_atan2 = 1.0e-30, zero_atan2 = 0.0, pi_lo_atan2 = -8.7422776573e-08; [L226] float x = __VERIFIER_nondet_float(); [L227] float y = __VERIFIER_nondet_float(); [L229] CALL, EXPR isnan_float(x) VAL [\old(x)=1000000000000000000000000000001, aT_atan={6:0}, atanhi_atan={7:0}, 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, zero_atan2=0] [L15] return x != x; [L229] RET, EXPR isnan_float(x) VAL [aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, zero_atan2=0] [L229] isnan_float(x) || isnan_float(y) VAL [aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(x)=1, isnan_float(x) || isnan_float(y)=1, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, tiny_atan2=1/1000000000000000000000000000000, x=1000000000000000000000000000001, zero_atan2=0] [L229] COND TRUE isnan_float(x) || isnan_float(y) [L232] CALL, EXPR __ieee754_atan2f(y, x) [L124] float z; [L125] __int32_t k, m, hx, hy, ix, iy; VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, 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] [L128] ieee_float_shape_type gf_u; [L129] gf_u.value = (x) [L130] EXPR gf_u.word [L130] (hx) = gf_u.word [L132] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, 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] [L134] ieee_float_shape_type gf_u; [L135] gf_u.value = (y) [L136] EXPR gf_u.word [L136] (hy) = gf_u.word [L138] iy = hy & 0x7fffffff VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-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] [L139] COND TRUE ((ix) > 0x7f800000L) || ((iy) > 0x7f800000L) [L140] return x + y; VAL [\old(x)=1000000000000000000000000000001, \old(y)=1000000000000000000000000000002, aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, hx=-2, hy=-1, 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] [L232] RET, EXPR __ieee754_atan2f(y, x) [L232] float res = __ieee754_atan2f(y, x); [L235] CALL, EXPR isnan_float(res) VAL [\old(x)=1000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={7:0}, 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, zero_atan2=0] [L15] return x != x; [L235] RET, EXPR isnan_float(res) VAL [aT_atan={6:0}, atanhi_atan={7:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000, isnan_float(res)=0, 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] [L235] COND TRUE !isnan_float(res) [L236] reach_error() VAL [aT_atan={6:0}, atanhi_atan={7:0}, 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 4 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 36.41ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 95 SdHoareTripleChecker+Invalid, 30.42ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14 IncrementalHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 95 mSDtfsCounter, 14 mSolverCounterSat, 3.78ms 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=78occurred 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, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 [2021-11-12 22:27:50,816 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/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_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF --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 ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-12 22:27:53,227 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-12 22:27:53,230 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-12 22:27:53,281 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-12 22:27:53,282 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-12 22:27:53,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-12 22:27:53,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-12 22:27:53,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-12 22:27:53,295 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-12 22:27:53,303 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-12 22:27:53,304 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-12 22:27:53,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-12 22:27:53,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-12 22:27:53,309 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-12 22:27:53,311 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-12 22:27:53,315 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-12 22:27:53,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-12 22:27:53,318 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-12 22:27:53,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-12 22:27:53,327 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-12 22:27:53,329 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-12 22:27:53,333 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-12 22:27:53,334 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-12 22:27:53,335 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-12 22:27:53,338 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-12 22:27:53,338 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-12 22:27:53,339 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-12 22:27:53,340 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-12 22:27:53,340 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-12 22:27:53,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-12 22:27:53,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-12 22:27:53,342 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-12 22:27:53,343 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-12 22:27:53,344 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-12 22:27:53,346 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-12 22:27:53,346 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-12 22:27:53,347 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-12 22:27:53,347 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-12 22:27:53,347 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-12 22:27:53,349 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-12 22:27:53,350 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-12 22:27:53,351 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-12 22:27:53,392 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-12 22:27:53,392 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-12 22:27:53,393 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-12 22:27:53,393 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-12 22:27:53,394 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-12 22:27:53,394 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-12 22:27:53,394 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-12 22:27:53,394 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-12 22:27:53,394 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-12 22:27:53,395 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-12 22:27:53,397 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-12 22:27:53,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-12 22:27:53,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-12 22:27:53,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-12 22:27:53,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-12 22:27:53,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-12 22:27:53,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-12 22:27:53,398 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-12 22:27:53,398 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-12 22:27:53,399 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-12 22:27:53,399 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-12 22:27:53,399 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-12 22:27:53,399 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-12 22:27:53,399 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-12 22:27:53,400 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-12 22:27:53,400 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-12 22:27:53,400 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-12 22:27:53,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:53,400 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-12 22:27:53,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-12 22:27:53,401 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-12 22:27:53,401 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-12 22:27:53,401 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-12 22:27:53,401 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-12 22:27:53,402 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-12 22:27:53,402 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-12 22:27:53,402 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_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ef3aead09e1d04146222ba824ba5fd2f951ea3a53aa52ba41e6fea5dd6ebb3d5 [2021-11-12 22:27:53,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-12 22:27:53,848 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-12 22:27:53,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-12 22:27:53,852 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-12 22:27:53,853 INFO L275 PluginConnector]: CDTParser initialized [2021-11-12 22:27:53,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/../../sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-11-12 22:27:53,924 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/abe47acf0/f24b798af88b4d6d91307f1f77270c87/FLAG76b4b6e39 [2021-11-12 22:27:54,429 INFO L306 CDTParser]: Found 1 translation units. [2021-11-12 22:27:54,430 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/sv-benchmarks/c/float-newlib/float_req_bl_0670.c [2021-11-12 22:27:54,441 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/abe47acf0/f24b798af88b4d6d91307f1f77270c87/FLAG76b4b6e39 [2021-11-12 22:27:54,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/data/abe47acf0/f24b798af88b4d6d91307f1f77270c87 [2021-11-12 22:27:54,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-12 22:27:54,748 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-12 22:27:54,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:54,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-12 22:27:54,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-12 22:27:54,756 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:54" (1/1) ... [2021-11-12 22:27:54,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397e6f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:54, skipping insertion in model container [2021-11-12 22:27:54,759 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 10:27:54" (1/1) ... [2021-11-12 22:27:54,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-12 22:27:54,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-12 22:27:55,139 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2021-11-12 22:27:55,148 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:55,174 INFO L203 MainTranslator]: Completed pre-run [2021-11-12 22:27:55,260 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/sv-benchmarks/c/float-newlib/float_req_bl_0670.c[5373,5386] [2021-11-12 22:27:55,273 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-12 22:27:55,304 INFO L208 MainTranslator]: Completed translation [2021-11-12 22:27:55,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55 WrapperNode [2021-11-12 22:27:55,305 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-12 22:27:55,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:55,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-12 22:27:55,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-12 22:27:55,315 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,386 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-12 22:27:55,388 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-12 22:27:55,389 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-12 22:27:55,389 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-12 22:27:55,397 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,421 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,453 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,470 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-12 22:27:55,486 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-12 22:27:55,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-12 22:27:55,487 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-12 22:27:55,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (1/1) ... [2021-11-12 22:27:55,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-12 22:27:55,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 [2021-11-12 22:27:55,521 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-12 22:27:55,533 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-12 22:27:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-12 22:27:55,564 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-12 22:27:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-12 22:27:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-12 22:27:55,565 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2021-11-12 22:27:55,566 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2021-11-12 22:27:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2021-11-12 22:27:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2021-11-12 22:27:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-12 22:27:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-12 22:27:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-12 22:27:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-12 22:27:55,567 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2021-11-12 22:27:55,567 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2021-11-12 22:27:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-12 22:27:55,568 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-12 22:28:09,529 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-12 22:28:09,529 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-12 22:28:09,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:09 BoogieIcfgContainer [2021-11-12 22:28:09,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-12 22:28:09,534 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-12 22:28:09,534 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-12 22:28:09,537 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-12 22:28:09,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 10:27:54" (1/3) ... [2021-11-12 22:28:09,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2569071a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:28:09, skipping insertion in model container [2021-11-12 22:28:09,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 10:27:55" (2/3) ... [2021-11-12 22:28:09,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2569071a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 10:28:09, skipping insertion in model container [2021-11-12 22:28:09,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:09" (3/3) ... [2021-11-12 22:28:09,541 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0670.c [2021-11-12 22:28:09,546 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-12 22:28:09,546 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-12 22:28:09,613 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-12 22:28:09,620 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 [2021-11-12 22:28:09,620 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-12 22:28:09,639 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 90 states have internal predecessors, (145), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:28:09,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-11-12 22:28:09,646 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:09,647 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:09,647 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:09,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:09,653 INFO L85 PathProgramCache]: Analyzing trace with hash 187834432, now seen corresponding path program 1 times [2021-11-12 22:28:09,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:09,669 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799740835] [2021-11-12 22:28:09,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:09,670 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:09,671 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:09,678 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:09,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-12 22:28:10,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:10,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-12 22:28:10,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:10,941 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:10,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:11,040 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:11,041 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799740835] [2021-11-12 22:28:11,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1799740835] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-12 22:28:11,043 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-12 22:28:11,043 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-12 22:28:11,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172791411] [2021-11-12 22:28:11,047 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:11,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-12 22:28:11,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:11,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-12 22:28:11,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:28:11,099 INFO L87 Difference]: Start difference. First operand has 101 states, 89 states have (on average 1.6292134831460674) internal successors, (145), 90 states have internal predecessors, (145), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:28:11,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:11,141 INFO L93 Difference]: Finished difference Result 194 states and 310 transitions. [2021-11-12 22:28:11,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-12 22:28:11,143 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 21 [2021-11-12 22:28:11,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:11,151 INFO L225 Difference]: With dead ends: 194 [2021-11-12 22:28:11,151 INFO L226 Difference]: Without dead ends: 97 [2021-11-12 22:28:11,155 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-12 22:28:11,166 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.33ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:11,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 3.33ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-12 22:28:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-12 22:28:11,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-12 22:28:11,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4534883720930232) internal successors, (125), 86 states have internal predecessors, (125), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:28:11,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 139 transitions. [2021-11-12 22:28:11,206 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 139 transitions. Word has length 21 [2021-11-12 22:28:11,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:11,207 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 139 transitions. [2021-11-12 22:28:11,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:28:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 139 transitions. [2021-11-12 22:28:11,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-12 22:28:11,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:11,209 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:11,234 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-12 22:28:11,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:28:11,412 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:11,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:11,413 INFO L85 PathProgramCache]: Analyzing trace with hash 769881417, now seen corresponding path program 1 times [2021-11-12 22:28:11,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:11,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1649155353] [2021-11-12 22:28:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:11,423 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:11,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:11,425 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:11,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-12 22:28:12,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:12,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:28:12,354 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:15,252 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:28:15,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:25,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:28:25,324 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:25,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1649155353] [2021-11-12 22:28:25,324 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1649155353] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:25,324 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1694925771] [2021-11-12 22:28:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:25,325 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:25,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:28:25,327 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:28:25,332 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-12 22:28:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:29,381 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-12 22:28:29,383 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:32,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:32,375 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:37,276 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:28:37,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1694925771] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:28:37,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:28:37,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [12, 11, 10] total 27 [2021-11-12 22:28:37,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283395880] [2021-11-12 22:28:37,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:28:37,279 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:28:37,280 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:28:37,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:28:37,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=605, Unknown=0, NotChecked=0, Total=702 [2021-11-12 22:28:37,281 INFO L87 Difference]: Start difference. First operand 97 states and 139 transitions. Second operand has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:28:41,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:28:41,399 INFO L93 Difference]: Finished difference Result 159 states and 231 transitions. [2021-11-12 22:28:41,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:28:41,402 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2021-11-12 22:28:41,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:28:41,405 INFO L225 Difference]: With dead ends: 159 [2021-11-12 22:28:41,405 INFO L226 Difference]: Without dead ends: 154 [2021-11-12 22:28:41,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 59 SyntacticMatches, 4 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 15.8s TimeCoverageRelationStatistics Valid=132, Invalid=798, Unknown=0, NotChecked=0, Total=930 [2021-11-12 22:28:41,408 INFO L933 BasicCegarLoop]: 132 mSDtfsCounter, 79 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2126.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.38ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2210.55ms IncrementalHoareTripleChecker+Time [2021-11-12 22:28:41,408 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [83 Valid, 1024 Invalid, 113 Unknown, 0 Unchecked, 8.38ms Time], IncrementalHoareTripleChecker [5 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 2210.55ms Time] [2021-11-12 22:28:41,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-12 22:28:41,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 105. [2021-11-12 22:28:41,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 94 states have (on average 1.4148936170212767) internal successors, (133), 94 states have internal predecessors, (133), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:28:41,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 147 transitions. [2021-11-12 22:28:41,434 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 147 transitions. Word has length 23 [2021-11-12 22:28:41,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:28:41,435 INFO L470 AbstractCegarLoop]: Abstraction has 105 states and 147 transitions. [2021-11-12 22:28:41,435 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.125) internal successors, (17), 7 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:28:41,435 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 147 transitions. [2021-11-12 22:28:41,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:28:41,437 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:28:41,437 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:28:41,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:41,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-11-12 22:28:41,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:41,859 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:28:41,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:28:41,859 INFO L85 PathProgramCache]: Analyzing trace with hash -1728789200, now seen corresponding path program 1 times [2021-11-12 22:28:41,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:28:41,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [802264703] [2021-11-12 22:28:41,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:41,860 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:28:41,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:28:41,861 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:28:41,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-12 22:28:42,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:42,771 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-12 22:28:42,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:28:45,372 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:28:45,373 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:28:53,974 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:28:53,975 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:28:53,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [802264703] [2021-11-12 22:28:53,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [802264703] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-12 22:28:53,975 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [166186732] [2021-11-12 22:28:53,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:28:53,976 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-12 22:28:53,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 [2021-11-12 22:28:53,977 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-12 22:28:53,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2021-11-12 22:28:58,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:28:58,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-12 22:28:58,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:02,166 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:29:02,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:06,145 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-12 22:29:06,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [166186732] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:29:06,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2021-11-12 22:29:06,146 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [11, 10, 10] total 27 [2021-11-12 22:29:06,146 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508579101] [2021-11-12 22:29:06,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:06,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-11-12 22:29:06,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:06,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-11-12 22:29:06,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2021-11-12 22:29:06,149 INFO L87 Difference]: Start difference. First operand 105 states and 147 transitions. Second operand has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:29:12,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:12,699 INFO L93 Difference]: Finished difference Result 159 states and 230 transitions. [2021-11-12 22:29:12,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-12 22:29:12,700 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2021-11-12 22:29:12,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:12,702 INFO L225 Difference]: With dead ends: 159 [2021-11-12 22:29:12,702 INFO L226 Difference]: Without dead ends: 154 [2021-11-12 22:29:12,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 79 SyntacticMatches, 4 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 6 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2021-11-12 22:29:12,705 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 79 mSDsluCounter, 1786 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4470.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.55ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4626.42ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:12,706 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 2000 Invalid, 162 Unknown, 0 Unchecked, 8.55ms Time], IncrementalHoareTripleChecker [4 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 4626.42ms Time] [2021-11-12 22:29:12,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-11-12 22:29:12,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 110. [2021-11-12 22:29:12,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 99 states have (on average 1.4141414141414141) internal successors, (140), 99 states have internal predecessors, (140), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:29:12,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 154 transitions. [2021-11-12 22:29:12,723 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 154 transitions. Word has length 28 [2021-11-12 22:29:12,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:12,724 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 154 transitions. [2021-11-12 22:29:12,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 2.0) internal successors, (20), 8 states have internal predecessors, (20), 2 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:29:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 154 transitions. [2021-11-12 22:29:12,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-12 22:29:12,726 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:12,726 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:29:12,751 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:12,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2021-11-12 22:29:13,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/cvc4 --incremental --print-success --lang smt [2021-11-12 22:29:13,132 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:29:13,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:13,133 INFO L85 PathProgramCache]: Analyzing trace with hash -682677152, now seen corresponding path program 1 times [2021-11-12 22:29:13,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:13,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1081120075] [2021-11-12 22:29:13,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:13,134 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:13,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:13,135 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:13,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-12 22:29:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:14,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:29:14,002 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-12 22:29:15,046 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:29:16,194 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:16,194 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1081120075] [2021-11-12 22:29:16,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1081120075] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:29:16,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:29:16,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 13 [2021-11-12 22:29:16,195 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111067941] [2021-11-12 22:29:16,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:16,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-12 22:29:16,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:16,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-12 22:29:16,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-11-12 22:29:16,196 INFO L87 Difference]: Start difference. First operand 110 states and 154 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:29:17,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:17,166 INFO L93 Difference]: Finished difference Result 187 states and 265 transitions. [2021-11-12 22:29:17,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-12 22:29:17,168 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2021-11-12 22:29:17,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:17,169 INFO L225 Difference]: With dead ends: 187 [2021-11-12 22:29:17,169 INFO L226 Difference]: Without dead ends: 97 [2021-11-12 22:29:17,171 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-11-12 22:29:17,172 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 22 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 312.70ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 1008 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.17ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 16 IncrementalHoareTripleChecker+Unchecked, 326.37ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:17,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 1008 Invalid, 80 Unknown, 0 Unchecked, 3.17ms Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 16 Unchecked, 326.37ms Time] [2021-11-12 22:29:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2021-11-12 22:29:17,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2021-11-12 22:29:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 86 states have (on average 1.4186046511627908) internal successors, (122), 86 states have internal predecessors, (122), 7 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-12 22:29:17,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2021-11-12 22:29:17,182 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 28 [2021-11-12 22:29:17,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:17,182 INFO L470 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2021-11-12 22:29:17,182 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 8 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-12 22:29:17,182 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2021-11-12 22:29:17,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-12 22:29:17,184 INFO L506 BasicCegarLoop]: Found error trace [2021-11-12 22:29:17,184 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-12 22:29:17,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:17,391 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:17,391 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-12 22:29:17,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-12 22:29:17,392 INFO L85 PathProgramCache]: Analyzing trace with hash -292369321, now seen corresponding path program 1 times [2021-11-12 22:29:17,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-12 22:29:17,392 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1402467673] [2021-11-12 22:29:17,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-12 22:29:17,392 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-12 22:29:17,393 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat [2021-11-12 22:29:17,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-12 22:29:17,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-12 22:29:18,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-12 22:29:18,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-12 22:29:18,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-12 22:29:19,206 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-12 22:29:19,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-12 22:29:20,191 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-12 22:29:20,191 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-12 22:29:20,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1402467673] [2021-11-12 22:29:20,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1402467673] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-12 22:29:20,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-12 22:29:20,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 12 [2021-11-12 22:29:20,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141872658] [2021-11-12 22:29:20,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-12 22:29:20,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-12 22:29:20,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-12 22:29:20,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-12 22:29:20,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-11-12 22:29:20,193 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:29:20,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-12 22:29:20,855 INFO L93 Difference]: Finished difference Result 100 states and 138 transitions. [2021-11-12 22:29:20,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-12 22:29:20,856 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2021-11-12 22:29:20,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-12 22:29:20,856 INFO L225 Difference]: With dead ends: 100 [2021-11-12 22:29:20,856 INFO L226 Difference]: Without dead ends: 0 [2021-11-12 22:29:20,857 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 52 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-11-12 22:29:20,858 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 5 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 221.13ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.95ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 230.09ms IncrementalHoareTripleChecker+Time [2021-11-12 22:29:20,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 71 Invalid, 39 Unknown, 0 Unchecked, 0.95ms Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 5 Unchecked, 230.09ms Time] [2021-11-12 22:29:20,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-12 22:29:20,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-12 22:29:20,860 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) [2021-11-12 22:29:20,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-12 22:29:20,861 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-11-12 22:29:20,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-12 22:29:20,861 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-12 22:29:20,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.375) internal successors, (27), 7 states have internal predecessors, (27), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2021-11-12 22:29:20,862 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-12 22:29:20,862 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-12 22:29:20,864 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-12 22:29:20,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-12 22:29:21,068 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/mathsat -unsat_core_generation=3 [2021-11-12 22:29:21,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-12 22:29:21,748 INFO L858 garLoopResultBuilder]: For program point isnan_floatFINAL(line 15) no Hoare annotation was computed. [2021-11-12 22:29:21,748 INFO L861 garLoopResultBuilder]: At program point isnan_floatENTRY(line 15) the Hoare annotation is: true [2021-11-12 22:29:21,749 INFO L858 garLoopResultBuilder]: For program point isnan_floatEXIT(line 15) no Hoare annotation was computed. [2021-11-12 22:29:21,749 INFO L858 garLoopResultBuilder]: For program point fabs_floatFINAL(lines 17 30) no Hoare annotation was computed. [2021-11-12 22:29:21,749 INFO L858 garLoopResultBuilder]: For program point fabs_floatEXIT(lines 17 30) no Hoare annotation was computed. [2021-11-12 22:29:21,749 INFO L858 garLoopResultBuilder]: For program point L24(lines 24 28) no Hoare annotation was computed. [2021-11-12 22:29:21,751 INFO L858 garLoopResultBuilder]: For program point L24-1(lines 17 30) no Hoare annotation was computed. [2021-11-12 22:29:21,752 INFO L861 garLoopResultBuilder]: At program point fabs_floatENTRY(lines 17 30) the Hoare annotation is: true [2021-11-12 22:29:21,752 INFO L858 garLoopResultBuilder]: For program point L24-2(lines 24 28) no Hoare annotation was computed. [2021-11-12 22:29:21,752 INFO L858 garLoopResultBuilder]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2021-11-12 22:29:21,752 INFO L861 garLoopResultBuilder]: At program point L19-2(lines 19 23) the Hoare annotation is: true [2021-11-12 22:29:21,752 INFO L858 garLoopResultBuilder]: For program point L201-1(lines 201 205) no Hoare annotation was computed. [2021-11-12 22:29:21,752 INFO L854 garLoopResultBuilder]: At program point L201-2(lines 201 205) the Hoare annotation is: false [2021-11-12 22:29:21,758 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-12 22:29:21,758 INFO L858 garLoopResultBuilder]: For program point L152(line 152) no Hoare annotation was computed. [2021-11-12 22:29:21,759 INFO L854 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (let ((.cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_#res#1| |ULTIMATE.start___ieee754_atan2f_#res#1|))) (.cse1 (not (fp.eq |ULTIMATE.start_main_~res~0#1| |ULTIMATE.start_main_~res~0#1|)))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) .cse1) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) .cse0 .cse1))) [2021-11-12 22:29:21,759 INFO L858 garLoopResultBuilder]: For program point L235-1(lines 235 238) no Hoare annotation was computed. [2021-11-12 22:29:21,759 INFO L858 garLoopResultBuilder]: For program point L169(line 169) no Hoare annotation was computed. [2021-11-12 22:29:21,759 INFO L858 garLoopResultBuilder]: For program point L236(line 236) no Hoare annotation was computed. [2021-11-12 22:29:21,759 INFO L858 garLoopResultBuilder]: For program point L187(line 187) no Hoare annotation was computed. [2021-11-12 22:29:21,759 INFO L858 garLoopResultBuilder]: For program point L187-2(line 187) no Hoare annotation was computed. [2021-11-12 22:29:21,759 INFO L858 garLoopResultBuilder]: For program point L139(lines 139 140) no Hoare annotation was computed. [2021-11-12 22:29:21,759 INFO L854 garLoopResultBuilder]: At program point L123(lines 123 218) the Hoare annotation is: (let ((.cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_#res#1| |ULTIMATE.start___ieee754_atan2f_#res#1|)))) (or (and .cse0 (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|))) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) .cse0))) [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 210) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 182) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L206-1(lines 199 211) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L206-2(lines 206 210) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L190(lines 190 195) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L141(lines 141 142) no Hoare annotation was computed. [2021-11-12 22:29:21,760 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L158-2(line 158) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L861 garLoopResultBuilder]: At program point L241(lines 220 242) the Hoare annotation is: true [2021-11-12 22:29:21,761 INFO L854 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: false [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L142-1(line 142) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L192(lines 192 195) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L192-2(lines 190 195) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L160(lines 160 184) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L160-1(lines 123 218) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-11-12 22:29:21,761 INFO L854 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: (or (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|)) (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|)))) [2021-11-12 22:29:21,761 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-12 22:29:21,762 INFO L858 garLoopResultBuilder]: For program point L127-3(lines 127 131) no Hoare annotation was computed. [2021-11-12 22:29:21,762 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 183) no Hoare annotation was computed. [2021-11-12 22:29:21,762 INFO L858 garLoopResultBuilder]: For program point L178(line 178) no Hoare annotation was computed. [2021-11-12 22:29:21,762 INFO L858 garLoopResultBuilder]: For program point L145(lines 145 155) no Hoare annotation was computed. [2021-11-12 22:29:21,762 INFO L858 garLoopResultBuilder]: For program point L145-2(lines 123 218) no Hoare annotation was computed. [2021-11-12 22:29:21,763 INFO L854 garLoopResultBuilder]: At program point L195(line 195) the Hoare annotation is: false [2021-11-12 22:29:21,763 INFO L858 garLoopResultBuilder]: For program point L162(lines 162 171) no Hoare annotation was computed. [2021-11-12 22:29:21,763 INFO L854 garLoopResultBuilder]: At program point L195-1(line 195) the Hoare annotation is: false [2021-11-12 22:29:21,769 INFO L858 garLoopResultBuilder]: For program point L195-2(line 195) no Hoare annotation was computed. [2021-11-12 22:29:21,770 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 154) no Hoare annotation was computed. [2021-11-12 22:29:21,771 INFO L861 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: true [2021-11-12 22:29:21,772 INFO L858 garLoopResultBuilder]: For program point L229-1(line 229) no Hoare annotation was computed. [2021-11-12 22:29:21,772 INFO L858 garLoopResultBuilder]: For program point L196(lines 196 217) no Hoare annotation was computed. [2021-11-12 22:29:21,772 INFO L858 garLoopResultBuilder]: For program point L229-2(line 229) no Hoare annotation was computed. [2021-11-12 22:29:21,772 INFO L858 garLoopResultBuilder]: For program point L163(line 163) no Hoare annotation was computed. [2021-11-12 22:29:21,772 INFO L854 garLoopResultBuilder]: At program point L229-4(line 229) the Hoare annotation is: (let ((.cse0 (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (let ((.cse1 (not .cse0))) (and (or (and (not |ULTIMATE.start_main_#t~short46#1|) .cse0) (and |ULTIMATE.start_main_#t~short46#1| .cse1)) (or (and (= |ULTIMATE.start_main_#t~ret44#1| (_ bv1 32)) .cse1) (and (= |ULTIMATE.start_main_#t~ret44#1| (_ bv0 32)) .cse0))))) [2021-11-12 22:29:21,773 INFO L858 garLoopResultBuilder]: For program point L229-5(line 229) no Hoare annotation was computed. [2021-11-12 22:29:21,773 INFO L858 garLoopResultBuilder]: For program point L229-6(lines 229 239) no Hoare annotation was computed. [2021-11-12 22:29:21,773 INFO L858 garLoopResultBuilder]: For program point L229-8(lines 229 239) no Hoare annotation was computed. [2021-11-12 22:29:21,773 INFO L858 garLoopResultBuilder]: For program point L213(line 213) no Hoare annotation was computed. [2021-11-12 22:29:21,773 INFO L858 garLoopResultBuilder]: For program point L180(line 180) no Hoare annotation was computed. [2021-11-12 22:29:21,773 INFO L858 garLoopResultBuilder]: For program point L147(line 147) no Hoare annotation was computed. [2021-11-12 22:29:21,773 INFO L858 garLoopResultBuilder]: For program point L147-2(line 147) no Hoare annotation was computed. [2021-11-12 22:29:21,774 INFO L858 garLoopResultBuilder]: For program point L197(line 197) no Hoare annotation was computed. [2021-11-12 22:29:21,774 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-12 22:29:21,774 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 236) no Hoare annotation was computed. [2021-11-12 22:29:21,774 INFO L858 garLoopResultBuilder]: For program point L148(line 148) no Hoare annotation was computed. [2021-11-12 22:29:21,774 INFO L858 garLoopResultBuilder]: For program point L165(line 165) no Hoare annotation was computed. [2021-11-12 22:29:21,774 INFO L858 garLoopResultBuilder]: For program point L215(line 215) no Hoare annotation was computed. [2021-11-12 22:29:21,774 INFO L858 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-11-12 22:29:21,775 INFO L858 garLoopResultBuilder]: For program point L133-1(lines 133 137) no Hoare annotation was computed. [2021-11-12 22:29:21,775 INFO L854 garLoopResultBuilder]: At program point L133-2(lines 133 137) the Hoare annotation is: (or (and (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~x#1| |ULTIMATE.start___ieee754_atan2f_~x#1|)) (exists ((|ULTIMATE.start___ieee754_atan2f_~hx~1#1| (_ BitVec 32))) (and (= |ULTIMATE.start___ieee754_atan2f_~ix~2#1| (bvand (_ bv2147483647 32) |ULTIMATE.start___ieee754_atan2f_~hx~1#1|)) (not (let ((.cse0 (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|)))) (fp.eq .cse0 .cse0))))) (not (let ((.cse1 (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|)))) (fp.eq .cse1 .cse1))) (not (fp.eq |ULTIMATE.start_main_~x~0#1| |ULTIMATE.start_main_~x~0#1|))) (not (fp.eq |ULTIMATE.start___ieee754_atan2f_~y#1| |ULTIMATE.start___ieee754_atan2f_~y#1|))) [2021-11-12 22:29:21,775 INFO L858 garLoopResultBuilder]: For program point L133-3(lines 133 137) no Hoare annotation was computed. [2021-11-12 22:29:21,775 INFO L858 garLoopResultBuilder]: For program point L150(line 150) no Hoare annotation was computed. [2021-11-12 22:29:21,775 INFO L858 garLoopResultBuilder]: For program point L167(line 167) no Hoare annotation was computed. [2021-11-12 22:29:21,775 INFO L861 garLoopResultBuilder]: At program point atan_floatENTRY(lines 56 118) the Hoare annotation is: true [2021-11-12 22:29:21,776 INFO L858 garLoopResultBuilder]: For program point atan_floatFINAL(lines 56 118) no Hoare annotation was computed. [2021-11-12 22:29:21,776 INFO L858 garLoopResultBuilder]: For program point L60-1(lines 60 64) no Hoare annotation was computed. [2021-11-12 22:29:21,776 INFO L861 garLoopResultBuilder]: At program point L60-2(lines 60 64) the Hoare annotation is: true [2021-11-12 22:29:21,776 INFO L858 garLoopResultBuilder]: For program point L60-3(lines 60 64) no Hoare annotation was computed. [2021-11-12 22:29:21,776 INFO L861 garLoopResultBuilder]: At program point L81(line 81) the Hoare annotation is: true [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L81-1(line 81) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L69(lines 69 72) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L82(lines 82 98) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L74(lines 74 99) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 73) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L91(lines 91 97) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L91-2(lines 74 99) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L116(line 116) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L83(lines 83 89) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L116-2(line 116) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L112(lines 112 117) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 78) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L75-2(lines 75 78) no Hoare annotation was computed. [2021-11-12 22:29:21,777 INFO L858 garLoopResultBuilder]: For program point L67(lines 67 68) no Hoare annotation was computed. [2021-11-12 22:29:21,778 INFO L858 garLoopResultBuilder]: For program point atan_floatEXIT(lines 56 118) no Hoare annotation was computed. [2021-11-12 22:29:21,778 INFO L858 garLoopResultBuilder]: For program point L76(lines 76 77) no Hoare annotation was computed. [2021-11-12 22:29:21,780 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2021-11-12 22:29:21,781 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-12 22:29:21,797 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,798 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,799 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,801 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,802 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 10:29:21 BoogieIcfgContainer [2021-11-12 22:29:21,803 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-12 22:29:21,804 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-12 22:29:21,804 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-12 22:29:21,804 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-12 22:29:21,805 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 10:28:09" (3/4) ... [2021-11-12 22:29:21,822 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-12 22:29:21,840 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2021-11-12 22:29:21,840 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2021-11-12 22:29:21,840 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2021-11-12 22:29:21,849 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2021-11-12 22:29:21,850 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-11-12 22:29:21,850 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-11-12 22:29:21,851 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-12 22:29:21,874 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && !~fp.eq~FLOAT(x, x)) || !~fp.eq~FLOAT(y, y) [2021-11-12 22:29:21,875 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(y, y)) || (!~fp.eq~FLOAT(x, x) && !~fp.eq~FLOAT(\result, \result)) [2021-11-12 22:29:21,918 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/witness.graphml [2021-11-12 22:29:21,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-12 22:29:21,919 INFO L158 Benchmark]: Toolchain (without parser) took 87170.73ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 38.5MB in the beginning and 41.8MB in the end (delta: -3.4MB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-11-12 22:29:21,919 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-12 22:29:21,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 553.66ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 36.4MB in the end (delta: 1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-12 22:29:21,920 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.16ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 34.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:29:21,920 INFO L158 Benchmark]: Boogie Preprocessor took 97.27ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 31.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-12 22:29:21,921 INFO L158 Benchmark]: RCFGBuilder took 14045.67ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 31.2MB in the beginning and 36.0MB in the end (delta: -4.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. [2021-11-12 22:29:21,921 INFO L158 Benchmark]: TraceAbstraction took 72269.71ms. Allocated memory is still 75.5MB. Free memory was 35.4MB in the beginning and 49.6MB in the end (delta: -14.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2021-11-12 22:29:21,921 INFO L158 Benchmark]: Witness Printer took 114.07ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 41.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-12 22:29:21,923 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 58.7MB. Free memory is still 40.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 553.66ms. Allocated memory is still 58.7MB. Free memory was 38.2MB in the beginning and 36.4MB in the end (delta: 1.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.16ms. Allocated memory is still 58.7MB. Free memory was 36.4MB in the beginning and 34.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 97.27ms. Allocated memory is still 58.7MB. Free memory was 34.0MB in the beginning and 31.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 14045.67ms. Allocated memory was 58.7MB in the beginning and 75.5MB in the end (delta: 16.8MB). Free memory was 31.2MB in the beginning and 36.0MB in the end (delta: -4.8MB). Peak memory consumption was 15.2MB. Max. memory is 16.1GB. * TraceAbstraction took 72269.71ms. Allocated memory is still 75.5MB. Free memory was 35.4MB in the beginning and 49.6MB in the end (delta: -14.2MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. * Witness Printer took 114.07ms. Allocated memory is still 75.5MB. Free memory was 49.6MB in the beginning and 41.8MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] * 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: 236]: 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 4 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 72.2s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 194 SdHoareTripleChecker+Valid, 7393.43ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 4247 SdHoareTripleChecker+Invalid, 7130.82ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 21 IncrementalHoareTripleChecker+Unchecked, 3617 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 361 IncrementalHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 630 mSDtfsCounter, 361 mSolverCounterSat, 24.39ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 371 GetRequests, 271 SyntacticMatches, 12 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 14 DeprecatedPredicates, 752 ImplicationChecksByTransitivity, 34.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred in iteration=3, InterpolantAutomatonStates: 38, 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, 5 MinimizatonAttempts, 93 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 48 PreInvPairs, 57 NumberOfFragments, 155 HoareAnnotationTreeSize, 48 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 12.1s SatisfiabilityAnalysisTime, 44.8s InterpolantComputationTime, 184 NumberOfCodeBlocks, 184 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 354 ConstructedInterpolants, 32 QuantifiedInterpolants, 1897 SizeOfPredicates, 71 NumberOfNonLiveVariables, 912 ConjunctsInSsa, 97 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 57/78 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: 201]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(y, y) || (!~fp.eq~FLOAT(x, x) && !~fp.eq~FLOAT(x, x)) - InvariantResult [Line: 220]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: (!~fp.eq~FLOAT(\result, \result) && !~fp.eq~FLOAT(y, y)) || (!~fp.eq~FLOAT(x, x) && !~fp.eq~FLOAT(\result, \result)) - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 133]: Loop Invariant [2021-11-12 22:29:21,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,935 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,936 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,936 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,936 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] [2021-11-12 22:29:21,937 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_atan2f_~hx~1#1,QUANTIFIED] Derived loop invariant: (((!~fp.eq~FLOAT(x, x) && (\exists ULTIMATE.start___ieee754_atan2f_~hx~1#1 : bv32 :: ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_atan2f_~hx~1#1) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0]), ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_atan2f_~hx~1#1[31:31], ULTIMATE.start___ieee754_atan2f_~hx~1#1[30:23], ULTIMATE.start___ieee754_atan2f_~hx~1#1[22:0])))) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]))) && !~fp.eq~FLOAT(x, x)) || !~fp.eq~FLOAT(y, y) - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-12 22:29:22,141 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-11-12 22:29:22,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f2cc321d-b9ca-482c-8fb5-c8b5a45c5827/bin/utaipan-vmNK8stdcF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE