./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs --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 db1a0648fa242e1728c1c06c3b545dcc4e795062 ..................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs --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 db1a0648fa242e1728c1c06c3b545dcc4e795062 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:46:38,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:46:38,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:46:38,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:46:38,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:46:38,231 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:46:38,233 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:46:38,236 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:46:38,239 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:46:38,240 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:46:38,242 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:46:38,244 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:46:38,244 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:46:38,246 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:46:38,248 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:46:38,250 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:46:38,252 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:46:38,253 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:46:38,256 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:46:38,259 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:46:38,262 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:46:38,264 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:46:38,266 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:46:38,267 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:46:38,272 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:46:38,273 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:46:38,274 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:46:38,275 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:46:38,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:46:38,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:46:38,289 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:46:38,291 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:46:38,293 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:46:38,295 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:46:38,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:46:38,298 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:46:38,299 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:46:38,299 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:46:38,300 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:46:38,301 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:46:38,302 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:46:38,303 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-16 02:46:38,368 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:46:38,369 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:46:38,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:46:38,371 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:46:38,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:46:38,372 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:46:38,372 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-16 02:46:38,372 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:46:38,380 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:46:38,381 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-16 02:46:38,382 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-16 02:46:38,383 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:46:38,383 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-16 02:46:38,383 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-16 02:46:38,384 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-16 02:46:38,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:46:38,385 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:46:38,385 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 02:46:38,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:46:38,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:46:38,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:46:38,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:46:38,387 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:46:38,387 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:46:38,387 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:46:38,388 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:46:38,388 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:46:38,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:46:38,389 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:46:38,391 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:46:38,391 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:38,392 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:46:38,392 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:46:38,392 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:46:38,393 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-16 02:46:38,393 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 02:46:38,393 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:46:38,394 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:46:38,394 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:46:38,394 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_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2021-10-16 02:46:38,742 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:46:38,772 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:46:38,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:46:38,778 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:46:38,779 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:46:38,780 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-16 02:46:38,854 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/555d168b3/63bf32e2e7f14a1180877bf1c0bdc7fb/FLAGb9f2bda4a [2021-10-16 02:46:39,433 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:46:39,434 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-16 02:46:39,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/555d168b3/63bf32e2e7f14a1180877bf1c0bdc7fb/FLAGb9f2bda4a [2021-10-16 02:46:39,745 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/555d168b3/63bf32e2e7f14a1180877bf1c0bdc7fb [2021-10-16 02:46:39,748 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:46:39,750 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:46:39,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:39,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:46:39,757 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:46:39,758 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:39" (1/1) ... [2021-10-16 02:46:39,760 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b2d8dc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:39, skipping insertion in model container [2021-10-16 02:46:39,760 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:39" (1/1) ... [2021-10-16 02:46:39,769 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:46:39,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:46:40,092 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_3cc56366-989a-4844-b243-de14d1de7875/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-16 02:46:40,102 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:40,115 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:46:40,236 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_3cc56366-989a-4844-b243-de14d1de7875/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-16 02:46:40,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:40,265 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:46:40,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40 WrapperNode [2021-10-16 02:46:40,267 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:40,270 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:40,270 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:46:40,270 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:46:40,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,313 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:40,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:46:40,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:46:40,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:46:40,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,372 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,372 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,393 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:46:40,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:46:40,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:46:40,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:46:40,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (1/1) ... [2021-10-16 02:46:40,437 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:40,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:40,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:46:40,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:46:40,540 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 02:46:40,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:46:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-16 02:46:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 02:46:40,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-16 02:46:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:46:40,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:46:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 02:46:40,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:46:41,484 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:46:41,485 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-16 02:46:41,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:41 BoogieIcfgContainer [2021-10-16 02:46:41,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:46:41,491 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:46:41,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:46:41,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:46:41,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:46:39" (1/3) ... [2021-10-16 02:46:41,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68867541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:41, skipping insertion in model container [2021-10-16 02:46:41,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:40" (2/3) ... [2021-10-16 02:46:41,499 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68867541 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:41, skipping insertion in model container [2021-10-16 02:46:41,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:41" (3/3) ... [2021-10-16 02:46:41,501 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-10-16 02:46:41,508 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:46:41,509 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:46:41,590 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:46:41,599 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, mConcurrency=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 [2021-10-16 02:46:41,599 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:46:41,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 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) [2021-10-16 02:46:41,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-16 02:46:41,626 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:41,627 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:41,628 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:41,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:41,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1760934509, now seen corresponding path program 1 times [2021-10-16 02:46:41,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:46:41,647 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749112973] [2021-10-16 02:46:41,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:41,649 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:46:41,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:46:41,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:46:41,828 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-16 02:46:41,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749112973] [2021-10-16 02:46:41,829 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749112973] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 02:46:41,830 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:46:41,830 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 02:46:41,832 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326980388] [2021-10-16 02:46:41,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:46:41,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-16 02:46:41,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:46:41,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:46:41,872 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:46:41,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:46:41,940 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2021-10-16 02:46:41,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:46:41,944 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-10-16 02:46:41,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:46:41,957 INFO L225 Difference]: With dead ends: 91 [2021-10-16 02:46:41,958 INFO L226 Difference]: Without dead ends: 44 [2021-10-16 02:46:41,962 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:46:41,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-10-16 02:46:42,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2021-10-16 02:46:42,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 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) [2021-10-16 02:46:42,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2021-10-16 02:46:42,016 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2021-10-16 02:46:42,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:46:42,017 INFO L470 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2021-10-16 02:46:42,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:46:42,017 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2021-10-16 02:46:42,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:46:42,020 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:42,020 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:42,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 02:46:42,024 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:42,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:42,025 INFO L82 PathProgramCache]: Analyzing trace with hash -971347180, now seen corresponding path program 1 times [2021-10-16 02:46:42,026 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-16 02:46:42,026 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873844614] [2021-10-16 02:46:42,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:42,027 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 02:46:42,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:46:42,083 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-16 02:46:42,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-16 02:46:42,177 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-16 02:46:42,178 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-16 02:46:42,180 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:46:42,183 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 02:46:42,191 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:46:42,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:46:42 BoogieIcfgContainer [2021-10-16 02:46:42,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:46:42,252 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:46:42,252 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:46:42,252 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:46:42,253 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:41" (3/4) ... [2021-10-16 02:46:42,256 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-16 02:46:42,256 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:46:42,259 INFO L168 Benchmark]: Toolchain (without parser) took 2507.73 ms. Allocated memory is still 123.7 MB. Free memory was 85.3 MB in the beginning and 86.1 MB in the end (delta: -807.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:42,259 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 123.7 MB. Free memory is still 101.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:42,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 515.26 ms. Allocated memory is still 123.7 MB. Free memory was 85.2 MB in the beginning and 94.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:42,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.67 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 92.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:42,262 INFO L168 Benchmark]: Boogie Preprocessor took 48.07 ms. Allocated memory is still 123.7 MB. Free memory was 92.6 MB in the beginning and 90.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:42,263 INFO L168 Benchmark]: RCFGBuilder took 1084.34 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 67.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:46:42,264 INFO L168 Benchmark]: TraceAbstraction took 760.61 ms. Allocated memory is still 123.7 MB. Free memory was 66.3 MB in the beginning and 86.8 MB in the end (delta: -20.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:42,265 INFO L168 Benchmark]: Witness Printer took 4.65 ms. Allocated memory is still 123.7 MB. Free memory was 86.8 MB in the beginning and 86.1 MB in the end (delta: 677.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:46:42,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 123.7 MB. Free memory is still 101.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 515.26 ms. Allocated memory is still 123.7 MB. Free memory was 85.2 MB in the beginning and 94.7 MB in the end (delta: -9.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.67 ms. Allocated memory is still 123.7 MB. Free memory was 94.7 MB in the beginning and 92.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.07 ms. Allocated memory is still 123.7 MB. Free memory was 92.6 MB in the beginning and 90.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1084.34 ms. Allocated memory is still 123.7 MB. Free memory was 90.5 MB in the beginning and 67.0 MB in the end (delta: 23.6 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 760.61 ms. Allocated memory is still 123.7 MB. Free memory was 66.3 MB in the beginning and 86.8 MB in the end (delta: -20.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.65 ms. Allocated memory is still 123.7 MB. Free memory was 86.8 MB in the beginning and 86.1 MB in the end (delta: 677.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 200]: 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 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = -0.0f; [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L196] float res = __ieee754_asinf(x); [L199] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L199] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 601.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 14.8ms, AutomataDifference: 115.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 58 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 34.8ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 12.5ms SsaConstructionTime, 85.2ms SatisfiabilityAnalysisTime, 63.7ms InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-16 02:46:42,335 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-5709675 [2021-10-16 02:46:45,410 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 02:46:45,414 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 02:46:45,485 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 02:46:45,486 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 02:46:45,492 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 02:46:45,494 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 02:46:45,501 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 02:46:45,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 02:46:45,511 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 02:46:45,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 02:46:45,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 02:46:45,515 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 02:46:45,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 02:46:45,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 02:46:45,521 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 02:46:45,523 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 02:46:45,524 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 02:46:45,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 02:46:45,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 02:46:45,533 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 02:46:45,535 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 02:46:45,537 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 02:46:45,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 02:46:45,544 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 02:46:45,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 02:46:45,545 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 02:46:45,547 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 02:46:45,548 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 02:46:45,550 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 02:46:45,550 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 02:46:45,552 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 02:46:45,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 02:46:45,557 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 02:46:45,559 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 02:46:45,560 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 02:46:45,565 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 02:46:45,566 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 02:46:45,567 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 02:46:45,569 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 02:46:45,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 02:46:45,572 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-16 02:46:45,629 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 02:46:45,630 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 02:46:45,632 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-16 02:46:45,632 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-16 02:46:45,632 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-16 02:46:45,633 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-16 02:46:45,633 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-16 02:46:45,633 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-16 02:46:45,634 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-16 02:46:45,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 02:46:45,640 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 02:46:45,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 02:46:45,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 02:46:45,641 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 02:46:45,641 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 02:46:45,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 02:46:45,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-16 02:46:45,642 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-16 02:46:45,642 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-16 02:46:45,642 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 02:46:45,643 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 02:46:45,643 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 02:46:45,643 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 02:46:45,644 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 02:46:45,644 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 02:46:45,644 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 02:46:45,644 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:45,645 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 02:46:45,645 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 02:46:45,645 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 02:46:45,646 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-16 02:46:45,646 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-16 02:46:45,646 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 02:46:45,647 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-16 02:46:45,647 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-16 02:46:45,647 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_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> db1a0648fa242e1728c1c06c3b545dcc4e795062 [2021-10-16 02:46:46,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 02:46:46,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 02:46:46,134 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 02:46:46,136 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 02:46:46,137 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 02:46:46,138 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/../../sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-16 02:46:46,230 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/7bfc91ba4/02bfaec2ccfb480497d7618f37cda6ce/FLAG665199beb [2021-10-16 02:46:46,927 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 02:46:46,928 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c [2021-10-16 02:46:46,938 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/7bfc91ba4/02bfaec2ccfb480497d7618f37cda6ce/FLAG665199beb [2021-10-16 02:46:47,262 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/data/7bfc91ba4/02bfaec2ccfb480497d7618f37cda6ce [2021-10-16 02:46:47,265 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 02:46:47,267 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 02:46:47,270 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:47,270 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 02:46:47,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 02:46:47,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:47,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ed90a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47, skipping insertion in model container [2021-10-16 02:46:47,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:47,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 02:46:47,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 02:46:47,715 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_3cc56366-989a-4844-b243-de14d1de7875/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-16 02:46:47,719 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:47,742 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 02:46:47,892 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_3cc56366-989a-4844-b243-de14d1de7875/sv-benchmarks/c/float-newlib/float_req_bl_0270a.c[4702,4715] [2021-10-16 02:46:47,907 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 02:46:47,937 INFO L208 MainTranslator]: Completed translation [2021-10-16 02:46:47,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47 WrapperNode [2021-10-16 02:46:47,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 02:46:47,941 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:47,942 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 02:46:47,942 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 02:46:47,952 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:47,986 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 02:46:48,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 02:46:48,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 02:46:48,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 02:46:48,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,098 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,099 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,137 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 02:46:48,184 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 02:46:48,184 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 02:46:48,184 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 02:46:48,185 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (1/1) ... [2021-10-16 02:46:48,194 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 02:46:48,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 [2021-10-16 02:46:48,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 02:46:48,245 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 02:46:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-16 02:46:48,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 02:46:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-16 02:46:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-16 02:46:48,289 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 02:46:48,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 02:46:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-16 02:46:48,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-16 02:46:48,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 02:46:59,040 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 02:46:59,040 INFO L299 CfgBuilder]: Removed 30 assume(true) statements. [2021-10-16 02:46:59,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:59 BoogieIcfgContainer [2021-10-16 02:46:59,044 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 02:46:59,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 02:46:59,055 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 02:46:59,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 02:46:59,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:46:47" (1/3) ... [2021-10-16 02:46:59,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48042978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:59, skipping insertion in model container [2021-10-16 02:46:59,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:46:47" (2/3) ... [2021-10-16 02:46:59,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48042978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:46:59, skipping insertion in model container [2021-10-16 02:46:59,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:59" (3/3) ... [2021-10-16 02:46:59,071 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270a.c [2021-10-16 02:46:59,078 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 02:46:59,095 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-16 02:46:59,213 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-16 02:46:59,221 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, mConcurrency=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 [2021-10-16 02:46:59,222 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 02:46:59,242 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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) [2021-10-16 02:46:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-16 02:46:59,249 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:46:59,250 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:46:59,251 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:46:59,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:46:59,259 INFO L82 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2021-10-16 02:46:59,279 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:46:59,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [326725849] [2021-10-16 02:46:59,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:46:59,281 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:46:59,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:46:59,286 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:46:59,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-16 02:47:00,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:00,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-16 02:47:00,414 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:00,528 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:00,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:00,624 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:00,625 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [326725849] [2021-10-16 02:47:00,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [326725849] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:00,626 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:00,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-16 02:47:00,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329665793] [2021-10-16 02:47:00,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 02:47:00,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:00,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 02:47:00,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:47:00,655 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-16 02:47:00,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:00,699 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2021-10-16 02:47:00,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 02:47:00,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-10-16 02:47:00,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:00,716 INFO L225 Difference]: With dead ends: 118 [2021-10-16 02:47:00,716 INFO L226 Difference]: Without dead ends: 57 [2021-10-16 02:47:00,721 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 02:47:00,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-16 02:47:00,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-16 02:47:00,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 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) [2021-10-16 02:47:00,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2021-10-16 02:47:00,790 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2021-10-16 02:47:00,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:00,791 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2021-10-16 02:47:00,791 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 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) [2021-10-16 02:47:00,792 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2021-10-16 02:47:00,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-16 02:47:00,793 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:00,793 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:00,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:01,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:01,019 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:47:01,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:01,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2021-10-16 02:47:01,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:01,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602839031] [2021-10-16 02:47:01,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:01,023 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:01,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:01,034 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:01,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-16 02:47:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:01,836 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-16 02:47:01,838 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:02,274 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:02,274 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:02,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:02,853 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:02,853 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602839031] [2021-10-16 02:47:02,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602839031] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:02,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:02,855 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-10-16 02:47:02,855 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651073514] [2021-10-16 02:47:02,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-16 02:47:02,857 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-16 02:47:02,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-10-16 02:47:02,860 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:47:04,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:04,477 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2021-10-16 02:47:04,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 02:47:04,478 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-16 02:47:04,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:04,480 INFO L225 Difference]: With dead ends: 104 [2021-10-16 02:47:04,481 INFO L226 Difference]: Without dead ends: 57 [2021-10-16 02:47:04,482 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 690.8ms TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:47:04,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-16 02:47:04,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-16 02:47:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 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) [2021-10-16 02:47:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2021-10-16 02:47:04,496 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2021-10-16 02:47:04,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:04,496 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2021-10-16 02:47:04,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:47:04,497 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2021-10-16 02:47:04,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-16 02:47:04,498 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:04,498 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:04,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:04,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:04,723 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:47:04,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:04,724 INFO L82 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2021-10-16 02:47:04,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:04,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [408368865] [2021-10-16 02:47:04,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:04,726 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:04,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:04,730 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:04,773 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-16 02:47:05,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:05,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:47:05,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:05,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:05,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:06,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:06,281 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:06,282 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [408368865] [2021-10-16 02:47:06,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [408368865] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:06,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:06,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-10-16 02:47:06,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856669108] [2021-10-16 02:47:06,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-16 02:47:06,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:06,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-16 02:47:06,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-16 02:47:06,285 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:47:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:06,976 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2021-10-16 02:47:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 02:47:06,978 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-10-16 02:47:06,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:06,980 INFO L225 Difference]: With dead ends: 69 [2021-10-16 02:47:06,980 INFO L226 Difference]: Without dead ends: 66 [2021-10-16 02:47:06,981 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 599.8ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-10-16 02:47:06,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-10-16 02:47:06,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2021-10-16 02:47:06,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 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) [2021-10-16 02:47:06,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2021-10-16 02:47:06,997 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2021-10-16 02:47:06,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:06,997 INFO L470 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2021-10-16 02:47:06,998 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 02:47:06,998 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2021-10-16 02:47:06,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-16 02:47:06,999 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:06,999 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:07,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:07,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:07,215 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:47:07,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:07,216 INFO L82 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2021-10-16 02:47:07,217 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:07,217 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1217275109] [2021-10-16 02:47:07,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:07,218 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:07,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:07,224 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:07,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-16 02:47:07,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:07,939 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-16 02:47:07,941 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:09,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:09,124 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:11,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:11,040 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:11,040 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1217275109] [2021-10-16 02:47:11,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1217275109] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:11,041 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:11,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-10-16 02:47:11,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839289032] [2021-10-16 02:47:11,043 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-16 02:47:11,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:11,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-16 02:47:11,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-10-16 02:47:11,045 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2021-10-16 02:47:12,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:12,868 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2021-10-16 02:47:12,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-16 02:47:12,870 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2021-10-16 02:47:12,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:12,871 INFO L225 Difference]: With dead ends: 66 [2021-10-16 02:47:12,871 INFO L226 Difference]: Without dead ends: 57 [2021-10-16 02:47:12,872 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2617.1ms TimeCoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2021-10-16 02:47:12,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2021-10-16 02:47:12,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2021-10-16 02:47:12,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 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) [2021-10-16 02:47:12,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2021-10-16 02:47:12,883 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2021-10-16 02:47:12,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:12,884 INFO L470 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2021-10-16 02:47:12,884 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 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) [2021-10-16 02:47:12,884 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2021-10-16 02:47:12,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-16 02:47:12,886 INFO L504 BasicCegarLoop]: Found error trace [2021-10-16 02:47:12,886 INFO L512 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1] [2021-10-16 02:47:12,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:13,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:13,110 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 02:47:13,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 02:47:13,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2021-10-16 02:47:13,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-16 02:47:13,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [460568748] [2021-10-16 02:47:13,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 02:47:13,111 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-16 02:47:13,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat [2021-10-16 02:47:13,112 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-16 02:47:13,114 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-10-16 02:47:15,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 02:47:15,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-16 02:47:15,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-16 02:47:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:16,891 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-16 02:47:19,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 02:47:19,655 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-16 02:47:19,656 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [460568748] [2021-10-16 02:47:19,656 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [460568748] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-16 02:47:19,656 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-16 02:47:19,657 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-10-16 02:47:19,657 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221838319] [2021-10-16 02:47:19,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-16 02:47:19,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-16 02:47:19,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-16 02:47:19,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:19,660 INFO L87 Difference]: Start difference. First operand 57 states and 68 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-10-16 02:47:19,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-16 02:47:19,797 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2021-10-16 02:47:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 02:47:19,798 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 33 [2021-10-16 02:47:19,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-16 02:47:19,799 INFO L225 Difference]: With dead ends: 57 [2021-10-16 02:47:19,799 INFO L226 Difference]: Without dead ends: 0 [2021-10-16 02:47:19,800 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1196.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-16 02:47:19,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-16 02:47:19,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-16 02:47:19,800 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) [2021-10-16 02:47:19,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-16 02:47:19,801 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2021-10-16 02:47:19,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-16 02:47:19,801 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-16 02:47:19,801 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 5 states have internal predecessors, (43), 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) [2021-10-16 02:47:19,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-16 02:47:19,802 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-16 02:47:19,804 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 02:47:19,849 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-10-16 02:47:20,007 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/mathsat -unsat_core_generation=3 [2021-10-16 02:47:20,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-16 02:47:20,013 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,057 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,058 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,059 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,068 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,069 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,118 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,147 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-16 02:47:20,812 INFO L853 garLoopResultBuilder]: At program point L184(lines 119 185) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))))) [2021-10-16 02:47:20,812 INFO L857 garLoopResultBuilder]: For program point L135(lines 135 136) no Hoare annotation was computed. [2021-10-16 02:47:20,813 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-16 02:47:20,813 INFO L857 garLoopResultBuilder]: For program point L87-1(lines 87 91) no Hoare annotation was computed. [2021-10-16 02:47:20,813 INFO L853 garLoopResultBuilder]: At program point L87-2(lines 87 91) the Hoare annotation is: false [2021-10-16 02:47:20,813 INFO L857 garLoopResultBuilder]: For program point L87-3(lines 87 91) no Hoare annotation was computed. [2021-10-16 02:47:20,813 INFO L857 garLoopResultBuilder]: For program point L170(lines 170 174) no Hoare annotation was computed. [2021-10-16 02:47:20,814 INFO L857 garLoopResultBuilder]: For program point L170-1(lines 162 180) no Hoare annotation was computed. [2021-10-16 02:47:20,814 INFO L857 garLoopResultBuilder]: For program point L170-2(lines 170 174) no Hoare annotation was computed. [2021-10-16 02:47:20,814 INFO L860 garLoopResultBuilder]: At program point L204(lines 187 205) the Hoare annotation is: true [2021-10-16 02:47:20,814 INFO L857 garLoopResultBuilder]: For program point L122-1(lines 122 126) no Hoare annotation was computed. [2021-10-16 02:47:20,815 INFO L853 garLoopResultBuilder]: At program point L122-2(lines 122 126) the Hoare annotation is: (and (= ~huge_asin~0 ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1000000000000000000000000000000.0))) (= ULTIMATE.start___ieee754_asinf_~x (fp.neg (_ +zero 8 24))) (= ((_ to_fp 8 24) currentRoundingMode ((_ to_fp 11 53) currentRoundingMode 1.0)) ~one_asin~0) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-16 02:47:20,815 INFO L857 garLoopResultBuilder]: For program point L56(lines 56 57) no Hoare annotation was computed. [2021-10-16 02:47:20,815 INFO L857 garLoopResultBuilder]: For program point L122-3(lines 122 126) no Hoare annotation was computed. [2021-10-16 02:47:20,815 INFO L853 garLoopResultBuilder]: At program point L23(lines 14 24) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= |ULTIMATE.start___signbit_float_#res| (_ bv1 32)) (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-10-16 02:47:20,815 INFO L857 garLoopResultBuilder]: For program point L56-2(lines 56 57) no Hoare annotation was computed. [2021-10-16 02:47:20,815 INFO L853 garLoopResultBuilder]: At program point L106(lines 94 107) the Hoare annotation is: false [2021-10-16 02:47:20,816 INFO L857 garLoopResultBuilder]: For program point L40(lines 40 41) no Hoare annotation was computed. [2021-10-16 02:47:20,816 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-16 02:47:20,816 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 84) no Hoare annotation was computed. [2021-10-16 02:47:20,816 INFO L853 garLoopResultBuilder]: At program point L92(lines 28 93) the Hoare annotation is: false [2021-10-16 02:47:20,816 INFO L857 garLoopResultBuilder]: For program point L43(lines 43 44) no Hoare annotation was computed. [2021-10-16 02:47:20,816 INFO L857 garLoopResultBuilder]: For program point L159(lines 159 180) no Hoare annotation was computed. [2021-10-16 02:47:20,817 INFO L857 garLoopResultBuilder]: For program point L159-2(lines 119 185) no Hoare annotation was computed. [2021-10-16 02:47:20,817 INFO L857 garLoopResultBuilder]: For program point L77(lines 77 83) no Hoare annotation was computed. [2021-10-16 02:47:20,817 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-16 02:47:20,817 INFO L857 garLoopResultBuilder]: For program point L45(lines 45 46) no Hoare annotation was computed. [2021-10-16 02:47:20,817 INFO L857 garLoopResultBuilder]: For program point L128(lines 128 148) no Hoare annotation was computed. [2021-10-16 02:47:20,818 INFO L857 garLoopResultBuilder]: For program point L79(lines 79 82) no Hoare annotation was computed. [2021-10-16 02:47:20,818 INFO L857 garLoopResultBuilder]: For program point L96-1(lines 96 100) no Hoare annotation was computed. [2021-10-16 02:47:20,818 INFO L853 garLoopResultBuilder]: At program point L96-2(lines 96 100) the Hoare annotation is: false [2021-10-16 02:47:20,818 INFO L853 garLoopResultBuilder]: At program point L64-2(lines 64 73) the Hoare annotation is: false [2021-10-16 02:47:20,818 INFO L857 garLoopResultBuilder]: For program point L64-3(lines 28 93) no Hoare annotation was computed. [2021-10-16 02:47:20,819 INFO L857 garLoopResultBuilder]: For program point L131(lines 131 148) no Hoare annotation was computed. [2021-10-16 02:47:20,819 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-16 02:47:20,819 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2021-10-16 02:47:20,819 INFO L857 garLoopResultBuilder]: For program point L49(lines 49 53) no Hoare annotation was computed. [2021-10-16 02:47:20,819 INFO L857 garLoopResultBuilder]: For program point L49-2(lines 49 53) no Hoare annotation was computed. [2021-10-16 02:47:20,820 INFO L857 garLoopResultBuilder]: For program point L165-1(lines 165 169) no Hoare annotation was computed. [2021-10-16 02:47:20,820 INFO L853 garLoopResultBuilder]: At program point L165-2(lines 165 169) the Hoare annotation is: false [2021-10-16 02:47:20,820 INFO L857 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-10-16 02:47:20,820 INFO L857 garLoopResultBuilder]: For program point L33-1(lines 33 37) no Hoare annotation was computed. [2021-10-16 02:47:20,820 INFO L857 garLoopResultBuilder]: For program point L66-2(lines 66 70) no Hoare annotation was computed. [2021-10-16 02:47:20,821 INFO L853 garLoopResultBuilder]: At program point L33-2(lines 33 37) the Hoare annotation is: false [2021-10-16 02:47:20,821 INFO L857 garLoopResultBuilder]: For program point L33-3(lines 33 37) no Hoare annotation was computed. [2021-10-16 02:47:20,821 INFO L857 garLoopResultBuilder]: For program point L50-2(lines 50 51) no Hoare annotation was computed. [2021-10-16 02:47:20,822 INFO L857 garLoopResultBuilder]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2021-10-16 02:47:20,822 INFO L853 garLoopResultBuilder]: At program point L50-3(lines 50 51) the Hoare annotation is: false [2021-10-16 02:47:20,822 INFO L853 garLoopResultBuilder]: At program point L17-2(lines 17 21) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short20| (= ULTIMATE.start___ieee754_asinf_~x .cse0) (= |ULTIMATE.start___ieee754_asinf_#res| .cse0) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) .cse0) (exists ((ULTIMATE.start___ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 30 23) ULTIMATE.start___ieee754_asinf_~hx~1) ((_ extract 22 0) ULTIMATE.start___ieee754_asinf_~hx~1)) (fp.neg (_ +zero 8 24))) (= ULTIMATE.start___ieee754_asinf_~ix~2 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_asinf_~hx~1)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-10-16 02:47:20,823 INFO L857 garLoopResultBuilder]: For program point L50-4(lines 50 51) no Hoare annotation was computed. [2021-10-16 02:47:20,823 INFO L857 garLoopResultBuilder]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2021-10-16 02:47:20,823 INFO L857 garLoopResultBuilder]: For program point L199(line 199) no Hoare annotation was computed. [2021-10-16 02:47:20,823 INFO L857 garLoopResultBuilder]: For program point L133(lines 133 148) no Hoare annotation was computed. [2021-10-16 02:47:20,823 INFO L857 garLoopResultBuilder]: For program point L199-2(lines 199 202) no Hoare annotation was computed. [2021-10-16 02:47:20,824 INFO L857 garLoopResultBuilder]: For program point L133-1(lines 133 148) no Hoare annotation was computed. [2021-10-16 02:47:20,824 INFO L857 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2021-10-16 02:47:20,824 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 147) no Hoare annotation was computed. [2021-10-16 02:47:20,824 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-10-16 02:47:20,824 INFO L857 garLoopResultBuilder]: For program point L101-1(lines 94 107) no Hoare annotation was computed. [2021-10-16 02:47:20,824 INFO L857 garLoopResultBuilder]: For program point L101-2(lines 101 105) no Hoare annotation was computed. [2021-10-16 02:47:20,830 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 02:47:20,843 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:47:20,848 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:47:20,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,851 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,852 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,853 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,854 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,855 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,856 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,857 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,858 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,859 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,860 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,861 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 02:47:20 BoogieIcfgContainer [2021-10-16 02:47:20,862 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 02:47:20,863 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 02:47:20,863 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 02:47:20,864 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 02:47:20,864 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:46:59" (3/4) ... [2021-10-16 02:47:20,868 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 02:47:20,884 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-10-16 02:47:20,885 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-10-16 02:47:20,885 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:47:20,886 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 02:47:20,918 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1)) [2021-10-16 02:47:20,919 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2021-10-16 02:47:20,920 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x [2021-10-16 02:47:20,954 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/witness.graphml [2021-10-16 02:47:20,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 02:47:20,957 INFO L168 Benchmark]: Toolchain (without parser) took 33688.62 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 32.1 MB in the beginning and 30.6 MB in the end (delta: 1.4 MB). Peak memory consumption was 13.7 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:20,957 INFO L168 Benchmark]: CDTParser took 0.39 ms. Allocated memory is still 54.5 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 02:47:20,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.53 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.8 MB in the beginning and 47.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:20,959 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.57 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 44.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:20,959 INFO L168 Benchmark]: Boogie Preprocessor took 125.07 ms. Allocated memory is still 67.1 MB. Free memory was 44.6 MB in the beginning and 42.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:20,960 INFO L168 Benchmark]: RCFGBuilder took 10860.71 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 40.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:20,961 INFO L168 Benchmark]: TraceAbstraction took 21815.94 ms. Allocated memory is still 67.1 MB. Free memory was 39.8 MB in the beginning and 36.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:20,961 INFO L168 Benchmark]: Witness Printer took 91.98 ms. Allocated memory is still 67.1 MB. Free memory was 36.2 MB in the beginning and 30.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-16 02:47:20,964 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39 ms. Allocated memory is still 54.5 MB. Free memory is still 35.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 669.53 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 31.8 MB in the beginning and 47.1 MB in the end (delta: -15.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 115.57 ms. Allocated memory is still 67.1 MB. Free memory was 47.1 MB in the beginning and 44.6 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 125.07 ms. Allocated memory is still 67.1 MB. Free memory was 44.6 MB in the beginning and 42.3 MB in the end (delta: 2.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 10860.71 ms. Allocated memory is still 67.1 MB. Free memory was 42.3 MB in the beginning and 40.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 21815.94 ms. Allocated memory is still 67.1 MB. Free memory was 39.8 MB in the beginning and 36.2 MB in the end (delta: 3.6 MB). Peak memory consumption was 14.6 MB. Max. memory is 16.1 GB. * Witness Printer took 91.98 ms. Allocated memory is still 67.1 MB. Free memory was 36.2 MB in the beginning and 30.6 MB in the end (delta: 5.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 200]: 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 1 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21619.2ms, OverallIterations: 5, TraceHistogramMax: 1, EmptinessCheckTime: 17.8ms, AutomataDifference: 4376.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 804.0ms, InitialAbstractionConstructionTime: 14.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 267 SDtfs, 512 SDslu, 799 SDs, 0 SdLazy, 127 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2568.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 169 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 5104.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=60occurred in iteration=0, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 90.9ms AutomataMinimizationTime, 5 MinimizatonAttempts, 7 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 13 LocationsWithAnnotation, 13 PreInvPairs, 18 NumberOfFragments, 170 HoareAnnotationTreeSize, 13 FomulaSimplifications, 88 FormulaSimplificationTreeSizeReduction, 143.4ms HoareSimplificationTime, 13 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 651.1ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 118.3ms SsaConstructionTime, 4991.1ms SatisfiabilityAnalysisTime, 9606.3ms InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 158 ConstructedInterpolants, 13 QuantifiedInterpolants, 762 SizeOfPredicates, 28 NumberOfNonLiveVariables, 377 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 122]: Loop Invariant [2021-10-16 02:47:20,978 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-16 02:47:20,979 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((huge_asin == ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0E30)) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, 1.0)) == one_asin) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 33]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 17]: Loop Invariant [2021-10-16 02:47:20,980 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,981 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,982 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,983 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 28]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 14]: Loop Invariant [2021-10-16 02:47:20,984 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,985 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,986 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,987 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,987 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == res && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == 1bv32) && x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1))) && ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 119]: Loop Invariant [2021-10-16 02:47:20,988 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,988 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,988 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,989 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,989 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,990 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,990 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] [2021-10-16 02:47:20,990 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((x == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && \result == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_asinf_~hx~1[31:31], ULTIMATE.start___ieee754_asinf_~hx~1[30:23], ULTIMATE.start___ieee754_asinf_~hx~1[22:0]) == ~fp.neg~DOUBLE(~Pluszero~LONGDOUBLE()) && ix == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_asinf_~hx~1)) - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2021-10-16 02:47:21,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3cc56366-989a-4844-b243-de14d1de7875/bin/utaipan-mTDlp9Zugs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...