./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE --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 fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 ................................................................................................................................................................................................................................................................................................................................................. 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_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE --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 fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 ....................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN --- Real Ultimate output --- This is Ultimate 0.2.1-dev-e943c26 [2021-10-24 11:14:06,296 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:14:06,299 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:14:06,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:14:06,354 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:14:06,359 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:14:06,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:14:06,365 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:14:06,369 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:14:06,375 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:14:06,376 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:14:06,378 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:14:06,378 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:14:06,381 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:14:06,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:14:06,391 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:14:06,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:14:06,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:14:06,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:14:06,405 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:14:06,407 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:14:06,408 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:14:06,412 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:14:06,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:14:06,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:14:06,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:14:06,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:14:06,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:14:06,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:14:06,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:14:06,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:14:06,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:14:06,430 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:14:06,431 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:14:06,433 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:14:06,433 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:14:06,434 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:14:06,434 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:14:06,435 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:14:06,436 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:14:06,436 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:14:06,437 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-24 11:14:06,477 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:14:06,478 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:14:06,479 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:14:06,479 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:14:06,480 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:14:06,480 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:14:06,480 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-24 11:14:06,481 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:14:06,481 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:14:06,481 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-24 11:14:06,488 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-24 11:14:06,488 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:14:06,489 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-24 11:14:06,489 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-24 11:14:06,489 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-24 11:14:06,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:14:06,490 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:14:06,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-24 11:14:06,491 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:14:06,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:14:06,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:14:06,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:14:06,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:14:06,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:14:06,492 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:14:06,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:14:06,493 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:14:06,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:14:06,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:14:06,495 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:14:06,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:14:06,496 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:14:06,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:14:06,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:14:06,497 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-24 11:14:06,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-24 11:14:06,497 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:14:06,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:14:06,497 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:14:06,498 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_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 [2021-10-24 11:14:06,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:14:06,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:14:06,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:14:06,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:14:06,851 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:14:06,852 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-24 11:14:06,926 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/6fa2e1286/a1a927ea1d9d4826b07be77d3e6788ab/FLAGec5cbf333 [2021-10-24 11:14:07,453 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:14:07,457 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-24 11:14:07,478 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/6fa2e1286/a1a927ea1d9d4826b07be77d3e6788ab/FLAGec5cbf333 [2021-10-24 11:14:07,797 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/6fa2e1286/a1a927ea1d9d4826b07be77d3e6788ab [2021-10-24 11:14:07,801 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:14:07,804 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:14:07,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:14:07,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:14:07,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:14:07,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:14:07" (1/1) ... [2021-10-24 11:14:07,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2cd19efc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:07, skipping insertion in model container [2021-10-24 11:14:07,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:14:07" (1/1) ... [2021-10-24 11:14:07,824 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:14:07,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:14:08,149 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_779fd89d-1e3b-4f38-baa9-1345de6f4729/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-24 11:14:08,152 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:14:08,161 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:14:08,215 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_779fd89d-1e3b-4f38-baa9-1345de6f4729/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-24 11:14:08,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:14:08,234 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:14:08,235 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08 WrapperNode [2021-10-24 11:14:08,235 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:14:08,236 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:14:08,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:14:08,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:14:08,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,258 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,324 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:14:08,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:14:08,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:14:08,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:14:08,350 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,351 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,358 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:14:08,419 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:14:08,419 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:14:08,419 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:14:08,434 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (1/1) ... [2021-10-24 11:14:08,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:14:08,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:14:08,467 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:14:08,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:14:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-24 11:14:08,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:14:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-24 11:14:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-24 11:14:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-24 11:14:08,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:14:08,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:14:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-24 11:14:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-10-24 11:14:08,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 11:14:09,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:14:09,578 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-24 11:14:09,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:14:09 BoogieIcfgContainer [2021-10-24 11:14:09,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:14:09,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:14:09,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:14:09,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:14:09,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:14:07" (1/3) ... [2021-10-24 11:14:09,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa26d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:14:09, skipping insertion in model container [2021-10-24 11:14:09,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:08" (2/3) ... [2021-10-24 11:14:09,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa26d61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:14:09, skipping insertion in model container [2021-10-24 11:14:09,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:14:09" (3/3) ... [2021-10-24 11:14:09,592 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2021-10-24 11:14:09,597 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:14:09,597 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:14:09,648 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:14:09,655 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:14:09,655 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 11:14:09,672 INFO L276 IsEmpty]: Start isEmpty. Operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 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) [2021-10-24 11:14:09,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-24 11:14:09,677 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:14:09,678 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:14:09,679 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:14:09,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:14:09,684 INFO L82 PathProgramCache]: Analyzing trace with hash 382235670, now seen corresponding path program 1 times [2021-10-24 11:14:09,693 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:14:09,693 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958934951] [2021-10-24 11:14:09,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:14:09,694 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:14:09,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:14:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:14:09,922 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-24 11:14:09,922 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958934951] [2021-10-24 11:14:09,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958934951] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-24 11:14:09,923 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:14:09,924 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-24 11:14:09,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398759174] [2021-10-24 11:14:09,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:14:09,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-24 11:14:09,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:14:09,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:14:09,947 INFO L87 Difference]: Start difference. First operand has 82 states, 80 states have (on average 1.75) internal successors, (140), 81 states have internal predecessors, (140), 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) [2021-10-24 11:14:09,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:14:09,972 INFO L93 Difference]: Finished difference Result 163 states and 279 transitions. [2021-10-24 11:14:09,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:14:09,974 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 [2021-10-24 11:14:09,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:14:09,987 INFO L225 Difference]: With dead ends: 163 [2021-10-24 11:14:09,987 INFO L226 Difference]: Without dead ends: 80 [2021-10-24 11:14:09,991 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 [2021-10-24 11:14:10,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2021-10-24 11:14:10,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2021-10-24 11:14:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.379746835443038) internal successors, (109), 79 states have internal predecessors, (109), 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) [2021-10-24 11:14:10,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 109 transitions. [2021-10-24 11:14:10,047 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 109 transitions. Word has length 9 [2021-10-24 11:14:10,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:14:10,048 INFO L470 AbstractCegarLoop]: Abstraction has 80 states and 109 transitions. [2021-10-24 11:14:10,048 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) [2021-10-24 11:14:10,048 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 109 transitions. [2021-10-24 11:14:10,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-24 11:14:10,049 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:14:10,050 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:14:10,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-24 11:14:10,050 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:14:10,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:14:10,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2045881791, now seen corresponding path program 1 times [2021-10-24 11:14:10,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-24 11:14:10,055 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857047274] [2021-10-24 11:14:10,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:14:10,056 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-24 11:14:10,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:14:10,159 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-24 11:14:10,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-24 11:14:10,278 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-24 11:14:10,279 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-24 11:14:10,281 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:14:10,284 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-24 11:14:10,290 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:14:10,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:14:10 BoogieIcfgContainer [2021-10-24 11:14:10,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:14:10,362 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:14:10,362 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:14:10,362 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:14:10,363 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:14:09" (3/4) ... [2021-10-24 11:14:10,368 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 11:14:10,368 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:14:10,370 INFO L168 Benchmark]: Toolchain (without parser) took 2565.17 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 66.7 MB in the beginning and 76.5 MB in the end (delta: -9.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 16.1 GB. [2021-10-24 11:14:10,371 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 74.7 MB in the beginning and 74.7 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:14:10,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 426.98 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 73.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-24 11:14:10,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.31 ms. Allocated memory is still 102.8 MB. Free memory was 73.2 MB in the beginning and 70.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:14:10,382 INFO L168 Benchmark]: Boogie Preprocessor took 76.76 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 66.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:14:10,383 INFO L168 Benchmark]: RCFGBuilder took 1162.37 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 66.8 MB in the beginning and 112.2 MB in the end (delta: -45.4 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. [2021-10-24 11:14:10,384 INFO L168 Benchmark]: TraceAbstraction took 777.86 ms. Allocated memory is still 144.7 MB. Free memory was 112.2 MB in the beginning and 77.4 MB in the end (delta: 34.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:14:10,385 INFO L168 Benchmark]: Witness Printer took 6.58 ms. Allocated memory is still 144.7 MB. Free memory was 77.4 MB in the beginning and 76.5 MB in the end (delta: 856.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:14:10,390 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 102.8 MB. Free memory was 74.7 MB in the beginning and 74.7 MB in the end (delta: 25.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 426.98 ms. Allocated memory is still 102.8 MB. Free memory was 66.7 MB in the beginning and 73.2 MB in the end (delta: -6.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.31 ms. Allocated memory is still 102.8 MB. Free memory was 73.2 MB in the beginning and 70.1 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 76.76 ms. Allocated memory is still 102.8 MB. Free memory was 70.0 MB in the beginning and 66.8 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1162.37 ms. Allocated memory was 102.8 MB in the beginning and 144.7 MB in the end (delta: 41.9 MB). Free memory was 66.8 MB in the beginning and 112.2 MB in the end (delta: -45.4 MB). Peak memory consumption was 42.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 777.86 ms. Allocated memory is still 144.7 MB. Free memory was 112.2 MB in the beginning and 77.4 MB in the end (delta: 34.8 MB). Peak memory consumption was 33.6 MB. Max. memory is 16.1 GB. * Witness Printer took 6.58 ms. Allocated memory is still 144.7 MB. Free memory was 77.4 MB in the beginning and 76.5 MB in the end (delta: 856.8 kB). Peak memory consumption was 2.1 MB. 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: 258]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryDOUBLEComparisonOperation at line 257. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L252] double x = 1.0 / 0.0; [L253] double y = 1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi_o_4 VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] reach_error() VAL [aT_atan={5:0}, atanhi_atan={10:0}, atanlo_atan={11:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 82 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 642.0ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 10.5ms, AutomataDifference: 59.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 12.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 111 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=82occurred 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: 40.5ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 22.2ms SsaConstructionTime, 149.6ms SatisfiabilityAnalysisTime, 85.3ms InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 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 [2021-10-24 11:14:10,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/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-e943c26 [2021-10-24 11:14:12,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-24 11:14:12,889 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-24 11:14:12,923 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-24 11:14:12,923 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-24 11:14:12,925 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-24 11:14:12,927 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-24 11:14:12,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-24 11:14:12,933 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-24 11:14:12,934 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-24 11:14:12,936 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-24 11:14:12,937 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-24 11:14:12,938 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-24 11:14:12,940 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-24 11:14:12,942 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-24 11:14:12,944 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-24 11:14:12,945 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-24 11:14:12,946 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-24 11:14:12,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-24 11:14:12,952 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-24 11:14:12,954 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-24 11:14:12,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-24 11:14:12,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-24 11:14:12,959 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-24 11:14:12,964 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-24 11:14:12,964 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-24 11:14:12,965 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-24 11:14:12,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-24 11:14:12,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-24 11:14:12,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-24 11:14:12,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-24 11:14:12,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-24 11:14:12,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-24 11:14:12,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-24 11:14:12,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-24 11:14:12,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-24 11:14:13,001 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-24 11:14:13,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-24 11:14:13,003 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-24 11:14:13,004 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-24 11:14:13,005 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-24 11:14:13,006 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-24 11:14:13,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-24 11:14:13,035 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-24 11:14:13,036 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-24 11:14:13,037 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-24 11:14:13,037 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-24 11:14:13,037 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-24 11:14:13,037 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-24 11:14:13,038 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-24 11:14:13,038 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-24 11:14:13,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-24 11:14:13,039 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-24 11:14:13,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-24 11:14:13,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-24 11:14:13,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-24 11:14:13,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-24 11:14:13,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-24 11:14:13,041 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-24 11:14:13,041 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-24 11:14:13,041 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-24 11:14:13,041 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-24 11:14:13,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-24 11:14:13,042 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-24 11:14:13,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-24 11:14:13,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-24 11:14:13,043 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-24 11:14:13,043 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-24 11:14:13,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:14:13,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-24 11:14:13,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-24 11:14:13,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-24 11:14:13,044 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-24 11:14:13,045 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-24 11:14:13,045 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-24 11:14:13,045 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-24 11:14:13,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-24 11:14:13,046 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_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fcc84f5729a405b025bbab75fe7efe2bc29401fd0d2f9c28c1e0558462a5b433 [2021-10-24 11:14:13,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-24 11:14:13,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-24 11:14:13,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-24 11:14:13,458 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-24 11:14:13,459 INFO L275 PluginConnector]: CDTParser initialized [2021-10-24 11:14:13,460 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/../../sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-24 11:14:13,542 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/d113f8b2c/2adc2023c5a44b1ca3dd98e14c04f500/FLAGb87a258a0 [2021-10-24 11:14:14,178 INFO L306 CDTParser]: Found 1 translation units. [2021-10-24 11:14:14,178 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c [2021-10-24 11:14:14,192 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/d113f8b2c/2adc2023c5a44b1ca3dd98e14c04f500/FLAGb87a258a0 [2021-10-24 11:14:14,512 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/data/d113f8b2c/2adc2023c5a44b1ca3dd98e14c04f500 [2021-10-24 11:14:14,515 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-24 11:14:14,516 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-24 11:14:14,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-24 11:14:14,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-24 11:14:14,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-24 11:14:14,527 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:14:14" (1/1) ... [2021-10-24 11:14:14,528 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e26694c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:14, skipping insertion in model container [2021-10-24 11:14:14,528 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 11:14:14" (1/1) ... [2021-10-24 11:14:14,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-24 11:14:14,587 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-24 11:14:14,814 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_779fd89d-1e3b-4f38-baa9-1345de6f4729/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-24 11:14:14,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:14:14,887 INFO L203 MainTranslator]: Completed pre-run [2021-10-24 11:14:14,969 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_779fd89d-1e3b-4f38-baa9-1345de6f4729/sv-benchmarks/c/float-newlib/double_req_bl_0686a.c[6204,6217] [2021-10-24 11:14:14,970 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-24 11:14:15,008 INFO L208 MainTranslator]: Completed translation [2021-10-24 11:14:15,008 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15 WrapperNode [2021-10-24 11:14:15,009 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-24 11:14:15,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-24 11:14:15,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-24 11:14:15,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-24 11:14:15,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-24 11:14:15,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-24 11:14:15,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-24 11:14:15,121 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-24 11:14:15,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,220 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-24 11:14:15,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-24 11:14:15,251 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-24 11:14:15,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-24 11:14:15,252 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (1/1) ... [2021-10-24 11:14:15,259 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-24 11:14:15,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:14:15,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-24 11:14:15,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-24 11:14:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-10-24 11:14:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-10-24 11:14:15,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-24 11:14:15,369 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-24 11:14:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-10-24 11:14:15,370 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-24 11:14:15,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-24 11:14:15,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-24 11:14:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-24 11:14:15,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-24 11:14:53,258 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-24 11:14:53,259 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-10-24 11:14:53,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:14:53 BoogieIcfgContainer [2021-10-24 11:14:53,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-24 11:14:53,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-24 11:14:53,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-24 11:14:53,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-24 11:14:53,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 11:14:14" (1/3) ... [2021-10-24 11:14:53,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d33a40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:14:53, skipping insertion in model container [2021-10-24 11:14:53,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 11:14:15" (2/3) ... [2021-10-24 11:14:53,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d33a40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 11:14:53, skipping insertion in model container [2021-10-24 11:14:53,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:14:53" (3/3) ... [2021-10-24 11:14:53,271 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0686a.c [2021-10-24 11:14:53,276 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-24 11:14:53,277 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-24 11:14:53,364 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-24 11:14:53,378 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-24 11:14:53,379 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-24 11:14:53,416 INFO L276 IsEmpty]: Start isEmpty. Operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 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) [2021-10-24 11:14:53,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-24 11:14:53,423 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:14:53,424 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:14:53,424 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:14:53,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:14:53,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1264059097, now seen corresponding path program 1 times [2021-10-24 11:14:53,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:14:53,449 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1078867919] [2021-10-24 11:14:53,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:14:53,450 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:14:53,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:14:53,453 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:14:53,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-24 11:14:53,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:14:53,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-24 11:14:53,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:14:54,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:14:54,171 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:14:54,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:14:54,411 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:14:54,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1078867919] [2021-10-24 11:14:54,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1078867919] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-24 11:14:54,413 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:14:54,413 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-24 11:14:54,414 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670524310] [2021-10-24 11:14:54,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-24 11:14:54,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-24 11:14:54,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-24 11:14:54,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:14:54,437 INFO L87 Difference]: Start difference. First operand has 113 states, 111 states have (on average 1.7117117117117118) internal successors, (190), 112 states have internal predecessors, (190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:14:54,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-24 11:14:54,464 INFO L93 Difference]: Finished difference Result 224 states and 378 transitions. [2021-10-24 11:14:54,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-24 11:14:54,466 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-10-24 11:14:54,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-24 11:14:54,474 INFO L225 Difference]: With dead ends: 224 [2021-10-24 11:14:54,475 INFO L226 Difference]: Without dead ends: 110 [2021-10-24 11:14:54,478 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-24 11:14:54,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2021-10-24 11:14:54,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2021-10-24 11:14:54,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 109 states have (on average 1.4495412844036697) internal successors, (158), 109 states have internal predecessors, (158), 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) [2021-10-24 11:14:54,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 158 transitions. [2021-10-24 11:14:54,519 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 158 transitions. Word has length 10 [2021-10-24 11:14:54,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-24 11:14:54,519 INFO L470 AbstractCegarLoop]: Abstraction has 110 states and 158 transitions. [2021-10-24 11:14:54,520 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-24 11:14:54,520 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 158 transitions. [2021-10-24 11:14:54,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-24 11:14:54,521 INFO L504 BasicCegarLoop]: Found error trace [2021-10-24 11:14:54,521 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-24 11:14:54,544 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-24 11:14:54,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:14:54,741 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-24 11:14:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-24 11:14:54,741 INFO L82 PathProgramCache]: Analyzing trace with hash -925329470, now seen corresponding path program 1 times [2021-10-24 11:14:54,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-24 11:14:54,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [767555695] [2021-10-24 11:14:54,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:14:54,743 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-24 11:14:54,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat [2021-10-24 11:14:54,744 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-24 11:14:54,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-24 11:14:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:14:55,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 11:14:55,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-24 11:14:55,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 53 [2021-10-24 11:14:58,772 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:14:58,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 80 treesize of output 78 [2021-10-24 11:14:59,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 17 [2021-10-24 11:15:02,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-24 11:15:02,666 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-24 11:15:06,177 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:15:06,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 124 treesize of output 108 [2021-10-24 11:15:06,357 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-24 11:15:06,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 110 [2021-10-24 11:15:06,400 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-24 11:15:06,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [767555695] [2021-10-24 11:15:06,401 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: Should have been eliminated by DER [2021-10-24 11:15:06,401 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [477479183] [2021-10-24 11:15:06,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:15:06,402 INFO L170 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-10-24 11:15:06,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/cvc4 [2021-10-24 11:15:06,403 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-10-24 11:15:06,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-10-24 11:15:09,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:15:09,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 11:15:09,388 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@d23e8fa [2021-10-24 11:15:09,388 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [703072399] [2021-10-24 11:15:09,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-24 11:15:09,389 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-24 11:15:09,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 [2021-10-24 11:15:09,391 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-24 11:15:09,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-24 11:15:09,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-24 11:15:09,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-24 11:15:09,575 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: ManagedScript already locked by de.uni_freiburg.informatik.ultimate.lib.smtlibutils.IncrementalPlicationChecker@d23e8fa [2021-10-24 11:15:09,575 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-10-24 11:15:09,575 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-10-24 11:15:09,575 ERROR L172 FreeRefinementEngine]: Strategy WALRUS failed to provide any proof altough trace is infeasible [2021-10-24 11:15:09,576 INFO L626 BasicCegarLoop]: Counterexample might be feasible [2021-10-24 11:15:09,582 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-24 11:15:09,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-24 11:15:09,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2021-10-24 11:15:09,998 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 (3)] Ended with exit code 0 [2021-10-24 11:15:10,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/mathsat -unsat_core_generation=3 [2021-10-24 11:15:10,191 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-24 11:15:10,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 11:15:10 BoogieIcfgContainer [2021-10-24 11:15:10,206 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-24 11:15:10,207 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-24 11:15:10,207 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-24 11:15:10,207 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-24 11:15:10,208 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 11:14:53" (3/4) ... [2021-10-24 11:15:10,211 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-24 11:15:10,211 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-24 11:15:10,213 INFO L168 Benchmark]: Toolchain (without parser) took 55695.68 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 34.8 MB in the beginning and 47.4 MB in the end (delta: -12.7 MB). Peak memory consumption was 15.5 MB. Max. memory is 16.1 GB. [2021-10-24 11:15:10,213 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:15:10,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 488.81 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 34.6 MB in the beginning and 63.5 MB in the end (delta: -29.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-24 11:15:10,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 108.05 ms. Allocated memory is still 83.9 MB. Free memory was 63.5 MB in the beginning and 59.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-24 11:15:10,215 INFO L168 Benchmark]: Boogie Preprocessor took 129.81 ms. Allocated memory is still 83.9 MB. Free memory was 59.8 MB in the beginning and 56.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:15:10,216 INFO L168 Benchmark]: RCFGBuilder took 38011.54 ms. Allocated memory is still 83.9 MB. Free memory was 56.3 MB in the beginning and 39.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:15:10,217 INFO L168 Benchmark]: TraceAbstraction took 16942.73 ms. Allocated memory is still 83.9 MB. Free memory was 38.5 MB in the beginning and 48.0 MB in the end (delta: -9.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-24 11:15:10,218 INFO L168 Benchmark]: Witness Printer took 4.54 ms. Allocated memory is still 83.9 MB. Free memory was 48.0 MB in the beginning and 47.4 MB in the end (delta: 593.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-24 11:15:10,222 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 56.6 MB. Free memory is still 37.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 488.81 ms. Allocated memory was 56.6 MB in the beginning and 83.9 MB in the end (delta: 27.3 MB). Free memory was 34.6 MB in the beginning and 63.5 MB in the end (delta: -29.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 108.05 ms. Allocated memory is still 83.9 MB. Free memory was 63.5 MB in the beginning and 59.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 129.81 ms. Allocated memory is still 83.9 MB. Free memory was 59.8 MB in the beginning and 56.3 MB in the end (delta: 3.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 38011.54 ms. Allocated memory is still 83.9 MB. Free memory was 56.3 MB in the beginning and 39.2 MB in the end (delta: 17.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 16942.73 ms. Allocated memory is still 83.9 MB. Free memory was 38.5 MB in the beginning and 48.0 MB in the end (delta: -9.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.54 ms. Allocated memory is still 83.9 MB. Free memory was 48.0 MB in the beginning and 47.4 MB in the end (delta: 593.6 kB). Peak memory consumption was 2.1 MB. 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: 258]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; [L252] double x = 1.0 / 0.0; [L253] double y = 1.0 / 0.0; [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; [L255] double res = __ieee754_atan2(y, x); [L257] COND TRUE res != pi_o_4 [L258] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 113 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16827.9ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 17.9ms, AutomataDifference: 58.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 26.5ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 161 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=113occurred 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: 27.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 19.9ms SsaConstructionTime, 379.7ms SatisfiabilityAnalysisTime, 505.4ms InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 114 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 [2021-10-24 11:15:10,446 WARN L435 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2021-10-24 11:15:10,498 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_779fd89d-1e3b-4f38-baa9-1345de6f4729/bin/utaipan-9zjyvhn0QE/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 137 Received shutdown request...