./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8 --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 88d3648b8ee059de01de6f913fc316c297763bb6 ................................................................................................................................................................................................................................................................................................................................. 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_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8 --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 88d3648b8ee059de01de6f913fc316c297763bb6 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 07:05:42,364 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:05:42,365 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:05:42,415 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:05:42,415 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:05:42,419 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:05:42,421 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:05:42,423 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:05:42,425 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:05:42,426 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:05:42,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:05:42,429 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:05:42,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:05:42,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:05:42,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:05:42,434 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:05:42,435 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:05:42,436 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:05:42,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:05:42,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:05:42,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:05:42,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:05:42,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:05:42,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:05:42,450 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:05:42,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:05:42,451 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:05:42,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:05:42,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:05:42,454 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:05:42,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:05:42,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:05:42,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:05:42,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:05:42,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:05:42,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:05:42,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:05:42,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:05:42,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:05:42,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:05:42,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:05:42,468 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-13 07:05:42,515 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:05:42,515 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:05:42,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:05:42,518 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:05:42,518 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:05:42,518 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:05:42,518 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-13 07:05:42,519 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:05:42,525 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:05:42,525 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-13 07:05:42,526 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-13 07:05:42,527 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:05:42,527 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-13 07:05:42,527 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-13 07:05:42,527 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-13 07:05:42,528 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:05:42,528 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:05:42,529 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 07:05:42,529 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:05:42,529 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:05:42,529 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:05:42,529 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:05:42,530 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:05:42,530 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:05:42,530 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:05:42,530 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:05:42,530 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:05:42,531 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:05:42,531 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:05:42,532 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:05:42,533 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:05:42,533 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:05:42,533 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:05:42,534 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:05:42,534 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-13 07:05:42,534 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 07:05:42,534 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:05:42,534 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:05:42,535 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:05:42,535 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_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2021-10-13 07:05:42,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:05:42,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:05:42,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:05:42,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:05:42,849 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:05:42,850 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-13 07:05:42,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/54f90a700/c25de288277f43be91103f72350f017f/FLAGe03395090 [2021-10-13 07:05:43,355 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:05:43,356 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-13 07:05:43,368 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/54f90a700/c25de288277f43be91103f72350f017f/FLAGe03395090 [2021-10-13 07:05:43,721 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/54f90a700/c25de288277f43be91103f72350f017f [2021-10-13 07:05:43,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:05:43,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:05:43,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:05:43,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:05:43,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:05:43,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:05:43" (1/1) ... [2021-10-13 07:05:43,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c12c5e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:43, skipping insertion in model container [2021-10-13 07:05:43,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:05:43" (1/1) ... [2021-10-13 07:05:43,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:05:43,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:05:43,980 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_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-13 07:05:43,983 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:05:43,992 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:05:44,038 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_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-13 07:05:44,039 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:05:44,053 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:05:44,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44 WrapperNode [2021-10-13 07:05:44,054 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:05:44,055 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:05:44,055 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:05:44,056 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:05:44,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,104 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:05:44,105 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:05:44,105 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:05:44,105 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:05:44,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,118 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,139 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:05:44,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:05:44,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:05:44,145 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:05:44,146 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (1/1) ... [2021-10-13 07:05:44,168 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:05:44,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:05:44,213 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:05:44,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:05:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 07:05:44,265 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:05:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-10-13 07:05:44,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 07:05:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-10-13 07:05:44,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:05:44,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:05:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-13 07:05:44,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:05:44,843 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:05:44,851 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-13 07:05:44,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:05:44 BoogieIcfgContainer [2021-10-13 07:05:44,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:05:44,856 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:05:44,857 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:05:44,860 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:05:44,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:05:43" (1/3) ... [2021-10-13 07:05:44,862 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62030569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:05:44, skipping insertion in model container [2021-10-13 07:05:44,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:44" (2/3) ... [2021-10-13 07:05:44,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62030569 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:05:44, skipping insertion in model container [2021-10-13 07:05:44,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:05:44" (3/3) ... [2021-10-13 07:05:44,865 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2021-10-13 07:05:44,875 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:05:44,876 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:05:44,919 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:05:44,925 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:05:44,926 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:05:44,940 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 39 states have internal predecessors, (64), 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) [2021-10-13 07:05:44,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 07:05:44,946 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:05:44,946 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:05:44,947 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:05:44,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:05:44,952 INFO L82 PathProgramCache]: Analyzing trace with hash -2140931982, now seen corresponding path program 1 times [2021-10-13 07:05:44,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:05:44,962 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235807208] [2021-10-13 07:05:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:05:44,964 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:05:45,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:05:45,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:05:45,171 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-13 07:05:45,171 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235807208] [2021-10-13 07:05:45,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235807208] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 07:05:45,172 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:05:45,172 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 07:05:45,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376842426] [2021-10-13 07:05:45,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:05:45,180 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-13 07:05:45,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:05:45,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:05:45,221 INFO L87 Difference]: Start difference. First operand has 40 states, 38 states have (on average 1.6842105263157894) internal successors, (64), 39 states have internal predecessors, (64), 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 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-13 07:05:45,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:05:45,270 INFO L93 Difference]: Finished difference Result 79 states and 127 transitions. [2021-10-13 07:05:45,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:05:45,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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 [2021-10-13 07:05:45,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:05:45,282 INFO L225 Difference]: With dead ends: 79 [2021-10-13 07:05:45,283 INFO L226 Difference]: Without dead ends: 37 [2021-10-13 07:05:45,286 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:05:45,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-10-13 07:05:45,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2021-10-13 07:05:45,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.2222222222222223) internal successors, (44), 36 states have internal predecessors, (44), 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) [2021-10-13 07:05:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2021-10-13 07:05:45,325 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 9 [2021-10-13 07:05:45,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:05:45,325 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2021-10-13 07:05:45,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 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) [2021-10-13 07:05:45,326 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2021-10-13 07:05:45,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 07:05:45,327 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:05:45,327 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:05:45,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 07:05:45,328 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:05:45,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:05:45,331 INFO L82 PathProgramCache]: Analyzing trace with hash 1843149463, now seen corresponding path program 1 times [2021-10-13 07:05:45,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-13 07:05:45,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56574518] [2021-10-13 07:05:45,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:05:45,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 07:05:45,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:05:45,446 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 07:05:45,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 07:05:45,576 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-13 07:05:45,579 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-13 07:05:45,581 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:05:45,586 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 07:05:45,592 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:05:45,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:05:45 BoogieIcfgContainer [2021-10-13 07:05:45,656 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:05:45,658 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:05:45,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:05:45,658 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:05:45,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:05:44" (3/4) ... [2021-10-13 07:05:45,661 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-10-13 07:05:45,662 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:05:45,664 INFO L168 Benchmark]: Toolchain (without parser) took 1938.37 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 38.1 MB in the beginning and 61.4 MB in the end (delta: -23.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:05:45,665 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 55.1 MB in the beginning and 55.0 MB in the end (delta: 42.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:05:45,668 INFO L168 Benchmark]: CACSL2BoogieTranslator took 328.91 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 37.9 MB in the beginning and 68.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:05:45,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.79 ms. Allocated memory is still 100.7 MB. Free memory was 68.8 MB in the beginning and 66.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:05:45,675 INFO L168 Benchmark]: Boogie Preprocessor took 38.80 ms. Allocated memory is still 100.7 MB. Free memory was 66.4 MB in the beginning and 64.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:05:45,675 INFO L168 Benchmark]: RCFGBuilder took 710.32 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 43.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-10-13 07:05:45,676 INFO L168 Benchmark]: TraceAbstraction took 800.85 ms. Allocated memory is still 100.7 MB. Free memory was 42.7 MB in the beginning and 61.9 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:05:45,676 INFO L168 Benchmark]: Witness Printer took 4.33 ms. Allocated memory is still 100.7 MB. Free memory was 61.9 MB in the beginning and 61.4 MB in the end (delta: 468.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:05:45,684 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 79.7 MB. Free memory was 55.1 MB in the beginning and 55.0 MB in the end (delta: 42.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 328.91 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 37.9 MB in the beginning and 68.8 MB in the end (delta: -30.9 MB). Peak memory consumption was 4.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 48.79 ms. Allocated memory is still 100.7 MB. Free memory was 68.8 MB in the beginning and 66.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 38.80 ms. Allocated memory is still 100.7 MB. Free memory was 66.4 MB in the beginning and 64.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 710.32 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 43.1 MB in the end (delta: 21.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 800.85 ms. Allocated memory is still 100.7 MB. Free memory was 42.7 MB in the beginning and 61.9 MB in the end (delta: -19.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.33 ms. Allocated memory is still 100.7 MB. Free memory was 61.9 MB in the beginning and 61.4 MB in the end (delta: 468.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 176]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 147, overapproximation of bitwiseAnd at line 118, overapproximation of someBinaryArithmeticFLOAToperation at line 119. Possible FailurePath: [L14-L18] static const float ln2_hi_log = 6.9313812256e-01, ln2_lo_log = 9.0580006145e-06, two25_log = 3.355443200e+07, Lg1_log = 6.6666668653e-01, Lg2_log = 4.0000000596e-01, Lg3_log = 2.8571429849e-01, Lg4_log = 2.2222198546e-01, Lg5_log = 1.8183572590e-01, Lg6_log = 1.5313838422e-01, Lg7_log = 1.4798198640e-01; [L20] static const float zero_log = 0.0; [L100-L103] static const float two25_log10 = 3.3554432000e+07, ivln10_log10 = 4.3429449201e-01, log10_2hi_log10 = 3.0102920532e-01, log10_2lo_log10 = 7.9034151668e-07; [L105] static const float zero = 0.0; [L168] float x = __VERIFIER_nondet_float(); [L170] x < 0 && isfinite_float(x) [L151] __int32_t ix; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L153] ieee_float_shape_type gf_u; [L154] gf_u.value = (x) [L155] EXPR gf_u.word [L155] (ix) = gf_u.word [L157] ix &= 0x7fffffff [L158] return (((ix) < 0x7f800000L)); [L170] x < 0 && isfinite_float(x) VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L170] COND TRUE x < 0 && isfinite_float(x) [L108] float y, z; [L109] __int32_t i, k, hx; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L112] ieee_float_shape_type gf_u; [L113] gf_u.value = (x) [L114] EXPR gf_u.word [L114] (hx) = gf_u.word [L117] k = 0 VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L118] COND TRUE ((hx & 0x7fffffff) == 0) [L119] return -two25_log10 / zero; VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] [L172] float res = __ieee754_log10f(x); [L147] return x != x; [L175] COND TRUE !isnan_float(res) [L176] reach_error() VAL [ivln10_log10=43429449201/100000000000, Lg1_log=66666668653/100000000000, Lg2_log=10000000149/25000000000, Lg3_log=28571429849/100000000000, Lg4_log=11111099273/50000000000, Lg5_log=1818357259/10000000000, Lg6_log=7656919211/50000000000, Lg7_log=184977483/1250000000, ln2_hi_log=2166056633/3125000000, ln2_lo_log=18116001229/2000000000000000, log10_2hi_log10=7525730133/25000000000, log10_2lo_log10=19758537917/25000000000000000, two25_log=33554432, two25_log10=33554432, zero=0, zero_log=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 673.4ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 9.9ms, AutomataDifference: 105.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 10.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48 SDtfs, 0 SDslu, 43 SDs, 0 SdLazy, 6 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 24.1ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 18.2ms SsaConstructionTime, 141.9ms SatisfiabilityAnalysisTime, 90.7ms InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-10-13 07:05:45,743 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/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-4e77c04 [2021-10-13 07:05:48,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 07:05:48,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 07:05:48,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 07:05:48,268 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 07:05:48,269 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 07:05:48,271 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 07:05:48,274 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 07:05:48,276 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 07:05:48,278 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 07:05:48,279 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 07:05:48,280 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 07:05:48,281 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 07:05:48,282 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 07:05:48,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 07:05:48,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 07:05:48,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 07:05:48,287 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 07:05:48,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 07:05:48,292 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 07:05:48,294 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 07:05:48,295 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 07:05:48,297 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 07:05:48,298 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 07:05:48,302 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 07:05:48,302 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 07:05:48,303 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 07:05:48,304 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 07:05:48,304 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 07:05:48,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 07:05:48,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 07:05:48,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 07:05:48,308 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 07:05:48,309 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 07:05:48,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 07:05:48,311 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 07:05:48,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 07:05:48,312 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 07:05:48,312 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 07:05:48,313 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 07:05:48,314 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 07:05:48,316 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-10-13 07:05:48,340 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 07:05:48,340 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 07:05:48,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-13 07:05:48,341 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-13 07:05:48,342 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-13 07:05:48,342 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-13 07:05:48,342 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-13 07:05:48,342 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-13 07:05:48,342 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-13 07:05:48,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 07:05:48,343 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 07:05:48,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 07:05:48,344 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 07:05:48,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 07:05:48,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 07:05:48,344 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 07:05:48,344 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-13 07:05:48,344 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-10-13 07:05:48,345 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-10-13 07:05:48,345 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 07:05:48,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 07:05:48,345 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 07:05:48,345 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 07:05:48,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 07:05:48,346 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 07:05:48,346 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 07:05:48,346 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:05:48,346 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 07:05:48,347 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 07:05:48,347 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 07:05:48,347 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-10-13 07:05:48,347 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-10-13 07:05:48,347 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 07:05:48,348 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 07:05:48,348 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-13 07:05:48,348 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_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88d3648b8ee059de01de6f913fc316c297763bb6 [2021-10-13 07:05:48,737 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 07:05:48,761 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 07:05:48,764 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 07:05:48,765 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 07:05:48,766 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 07:05:48,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/../../sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-13 07:05:48,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/14d627575/6dd1469ea24643d59a8459669cfecde6/FLAGf712d6a27 [2021-10-13 07:05:49,405 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 07:05:49,406 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c [2021-10-13 07:05:49,414 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/14d627575/6dd1469ea24643d59a8459669cfecde6/FLAGf712d6a27 [2021-10-13 07:05:49,766 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/data/14d627575/6dd1469ea24643d59a8459669cfecde6 [2021-10-13 07:05:49,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 07:05:49,778 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 07:05:49,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 07:05:49,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 07:05:49,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 07:05:49,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:05:49" (1/1) ... [2021-10-13 07:05:49,792 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1445407a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:49, skipping insertion in model container [2021-10-13 07:05:49,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 07:05:49" (1/1) ... [2021-10-13 07:05:49,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 07:05:49,841 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 07:05:50,125 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_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-13 07:05:50,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:05:50,148 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 07:05:50,220 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_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/sv-benchmarks/c/float-newlib/float_req_bl_0970a.c[4407,4420] [2021-10-13 07:05:50,221 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 07:05:50,238 INFO L208 MainTranslator]: Completed translation [2021-10-13 07:05:50,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50 WrapperNode [2021-10-13 07:05:50,238 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 07:05:50,239 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 07:05:50,240 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 07:05:50,240 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 07:05:50,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,314 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 07:05:50,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 07:05:50,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 07:05:50,315 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 07:05:50,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,332 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,332 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,345 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 07:05:50,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 07:05:50,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 07:05:50,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 07:05:50,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (1/1) ... [2021-10-13 07:05:50,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 07:05:50,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/z3 [2021-10-13 07:05:50,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 07:05:50,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 07:05:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-10-13 07:05:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 07:05:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-10-13 07:05:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-10-13 07:05:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 07:05:50,433 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 07:05:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-10-13 07:05:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-10-13 07:05:50,433 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 07:06:12,351 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 07:06:12,351 INFO L299 CfgBuilder]: Removed 26 assume(true) statements. [2021-10-13 07:06:12,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:06:12 BoogieIcfgContainer [2021-10-13 07:06:12,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 07:06:12,356 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 07:06:12,356 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 07:06:12,359 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 07:06:12,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 07:05:49" (1/3) ... [2021-10-13 07:06:12,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9c96af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:06:12, skipping insertion in model container [2021-10-13 07:06:12,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 07:05:50" (2/3) ... [2021-10-13 07:06:12,361 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e9c96af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 07:06:12, skipping insertion in model container [2021-10-13 07:06:12,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:06:12" (3/3) ... [2021-10-13 07:06:12,363 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0970a.c [2021-10-13 07:06:12,369 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 07:06:12,370 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 07:06:12,428 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 07:06:12,434 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-13 07:06:12,435 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-13 07:06:12,454 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 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) [2021-10-13 07:06:12,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-13 07:06:12,460 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:06:12,461 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:06:12,461 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:06:12,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:06:12,467 INFO L82 PathProgramCache]: Analyzing trace with hash 629078660, now seen corresponding path program 1 times [2021-10-13 07:06:12,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:06:12,478 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365429807] [2021-10-13 07:06:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:06:12,479 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:06:12,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:06:12,480 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:06:12,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-10-13 07:06:13,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:06:13,211 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2021-10-13 07:06:13,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:06:13,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:13,308 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:06:13,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:13,373 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:06:13,374 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365429807] [2021-10-13 07:06:13,374 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365429807] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:06:13,375 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:06:13,375 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-10-13 07:06:13,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062371982] [2021-10-13 07:06:13,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-13 07:06:13,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:06:13,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-13 07:06:13,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:06:13,397 INFO L87 Difference]: Start difference. First operand has 51 states, 49 states have (on average 1.6734693877551021) internal successors, (82), 50 states have internal predecessors, (82), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:06:13,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:06:13,426 INFO L93 Difference]: Finished difference Result 99 states and 160 transitions. [2021-10-13 07:06:13,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-13 07:06:13,428 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-10-13 07:06:13,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:06:13,436 INFO L225 Difference]: With dead ends: 99 [2021-10-13 07:06:13,437 INFO L226 Difference]: Without dead ends: 47 [2021-10-13 07:06:13,441 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-13 07:06:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-13 07:06:13,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-13 07:06:13,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 46 states have internal predecessors, (62), 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) [2021-10-13 07:06:13,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2021-10-13 07:06:13,497 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 11 [2021-10-13 07:06:13,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:06:13,499 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2021-10-13 07:06:13,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:06:13,499 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2021-10-13 07:06:13,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 07:06:13,500 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:06:13,501 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:06:13,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-10-13 07:06:13,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:06:13,715 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:06:13,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:06:13,716 INFO L82 PathProgramCache]: Analyzing trace with hash -1648732847, now seen corresponding path program 1 times [2021-10-13 07:06:13,717 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:06:13,717 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1848657970] [2021-10-13 07:06:13,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:06:13,718 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:06:13,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:06:13,719 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:06:13,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-10-13 07:06:14,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:06:14,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-13 07:06:14,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:06:14,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:14,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:06:14,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:14,638 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:06:14,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1848657970] [2021-10-13 07:06:14,638 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1848657970] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:06:14,638 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:06:14,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-10-13 07:06:14,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949109064] [2021-10-13 07:06:14,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 07:06:14,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:06:14,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 07:06:14,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:06:14,642 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-13 07:06:14,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:06:14,687 INFO L93 Difference]: Finished difference Result 87 states and 116 transitions. [2021-10-13 07:06:14,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 07:06:14,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 12 [2021-10-13 07:06:14,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:06:14,689 INFO L225 Difference]: With dead ends: 87 [2021-10-13 07:06:14,689 INFO L226 Difference]: Without dead ends: 47 [2021-10-13 07:06:14,690 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 22.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 07:06:14,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-10-13 07:06:14,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2021-10-13 07:06:14,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.326086956521739) internal successors, (61), 46 states have internal predecessors, (61), 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) [2021-10-13 07:06:14,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2021-10-13 07:06:14,697 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2021-10-13 07:06:14,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:06:14,698 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2021-10-13 07:06:14,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2021-10-13 07:06:14,698 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2021-10-13 07:06:14,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-10-13 07:06:14,699 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:06:14,699 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:06:14,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-10-13 07:06:14,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:06:14,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:06:14,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:06:14,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1229314972, now seen corresponding path program 1 times [2021-10-13 07:06:14,925 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:06:14,925 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [954748588] [2021-10-13 07:06:14,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:06:14,925 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:06:14,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:06:14,926 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:06:14,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-10-13 07:06:15,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:06:15,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-13 07:06:15,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:06:16,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:16,361 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:06:17,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:17,330 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:06:17,330 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [954748588] [2021-10-13 07:06:17,330 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [954748588] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:06:17,330 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:06:17,330 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2021-10-13 07:06:17,331 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [311600428] [2021-10-13 07:06:17,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:06:17,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:06:17,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:06:17,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:06:17,332 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2021-10-13 07:06:19,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:06:19,757 INFO L93 Difference]: Finished difference Result 52 states and 65 transitions. [2021-10-13 07:06:19,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-13 07:06:19,787 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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 16 [2021-10-13 07:06:19,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:06:19,788 INFO L225 Difference]: With dead ends: 52 [2021-10-13 07:06:19,789 INFO L226 Difference]: Without dead ends: 18 [2021-10-13 07:06:19,789 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1338.8ms TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:06:19,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-10-13 07:06:19,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2021-10-13 07:06:19,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0) internal successors, (17), 17 states have internal predecessors, (17), 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) [2021-10-13 07:06:19,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2021-10-13 07:06:19,793 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 16 [2021-10-13 07:06:19,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:06:19,793 INFO L470 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2021-10-13 07:06:19,793 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 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) [2021-10-13 07:06:19,793 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2021-10-13 07:06:19,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-10-13 07:06:19,794 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 07:06:19,794 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 07:06:19,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-10-13 07:06:19,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:06:19,995 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-13 07:06:19,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 07:06:19,996 INFO L82 PathProgramCache]: Analyzing trace with hash -616191433, now seen corresponding path program 1 times [2021-10-13 07:06:19,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-10-13 07:06:19,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [27509819] [2021-10-13 07:06:19,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 07:06:19,997 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-10-13 07:06:19,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat [2021-10-13 07:06:19,998 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-10-13 07:06:20,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-10-13 07:06:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 07:06:20,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-13 07:06:20,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-13 07:06:21,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:21,505 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-13 07:06:43,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 07:06:43,426 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-10-13 07:06:43,426 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [27509819] [2021-10-13 07:06:43,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [27509819] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-13 07:06:43,426 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-13 07:06:43,426 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 9 [2021-10-13 07:06:43,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136990938] [2021-10-13 07:06:43,427 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-13 07:06:43,427 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-10-13 07:06:43,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-13 07:06:43,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-10-13 07:06:43,428 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 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) [2021-10-13 07:06:45,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 07:06:45,354 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2021-10-13 07:06:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 07:06:45,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 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 17 [2021-10-13 07:06:45,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 07:06:45,355 INFO L225 Difference]: With dead ends: 18 [2021-10-13 07:06:45,355 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 07:06:45,356 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 5155.1ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-10-13 07:06:45,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 07:06:45,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 07:06:45,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 07:06:45,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 07:06:45,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2021-10-13 07:06:45,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 07:06:45,358 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 07:06:45,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 states have internal predecessors, (33), 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) [2021-10-13 07:06:45,358 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 07:06:45,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 07:06:45,361 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 07:06:45,389 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-10-13 07:06:45,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/mathsat -unsat_core_generation=3 [2021-10-13 07:06:45,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-13 07:06:45,591 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,622 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,629 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,631 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,635 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,639 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,653 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,660 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:45,661 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-13 07:06:46,610 INFO L857 garLoopResultBuilder]: For program point L93(lines 93 96) no Hoare annotation was computed. [2021-10-13 07:06:46,610 INFO L857 garLoopResultBuilder]: For program point L60(lines 60 65) no Hoare annotation was computed. [2021-10-13 07:06:46,610 INFO L857 garLoopResultBuilder]: For program point L118(lines 118 119) no Hoare annotation was computed. [2021-10-13 07:06:46,610 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 97) no Hoare annotation was computed. [2021-10-13 07:06:46,611 INFO L857 garLoopResultBuilder]: For program point L176(line 176) no Hoare annotation was computed. [2021-10-13 07:06:46,611 INFO L853 garLoopResultBuilder]: At program point L143(lines 107 144) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((ULTIMATE.start___ieee754_log10f_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10f_~x ULTIMATE.start___ieee754_log10f_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-13 07:06:46,611 INFO L857 garLoopResultBuilder]: For program point L127-1(lines 127 131) no Hoare annotation was computed. [2021-10-13 07:06:46,611 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-13 07:06:46,612 INFO L853 garLoopResultBuilder]: At program point L127-2(lines 127 131) the Hoare annotation is: false [2021-10-13 07:06:46,612 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-13 07:06:46,612 INFO L857 garLoopResultBuilder]: For program point L152-1(lines 152 156) no Hoare annotation was computed. [2021-10-13 07:06:46,612 INFO L853 garLoopResultBuilder]: At program point L152-2(lines 152 156) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-13 07:06:46,612 INFO L857 garLoopResultBuilder]: For program point L152-3(lines 152 156) no Hoare annotation was computed. [2021-10-13 07:06:46,612 INFO L857 garLoopResultBuilder]: For program point L111-1(lines 111 115) no Hoare annotation was computed. [2021-10-13 07:06:46,613 INFO L853 garLoopResultBuilder]: At program point L111-2(lines 111 115) the Hoare annotation is: (and (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-13 07:06:46,613 INFO L857 garLoopResultBuilder]: For program point L111-3(lines 111 115) no Hoare annotation was computed. [2021-10-13 07:06:46,613 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 38) no Hoare annotation was computed. [2021-10-13 07:06:46,613 INFO L857 garLoopResultBuilder]: For program point L120(lines 120 121) no Hoare annotation was computed. [2021-10-13 07:06:46,613 INFO L857 garLoopResultBuilder]: For program point L87(lines 87 91) no Hoare annotation was computed. [2021-10-13 07:06:46,613 INFO L857 garLoopResultBuilder]: For program point L170(line 170) no Hoare annotation was computed. [2021-10-13 07:06:46,614 INFO L857 garLoopResultBuilder]: For program point L170-2(lines 170 179) no Hoare annotation was computed. [2021-10-13 07:06:46,614 INFO L857 garLoopResultBuilder]: For program point L137-1(lines 137 141) no Hoare annotation was computed. [2021-10-13 07:06:46,614 INFO L853 garLoopResultBuilder]: At program point L137-2(lines 137 141) the Hoare annotation is: false [2021-10-13 07:06:46,614 INFO L857 garLoopResultBuilder]: For program point L137-3(lines 137 141) no Hoare annotation was computed. [2021-10-13 07:06:46,614 INFO L857 garLoopResultBuilder]: For program point L170-4(lines 170 179) no Hoare annotation was computed. [2021-10-13 07:06:46,614 INFO L853 garLoopResultBuilder]: At program point L96(lines 22 98) the Hoare annotation is: false [2021-10-13 07:06:46,615 INFO L857 garLoopResultBuilder]: For program point L39(lines 39 47) no Hoare annotation was computed. [2021-10-13 07:06:46,615 INFO L857 garLoopResultBuilder]: For program point L39-1(lines 39 47) no Hoare annotation was computed. [2021-10-13 07:06:46,615 INFO L857 garLoopResultBuilder]: For program point L122(lines 122 123) no Hoare annotation was computed. [2021-10-13 07:06:46,615 INFO L853 garLoopResultBuilder]: At program point L147(line 147) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (fp.lt (fp ((_ extract 31 31) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_log10f_~hx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_log10f_~hx~0)) ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (exists ((ULTIMATE.start___ieee754_log10f_~x (_ FloatingPoint 8 24))) (= (fp.div roundNearestTiesToEven (fp.sub roundNearestTiesToEven ULTIMATE.start___ieee754_log10f_~x ULTIMATE.start___ieee754_log10f_~x) ((_ to_fp 8 24) roundNearestTiesToEven (_ +zero 11 53))) |ULTIMATE.start___ieee754_log10f_#res|)) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start___ieee754_log10f_~x ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) [2021-10-13 07:06:46,615 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-13 07:06:46,616 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 176) no Hoare annotation was computed. [2021-10-13 07:06:46,616 INFO L860 garLoopResultBuilder]: At program point L181(lines 161 182) the Hoare annotation is: true [2021-10-13 07:06:46,616 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-10-13 07:06:46,616 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-13 07:06:46,616 INFO L857 garLoopResultBuilder]: For program point L124(lines 124 132) no Hoare annotation was computed. [2021-10-13 07:06:46,616 INFO L857 garLoopResultBuilder]: For program point L124-1(lines 124 132) no Hoare annotation was computed. [2021-10-13 07:06:46,616 INFO L857 garLoopResultBuilder]: For program point L58(lines 58 74) no Hoare annotation was computed. [2021-10-13 07:06:46,617 INFO L857 garLoopResultBuilder]: For program point L42-1(lines 42 46) no Hoare annotation was computed. [2021-10-13 07:06:46,617 INFO L853 garLoopResultBuilder]: At program point L42-2(lines 42 46) the Hoare annotation is: false [2021-10-13 07:06:46,617 INFO L853 garLoopResultBuilder]: At program point L158(lines 150 159) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short17| (= ((_ to_fp 8 24) currentRoundingMode (_ +zero 11 53)) ~zero~0) (exists ((currentRoundingMode RoundingMode)) (fp.lt ULTIMATE.start_main_~x~0 ((_ to_fp 8 24) currentRoundingMode (_ bv0 32)))) (= currentRoundingMode roundNearestTiesToEven)) [2021-10-13 07:06:46,617 INFO L857 garLoopResultBuilder]: For program point L59(lines 59 66) no Hoare annotation was computed. [2021-10-13 07:06:46,617 INFO L857 garLoopResultBuilder]: For program point L26-1(lines 26 30) no Hoare annotation was computed. [2021-10-13 07:06:46,617 INFO L853 garLoopResultBuilder]: At program point L26-2(lines 26 30) the Hoare annotation is: false [2021-10-13 07:06:46,618 INFO L857 garLoopResultBuilder]: For program point L26-3(lines 26 30) no Hoare annotation was computed. [2021-10-13 07:06:46,618 INFO L857 garLoopResultBuilder]: For program point L51-1(lines 51 55) no Hoare annotation was computed. [2021-10-13 07:06:46,618 INFO L853 garLoopResultBuilder]: At program point L51-2(lines 51 55) the Hoare annotation is: false [2021-10-13 07:06:46,618 INFO L857 garLoopResultBuilder]: For program point L51-3(lines 51 55) no Hoare annotation was computed. [2021-10-13 07:06:46,618 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 178) no Hoare annotation was computed. [2021-10-13 07:06:46,618 INFO L857 garLoopResultBuilder]: For program point L68(lines 68 73) no Hoare annotation was computed. [2021-10-13 07:06:46,620 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-10-13 07:06:46,623 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 07:06:46,628 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,632 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,637 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,638 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,643 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,644 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,644 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,645 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,645 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,648 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,649 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,650 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,650 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,651 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,651 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,651 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,651 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,651 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,652 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,653 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,654 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,654 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,655 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,655 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,655 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,655 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,656 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,657 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,658 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,658 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,658 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,663 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,667 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,667 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,668 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,668 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,669 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,669 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,687 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,688 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,694 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,695 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,695 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,695 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,696 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,696 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 07:06:46 BoogieIcfgContainer [2021-10-13 07:06:46,697 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 07:06:46,698 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 07:06:46,700 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 07:06:46,700 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 07:06:46,701 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 07:06:12" (3/4) ... [2021-10-13 07:06:46,703 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 07:06:46,715 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 23 nodes and edges [2021-10-13 07:06:46,716 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-13 07:06:46,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:06:46,717 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 07:06:46,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-13 07:06:46,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-13 07:06:46,743 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-13 07:06:46,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2021-10-13 07:06:46,744 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result [2021-10-13 07:06:46,794 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/witness.graphml [2021-10-13 07:06:46,794 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 07:06:46,796 INFO L168 Benchmark]: Toolchain (without parser) took 57017.05 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 40.8 MB in the beginning and 55.7 MB in the end (delta: -14.9 MB). Peak memory consumption was 6.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:06:46,796 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 07:06:46,797 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.03 ms. Allocated memory is still 60.8 MB. Free memory was 40.5 MB in the beginning and 40.4 MB in the end (delta: 99.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-13 07:06:46,797 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.53 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 37.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:06:46,798 INFO L168 Benchmark]: Boogie Preprocessor took 43.72 ms. Allocated memory is still 60.8 MB. Free memory was 37.9 MB in the beginning and 35.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 07:06:46,798 INFO L168 Benchmark]: RCFGBuilder took 21994.46 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 35.8 MB in the beginning and 57.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. [2021-10-13 07:06:46,799 INFO L168 Benchmark]: TraceAbstraction took 34341.98 ms. Allocated memory is still 81.8 MB. Free memory was 56.8 MB in the beginning and 61.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. [2021-10-13 07:06:46,799 INFO L168 Benchmark]: Witness Printer took 95.86 ms. Allocated memory is still 81.8 MB. Free memory was 61.4 MB in the beginning and 55.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-13 07:06:46,804 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 60.8 MB. Free memory is still 42.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 455.03 ms. Allocated memory is still 60.8 MB. Free memory was 40.5 MB in the beginning and 40.4 MB in the end (delta: 99.9 kB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.53 ms. Allocated memory is still 60.8 MB. Free memory was 40.4 MB in the beginning and 37.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.72 ms. Allocated memory is still 60.8 MB. Free memory was 37.9 MB in the beginning and 35.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 21994.46 ms. Allocated memory was 60.8 MB in the beginning and 81.8 MB in the end (delta: 21.0 MB). Free memory was 35.8 MB in the beginning and 57.6 MB in the end (delta: -21.8 MB). Peak memory consumption was 17.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 34341.98 ms. Allocated memory is still 81.8 MB. Free memory was 56.8 MB in the beginning and 61.4 MB in the end (delta: -4.6 MB). Peak memory consumption was 24.8 MB. Max. memory is 16.1 GB. * Witness Printer took 95.86 ms. Allocated memory is still 81.8 MB. Free memory was 61.4 MB in the beginning and 55.7 MB in the end (delta: 5.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 176]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 34197.2ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 16.6ms, AutomataDifference: 4494.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 1022.1ms, InitialAbstractionConstructionTime: 10.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 152 SDtfs, 46 SDslu, 126 SDs, 0 SdLazy, 34 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2498.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 110 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 6516.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, InterpolantAutomatonStates: 18, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 44.1ms AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 12 LocationsWithAnnotation, 12 PreInvPairs, 18 NumberOfFragments, 153 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 84.8ms HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 930.7ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 67.3ms SsaConstructionTime, 2477.8ms SatisfiabilityAnalysisTime, 24876.1ms InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 104 ConstructedInterpolants, 30 QuantifiedInterpolants, 636 SizeOfPredicates, 17 NumberOfNonLiveVariables, 275 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 152]: Loop Invariant [2021-10-13 07:06:46,823 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,823 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,824 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,824 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 51]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 161]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 26]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant [2021-10-13 07:06:46,825 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,826 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,826 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,827 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,827 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 107]: Loop Invariant [2021-10-13 07:06:46,828 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,829 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,830 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,835 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,835 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,836 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,836 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,837 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,838 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,838 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,838 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,839 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,839 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 150]: Loop Invariant [2021-10-13 07:06:46,840 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,840 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,841 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,841 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((aux-x < 0 && isfinite_float(x)-aux && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 147]: Loop Invariant [2021-10-13 07:06:46,842 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,842 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,842 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,843 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,843 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,843 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,843 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,843 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,843 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,844 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,844 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,844 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,845 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,845 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,845 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_log10f_~x,QUANTIFIED] [2021-10-13 07:06:46,845 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2021-10-13 07:06:46,845 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-10-13 07:06:46,846 WARN L418 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: ((((((\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]), ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32))) && ~to_fp~LONGDOUBLE(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE()) == zero) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && (\exists ULTIMATE.start___ieee754_log10f_~x : C_FLOAT :: ~fp.div~FLOAT(~roundNearestTiesToEven, ~fp.sub~FLOAT(~roundNearestTiesToEven, ULTIMATE.start___ieee754_log10f_~x, ULTIMATE.start___ieee754_log10f_~x), ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE())) == \result)) && (\exists currentRoundingMode : FloatRoundingMode :: ~fp.lt~FLOAT(x, ~to_fp~LONGDOUBLE(currentRoundingMode, 0bv32)))) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven) && 1bv32 == \result RESULT: Ultimate proved your program to be correct! [2021-10-13 07:06:46,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_78f1b3de-6037-4b05-9ff2-e2da3c7dba78/bin/utaipan-q2qaUkNPG8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...