./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:22:42,327 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:22:42,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:22:42,364 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:22:42,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:22:42,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:22:42,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:22:42,370 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:22:42,372 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:22:42,373 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:22:42,374 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:22:42,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:22:42,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:22:42,378 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:22:42,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:22:42,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:22:42,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:22:42,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:22:42,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:22:42,391 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:22:42,393 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:22:42,399 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:22:42,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:22:42,402 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:22:42,406 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:22:42,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:22:42,407 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:22:42,408 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:22:42,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:22:42,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:22:42,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:22:42,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:22:42,418 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:22:42,419 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:22:42,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:22:42,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:22:42,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:22:42,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:22:42,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:22:42,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:22:42,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:22:42,427 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 07:22:42,472 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:22:42,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:22:42,473 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:22:42,473 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:22:42,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:22:42,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:22:42,475 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:22:42,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:22:42,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:22:42,476 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 07:22:42,477 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:22:42,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:22:42,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:22:42,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:22:42,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:22:42,478 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:22:42,478 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:22:42,478 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:22:42,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:22:42,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:22:42,479 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:22:42,479 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:22:42,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:22:42,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:22:42,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:22:42,480 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:22:42,480 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 07:22:42,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 07:22:42,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:22:42,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:22:42,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:22:42,481 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:22:42,481 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2021-11-07 07:22:42,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:22:42,764 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:22:42,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:22:42,767 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:22:42,770 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:22:42,771 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 07:22:42,861 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/5d95d8eb0/a0494a512ecb44b7890dee2aa9ac3a70/FLAGe320a4d08 [2021-11-07 07:22:43,446 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:22:43,448 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 07:22:43,460 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/5d95d8eb0/a0494a512ecb44b7890dee2aa9ac3a70/FLAGe320a4d08 [2021-11-07 07:22:43,807 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/5d95d8eb0/a0494a512ecb44b7890dee2aa9ac3a70 [2021-11-07 07:22:43,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:22:43,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:22:43,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:22:43,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:22:43,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:22:43,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:43" (1/1) ... [2021-11-07 07:22:43,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@206f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:43, skipping insertion in model container [2021-11-07 07:22:43,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:43" (1/1) ... [2021-11-07 07:22:43,833 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:22:43,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:22:44,082 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_5c145397-5f0d-4c91-b97c-7d17439c85fd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 07:22:44,085 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:22:44,094 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:22:44,116 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_5c145397-5f0d-4c91-b97c-7d17439c85fd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 07:22:44,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:22:44,132 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:22:44,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44 WrapperNode [2021-11-07 07:22:44,133 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:22:44,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:22:44,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:22:44,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:22:44,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,152 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,175 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:22:44,176 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:22:44,176 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:22:44,176 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:22:44,185 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,188 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,188 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,196 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,200 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,201 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,204 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:22:44,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:22:44,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:22:44,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:22:44,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (1/1) ... [2021-11-07 07:22:44,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:22:44,226 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:22:44,242 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:22:44,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:22:44,290 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 07:22:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:22:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 07:22:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 07:22:44,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-07 07:22:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:22:44,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:22:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 07:22:44,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:22:44,537 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:22:44,537 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-07 07:22:44,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:44 BoogieIcfgContainer [2021-11-07 07:22:44,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:22:44,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:22:44,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:22:44,545 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:22:44,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:22:43" (1/3) ... [2021-11-07 07:22:44,546 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646ca62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:44, skipping insertion in model container [2021-11-07 07:22:44,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:44" (2/3) ... [2021-11-07 07:22:44,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7646ca62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:44, skipping insertion in model container [2021-11-07 07:22:44,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:44" (3/3) ... [2021-11-07 07:22:44,548 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2021-11-07 07:22:44,553 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:22:44,554 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:22:44,602 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:22:44,609 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:22:44,609 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:22:44,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:44,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 07:22:44,630 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:44,631 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:44,631 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:22:44,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:44,637 INFO L85 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2021-11-07 07:22:44,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:44,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604491845] [2021-11-07 07:22:44,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:44,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:44,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:44,851 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 07:22:44,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604491845] [2021-11-07 07:22:44,853 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604491845] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:44,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:44,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 07:22:44,857 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755645556] [2021-11-07 07:22:44,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:22:44,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 07:22:44,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:22:44,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:22:44,889 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:44,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:44,905 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2021-11-07 07:22:44,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:22:44,908 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 07:22:44,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:44,916 INFO L225 Difference]: With dead ends: 32 [2021-11-07 07:22:44,916 INFO L226 Difference]: Without dead ends: 14 [2021-11-07 07:22:44,920 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:22:44,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-07 07:22:44,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-07 07:22:44,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:44,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-07 07:22:44,954 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2021-11-07 07:22:44,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:44,955 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-07 07:22:44,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:44,956 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-07 07:22:44,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 07:22:44,957 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:44,958 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:44,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 07:22:44,958 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:22:44,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:44,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2021-11-07 07:22:44,963 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 07:22:44,963 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788399769] [2021-11-07 07:22:44,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:44,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 07:22:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:22:45,035 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 07:22:45,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 07:22:45,088 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 07:22:45,088 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 07:22:45,090 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:22:45,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 07:22:45,095 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 07:22:45,098 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:22:45,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:22:45 BoogieIcfgContainer [2021-11-07 07:22:45,135 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:22:45,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:22:45,137 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:22:45,137 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:22:45,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:44" (3/4) ... [2021-11-07 07:22:45,141 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 07:22:45,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:22:45,145 INFO L168 Benchmark]: Toolchain (without parser) took 1327.95 ms. Allocated memory is still 125.8 MB. Free memory was 92.9 MB in the beginning and 63.2 MB in the end (delta: 29.7 MB). Peak memory consumption was 28.3 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:45,146 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 92.3 MB. Free memory is still 50.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:22:45,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.98 ms. Allocated memory is still 125.8 MB. Free memory was 92.6 MB in the beginning and 101.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:45,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.96 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 99.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:45,156 INFO L168 Benchmark]: Boogie Preprocessor took 28.62 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 98.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:45,157 INFO L168 Benchmark]: RCFGBuilder took 334.43 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 88.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:45,158 INFO L168 Benchmark]: TraceAbstraction took 594.79 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 63.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:45,158 INFO L168 Benchmark]: Witness Printer took 4.86 ms. Allocated memory is still 125.8 MB. Free memory was 63.6 MB in the beginning and 63.2 MB in the end (delta: 348.4 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:45,167 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 92.3 MB. Free memory is still 50.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 315.98 ms. Allocated memory is still 125.8 MB. Free memory was 92.6 MB in the beginning and 101.6 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.96 ms. Allocated memory is still 125.8 MB. Free memory was 101.6 MB in the beginning and 99.9 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 28.62 ms. Allocated memory is still 125.8 MB. Free memory was 99.9 MB in the beginning and 98.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 334.43 ms. Allocated memory is still 125.8 MB. Free memory was 98.6 MB in the beginning and 88.1 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 594.79 ms. Allocated memory is still 125.8 MB. Free memory was 87.7 MB in the beginning and 63.6 MB in the end (delta: 24.1 MB). Peak memory consumption was 21.0 MB. Max. memory is 16.1 GB. * Witness Printer took 4.86 ms. Allocated memory is still 125.8 MB. Free memory was 63.6 MB in the beginning and 63.2 MB in the end (delta: 348.4 kB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: 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 35, overapproximation of bitwiseOr at line 28, overapproximation of someBinaryArithmeticFLOAToperation at line 45. Possible FailurePath: [L45] float x = 0.0f / 0.0f; [L46] float y = __VERIFIER_nondet_float(); [L15] __uint32_t ix, iy; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (ix) = gf_u.word [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (y) [L24] EXPR gf_u.word [L24] (iy) = gf_u.word [L27] ieee_float_shape_type sf_u; [L28] sf_u.word = ((ix & 0x7fffffff) | (iy & 0x80000000)) [L29] EXPR sf_u.value [L29] (x) = sf_u.value [L31] return x; [L47] float res = copysign_float(x, y); [L35] return x != x; [L50] COND TRUE !isnan_float(res) [L51] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 16 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 07:22:45,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 07:22:47,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 07:22:47,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 07:22:47,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 07:22:47,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 07:22:47,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 07:22:47,776 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 07:22:47,779 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 07:22:47,782 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 07:22:47,783 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 07:22:47,784 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 07:22:47,786 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 07:22:47,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 07:22:47,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 07:22:47,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 07:22:47,793 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 07:22:47,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 07:22:47,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 07:22:47,798 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 07:22:47,801 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 07:22:47,804 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 07:22:47,806 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 07:22:47,808 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 07:22:47,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 07:22:47,813 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 07:22:47,814 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 07:22:47,814 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 07:22:47,816 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 07:22:47,816 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 07:22:47,817 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 07:22:47,818 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 07:22:47,819 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 07:22:47,820 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 07:22:47,821 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 07:22:47,841 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 07:22:47,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 07:22:47,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 07:22:47,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 07:22:47,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 07:22:47,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 07:22:47,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 07:22:47,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-07 07:22:47,882 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 07:22:47,887 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 07:22:47,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 07:22:47,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 07:22:47,890 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 07:22:47,891 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 07:22:47,891 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 07:22:47,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 07:22:47,892 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 07:22:47,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 07:22:47,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 07:22:47,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 07:22:47,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 07:22:47,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 07:22:47,895 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 07:22:47,895 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 07:22:47,896 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 07:22:47,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 07:22:47,896 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 07:22:47,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 07:22:47,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 07:22:47,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 07:22:47,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 07:22:47,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:22:47,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 07:22:47,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 07:22:47,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 07:22:47,899 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 07:22:47,899 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 07:22:47,900 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 07:22:47,900 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 07:22:47,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 07:22:47,901 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 07:22:47,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 07:22:47,901 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_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dd343d8c842dca5f2bd703f90ecddcb3075588362c6b6e2ad48689abc1295d4 [2021-11-07 07:22:48,338 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 07:22:48,374 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 07:22:48,378 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 07:22:48,382 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 07:22:48,383 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 07:22:48,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 07:22:48,462 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/29946ca04/15f5563c4b7641aebce1e384a4ab3ad8/FLAG37934b068 [2021-11-07 07:22:49,038 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 07:22:49,039 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c [2021-11-07 07:22:49,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/29946ca04/15f5563c4b7641aebce1e384a4ab3ad8/FLAG37934b068 [2021-11-07 07:22:49,426 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/data/29946ca04/15f5563c4b7641aebce1e384a4ab3ad8 [2021-11-07 07:22:49,430 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 07:22:49,432 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 07:22:49,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 07:22:49,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 07:22:49,441 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 07:22:49,442 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:49,445 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a0bdb58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49, skipping insertion in model container [2021-11-07 07:22:49,445 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:49,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 07:22:49,475 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 07:22:49,742 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_5c145397-5f0d-4c91-b97c-7d17439c85fd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 07:22:49,749 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:22:49,767 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 07:22:49,867 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_5c145397-5f0d-4c91-b97c-7d17439c85fd/sv-benchmarks/c/float-newlib/float_req_bl_1381.c[1242,1255] [2021-11-07 07:22:49,868 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 07:22:49,889 INFO L208 MainTranslator]: Completed translation [2021-11-07 07:22:49,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49 WrapperNode [2021-11-07 07:22:49,890 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 07:22:49,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 07:22:49,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 07:22:49,892 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 07:22:49,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:49,930 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:49,966 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 07:22:49,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 07:22:49,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 07:22:49,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 07:22:49,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:49,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:49,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:49,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:50,018 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:50,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:50,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:50,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 07:22:50,046 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 07:22:50,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 07:22:50,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 07:22:50,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (1/1) ... [2021-11-07 07:22:50,063 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 07:22:50,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 07:22:50,092 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 07:22:50,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 07:22:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 07:22:50,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 07:22:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-07 07:22:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 07:22:50,163 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 07:22:50,163 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 07:22:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-07 07:22:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 07:22:50,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 07:22:50,574 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 07:22:50,574 INFO L299 CfgBuilder]: Removed 14 assume(true) statements. [2021-11-07 07:22:50,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:50 BoogieIcfgContainer [2021-11-07 07:22:50,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 07:22:50,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 07:22:50,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 07:22:50,583 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 07:22:50,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:22:49" (1/3) ... [2021-11-07 07:22:50,584 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399e4efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:50, skipping insertion in model container [2021-11-07 07:22:50,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:49" (2/3) ... [2021-11-07 07:22:50,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@399e4efd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:50, skipping insertion in model container [2021-11-07 07:22:50,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:50" (3/3) ... [2021-11-07 07:22:50,587 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_1381.c [2021-11-07 07:22:50,593 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 07:22:50,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 07:22:50,676 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 07:22:50,687 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-07 07:22:50,688 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 07:22:50,720 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:50,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 07:22:50,727 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:50,728 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:50,728 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:22:50,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:50,735 INFO L85 PathProgramCache]: Analyzing trace with hash 927449971, now seen corresponding path program 1 times [2021-11-07 07:22:50,750 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:22:50,750 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301949841] [2021-11-07 07:22:50,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:50,752 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:22:50,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:22:50,756 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:22:50,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 07:22:50,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:50,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 07:22:50,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:22:50,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:50,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:22:51,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:51,098 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:22:51,098 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1301949841] [2021-11-07 07:22:51,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1301949841] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:51,100 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:51,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 07:22:51,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069130071] [2021-11-07 07:22:51,108 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 07:22:51,124 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:22:51,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 07:22:51,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:22:51,151 INFO L87 Difference]: Start difference. First operand has 17 states, 15 states have (on average 1.5333333333333334) internal successors, (23), 16 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:51,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:51,168 INFO L93 Difference]: Finished difference Result 32 states and 44 transitions. [2021-11-07 07:22:51,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 07:22:51,170 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 07:22:51,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:51,179 INFO L225 Difference]: With dead ends: 32 [2021-11-07 07:22:51,180 INFO L226 Difference]: Without dead ends: 14 [2021-11-07 07:22:51,183 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 07:22:51,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2021-11-07 07:22:51,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2021-11-07 07:22:51,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.0) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:51,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2021-11-07 07:22:51,219 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 10 [2021-11-07 07:22:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:51,219 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2021-11-07 07:22:51,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:51,220 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2021-11-07 07:22:51,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-07 07:22:51,221 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 07:22:51,221 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 07:22:51,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 07:22:51,436 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:22:51,436 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 07:22:51,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 07:22:51,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1499794425, now seen corresponding path program 1 times [2021-11-07 07:22:51,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 07:22:51,448 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1327788099] [2021-11-07 07:22:51,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 07:22:51,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 07:22:51,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 07:22:51,454 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 07:22:51,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 07:22:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 07:22:51,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-07 07:22:51,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 07:22:52,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:52,051 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 07:22:52,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 07:22:52,415 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 07:22:52,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1327788099] [2021-11-07 07:22:52,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1327788099] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 07:22:52,416 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 07:22:52,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2021-11-07 07:22:52,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548550712] [2021-11-07 07:22:52,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-07 07:22:52,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 07:22:52,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-07 07:22:52,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2021-11-07 07:22:52,422 INFO L87 Difference]: Start difference. First operand 14 states and 13 transitions. Second operand has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:53,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 07:22:53,034 INFO L93 Difference]: Finished difference Result 14 states and 13 transitions. [2021-11-07 07:22:53,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-07 07:22:53,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-07 07:22:53,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 07:22:53,035 INFO L225 Difference]: With dead ends: 14 [2021-11-07 07:22:53,035 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 07:22:53,036 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 12 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2021-11-07 07:22:53,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 07:22:53,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 07:22:53,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:53,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 07:22:53,037 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2021-11-07 07:22:53,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 07:22:53,038 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 07:22:53,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.0) internal successors, (24), 12 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 07:22:53,038 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 07:22:53,038 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 07:22:53,047 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 07:22:53,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 07:22:53,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 07:22:53,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 07:22:53,275 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:22:53,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:22:53,322 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:22:53,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 07:22:53,413 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 07:22:53,414 INFO L853 garLoopResultBuilder]: At program point L31(lines 14 32) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_copysign_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (forall ((ULTIMATE.start_copysign_float_~iy~0 (_ BitVec 32))) (not (let ((.cse0 (let ((.cse1 (bvor (bvand (_ bv2147483647 32) ULTIMATE.start_copysign_float_~ix~0) (bvand (_ bv2147483648 32) ULTIMATE.start_copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0)))) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2021-11-07 07:22:53,414 INFO L857 garLoopResultBuilder]: For program point L21(lines 21 25) no Hoare annotation was computed. [2021-11-07 07:22:53,414 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 14 32) no Hoare annotation was computed. [2021-11-07 07:22:53,414 INFO L857 garLoopResultBuilder]: For program point L50(lines 50 53) no Hoare annotation was computed. [2021-11-07 07:22:53,415 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 07:22:53,415 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 07:22:53,415 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 07:22:53,415 INFO L857 garLoopResultBuilder]: For program point L26(lines 26 30) no Hoare annotation was computed. [2021-11-07 07:22:53,416 INFO L857 garLoopResultBuilder]: For program point L26-1(lines 14 32) no Hoare annotation was computed. [2021-11-07 07:22:53,416 INFO L857 garLoopResultBuilder]: For program point L26-2(lines 26 30) no Hoare annotation was computed. [2021-11-07 07:22:53,416 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 51) no Hoare annotation was computed. [2021-11-07 07:22:53,416 INFO L860 garLoopResultBuilder]: At program point L55(lines 37 56) the Hoare annotation is: true [2021-11-07 07:22:53,417 INFO L857 garLoopResultBuilder]: For program point L51(line 51) no Hoare annotation was computed. [2021-11-07 07:22:53,417 INFO L857 garLoopResultBuilder]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2021-11-07 07:22:53,417 INFO L853 garLoopResultBuilder]: At program point L16-2(lines 16 20) the Hoare annotation is: (not (fp.eq ULTIMATE.start_copysign_float_~x ULTIMATE.start_copysign_float_~x)) [2021-11-07 07:22:53,417 INFO L853 garLoopResultBuilder]: At program point L35(line 35) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_copysign_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (forall ((ULTIMATE.start_copysign_float_~iy~0 (_ BitVec 32))) (not (let ((.cse0 (let ((.cse1 (bvor (bvand (_ bv2147483647 32) ULTIMATE.start_copysign_float_~ix~0) (bvand (_ bv2147483648 32) ULTIMATE.start_copysign_float_~iy~0)))) (fp ((_ extract 31 31) .cse1) ((_ extract 30 23) .cse1) ((_ extract 22 0) .cse1))))) (fp.eq .cse0 .cse0)))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq |ULTIMATE.start_copysign_float_#res| |ULTIMATE.start_copysign_float_#res|))) [2021-11-07 07:22:53,422 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 07:22:53,424 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 07:22:53,438 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,439 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,440 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,441 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,444 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,445 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,446 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,447 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,448 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,449 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,450 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,451 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,452 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:22:53 BoogieIcfgContainer [2021-11-07 07:22:53,454 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 07:22:53,455 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 07:22:53,455 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 07:22:53,456 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 07:22:53,456 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:50" (3/4) ... [2021-11-07 07:22:53,462 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 07:22:53,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 07:22:53,480 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-07 07:22:53,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-07 07:22:53,481 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 07:22:53,535 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 07:22:53,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 07:22:53,540 INFO L168 Benchmark]: Toolchain (without parser) took 4106.39 ms. Allocated memory was 77.6 MB in the beginning and 111.1 MB in the end (delta: 33.6 MB). Free memory was 42.5 MB in the beginning and 76.4 MB in the end (delta: -33.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:53,541 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:22:53,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.11 ms. Allocated memory is still 77.6 MB. Free memory was 42.2 MB in the beginning and 61.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:53,543 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.65 ms. Allocated memory is still 77.6 MB. Free memory was 60.9 MB in the beginning and 59.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 07:22:53,543 INFO L168 Benchmark]: Boogie Preprocessor took 77.41 ms. Allocated memory is still 77.6 MB. Free memory was 59.2 MB in the beginning and 57.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:53,544 INFO L168 Benchmark]: RCFGBuilder took 530.68 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 46.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:53,551 INFO L168 Benchmark]: TraceAbstraction took 2875.40 ms. Allocated memory was 77.6 MB in the beginning and 111.1 MB in the end (delta: 33.6 MB). Free memory was 46.2 MB in the beginning and 78.5 MB in the end (delta: -32.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:53,552 INFO L168 Benchmark]: Witness Printer took 83.13 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 07:22:53,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 77.6 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 454.11 ms. Allocated memory is still 77.6 MB. Free memory was 42.2 MB in the beginning and 61.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.65 ms. Allocated memory is still 77.6 MB. Free memory was 60.9 MB in the beginning and 59.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 77.41 ms. Allocated memory is still 77.6 MB. Free memory was 59.2 MB in the beginning and 57.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 530.68 ms. Allocated memory is still 77.6 MB. Free memory was 57.9 MB in the beginning and 46.6 MB in the end (delta: 11.3 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 2875.40 ms. Allocated memory was 77.6 MB in the beginning and 111.1 MB in the end (delta: 33.6 MB). Free memory was 46.2 MB in the beginning and 78.5 MB in the end (delta: -32.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Witness Printer took 83.13 ms. Allocated memory is still 111.1 MB. Free memory was 78.5 MB in the beginning and 76.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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 Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - 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[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - 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[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - 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[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 51]: 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, 17 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 22 SDtfs, 14 SDslu, 24 SDs, 0 SdLazy, 20 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 30 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 138 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 42 ConstructedInterpolants, 12 QuantifiedInterpolants, 344 SizeOfPredicates, 16 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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: 16]: Loop Invariant Derived loop invariant: !~fp.eq~FLOAT(x, x) - InvariantResult [Line: 14]: Loop Invariant [2021-11-07 07:22:53,579 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,579 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,579 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,580 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,581 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,582 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,583 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,584 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] Derived loop invariant: ((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (forall ULTIMATE.start_copysign_float_~iy~0 : bv32 :: !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0]), ~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0])))) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 35]: Loop Invariant [2021-11-07 07:22:53,594 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,594 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,594 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,595 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,596 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,598 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2021-11-07 07:22:53,599 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,600 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,601 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] [2021-11-07 07:22:53,602 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_copysign_float_~iy~0,QUANTIFIED] Derived loop invariant: (((\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (forall ULTIMATE.start_copysign_float_~iy~0 : bv32 :: !~fp.eq~FLOAT(~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0]), ~fp~LONGDOUBLE(~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[31:31], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[30:23], ~bvor32(~bvand32(2147483647bv32, ix), ~bvand32(2147483648bv32, ULTIMATE.start_copysign_float_~iy~0))[22:0])))) && 1bv32 == \result) && !~fp.eq~FLOAT(\result, \result) - InvariantResult [Line: 37]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-07 07:22:53,654 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5c145397-5f0d-4c91-b97c-7d17439c85fd/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE