./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0662a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0662a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX --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 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:33:41,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:33:41,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:33:41,386 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:33:41,387 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:33:41,388 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:33:41,390 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:33:41,392 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:33:41,395 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:33:41,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:33:41,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:33:41,399 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:33:41,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:33:41,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:33:41,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:33:41,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:33:41,405 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:33:41,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:33:41,408 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:33:41,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:33:41,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:33:41,414 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:33:41,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:33:41,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:33:41,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:33:41,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:33:41,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:33:41,423 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:33:41,424 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:33:41,425 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:33:41,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:33:41,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:33:41,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:33:41,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:33:41,430 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:33:41,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:33:41,431 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:33:41,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:33:41,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:33:41,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:33:41,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:33:41,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:33:41,459 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:33:41,459 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:33:41,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:33:41,460 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:33:41,461 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:33:41,474 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:33:41,474 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:33:41,474 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:33:41,474 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:33:41,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:33:41,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:33:41,475 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:33:41,475 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:33:41,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:33:41,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:33:41,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:33:41,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:33:41,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:33:41,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:33:41,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:33:41,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:33:41,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:33:41,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:33:41,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:33:41,478 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:33:41,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:33:41,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:33:41,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:33:41,480 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:33:41,480 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:33:41,480 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:33:41,480 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:33:41,481 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_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c [2021-11-09 09:33:41,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:33:41,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:33:41,839 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:33:41,840 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:33:41,841 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:33:41,842 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2021-11-09 09:33:41,912 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/8d3e681ba/654847a5a2ac4279b07b8e5f14b397a4/FLAG7c56e677f [2021-11-09 09:33:42,435 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:33:42,435 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2021-11-09 09:33:42,445 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/8d3e681ba/654847a5a2ac4279b07b8e5f14b397a4/FLAG7c56e677f [2021-11-09 09:33:42,781 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/8d3e681ba/654847a5a2ac4279b07b8e5f14b397a4 [2021-11-09 09:33:42,784 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:33:42,785 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:33:42,787 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:42,787 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:33:42,791 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:33:42,792 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:42" (1/1) ... [2021-11-09 09:33:42,793 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@167eeb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:42, skipping insertion in model container [2021-11-09 09:33:42,793 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:42" (1/1) ... [2021-11-09 09:33:42,808 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:33:42,838 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:33:43,080 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_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c[6225,6238] [2021-11-09 09:33:43,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:43,105 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:33:43,225 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_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c[6225,6238] [2021-11-09 09:33:43,226 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:43,248 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:33:43,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43 WrapperNode [2021-11-09 09:33:43,248 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:43,249 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:43,249 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:33:43,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:33:43,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,267 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:43,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:33:43,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:33:43,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:33:43,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:33:43,423 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:33:43,424 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:33:43,424 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:33:43,427 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (1/1) ... [2021-11-09 09:33:43,435 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:33:43,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:33:43,463 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:33:43,493 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:33:43,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:33:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:33:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-09 09:33:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 09:33:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-09 09:33:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:33:43,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:33:43,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:33:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-09 09:33:43,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:33:44,287 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:33:44,287 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-09 09:33:44,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:44 BoogieIcfgContainer [2021-11-09 09:33:44,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:33:44,292 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:33:44,292 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:33:44,296 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:33:44,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:33:42" (1/3) ... [2021-11-09 09:33:44,297 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5773c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:33:44, skipping insertion in model container [2021-11-09 09:33:44,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:43" (2/3) ... [2021-11-09 09:33:44,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5773c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:33:44, skipping insertion in model container [2021-11-09 09:33:44,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:44" (3/3) ... [2021-11-09 09:33:44,299 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662a.c [2021-11-09 09:33:44,305 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:33:44,305 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 09:33:44,356 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:33:44,362 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 [2021-11-09 09:33:44,363 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 09:33:44,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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) [2021-11-09 09:33:44,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 09:33:44,387 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:33:44,388 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:44,389 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:33:44,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-11-09 09:33:44,404 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:44,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624245378] [2021-11-09 09:33:44,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:44,406 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:44,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:33:44,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:33:44,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:33:44,584 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624245378] [2021-11-09 09:33:44,585 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624245378] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:33:44,585 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:33:44,585 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:33:44,587 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439898048] [2021-11-09 09:33:44,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:33:44,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:33:44,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:33:44,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:33:44,609 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:44,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:33:44,639 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-11-09 09:33:44,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:33:44,641 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 09:33:44,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:33:44,652 INFO L225 Difference]: With dead ends: 227 [2021-11-09 09:33:44,652 INFO L226 Difference]: Without dead ends: 111 [2021-11-09 09:33:44,655 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 [2021-11-09 09:33:44,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-09 09:33:44,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-09 09:33:44,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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) [2021-11-09 09:33:44,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-11-09 09:33:44,697 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-11-09 09:33:44,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:33:44,698 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-09 09:33:44,698 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:33:44,698 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-11-09 09:33:44,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-09 09:33:44,699 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:33:44,699 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:33:44,700 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:33:44,700 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:33:44,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:33:44,701 INFO L85 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-11-09 09:33:44,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:33:44,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145566243] [2021-11-09 09:33:44,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:33:44,702 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:33:44,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:44,782 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:33:44,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:33:44,882 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:44,883 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 09:33:44,885 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:33:44,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:33:44,890 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 09:33:44,893 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:33:44,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 09:33:44 BoogieIcfgContainer [2021-11-09 09:33:44,970 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 09:33:44,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:33:44,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:33:44,972 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:33:44,974 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:33:44" (3/4) ... [2021-11-09 09:33:44,976 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 09:33:44,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:33:44,978 INFO L168 Benchmark]: Toolchain (without parser) took 2191.69 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 49.5 MB in the beginning and 56.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 16.1 GB. [2021-11-09 09:33:44,978 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:33:44,979 INFO L168 Benchmark]: CACSL2BoogieTranslator took 461.72 ms. Allocated memory is still 92.3 MB. Free memory was 49.3 MB in the beginning and 63.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:33:44,980 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.17 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 60.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:33:44,980 INFO L168 Benchmark]: Boogie Preprocessor took 89.61 ms. Allocated memory is still 92.3 MB. Free memory was 60.1 MB in the beginning and 57.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:33:44,981 INFO L168 Benchmark]: RCFGBuilder took 866.65 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 56.8 MB in the beginning and 93.1 MB in the end (delta: -36.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-11-09 09:33:44,982 INFO L168 Benchmark]: TraceAbstraction took 678.40 ms. Allocated memory is still 121.6 MB. Free memory was 92.4 MB in the beginning and 56.0 MB in the end (delta: 36.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:33:44,982 INFO L168 Benchmark]: Witness Printer took 5.35 ms. Allocated memory is still 121.6 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:33:44,986 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 461.72 ms. Allocated memory is still 92.3 MB. Free memory was 49.3 MB in the beginning and 63.4 MB in the end (delta: -14.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.17 ms. Allocated memory is still 92.3 MB. Free memory was 63.4 MB in the beginning and 60.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 89.61 ms. Allocated memory is still 92.3 MB. Free memory was 60.1 MB in the beginning and 57.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 866.65 ms. Allocated memory was 92.3 MB in the beginning and 121.6 MB in the end (delta: 29.4 MB). Free memory was 56.8 MB in the beginning and 93.1 MB in the end (delta: -36.4 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 678.40 ms. Allocated memory is still 121.6 MB. Free memory was 92.4 MB in the beginning and 56.0 MB in the end (delta: 36.4 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Witness Printer took 5.35 ms. Allocated memory is still 121.6 MB. Free memory is still 56.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 262]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 164, overapproximation of someUnaryDOUBLEoperation at line 253, overapproximation of bitwiseAnd at line 162, overapproximation of someBinaryArithmeticDOUBLEoperation at line 165, overapproximation of someBinaryDOUBLEComparisonOperation at line 261. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L141-L142] static const double tiny_atan2 = 1.0e-300, zero_atan2 = 0.0, pi_lo_atan2 = 1.2246467991473531772E-16; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L253] double x = -0.0; [L254] double y = __VERIFIER_nondet_double(); [L256] COND TRUE y < 0.0 [L145] double z; [L146] __int32_t k, m, hx, hy, ix, iy; [L147] __uint32_t lx, ly; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L150] ieee_double_shape_type ew_u; [L151] ew_u.value = (x) [L152] EXPR ew_u.parts.msw [L152] (hx) = ew_u.parts.msw [L153] EXPR ew_u.parts.lsw [L153] (lx) = ew_u.parts.lsw [L155] ix = hx & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L157] ieee_double_shape_type ew_u; [L158] ew_u.value = (y) [L159] EXPR ew_u.parts.msw [L159] (hy) = ew_u.parts.msw [L160] EXPR ew_u.parts.lsw [L160] (ly) = ew_u.parts.lsw [L162] iy = hy & 0x7fffffff VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L163-L164] COND TRUE ((ix | ((lx | -lx) >> 31)) > 0x7ff00000) || ((iy | ((ly | -ly) >> 31)) > 0x7ff00000) [L165] return x + y; VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L258] double res = __ieee754_atan2(y, x); [L261] COND TRUE res != -pi_o_2 VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] [L262] reach_error() VAL [aT_atan={6:0}, atanhi_atan={9:0}, atanlo_atan={7:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_lo_atan2=3061616997868382943/25000000000000000000000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, tiny_atan2=1/1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, zero_atan2=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 115 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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: 164 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=115occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 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 [2021-11-09 09:33:45,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/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_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0662a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX --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 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:33:47,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:33:47,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:33:47,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:33:47,564 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:33:47,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:33:47,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:33:47,581 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:33:47,585 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:33:47,593 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:33:47,594 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:33:47,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:33:47,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:33:47,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:33:47,601 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:33:47,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:33:47,609 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:33:47,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:33:47,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:33:47,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:33:47,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:33:47,625 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:33:47,628 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:33:47,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:33:47,637 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:33:47,637 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:33:47,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:33:47,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:33:47,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:33:47,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:33:47,642 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:33:47,643 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:33:47,645 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:33:47,646 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:33:47,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:33:47,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:33:47,650 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:33:47,650 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:33:47,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:33:47,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:33:47,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:33:47,655 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 09:33:47,702 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:33:47,703 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:33:47,704 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:33:47,704 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:33:47,706 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:33:47,706 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:33:47,707 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:33:47,707 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:33:47,707 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:33:47,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:33:47,708 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:33:47,709 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:33:47,709 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:33:47,709 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:33:47,709 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 09:33:47,710 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 09:33:47,710 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:33:47,710 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:33:47,710 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:33:47,711 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:33:47,711 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:33:47,711 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:33:47,711 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:33:47,712 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:33:47,712 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:33:47,712 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:33:47,712 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:33:47,712 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 09:33:47,713 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 09:33:47,713 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:33:47,713 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:33:47,713 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:33:47,714 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:33:47,714 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 09:33:47,714 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_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ab31643130fe59fd572e1c725f7ce4686b4f219c563d19cc3c93d88df427f8c [2021-11-09 09:33:48,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:33:48,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:33:48,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:33:48,212 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:33:48,213 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:33:48,214 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2021-11-09 09:33:48,290 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/b13348cbe/aa63071ac7d549df8b54f6552a1fd69d/FLAG8abeb7e31 [2021-11-09 09:33:48,883 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:33:48,883 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c [2021-11-09 09:33:48,898 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/b13348cbe/aa63071ac7d549df8b54f6552a1fd69d/FLAG8abeb7e31 [2021-11-09 09:33:49,209 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/data/b13348cbe/aa63071ac7d549df8b54f6552a1fd69d [2021-11-09 09:33:49,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:33:49,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:33:49,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:49,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:33:49,220 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:33:49,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,222 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f2b6d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49, skipping insertion in model container [2021-11-09 09:33:49,223 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,230 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:33:49,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:33:49,524 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_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c[6225,6238] [2021-11-09 09:33:49,573 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:49,615 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:33:49,720 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_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/sv-benchmarks/c/float-newlib/double_req_bl_0662a.c[6225,6238] [2021-11-09 09:33:49,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:33:49,766 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:33:49,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49 WrapperNode [2021-11-09 09:33:49,767 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:33:49,769 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:49,769 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:33:49,769 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:33:49,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:33:49,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:33:49,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:33:49,838 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:33:49,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,854 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,889 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,900 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:33:49,902 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:33:49,902 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:33:49,903 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:33:49,903 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (1/1) ... [2021-11-09 09:33:49,924 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:33:49,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:33:49,959 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:33:49,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:33:50,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2021-11-09 09:33:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2021-11-09 09:33:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 09:33:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:33:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2021-11-09 09:33:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-09 09:33:50,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:33:50,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:33:50,012 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-09 09:33:50,013 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:34:28,640 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:34:28,641 INFO L299 CfgBuilder]: Removed 44 assume(true) statements. [2021-11-09 09:34:28,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:28 BoogieIcfgContainer [2021-11-09 09:34:28,644 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:34:28,646 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:34:28,646 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:34:28,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:34:28,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:33:49" (1/3) ... [2021-11-09 09:34:28,651 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6203251c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:28, skipping insertion in model container [2021-11-09 09:34:28,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:33:49" (2/3) ... [2021-11-09 09:34:28,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6203251c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:34:28, skipping insertion in model container [2021-11-09 09:34:28,652 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:34:28" (3/3) ... [2021-11-09 09:34:28,654 INFO L111 eAbstractionObserver]: Analyzing ICFG double_req_bl_0662a.c [2021-11-09 09:34:28,663 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:34:28,664 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 09:34:28,719 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:34:28,726 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 [2021-11-09 09:34:28,726 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 09:34:28,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 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) [2021-11-09 09:34:28,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 09:34:28,754 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:28,755 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:28,755 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:34:28,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:28,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1059427896, now seen corresponding path program 1 times [2021-11-09 09:34:28,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:34:28,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [398072393] [2021-11-09 09:34:28,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:28,775 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:34:28,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:34:28,778 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:34:28,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 09:34:29,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:29,245 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 09:34:29,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:29,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:29,506 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:34:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:29,764 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:34:29,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [398072393] [2021-11-09 09:34:29,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [398072393] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:34:29,766 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:34:29,766 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 09:34:29,768 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834435960] [2021-11-09 09:34:29,772 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:34:29,773 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:34:29,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:34:29,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:34:29,793 INFO L87 Difference]: Start difference. First operand has 115 states, 113 states have (on average 1.7079646017699115) internal successors, (193), 114 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:29,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:34:29,848 INFO L93 Difference]: Finished difference Result 227 states and 382 transitions. [2021-11-09 09:34:29,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:34:29,851 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 09:34:29,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:34:29,867 INFO L225 Difference]: With dead ends: 227 [2021-11-09 09:34:29,867 INFO L226 Difference]: Without dead ends: 111 [2021-11-09 09:34:29,872 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:34:29,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2021-11-09 09:34:29,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2021-11-09 09:34:29,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 110 states have (on average 1.4454545454545455) internal successors, (159), 110 states have internal predecessors, (159), 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) [2021-11-09 09:34:29,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 159 transitions. [2021-11-09 09:34:29,916 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 159 transitions. Word has length 11 [2021-11-09 09:34:29,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:34:29,916 INFO L470 AbstractCegarLoop]: Abstraction has 111 states and 159 transitions. [2021-11-09 09:34:29,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:34:29,917 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 159 transitions. [2021-11-09 09:34:29,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-09 09:34:29,918 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:34:29,918 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:34:29,943 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-09 09:34:30,138 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:34:30,139 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:34:30,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:34:30,140 INFO L85 PathProgramCache]: Analyzing trace with hash -7417919, now seen corresponding path program 1 times [2021-11-09 09:34:30,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:34:30,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [873891456] [2021-11-09 09:34:30,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:34:30,141 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:34:30,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:34:30,144 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:34:30,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c3ea17b-20d2-43f3-a2e8-0129b67ac4df/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 09:34:30,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:34:30,694 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 09:34:30,697 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:34:31,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 34 [2021-11-09 09:34:34,314 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:34:34,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 64 [2021-11-09 09:34:34,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 14 [2021-11-09 09:34:39,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:34:39,007 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:34:43,237 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:34:43,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 100 treesize of output 92 [2021-11-09 09:34:43,395 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-09 09:34:43,396 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 92 treesize of output 92 [2021-11-09 09:34:43,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11