./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:38:26,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:38:26,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:38:26,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:38:26,975 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:38:26,976 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:38:26,978 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:38:26,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:38:26,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:38:26,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:38:26,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:38:26,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:38:26,986 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:38:26,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:38:26,989 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:38:26,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:38:26,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:38:26,992 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:38:26,994 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:38:26,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:38:26,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:38:27,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:38:27,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:38:27,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:38:27,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:38:27,006 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:38:27,007 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:38:27,008 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:38:27,008 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:38:27,009 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:38:27,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:38:27,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:38:27,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:38:27,012 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:38:27,013 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:38:27,014 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:38:27,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:38:27,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:38:27,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:38:27,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:38:27,017 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:38:27,019 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:38:27,044 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:38:27,044 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:38:27,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:38:27,045 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:38:27,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:38:27,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:38:27,046 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:38:27,046 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:38:27,046 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:38:27,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:38:27,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:38:27,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:38:27,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:38:27,047 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:38:27,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:38:27,048 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:38:27,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:38:27,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:38:27,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:38:27,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:38:27,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:38:27,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:38:27,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:38:27,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:38:27,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:38:27,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:38:27,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:38:27,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:38:27,051 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:38:27,051 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:38:27,051 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:38:27,051 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:38:27,051 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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2021-11-07 08:38:27,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:38:27,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:38:27,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:38:27,325 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:38:27,326 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:38:27,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-11-07 08:38:27,401 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/692ce00e4/37ca14d651094d4eba657fbd91f1cdf4/FLAGddc6d8caa [2021-11-07 08:38:27,804 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:38:27,805 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-11-07 08:38:27,811 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/692ce00e4/37ca14d651094d4eba657fbd91f1cdf4/FLAGddc6d8caa [2021-11-07 08:38:27,832 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/692ce00e4/37ca14d651094d4eba657fbd91f1cdf4 [2021-11-07 08:38:27,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:38:27,835 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:38:27,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:27,840 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:38:27,843 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:38:27,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:27" (1/1) ... [2021-11-07 08:38:27,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57bb78a1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:27, skipping insertion in model container [2021-11-07 08:38:27,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:27" (1/1) ... [2021-11-07 08:38:27,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:38:27,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:38:28,124 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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-11-07 08:38:28,128 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:28,144 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:38:28,169 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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-11-07 08:38:28,169 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:28,183 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:38:28,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28 WrapperNode [2021-11-07 08:38:28,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:28,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:28,185 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:38:28,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:38:28,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,203 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,228 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:28,229 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:38:28,229 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:38:28,229 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:38:28,237 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:38:28,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:38:28,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:38:28,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:38:28,280 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (1/1) ... [2021-11-07 08:38:28,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:38:28,300 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:28,310 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:28,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:38:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:38:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:38:28,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-07 08:38:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:38:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-11-07 08:38:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:38:28,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:38:28,345 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:38:28,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:38:28,697 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:38:28,698 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-07 08:38:28,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:28 BoogieIcfgContainer [2021-11-07 08:38:28,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:38:28,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:38:28,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:38:28,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:38:28,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:38:27" (1/3) ... [2021-11-07 08:38:28,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9b1df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:38:28, skipping insertion in model container [2021-11-07 08:38:28,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:28" (2/3) ... [2021-11-07 08:38:28,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d9b1df5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:38:28, skipping insertion in model container [2021-11-07 08:38:28,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:28" (3/3) ... [2021-11-07 08:38:28,721 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2021-11-07 08:38:28,727 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:38:28,727 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:38:28,766 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:38:28,772 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 08:38:28,772 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:38:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 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 08:38:28,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 08:38:28,791 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:38:28,791 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:28,792 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:38:28,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:28,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-11-07 08:38:28,806 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:28,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066620029] [2021-11-07 08:38:28,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:28,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:28,979 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 08:38:28,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:38:28,979 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066620029] [2021-11-07 08:38:28,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066620029] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:38:28,980 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:38:28,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:38:28,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551307528] [2021-11-07 08:38:28,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:38:28,987 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:38:28,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:38:28,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:38:29,001 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:29,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:38:29,018 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-11-07 08:38:29,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:38:29,019 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 08:38:29,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:38:29,028 INFO L225 Difference]: With dead ends: 72 [2021-11-07 08:38:29,028 INFO L226 Difference]: Without dead ends: 34 [2021-11-07 08:38:29,030 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 08:38:29,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-07 08:38:29,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-07 08:38:29,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 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 08:38:29,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-11-07 08:38:29,058 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-11-07 08:38:29,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:38:29,058 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-11-07 08:38:29,059 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:29,059 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-11-07 08:38:29,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 08:38:29,059 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:38:29,060 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:29,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:38:29,060 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:38:29,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:29,061 INFO L85 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-11-07 08:38:29,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:38:29,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770914779] [2021-11-07 08:38:29,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:29,062 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:38:29,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:29,103 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:38:29,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:38:29,149 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:38:29,149 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 08:38:29,151 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:38:29,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:38:29,156 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-07 08:38:29,158 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:38:29,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:38:29 BoogieIcfgContainer [2021-11-07 08:38:29,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:38:29,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:38:29,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:38:29,183 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:38:29,184 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:28" (3/4) ... [2021-11-07 08:38:29,186 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-07 08:38:29,186 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:38:29,188 INFO L168 Benchmark]: Toolchain (without parser) took 1352.06 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.8 MB in the beginning and 68.3 MB in the end (delta: -19.5 MB). Peak memory consumption was 973.6 kB. Max. memory is 16.1 GB. [2021-11-07 08:38:29,189 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 65.5 MB in the beginning and 65.5 MB in the end (delta: 39.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:29,190 INFO L168 Benchmark]: CACSL2BoogieTranslator took 344.05 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 79.6 MB in the end (delta: -31.0 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:29,191 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.56 ms. Allocated memory is still 104.9 MB. Free memory was 79.6 MB in the beginning and 77.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:29,191 INFO L168 Benchmark]: Boogie Preprocessor took 42.42 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 76.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:29,192 INFO L168 Benchmark]: RCFGBuilder took 423.55 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 63.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:29,192 INFO L168 Benchmark]: TraceAbstraction took 480.87 ms. Allocated memory is still 104.9 MB. Free memory was 62.5 MB in the beginning and 68.7 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:29,193 INFO L168 Benchmark]: Witness Printer took 3.80 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 68.3 MB in the end (delta: 455.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:29,199 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 86.0 MB. Free memory was 65.5 MB in the beginning and 65.5 MB in the end (delta: 39.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 344.05 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 48.6 MB in the beginning and 79.6 MB in the end (delta: -31.0 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.56 ms. Allocated memory is still 104.9 MB. Free memory was 79.6 MB in the beginning and 77.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.42 ms. Allocated memory is still 104.9 MB. Free memory was 77.7 MB in the beginning and 76.2 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 423.55 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 63.0 MB in the end (delta: 13.2 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 480.87 ms. Allocated memory is still 104.9 MB. Free memory was 62.5 MB in the beginning and 68.7 MB in the end (delta: -6.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 3.80 ms. Allocated memory is still 104.9 MB. Free memory was 68.7 MB in the beginning and 68.3 MB in the end (delta: 455.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s 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: 108]: 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 107, overapproximation of bitwiseAnd at line 26, overapproximation of someUnaryFLOAToperation at line 103, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L103] float x = -0.0f; [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L22] ieee_float_shape_type gf_u; [L23] gf_u.value = (x) [L24] EXPR gf_u.word [L24] (ix) = gf_u.word [L26] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == -0.0f && __signbit_float(res) == 1 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L107] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L108] reach_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, 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: 48 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=37occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-07 08:38:29,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:38:31,558 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:38:31,569 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:38:31,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:38:31,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:38:31,606 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:38:31,608 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:38:31,610 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:38:31,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:38:31,613 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:38:31,615 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:38:31,616 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:38:31,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:38:31,618 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:38:31,619 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:38:31,621 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:38:31,622 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:38:31,623 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:38:31,625 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:38:31,628 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:38:31,630 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:38:31,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:38:31,633 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:38:31,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:38:31,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:38:31,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:38:31,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:38:31,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:38:31,641 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:38:31,642 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:38:31,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:38:31,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:38:31,649 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:38:31,650 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:38:31,651 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:38:31,652 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:38:31,653 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:38:31,653 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:38:31,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:38:31,654 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:38:31,655 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:38:31,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-07 08:38:31,713 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:38:31,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:38:31,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:38:31,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:38:31,716 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:38:31,716 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:38:31,716 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:38:31,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:38:31,717 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:38:31,717 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:38:31,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:38:31,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:38:31,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:38:31,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:38:31,718 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-07 08:38:31,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-07 08:38:31,718 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:38:31,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:38:31,719 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:38:31,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:38:31,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:38:31,719 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:38:31,719 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:38:31,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:38:31,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:38:31,720 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:38:31,720 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:38:31,720 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-07 08:38:31,721 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-07 08:38:31,721 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:38:31,721 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:38:31,721 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:38:31,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:38:31,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-07 08:38:31,722 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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9abd2050bf3fc760379c862e37663c5f55c1439a487d6741471f6573b4b4c89a [2021-11-07 08:38:32,036 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:38:32,056 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:38:32,058 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:38:32,060 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:38:32,060 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:38:32,061 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-11-07 08:38:32,128 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/f3e264d39/50aa02eab002461d91741dfb837dbca8/FLAG624ba0e11 [2021-11-07 08:38:32,735 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:38:32,736 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c [2021-11-07 08:38:32,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/f3e264d39/50aa02eab002461d91741dfb837dbca8/FLAG624ba0e11 [2021-11-07 08:38:33,184 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/data/f3e264d39/50aa02eab002461d91741dfb837dbca8 [2021-11-07 08:38:33,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:38:33,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:38:33,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:33,203 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:38:33,207 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:38:33,208 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ea519f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33, skipping insertion in model container [2021-11-07 08:38:33,209 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,216 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:38:33,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:38:33,437 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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-11-07 08:38:33,440 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:33,450 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:38:33,478 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_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/sv-benchmarks/c/float-newlib/float_req_bl_0730c.c[2071,2084] [2021-11-07 08:38:33,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:38:33,494 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:38:33,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33 WrapperNode [2021-11-07 08:38:33,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:38:33,496 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:33,496 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:38:33,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:38:33,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,540 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:38:33,543 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:38:33,543 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:38:33,544 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:38:33,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,607 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,609 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:38:33,614 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:38:33,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:38:33,615 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:38:33,615 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (1/1) ... [2021-11-07 08:38:33,622 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:38:33,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:38:33,657 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:38:33,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:38:33,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-07 08:38:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:38:33,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-07 08:38:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-07 08:38:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:38:33,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:38:33,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2021-11-07 08:38:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-07 08:38:33,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:38:34,486 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:38:34,486 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-07 08:38:34,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:34 BoogieIcfgContainer [2021-11-07 08:38:34,492 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:38:34,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:38:34,494 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:38:34,496 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:38:34,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:38:33" (1/3) ... [2021-11-07 08:38:34,497 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5a4d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:38:34, skipping insertion in model container [2021-11-07 08:38:34,497 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:38:33" (2/3) ... [2021-11-07 08:38:34,498 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d5a4d20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:38:34, skipping insertion in model container [2021-11-07 08:38:34,498 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:34" (3/3) ... [2021-11-07 08:38:34,499 INFO L111 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730c.c [2021-11-07 08:38:34,503 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:38:34,504 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:38:34,556 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:38:34,562 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 08:38:34,563 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:38:34,576 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 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 08:38:34,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-07 08:38:34,581 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:38:34,581 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:34,582 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:38:34,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:34,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2021-11-07 08:38:34,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:38:34,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [255799292] [2021-11-07 08:38:34,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:34,599 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:38:34,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:38:34,606 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:38:34,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-07 08:38:34,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:34,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-07 08:38:34,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:34,839 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 08:38:34,839 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:38:34,876 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 08:38:34,876 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:38:34,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [255799292] [2021-11-07 08:38:34,877 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [255799292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:38:34,877 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:38:34,878 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-07 08:38:34,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536424226] [2021-11-07 08:38:34,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:38:34,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:38:34,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:38:34,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:38:34,898 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 36 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:34,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:38:34,915 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2021-11-07 08:38:34,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:38:34,916 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2021-11-07 08:38:34,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:38:34,925 INFO L225 Difference]: With dead ends: 72 [2021-11-07 08:38:34,925 INFO L226 Difference]: Without dead ends: 34 [2021-11-07 08:38:34,927 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 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 08:38:34,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2021-11-07 08:38:34,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2021-11-07 08:38:34,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 33 states have (on average 1.3636363636363635) internal successors, (45), 33 states have internal predecessors, (45), 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 08:38:34,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2021-11-07 08:38:34,958 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2021-11-07 08:38:34,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:38:34,959 INFO L470 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2021-11-07 08:38:34,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:34,959 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2021-11-07 08:38:34,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-11-07 08:38:34,960 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:38:34,960 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:34,978 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:35,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:38:35,175 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:38:35,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:35,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2021-11-07 08:38:35,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:38:35,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [896837711] [2021-11-07 08:38:35,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:35,186 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:38:35,187 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:38:35,202 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:38:35,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-07 08:38:35,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:35,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-07 08:38:35,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:35,581 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 08:38:35,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:38:35,760 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 08:38:35,760 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:38:35,761 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [896837711] [2021-11-07 08:38:35,761 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [896837711] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:38:35,761 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:38:35,761 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-07 08:38:35,761 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151619099] [2021-11-07 08:38:35,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-07 08:38:35,763 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:38:35,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-07 08:38:35,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-11-07 08:38:35,765 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:35,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:38:35,860 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2021-11-07 08:38:35,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:38:35,863 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-11-07 08:38:35,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:38:35,864 INFO L225 Difference]: With dead ends: 43 [2021-11-07 08:38:35,865 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 08:38:35,866 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2021-11-07 08:38:35,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 08:38:35,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 08:38:35,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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 08:38:35,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2021-11-07 08:38:35,874 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2021-11-07 08:38:35,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:38:35,875 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2021-11-07 08:38:35,876 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:35,877 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2021-11-07 08:38:35,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 08:38:35,878 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:38:35,882 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:35,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:36,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:38:36,099 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:38:36,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:36,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2021-11-07 08:38:36,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:38:36,106 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565938299] [2021-11-07 08:38:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:36,107 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:38:36,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:38:36,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:38:36,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-07 08:38:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:36,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-07 08:38:36,247 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:36,359 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 08:38:36,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:38:36,444 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 08:38:36,445 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:38:36,445 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565938299] [2021-11-07 08:38:36,445 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565938299] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:38:36,445 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:38:36,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2021-11-07 08:38:36,446 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408371528] [2021-11-07 08:38:36,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-07 08:38:36,446 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:38:36,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-07 08:38:36,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-11-07 08:38:36,447 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 08:38:36,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:38:36,526 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2021-11-07 08:38:36,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-07 08:38:36,526 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 [2021-11-07 08:38:36,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:38:36,527 INFO L225 Difference]: With dead ends: 19 [2021-11-07 08:38:36,527 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 08:38:36,528 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-07 08:38:36,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 08:38:36,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 08:38:36,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-07 08:38:36,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2021-11-07 08:38:36,531 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2021-11-07 08:38:36,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:38:36,532 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2021-11-07 08:38:36,532 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 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 08:38:36,532 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2021-11-07 08:38:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-07 08:38:36,533 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:38:36,533 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:38:36,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:36,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:38:36,737 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:38:36,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:38:36,740 INFO L85 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2021-11-07 08:38:36,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-07 08:38:36,743 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [621574970] [2021-11-07 08:38:36,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:38:36,745 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-07 08:38:36,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat [2021-11-07 08:38:36,749 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-07 08:38:36,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-07 08:38:36,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:38:36,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-07 08:38:36,897 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-07 08:38:37,160 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 08:38:37,160 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-07 08:38:37,631 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 08:38:37,632 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-07 08:38:37,632 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [621574970] [2021-11-07 08:38:37,633 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [621574970] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-07 08:38:37,633 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:38:37,633 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2021-11-07 08:38:37,633 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592472129] [2021-11-07 08:38:37,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-07 08:38:37,635 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-07 08:38:37,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-07 08:38:37,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-11-07 08:38:37,638 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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 08:38:37,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:38:37,880 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2021-11-07 08:38:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-07 08:38:37,882 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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 15 [2021-11-07 08:38:37,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:38:37,883 INFO L225 Difference]: With dead ends: 16 [2021-11-07 08:38:37,883 INFO L226 Difference]: Without dead ends: 0 [2021-11-07 08:38:37,883 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2021-11-07 08:38:37,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-07 08:38:37,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-07 08:38:37,884 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 08:38:37,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-07 08:38:37,884 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-11-07 08:38:37,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:38:37,884 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-07 08:38:37,885 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.8571428571428572) internal successors, (26), 14 states have internal predecessors, (26), 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 08:38:37,885 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-07 08:38:37,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-07 08:38:37,887 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:38:37,903 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-07 08:38:38,088 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/mathsat -unsat_core_generation=3 [2021-11-07 08:38:38,094 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-07 08:38:38,102 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,163 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,165 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,170 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,171 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-07 08:38:38,280 INFO L853 garLoopResultBuilder]: At program point L52-2(lines 52 61) the Hoare annotation is: false [2021-11-07 08:38:38,280 INFO L857 garLoopResultBuilder]: For program point L52-3(lines 16 81) no Hoare annotation was computed. [2021-11-07 08:38:38,280 INFO L857 garLoopResultBuilder]: For program point L44(lines 44 45) no Hoare annotation was computed. [2021-11-07 08:38:38,280 INFO L857 garLoopResultBuilder]: For program point L44-2(lines 44 45) no Hoare annotation was computed. [2021-11-07 08:38:38,280 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-07 08:38:38,280 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-07 08:38:38,280 INFO L857 garLoopResultBuilder]: For program point L28(lines 28 29) no Hoare annotation was computed. [2021-11-07 08:38:38,280 INFO L857 garLoopResultBuilder]: For program point L86-1(lines 86 90) no Hoare annotation was computed. [2021-11-07 08:38:38,281 INFO L853 garLoopResultBuilder]: At program point L86-2(lines 86 90) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short13| (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-11-07 08:38:38,281 INFO L857 garLoopResultBuilder]: For program point L86-3(lines 86 90) no Hoare annotation was computed. [2021-11-07 08:38:38,281 INFO L857 garLoopResultBuilder]: For program point L37(lines 37 41) no Hoare annotation was computed. [2021-11-07 08:38:38,281 INFO L857 garLoopResultBuilder]: For program point L37-2(lines 37 41) no Hoare annotation was computed. [2021-11-07 08:38:38,281 INFO L857 garLoopResultBuilder]: For program point L54(lines 54 58) no Hoare annotation was computed. [2021-11-07 08:38:38,281 INFO L857 garLoopResultBuilder]: For program point L21-1(lines 21 25) no Hoare annotation was computed. [2021-11-07 08:38:38,281 INFO L857 garLoopResultBuilder]: For program point L54-2(lines 54 58) no Hoare annotation was computed. [2021-11-07 08:38:38,282 INFO L853 garLoopResultBuilder]: At program point L21-2(lines 21 25) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (fp.neg (_ +zero 8 24))) [2021-11-07 08:38:38,282 INFO L857 garLoopResultBuilder]: For program point L21-3(lines 21 25) no Hoare annotation was computed. [2021-11-07 08:38:38,282 INFO L860 garLoopResultBuilder]: At program point L112(lines 95 113) the Hoare annotation is: true [2021-11-07 08:38:38,282 INFO L857 garLoopResultBuilder]: For program point L38-2(lines 38 39) no Hoare annotation was computed. [2021-11-07 08:38:38,282 INFO L853 garLoopResultBuilder]: At program point L38-3(lines 38 39) the Hoare annotation is: false [2021-11-07 08:38:38,282 INFO L857 garLoopResultBuilder]: For program point L38-4(lines 38 39) no Hoare annotation was computed. [2021-11-07 08:38:38,282 INFO L857 garLoopResultBuilder]: For program point L63(lines 63 72) no Hoare annotation was computed. [2021-11-07 08:38:38,283 INFO L853 garLoopResultBuilder]: At program point L80(lines 16 81) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)))))) [2021-11-07 08:38:38,283 INFO L857 garLoopResultBuilder]: For program point L31(lines 31 32) no Hoare annotation was computed. [2021-11-07 08:38:38,283 INFO L857 garLoopResultBuilder]: For program point L65(lines 65 71) no Hoare annotation was computed. [2021-11-07 08:38:38,283 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-07 08:38:38,283 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 108) no Hoare annotation was computed. [2021-11-07 08:38:38,283 INFO L857 garLoopResultBuilder]: For program point L107(line 107) no Hoare annotation was computed. [2021-11-07 08:38:38,283 INFO L857 garLoopResultBuilder]: For program point L107-2(lines 107 110) no Hoare annotation was computed. [2021-11-07 08:38:38,284 INFO L857 garLoopResultBuilder]: For program point L33(lines 33 34) no Hoare annotation was computed. [2021-11-07 08:38:38,284 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-07 08:38:38,284 INFO L857 garLoopResultBuilder]: For program point L108(line 108) no Hoare annotation was computed. [2021-11-07 08:38:38,284 INFO L857 garLoopResultBuilder]: For program point L75-1(lines 75 79) no Hoare annotation was computed. [2021-11-07 08:38:38,284 INFO L853 garLoopResultBuilder]: At program point L75-2(lines 75 79) the Hoare annotation is: false [2021-11-07 08:38:38,284 INFO L857 garLoopResultBuilder]: For program point L75-3(lines 75 79) no Hoare annotation was computed. [2021-11-07 08:38:38,284 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 70) no Hoare annotation was computed. [2021-11-07 08:38:38,285 INFO L853 garLoopResultBuilder]: At program point L92(lines 83 93) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= .cse0 ULTIMATE.start_main_~res~0) |ULTIMATE.start_main_#t~short13| (= |ULTIMATE.start___ieee754_sqrtf_#res| .cse0) (= ULTIMATE.start___ieee754_sqrtf_~x .cse0) (= |ULTIMATE.start___signbit_float_#res| (_ bv1 32)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (fp.neg (_ +zero 8 24)) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= ULTIMATE.start___ieee754_sqrtf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0)))) (= .cse0 (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0))) (= .cse0 ULTIMATE.start___signbit_float_~x))) [2021-11-07 08:38:38,288 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2021-11-07 08:38:38,289 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:38:38,295 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,296 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,306 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,307 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,310 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,311 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,312 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,315 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,323 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:38:38 BoogieIcfgContainer [2021-11-07 08:38:38,324 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:38:38,325 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:38:38,325 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:38:38,325 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:38:38,326 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:38:34" (3/4) ... [2021-11-07 08:38:38,328 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-07 08:38:38,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2021-11-07 08:38:38,339 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2021-11-07 08:38:38,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:38:38,340 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-07 08:38:38,373 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0)) [2021-11-07 08:38:38,374 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x [2021-11-07 08:38:38,374 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x [2021-11-07 08:38:38,399 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:38:38,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:38:38,400 INFO L168 Benchmark]: Toolchain (without parser) took 5204.63 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 54.2 MB in the beginning and 74.8 MB in the end (delta: -20.6 MB). Peak memory consumption was 41.8 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:38,401 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 73.4 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:38:38,401 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.02 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 52.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:38,402 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 50.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:38,402 INFO L168 Benchmark]: Boogie Preprocessor took 70.34 ms. Allocated memory is still 73.4 MB. Free memory was 50.9 MB in the beginning and 49.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:38,403 INFO L168 Benchmark]: RCFGBuilder took 877.64 ms. Allocated memory is still 73.4 MB. Free memory was 49.0 MB in the beginning and 35.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:38,403 INFO L168 Benchmark]: TraceAbstraction took 3830.96 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 35.1 MB in the beginning and 38.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:38,404 INFO L168 Benchmark]: Witness Printer took 74.28 ms. Allocated memory is still 96.5 MB. Free memory was 38.3 MB in the beginning and 74.8 MB in the end (delta: -36.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:38:38,406 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 73.4 MB. Free memory is still 53.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.02 ms. Allocated memory is still 73.4 MB. Free memory was 53.9 MB in the beginning and 52.8 MB in the end (delta: 1.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.83 ms. Allocated memory is still 73.4 MB. Free memory was 52.8 MB in the beginning and 50.9 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.34 ms. Allocated memory is still 73.4 MB. Free memory was 50.9 MB in the beginning and 49.2 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 877.64 ms. Allocated memory is still 73.4 MB. Free memory was 49.0 MB in the beginning and 35.5 MB in the end (delta: 13.5 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3830.96 ms. Allocated memory was 73.4 MB in the beginning and 96.5 MB in the end (delta: 23.1 MB). Free memory was 35.1 MB in the beginning and 38.3 MB in the end (delta: -3.3 MB). Peak memory consumption was 22.2 MB. Max. memory is 16.1 GB. * Witness Printer took 74.28 ms. Allocated memory is still 96.5 MB. Free memory was 38.3 MB in the beginning and 74.8 MB in the end (delta: -36.5 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[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~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: 108]: 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, 37 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 101 SDslu, 61 SDs, 0 SdLazy, 56 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 20, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 147 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 373 SizeOfPredicates, 22 NumberOfNonLiveVariables, 184 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 83]: Loop Invariant [2021-11-07 08:38:38,415 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,416 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,417 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == 1bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 95]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 86]: Loop Invariant [2021-11-07 08:38:38,418 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,419 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,420 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,423 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == res) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0))) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant [2021-11-07 08:38:38,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,424 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,425 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2021-11-07 08:38:38,426 WARN L418 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0)) RESULT: Ultimate proved your program to be correct! [2021-11-07 08:38:38,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_afc9c4b1-482d-45ec-b7fd-4fccec8ea6ca/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