./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:32:20,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:32:20,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:32:20,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:32:20,831 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:32:20,835 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:32:20,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:32:20,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:32:20,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:32:20,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:32:20,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:32:20,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:32:20,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:32:20,856 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:32:20,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:32:20,870 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:32:20,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:32:20,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:32:20,874 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:32:20,876 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:32:20,879 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:32:20,882 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:32:20,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:32:20,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:32:20,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:32:20,889 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:32:20,889 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:32:20,890 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:32:20,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:32:20,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:32:20,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:32:20,900 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:32:20,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:32:20,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:32:20,906 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:32:20,906 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:32:20,907 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:32:20,907 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:32:20,907 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:32:20,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:32:20,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:32:20,910 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 08:32:20,960 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:32:20,960 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:32:20,961 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:32:20,961 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:32:20,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:32:20,969 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:32:20,969 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:32:20,969 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:32:20,969 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:32:20,970 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:32:20,970 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:32:20,970 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:32:20,970 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:32:20,970 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:32:20,970 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:32:20,971 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:32:20,971 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:32:20,971 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:32:20,971 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:32:20,971 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:32:20,972 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:32:20,972 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:32:20,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:32:20,972 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:32:20,972 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:32:20,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:32:20,973 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:32:20,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 08:32:20,973 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:32:20,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:32:20,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:32:20,974 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:32:20,974 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_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2021-11-09 08:32:21,235 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:32:21,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:32:21,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:32:21,277 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:32:21,277 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:32:21,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2021-11-09 08:32:21,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/7e74bb7e3/8a98a8c3f1354e1899285c4611d44cc5/FLAG594cd130a [2021-11-09 08:32:21,898 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:32:21,899 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/sv-benchmarks/c/floats-cbmc-regression/float5.c [2021-11-09 08:32:21,913 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/7e74bb7e3/8a98a8c3f1354e1899285c4611d44cc5/FLAG594cd130a [2021-11-09 08:32:22,253 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/7e74bb7e3/8a98a8c3f1354e1899285c4611d44cc5 [2021-11-09 08:32:22,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:32:22,257 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:32:22,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:32:22,259 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:32:22,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:32:22,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f51cd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22, skipping insertion in model container [2021-11-09 08:32:22,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,275 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:32:22,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:32:22,430 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_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2021-11-09 08:32:22,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:32:22,445 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:32:22,461 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_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2021-11-09 08:32:22,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:32:22,475 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:32:22,476 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22 WrapperNode [2021-11-09 08:32:22,476 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:32:22,478 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:32:22,478 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:32:22,478 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:32:22,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:32:22,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:32:22,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:32:22,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:32:22,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,528 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,529 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,531 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:32:22,532 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:32:22,532 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:32:22,532 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:32:22,534 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (1/1) ... [2021-11-09 08:32:22,542 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:32:22,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:32:22,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:32:22,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:32:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:32:22,624 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:32:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:32:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:32:22,832 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:32:22,833 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-09 08:32:22,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:32:22 BoogieIcfgContainer [2021-11-09 08:32:22,835 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:32:22,836 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:32:22,837 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:32:22,846 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:32:22,846 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:32:22" (1/3) ... [2021-11-09 08:32:22,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2783b428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:32:22, skipping insertion in model container [2021-11-09 08:32:22,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:22" (2/3) ... [2021-11-09 08:32:22,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2783b428 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:32:22, skipping insertion in model container [2021-11-09 08:32:22,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:32:22" (3/3) ... [2021-11-09 08:32:22,849 INFO L111 eAbstractionObserver]: Analyzing ICFG float5.c [2021-11-09 08:32:22,855 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:32:22,866 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:32:22,940 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:32:22,955 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:32:22,955 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:32:22,968 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:22,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:32:22,973 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:32:22,974 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:32:22,974 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:32:22,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:32:22,980 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-09 08:32:23,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:32:23,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101225790] [2021-11-09 08:32:23,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:32:23,022 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:32:23,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:32:23,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:32:23,149 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:32:23,150 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101225790] [2021-11-09 08:32:23,150 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101225790] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:32:23,151 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:32:23,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 08:32:23,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359047051] [2021-11-09 08:32:23,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:32:23,158 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:32:23,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:32:23,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:32:23,174 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:23,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:32:23,185 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-11-09 08:32:23,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:32:23,186 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-09 08:32:23,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:32:23,193 INFO L225 Difference]: With dead ends: 17 [2021-11-09 08:32:23,194 INFO L226 Difference]: Without dead ends: 7 [2021-11-09 08:32:23,196 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:32:23,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-09 08:32:23,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-09 08:32:23,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:23,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-09 08:32:23,225 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-09 08:32:23,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:32:23,226 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-09 08:32:23,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:23,226 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-09 08:32:23,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:32:23,227 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:32:23,227 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:32:23,227 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 08:32:23,228 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:32:23,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:32:23,229 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-09 08:32:23,229 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:32:23,230 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922767786] [2021-11-09 08:32:23,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:32:23,230 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:32:23,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:32:23,251 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:32:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:32:23,287 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:32:23,287 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 08:32:23,289 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:32:23,291 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 08:32:23,295 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 08:32:23,298 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:32:23,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:32:23 BoogieIcfgContainer [2021-11-09 08:32:23,315 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:32:23,316 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:32:23,316 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:32:23,316 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:32:23,317 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:32:22" (3/4) ... [2021-11-09 08:32:23,320 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-09 08:32:23,320 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:32:23,322 INFO L168 Benchmark]: Toolchain (without parser) took 1064.28 ms. Allocated memory is still 96.5 MB. Free memory was 69.0 MB in the beginning and 58.6 MB in the end (delta: 10.3 MB). Peak memory consumption was 11.9 MB. Max. memory is 16.1 GB. [2021-11-09 08:32:23,322 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:32:23,323 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.55 ms. Allocated memory is still 96.5 MB. Free memory was 68.8 MB in the beginning and 59.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:32:23,324 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.38 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 57.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:32:23,325 INFO L168 Benchmark]: Boogie Preprocessor took 19.63 ms. Allocated memory is still 96.5 MB. Free memory was 57.9 MB in the beginning and 56.9 MB in the end (delta: 963.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:32:23,325 INFO L168 Benchmark]: RCFGBuilder took 302.88 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 48.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 08:32:23,326 INFO L168 Benchmark]: TraceAbstraction took 478.39 ms. Allocated memory is still 96.5 MB. Free memory was 47.9 MB in the beginning and 59.1 MB in the end (delta: -11.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:32:23,327 INFO L168 Benchmark]: Witness Printer took 4.55 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 58.6 MB in the end (delta: 407.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:32:23,330 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory is still 46.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 218.55 ms. Allocated memory is still 96.5 MB. Free memory was 68.8 MB in the beginning and 59.4 MB in the end (delta: 9.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.38 ms. Allocated memory is still 96.5 MB. Free memory was 59.4 MB in the beginning and 57.9 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.63 ms. Allocated memory is still 96.5 MB. Free memory was 57.9 MB in the beginning and 56.9 MB in the end (delta: 963.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 302.88 ms. Allocated memory is still 96.5 MB. Free memory was 56.9 MB in the beginning and 48.3 MB in the end (delta: 8.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 478.39 ms. Allocated memory is still 96.5 MB. Free memory was 47.9 MB in the beginning and 59.1 MB in the end (delta: -11.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 4.55 ms. Allocated memory is still 96.5 MB. Free memory was 59.1 MB in the beginning and 58.6 MB in the end (delta: 407.7 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: 14]: 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 14, overapproximation of someBinaryDOUBLEComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L8] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L10] COND FALSE !(!(a==1 || a==0.5 || a==2 || a==3 || a==0.1)) [L11] b=a [L12] a/=2 [L13] a*=2 [L14] COND TRUE !(a==b) [L14] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 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: 9 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=10occurred 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-09 08:32:23,370 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:32:25,806 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:32:25,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:32:25,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:32:25,868 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:32:25,874 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:32:25,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:32:25,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:32:25,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:32:25,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:32:25,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:32:25,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:32:25,896 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:32:25,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:32:25,899 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:32:25,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:32:25,902 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:32:25,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:32:25,913 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:32:25,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:32:25,917 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:32:25,920 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:32:25,923 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:32:25,924 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:32:25,928 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:32:25,928 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:32:25,929 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:32:25,930 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:32:25,930 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:32:25,932 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:32:25,932 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:32:25,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:32:25,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:32:25,942 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:32:25,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:32:25,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:32:25,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:32:25,945 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:32:25,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:32:25,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:32:25,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:32:25,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 08:32:26,000 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:32:26,000 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:32:26,001 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:32:26,001 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:32:26,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:32:26,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:32:26,004 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:32:26,004 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:32:26,004 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:32:26,005 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:32:26,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:32:26,006 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 08:32:26,006 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 08:32:26,006 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 08:32:26,006 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 08:32:26,007 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 08:32:26,007 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:32:26,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:32:26,007 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:32:26,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 08:32:26,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:32:26,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:32:26,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 08:32:26,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:32:26,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:32:26,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 08:32:26,009 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 08:32:26,009 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 08:32:26,009 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 08:32:26,009 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 08:32:26,010 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 08:32:26,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 08:32:26,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:32:26,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 08:32:26,011 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_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fe8fc4355a4e8558a06e9516fd8b9c3e5a636112d9ce6a006f4aad85245907d [2021-11-09 08:32:26,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:32:26,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:32:26,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:32:26,417 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:32:26,418 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:32:26,419 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/floats-cbmc-regression/float5.c [2021-11-09 08:32:26,503 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/b9eca9cfa/601e3ea88b024fd38167da80bf0bc414/FLAG042f74702 [2021-11-09 08:32:27,128 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:32:27,130 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/sv-benchmarks/c/floats-cbmc-regression/float5.c [2021-11-09 08:32:27,136 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/b9eca9cfa/601e3ea88b024fd38167da80bf0bc414/FLAG042f74702 [2021-11-09 08:32:27,475 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/data/b9eca9cfa/601e3ea88b024fd38167da80bf0bc414 [2021-11-09 08:32:27,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:32:27,478 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:32:27,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:32:27,479 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:32:27,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:32:27,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b729a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27, skipping insertion in model container [2021-11-09 08:32:27,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:32:27,511 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:32:27,657 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_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2021-11-09 08:32:27,661 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:32:27,674 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:32:27,689 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_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/sv-benchmarks/c/floats-cbmc-regression/float5.c[501,514] [2021-11-09 08:32:27,690 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:32:27,705 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:32:27,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27 WrapperNode [2021-11-09 08:32:27,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:32:27,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:32:27,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:32:27,708 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:32:27,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,724 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:32:27,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:32:27,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:32:27,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:32:27,753 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,777 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,779 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:32:27,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:32:27,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:32:27,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:32:27,793 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (1/1) ... [2021-11-09 08:32:27,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 08:32:27,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:32:27,823 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 08:32:27,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 08:32:27,877 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:32:27,877 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:32:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 08:32:27,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:32:28,304 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:32:28,305 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-09 08:32:28,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:32:28 BoogieIcfgContainer [2021-11-09 08:32:28,307 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:32:28,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 08:32:28,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 08:32:28,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 08:32:28,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 08:32:27" (1/3) ... [2021-11-09 08:32:28,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2032b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:32:28, skipping insertion in model container [2021-11-09 08:32:28,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:32:27" (2/3) ... [2021-11-09 08:32:28,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c2032b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 08:32:28, skipping insertion in model container [2021-11-09 08:32:28,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:32:28" (3/3) ... [2021-11-09 08:32:28,316 INFO L111 eAbstractionObserver]: Analyzing ICFG float5.c [2021-11-09 08:32:28,321 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 08:32:28,322 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 08:32:28,386 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 08:32:28,392 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 08:32:28,394 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 08:32:28,412 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:28,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:32:28,427 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:32:28,428 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:32:28,428 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:32:28,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:32:28,437 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2021-11-09 08:32:28,449 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:32:28,451 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623118662] [2021-11-09 08:32:28,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:32:28,452 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:32:28,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:32:28,457 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:32:28,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 08:32:28,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:32:28,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 08:32:28,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:32:28,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:32:28,679 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:32:28,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:32:28,722 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:32:28,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623118662] [2021-11-09 08:32:28,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623118662] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:32:28,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:32:28,723 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 08:32:28,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393918460] [2021-11-09 08:32:28,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 08:32:28,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:32:28,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 08:32:28,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:32:28,749 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:28,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:32:28,762 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2021-11-09 08:32:28,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 08:32:28,764 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2021-11-09 08:32:28,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:32:28,773 INFO L225 Difference]: With dead ends: 17 [2021-11-09 08:32:28,773 INFO L226 Difference]: Without dead ends: 7 [2021-11-09 08:32:28,776 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 08:32:28,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2021-11-09 08:32:28,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2021-11-09 08:32:28,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:28,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2021-11-09 08:32:28,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2021-11-09 08:32:28,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:32:28,807 INFO L470 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2021-11-09 08:32:28,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:32:28,808 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2021-11-09 08:32:28,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2021-11-09 08:32:28,808 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 08:32:28,808 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:32:28,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-09 08:32:29,021 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:32:29,021 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 08:32:29,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:32:29,022 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2021-11-09 08:32:29,023 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 08:32:29,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888036227] [2021-11-09 08:32:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:32:29,024 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 08:32:29,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 08:32:29,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 08:32:29,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 08:32:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:32:29,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-09 08:32:29,147 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 08:32:43,414 WARN L207 SmtUtils]: Spent 5.64 s on a formula simplification that was a NOOP. DAG size: 21 [2021-11-09 08:32:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:32:44,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 08:33:02,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:33:02,067 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 08:33:02,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888036227] [2021-11-09 08:33:02,067 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888036227] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 08:33:02,067 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:33:02,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 7 [2021-11-09 08:33:02,068 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438273180] [2021-11-09 08:33:02,069 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-09 08:33:02,070 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 08:33:02,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-09 08:33:02,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=27, Unknown=1, NotChecked=0, Total=42 [2021-11-09 08:33:02,071 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:15,655 WARN L207 SmtUtils]: Spent 6.30 s on a formula simplification that was a NOOP. DAG size: 23 [2021-11-09 08:33:15,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:33:15,656 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2021-11-09 08:33:15,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:33:15,657 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2021-11-09 08:33:15,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 08:33:15,657 INFO L225 Difference]: With dead ends: 7 [2021-11-09 08:33:15,657 INFO L226 Difference]: Without dead ends: 0 [2021-11-09 08:33:15,658 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.2s TimeCoverageRelationStatistics Valid=21, Invalid=34, Unknown=1, NotChecked=0, Total=56 [2021-11-09 08:33:15,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-09 08:33:15,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-09 08:33:15,659 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) [2021-11-09 08:33:15,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 08:33:15,659 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2021-11-09 08:33:15,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 08:33:15,659 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 08:33:15,659 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 7 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:33:15,660 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-09 08:33:15,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-09 08:33:15,662 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 08:33:15,682 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 08:33:15,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 08:33:15,865 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-09 08:33:15,868 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-09 08:33:15,868 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-09 08:33:15,868 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-09 08:33:15,868 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-09 08:33:15,869 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 14) no Hoare annotation was computed. [2021-11-09 08:33:15,869 INFO L857 garLoopResultBuilder]: For program point L14(line 14) no Hoare annotation was computed. [2021-11-09 08:33:15,869 INFO L857 garLoopResultBuilder]: For program point L14-1(line 14) no Hoare annotation was computed. [2021-11-09 08:33:15,869 INFO L857 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2021-11-09 08:33:15,870 INFO L857 garLoopResultBuilder]: For program point L10-2(line 10) no Hoare annotation was computed. [2021-11-09 08:33:15,870 INFO L857 garLoopResultBuilder]: For program point L6(lines 6 15) no Hoare annotation was computed. [2021-11-09 08:33:15,872 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 08:33:15,874 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 08:33:15,876 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 08:33:15 BoogieIcfgContainer [2021-11-09 08:33:15,876 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 08:33:15,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 08:33:15,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 08:33:15,877 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 08:33:15,877 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:32:28" (3/4) ... [2021-11-09 08:33:15,880 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-09 08:33:15,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2021-11-09 08:33:15,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-11-09 08:33:15,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-09 08:33:15,889 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-09 08:33:15,914 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 08:33:15,915 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 08:33:15,916 INFO L168 Benchmark]: Toolchain (without parser) took 48437.44 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 49.5 MB in the beginning and 53.3 MB in the end (delta: -3.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 16.1 GB. [2021-11-09 08:33:15,917 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 67.1 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:33:15,918 INFO L168 Benchmark]: CACSL2BoogieTranslator took 227.36 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 39.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 08:33:15,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 67.1 MB. Free memory was 39.3 MB in the beginning and 37.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 08:33:15,919 INFO L168 Benchmark]: Boogie Preprocessor took 48.46 ms. Allocated memory is still 67.1 MB. Free memory was 37.8 MB in the beginning and 36.8 MB in the end (delta: 996.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:33:15,920 INFO L168 Benchmark]: RCFGBuilder took 514.62 ms. Allocated memory is still 67.1 MB. Free memory was 36.7 MB in the beginning and 46.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. [2021-11-09 08:33:15,920 INFO L168 Benchmark]: TraceAbstraction took 47567.83 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 46.1 MB in the beginning and 55.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. [2021-11-09 08:33:15,921 INFO L168 Benchmark]: Witness Printer took 37.98 ms. Allocated memory is still 90.2 MB. Free memory was 55.4 MB in the beginning and 53.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 08:33:15,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 67.1 MB. Free memory is still 48.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 227.36 ms. Allocated memory is still 67.1 MB. Free memory was 49.4 MB in the beginning and 39.3 MB in the end (delta: 10.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.24 ms. Allocated memory is still 67.1 MB. Free memory was 39.3 MB in the beginning and 37.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.46 ms. Allocated memory is still 67.1 MB. Free memory was 37.8 MB in the beginning and 36.8 MB in the end (delta: 996.0 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 514.62 ms. Allocated memory is still 67.1 MB. Free memory was 36.7 MB in the beginning and 46.3 MB in the end (delta: -9.7 MB). Peak memory consumption was 10.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 47567.83 ms. Allocated memory was 67.1 MB in the beginning and 90.2 MB in the end (delta: 23.1 MB). Free memory was 46.1 MB in the beginning and 55.4 MB in the end (delta: -9.3 MB). Peak memory consumption was 13.8 MB. Max. memory is 16.1 GB. * Witness Printer took 37.98 ms. Allocated memory is still 90.2 MB. Free memory was 55.4 MB in the beginning and 53.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.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: 14]: 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, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 47.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 13.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 11 SDtfs, 1 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 0 LocationsWithAnnotation, 0 PreInvPairs, 0 NumberOfFragments, 0 HoareAnnotationTreeSize, 0 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 0 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 33.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 100 SizeOfPredicates, 4 NumberOfNonLiveVariables, 58 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-11-09 08:33:15,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_75290f2b-1bc6-43b9-bd91-a9c227fb1af2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE