./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:54:39,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:54:39,328 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:54:39,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:54:39,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:54:39,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:54:39,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:54:39,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:54:39,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:54:39,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:54:39,396 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:54:39,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:54:39,398 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:54:39,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:54:39,401 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:54:39,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:54:39,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:54:39,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:54:39,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:54:39,412 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:54:39,414 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:54:39,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:54:39,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:54:39,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:54:39,424 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:54:39,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:54:39,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:54:39,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:54:39,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:54:39,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:54:39,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:54:39,430 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:54:39,431 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:54:39,432 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:54:39,434 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:54:39,434 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:54:39,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:54:39,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:54:39,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:54:39,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:54:39,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:54:39,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:54:39,471 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:54:39,472 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:54:39,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:54:39,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:54:39,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:54:39,477 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:54:39,477 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:54:39,477 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:54:39,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:54:39,478 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:54:39,478 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:54:39,478 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:54:39,478 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:54:39,478 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:54:39,479 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:54:39,479 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:54:39,479 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:54:39,479 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:54:39,480 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:54:39,480 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:54:39,480 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:54:39,480 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:54:39,481 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:54:39,481 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:54:39,481 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:54:39,481 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:54:39,481 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:54:39,482 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:54:39,482 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_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae [2021-11-23 15:54:39,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:54:39,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:54:39,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:54:39,762 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:54:39,763 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:54:39,765 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2021-11-23 15:54:39,851 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/deca03560/3af8006ef7254650a879d3347d91f94f/FLAG79a69aaef [2021-11-23 15:54:40,326 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:54:40,326 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2021-11-23 15:54:40,334 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/deca03560/3af8006ef7254650a879d3347d91f94f/FLAG79a69aaef [2021-11-23 15:54:40,708 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/deca03560/3af8006ef7254650a879d3347d91f94f [2021-11-23 15:54:40,710 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:54:40,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:54:40,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:54:40,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:54:40,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:54:40,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:40" (1/1) ... [2021-11-23 15:54:40,720 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78304242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:40, skipping insertion in model container [2021-11-23 15:54:40,720 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:40" (1/1) ... [2021-11-23 15:54:40,727 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:54:40,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:54:40,922 WARN L230 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_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/sv-benchmarks/c/nla-digbench/sqrt1-ll.c[520,533] [2021-11-23 15:54:40,950 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:54:40,960 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:54:40,985 WARN L230 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_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/sv-benchmarks/c/nla-digbench/sqrt1-ll.c[520,533] [2021-11-23 15:54:41,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:54:41,025 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:54:41,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41 WrapperNode [2021-11-23 15:54:41,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:54:41,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:54:41,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:54:41,030 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:54:41,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,047 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,070 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2021-11-23 15:54:41,071 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:54:41,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:54:41,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:54:41,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:54:41,081 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,093 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,093 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,113 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,115 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:54:41,117 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:54:41,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:54:41,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:54:41,120 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:41" (1/1) ... [2021-11-23 15:54:41,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:54:41,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:54:41,152 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:54:41,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:54:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:54:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:54:41,194 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:54:41,194 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:54:41,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 15:54:41,195 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 15:54:41,258 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:54:41,260 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:54:41,360 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:54:41,379 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:54:41,383 INFO L158 Benchmark]: Toolchain (without parser) took 670.02ms. Allocated memory is still 94.4MB. Free memory was 61.2MB in the beginning and 57.9MB in the end (delta: 3.4MB). Peak memory consumption was 1.2MB. Max. memory is 16.1GB. [2021-11-23 15:54:41,384 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:54:41,385 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.02ms. Allocated memory is still 94.4MB. Free memory was 61.0MB in the beginning and 69.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:54:41,386 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.33ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:54:41,387 INFO L158 Benchmark]: Boogie Preprocessor took 44.44ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 67.2MB in the end (delta: 842.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:54:41,388 INFO L158 Benchmark]: RCFGBuilder took 264.24ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 57.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:54:41,392 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 94.4MB. Free memory was 49.7MB in the beginning and 49.6MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.02ms. Allocated memory is still 94.4MB. Free memory was 61.0MB in the beginning and 69.7MB in the end (delta: -8.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.33ms. Allocated memory is still 94.4MB. Free memory was 69.7MB in the beginning and 68.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.44ms. Allocated memory is still 94.4MB. Free memory was 68.1MB in the beginning and 67.2MB in the end (delta: 842.7kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 264.24ms. Allocated memory is still 94.4MB. Free memory was 67.2MB in the beginning and 57.9MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:54:41,432 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:54:43,905 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:54:43,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:54:43,964 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:54:43,965 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:54:43,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:54:43,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:54:43,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:54:43,981 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:54:43,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:54:43,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:54:43,993 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:54:43,993 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:54:43,996 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:54:43,998 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:54:44,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:54:44,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:54:44,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:54:44,009 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:54:44,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:54:44,020 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:54:44,021 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:54:44,025 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:54:44,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:54:44,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:54:44,037 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:54:44,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:54:44,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:54:44,040 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:54:44,041 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:54:44,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:54:44,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:54:44,045 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:54:44,046 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:54:44,048 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:54:44,048 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:54:44,049 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:54:44,049 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:54:44,049 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:54:44,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:54:44,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:54:44,053 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:54:44,095 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:54:44,096 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:54:44,097 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:54:44,097 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:54:44,098 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:54:44,098 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:54:44,099 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:54:44,099 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:54:44,099 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:54:44,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:54:44,100 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:54:44,100 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:54:44,100 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:54:44,100 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:54:44,101 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:54:44,101 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:54:44,101 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:54:44,101 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:54:44,102 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:54:44,102 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:54:44,102 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:54:44,102 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:54:44,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:54:44,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:54:44,103 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:54:44,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:54:44,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:54:44,104 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:54:44,104 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:54:44,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:54:44,105 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:54:44,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:54:44,105 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_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a667cf640b9cf5657756f4ca44157e13471ed71aebfaf7ff11f9d5251db37ae [2021-11-23 15:54:44,552 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:54:44,577 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:54:44,580 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:54:44,582 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:54:44,583 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:54:44,584 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2021-11-23 15:54:44,654 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/fa482908a/87ada22178c14791be0b11601d0f2f67/FLAGd8cdf2948 [2021-11-23 15:54:45,245 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:54:45,246 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/sv-benchmarks/c/nla-digbench/sqrt1-ll.c [2021-11-23 15:54:45,253 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/fa482908a/87ada22178c14791be0b11601d0f2f67/FLAGd8cdf2948 [2021-11-23 15:54:45,579 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/data/fa482908a/87ada22178c14791be0b11601d0f2f67 [2021-11-23 15:54:45,581 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:54:45,583 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:54:45,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:54:45,585 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:54:45,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:54:45,589 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26470de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45, skipping insertion in model container [2021-11-23 15:54:45,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,599 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:54:45,613 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:54:45,760 WARN L230 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_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/sv-benchmarks/c/nla-digbench/sqrt1-ll.c[520,533] [2021-11-23 15:54:45,777 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:54:45,793 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:54:45,807 WARN L230 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_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/sv-benchmarks/c/nla-digbench/sqrt1-ll.c[520,533] [2021-11-23 15:54:45,816 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:54:45,857 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:54:45,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45 WrapperNode [2021-11-23 15:54:45,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:54:45,859 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:54:45,859 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:54:45,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:54:45,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,906 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,925 INFO L137 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 36 [2021-11-23 15:54:45,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:54:45,926 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:54:45,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:54:45,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:54:45,935 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,943 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,949 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:54:45,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:54:45,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:54:45,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:54:45,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:45" (1/1) ... [2021-11-23 15:54:45,961 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:54:45,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:54:45,988 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:54:45,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:54:46,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:54:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:54:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:54:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:54:46,038 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-11-23 15:54:46,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-11-23 15:54:46,120 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:54:46,122 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:54:46,320 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:54:46,350 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-23 15:54:46,366 INFO L158 Benchmark]: Toolchain (without parser) took 781.64ms. Allocated memory is still 62.9MB. Free memory was 42.1MB in the beginning and 34.2MB in the end (delta: 7.9MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2021-11-23 15:54:46,366 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:54:46,367 INFO L158 Benchmark]: CACSL2BoogieTranslator took 273.71ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 46.5MB in the end (delta: -4.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-23 15:54:46,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.74ms. Allocated memory is still 62.9MB. Free memory was 46.3MB in the beginning and 44.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:54:46,369 INFO L158 Benchmark]: Boogie Preprocessor took 25.10ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 43.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:54:46,370 INFO L158 Benchmark]: RCFGBuilder took 411.47ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 34.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:54:46,374 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 62.9MB. Free memory is still 43.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 273.71ms. Allocated memory is still 62.9MB. Free memory was 42.0MB in the beginning and 46.5MB in the end (delta: -4.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.74ms. Allocated memory is still 62.9MB. Free memory was 46.3MB in the beginning and 44.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.10ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 43.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 411.47ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 34.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:54:46,430 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b57a3a74-ab0d-4a36-8eb3-6612af74c94f/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable