./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/half_2.i --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_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/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_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/half_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/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_43775b2e-f5db-419d-bad7-fb1412ab8072/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 0b362a98d328467ff4a069dbed2be3429090ca070e60d49c76297e4bb94402b7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:59:11,086 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:59:11,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:59:11,147 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:59:11,148 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:59:11,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:59:11,158 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:59:11,163 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:59:11,166 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:59:11,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:59:11,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:59:11,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:59:11,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:59:11,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:59:11,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:59:11,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:59:11,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:59:11,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:59:11,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:59:11,199 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:59:11,203 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:59:11,205 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:59:11,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:59:11,210 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:59:11,217 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:59:11,217 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:59:11,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:59:11,220 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:59:11,221 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:59:11,223 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:59:11,223 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:59:11,224 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:59:11,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:59:11,228 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:59:11,229 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:59:11,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:59:11,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:59:11,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:59:11,231 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:59:11,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:59:11,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:59:11,234 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:59:11,280 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:59:11,280 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:59:11,282 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:59:11,282 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:59:11,283 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:59:11,283 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:59:11,284 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:59:11,284 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:59:11,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:59:11,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:59:11,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:59:11,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:59:11,290 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:59:11,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:59:11,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:59:11,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:59:11,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:59:11,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:59:11,291 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:59:11,291 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:59:11,292 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:59:11,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:59:11,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:59:11,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:59:11,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:59:11,293 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:59:11,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:59:11,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:59:11,294 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_43775b2e-f5db-419d-bad7-fb1412ab8072/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b362a98d328467ff4a069dbed2be3429090ca070e60d49c76297e4bb94402b7 [2021-11-23 15:59:11,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:59:11,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:59:11,621 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:59:11,622 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:59:11,623 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:59:11,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/loop-invgen/half_2.i [2021-11-23 15:59:11,695 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/af268ac83/003e5211ef0e464d99997aa4d4e3827d/FLAGf11bd9eb7 [2021-11-23 15:59:12,180 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:59:12,180 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/sv-benchmarks/c/loop-invgen/half_2.i [2021-11-23 15:59:12,187 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/af268ac83/003e5211ef0e464d99997aa4d4e3827d/FLAGf11bd9eb7 [2021-11-23 15:59:12,543 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/af268ac83/003e5211ef0e464d99997aa4d4e3827d [2021-11-23 15:59:12,545 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:59:12,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:59:12,559 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:59:12,559 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:59:12,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:59:12,564 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@436f6b28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12, skipping insertion in model container [2021-11-23 15:59:12,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:59:12,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:59:12,773 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_43775b2e-f5db-419d-bad7-fb1412ab8072/sv-benchmarks/c/loop-invgen/half_2.i[893,906] [2021-11-23 15:59:12,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:59:12,792 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:59:12,807 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_43775b2e-f5db-419d-bad7-fb1412ab8072/sv-benchmarks/c/loop-invgen/half_2.i[893,906] [2021-11-23 15:59:12,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:59:12,825 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:59:12,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12 WrapperNode [2021-11-23 15:59:12,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:59:12,828 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:59:12,828 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:59:12,828 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:59:12,837 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,862 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2021-11-23 15:59:12,863 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:59:12,864 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:59:12,864 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:59:12,864 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:59:12,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,878 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,884 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,886 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:59:12,887 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:59:12,887 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:59:12,887 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:59:12,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:12" (1/1) ... [2021-11-23 15:59:12,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:59:12,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:59:12,922 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:59:12,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:59:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:59:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:59:12,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:59:12,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:59:13,055 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:59:13,057 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:59:13,222 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:59:13,237 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 15:59:13,241 INFO L158 Benchmark]: Toolchain (without parser) took 693.68ms. Allocated memory is still 111.1MB. Free memory was 73.9MB in the beginning and 74.4MB in the end (delta: -520.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:59:13,242 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:59:13,243 INFO L158 Benchmark]: CACSL2BoogieTranslator took 268.12ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 86.4MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:59:13,244 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.62ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 85.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:59:13,244 INFO L158 Benchmark]: Boogie Preprocessor took 22.23ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 84.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:59:13,245 INFO L158 Benchmark]: RCFGBuilder took 352.57ms. Allocated memory is still 111.1MB. Free memory was 84.0MB in the beginning and 74.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:59:13,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 111.1MB. Free memory is still 90.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 268.12ms. Allocated memory is still 111.1MB. Free memory was 73.7MB in the beginning and 86.4MB in the end (delta: -12.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.62ms. Allocated memory is still 111.1MB. Free memory was 86.4MB in the beginning and 85.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.23ms. Allocated memory is still 111.1MB. Free memory was 85.1MB in the beginning and 84.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 352.57ms. Allocated memory is still 111.1MB. Free memory was 84.0MB in the beginning and 74.4MB in the end (delta: 9.6MB). 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 15:59:13,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/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_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/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_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/half_2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/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_43775b2e-f5db-419d-bad7-fb1412ab8072/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 0b362a98d328467ff4a069dbed2be3429090ca070e60d49c76297e4bb94402b7 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:59:15,846 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:59:15,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:59:15,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:59:15,902 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:59:15,908 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:59:15,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:59:15,919 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:59:15,922 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:59:15,927 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:59:15,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:59:15,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:59:15,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:59:15,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:59:15,935 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:59:15,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:59:15,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:59:15,938 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:59:15,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:59:15,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:59:15,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:59:15,955 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:59:15,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:59:15,964 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:59:15,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:59:15,968 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:59:15,968 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:59:15,970 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:59:15,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:59:15,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:59:15,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:59:15,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:59:15,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:59:15,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:59:15,978 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:59:15,978 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:59:15,979 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:59:15,979 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:59:15,980 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:59:15,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:59:15,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:59:15,984 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:59:16,028 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:59:16,028 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:59:16,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:59:16,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:59:16,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:59:16,032 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:59:16,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:59:16,032 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:59:16,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:59:16,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:59:16,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:59:16,034 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:59:16,034 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:59:16,034 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:59:16,034 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:59:16,034 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:59:16,035 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:59:16,035 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:59:16,035 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:59:16,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:59:16,036 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:59:16,036 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:59:16,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:59:16,036 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:59:16,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:59:16,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:59:16,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:59:16,037 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:59:16,037 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:59:16,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:59:16,038 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:59:16,038 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:59:16,038 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_43775b2e-f5db-419d-bad7-fb1412ab8072/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0b362a98d328467ff4a069dbed2be3429090ca070e60d49c76297e4bb94402b7 [2021-11-23 15:59:16,426 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:59:16,448 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:59:16,451 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:59:16,453 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:59:16,453 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:59:16,455 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/loop-invgen/half_2.i [2021-11-23 15:59:16,534 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/1620c1ac1/3357c3f1f3f94a6bbccd689c3d648051/FLAG356c64a15 [2021-11-23 15:59:17,072 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:59:17,074 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/sv-benchmarks/c/loop-invgen/half_2.i [2021-11-23 15:59:17,083 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/1620c1ac1/3357c3f1f3f94a6bbccd689c3d648051/FLAG356c64a15 [2021-11-23 15:59:17,406 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/data/1620c1ac1/3357c3f1f3f94a6bbccd689c3d648051 [2021-11-23 15:59:17,408 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:59:17,410 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:59:17,411 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:59:17,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:59:17,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:59:17,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d0a4023 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17, skipping insertion in model container [2021-11-23 15:59:17,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,425 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:59:17,440 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:59:17,620 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_43775b2e-f5db-419d-bad7-fb1412ab8072/sv-benchmarks/c/loop-invgen/half_2.i[893,906] [2021-11-23 15:59:17,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:59:17,657 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:59:17,675 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_43775b2e-f5db-419d-bad7-fb1412ab8072/sv-benchmarks/c/loop-invgen/half_2.i[893,906] [2021-11-23 15:59:17,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:59:17,718 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:59:17,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17 WrapperNode [2021-11-23 15:59:17,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:59:17,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:59:17,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:59:17,722 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:59:17,729 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,778 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 47 [2021-11-23 15:59:17,779 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:59:17,779 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:59:17,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:59:17,780 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:59:17,788 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,789 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,800 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,802 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,804 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:59:17,805 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:59:17,805 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:59:17,805 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:59:17,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:59:17" (1/1) ... [2021-11-23 15:59:17,813 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:59:17,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:59:17,843 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:59:17,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:59:17,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:59:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:59:17,887 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:59:17,887 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:59:17,949 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:59:17,951 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:59:18,134 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:59:18,148 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 15:59:18,153 INFO L158 Benchmark]: Toolchain (without parser) took 741.48ms. Allocated memory is still 62.9MB. Free memory was 43.6MB in the beginning and 35.5MB in the end (delta: 8.1MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2021-11-23 15:59:18,154 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:59:18,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.07ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 47.5MB in the end (delta: -4.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2021-11-23 15:59:18,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.44ms. Allocated memory is still 62.9MB. Free memory was 47.3MB in the beginning and 45.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:59:18,157 INFO L158 Benchmark]: Boogie Preprocessor took 24.55ms. Allocated memory is still 62.9MB. Free memory was 45.8MB in the beginning and 44.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:59:18,157 INFO L158 Benchmark]: RCFGBuilder took 345.70ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 35.5MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:59:18,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 62.9MB. Free memory is still 45.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.07ms. Allocated memory is still 62.9MB. Free memory was 43.5MB in the beginning and 47.5MB in the end (delta: -4.0MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.44ms. Allocated memory is still 62.9MB. Free memory was 47.3MB in the beginning and 45.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.55ms. Allocated memory is still 62.9MB. Free memory was 45.8MB in the beginning and 44.7MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.70ms. Allocated memory is still 62.9MB. Free memory was 44.7MB in the beginning and 35.5MB in the end (delta: 9.2MB). 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 15:59:18,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43775b2e-f5db-419d-bad7-fb1412ab8072/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