./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/string_concat-noarr.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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/string_concat-noarr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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 30a4b942034eaa47a8fcc8fdf4549d1d63a9a60d59b585da2a353c9626604750 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:56:49,394 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:56:49,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:56:49,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:56:49,476 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:56:49,482 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:56:49,489 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:56:49,492 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:56:49,496 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:56:49,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:56:49,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:56:49,509 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:56:49,511 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:56:49,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:56:49,517 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:56:49,519 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:56:49,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:56:49,529 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:56:49,531 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:56:49,534 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:56:49,539 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:56:49,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:56:49,545 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:56:49,547 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:56:49,557 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:56:49,558 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:56:49,558 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:56:49,561 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:56:49,562 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:56:49,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:56:49,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:56:49,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:56:49,566 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:56:49,567 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:56:49,568 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:56:49,569 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:56:49,569 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:56:49,570 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:56:49,570 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:56:49,571 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:56:49,572 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:56:49,573 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:56:49,619 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:56:49,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:56:49,621 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:56:49,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:56:49,623 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:56:49,623 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:56:49,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:56:49,624 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:56:49,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:56:49,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:56:49,625 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:56:49,626 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:56:49,626 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:56:49,626 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:56:49,627 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:56:49,627 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:56:49,627 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:56:49,627 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:56:49,628 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:56:49,628 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:56:49,628 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:56:49,629 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:49,629 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:56:49,629 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:56:49,630 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:56:49,630 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:56:49,630 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:56:49,630 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:56:49,631 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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30a4b942034eaa47a8fcc8fdf4549d1d63a9a60d59b585da2a353c9626604750 [2021-11-23 15:56:49,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:56:49,957 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:56:49,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:56:49,962 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:56:49,963 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:56:49,964 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/loop-invgen/string_concat-noarr.i [2021-11-23 15:56:50,050 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/8cfa50fac/497914d3a1ef4494b027354703bb0305/FLAG0f92ee863 [2021-11-23 15:56:50,670 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:56:50,671 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/sv-benchmarks/c/loop-invgen/string_concat-noarr.i [2021-11-23 15:56:50,677 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/8cfa50fac/497914d3a1ef4494b027354703bb0305/FLAG0f92ee863 [2021-11-23 15:56:51,044 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/8cfa50fac/497914d3a1ef4494b027354703bb0305 [2021-11-23 15:56:51,047 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:56:51,050 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:56:51,052 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:51,053 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:56:51,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:56:51,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e67fae3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51, skipping insertion in model container [2021-11-23 15:56:51,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:56:51,084 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:56:51,275 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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/sv-benchmarks/c/loop-invgen/string_concat-noarr.i[893,906] [2021-11-23 15:56:51,286 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:51,295 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:56:51,309 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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/sv-benchmarks/c/loop-invgen/string_concat-noarr.i[893,906] [2021-11-23 15:56:51,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:51,326 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:56:51,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51 WrapperNode [2021-11-23 15:56:51,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:51,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:51,329 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:56:51,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:56:51,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,343 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,362 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 53 [2021-11-23 15:56:51,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:51,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:56:51,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:56:51,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:56:51,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,374 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,374 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,377 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,381 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:56:51,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:56:51,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:56:51,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:56:51,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:51" (1/1) ... [2021-11-23 15:56:51,393 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:51,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:56:51,415 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:56:51,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:56:51,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:56:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:56:51,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:56:51,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:56:51,524 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:56:51,526 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:56:51,542 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.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 15:56:51,547 INFO L158 Benchmark]: Toolchain (without parser) took 495.41ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 50.2MB in the beginning and 67.8MB in the end (delta: -17.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:51,548 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 62.5MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:51,549 INFO L158 Benchmark]: CACSL2BoogieTranslator took 275.32ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 76.5MB in the end (delta: -26.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2021-11-23 15:56:51,550 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.38ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 74.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:51,551 INFO L158 Benchmark]: Boogie Preprocessor took 19.62ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 812.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:51,551 INFO L158 Benchmark]: RCFGBuilder took 160.50ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 67.8MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:56:51,555 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory was 62.5MB in the beginning and 62.5MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 275.32ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 50.1MB in the beginning and 76.5MB in the end (delta: -26.4MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.38ms. Allocated memory is still 100.7MB. Free memory was 76.5MB in the beginning and 74.9MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.62ms. Allocated memory is still 100.7MB. Free memory was 74.9MB in the beginning and 74.1MB in the end (delta: 812.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 160.50ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 67.8MB in the end (delta: 6.0MB). Peak memory consumption was 6.3MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:56:51,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/string_concat-noarr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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 30a4b942034eaa47a8fcc8fdf4549d1d63a9a60d59b585da2a353c9626604750 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:56:54,117 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:56:54,123 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:56:54,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:56:54,186 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:56:54,192 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:56:54,194 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:56:54,196 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:56:54,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:56:54,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:56:54,202 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:56:54,204 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:56:54,204 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:56:54,206 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:56:54,208 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:56:54,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:56:54,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:56:54,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:56:54,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:56:54,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:56:54,221 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:56:54,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:56:54,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:56:54,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:56:54,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:56:54,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:56:54,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:56:54,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:56:54,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:56:54,236 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:56:54,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:56:54,237 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:56:54,239 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:56:54,240 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:56:54,242 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:56:54,242 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:56:54,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:56:54,244 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:56:54,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:56:54,257 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:56:54,259 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:56:54,260 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:56:54,313 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:56:54,314 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:56:54,315 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:56:54,315 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:56:54,316 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:56:54,316 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:56:54,316 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:56:54,317 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:56:54,317 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:56:54,317 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:56:54,317 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:56:54,317 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:56:54,318 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:56:54,318 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:56:54,318 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:56:54,318 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:56:54,319 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:56:54,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:56:54,319 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:56:54,319 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:56:54,319 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:56:54,320 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:56:54,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:56:54,320 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:54,320 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:56:54,321 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:56:54,321 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:56:54,321 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:56:54,321 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:56:54,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:56:54,322 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:56:54,322 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:56:54,322 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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30a4b942034eaa47a8fcc8fdf4549d1d63a9a60d59b585da2a353c9626604750 [2021-11-23 15:56:54,709 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:56:54,744 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:56:54,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:56:54,750 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:56:54,751 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:56:54,753 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/loop-invgen/string_concat-noarr.i [2021-11-23 15:56:54,836 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/32347d518/1a967db6859b43118c41b8b46f2febda/FLAGf30bd30b0 [2021-11-23 15:56:55,411 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:56:55,412 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/sv-benchmarks/c/loop-invgen/string_concat-noarr.i [2021-11-23 15:56:55,426 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/32347d518/1a967db6859b43118c41b8b46f2febda/FLAGf30bd30b0 [2021-11-23 15:56:55,759 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/data/32347d518/1a967db6859b43118c41b8b46f2febda [2021-11-23 15:56:55,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:56:55,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:56:55,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:55,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:56:55,773 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:56:55,775 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53ef3b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:55, skipping insertion in model container [2021-11-23 15:56:55,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:55" (1/1) ... [2021-11-23 15:56:55,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:56:55,803 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:56:56,013 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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/sv-benchmarks/c/loop-invgen/string_concat-noarr.i[893,906] [2021-11-23 15:56:56,040 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:56,054 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:56:56,074 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_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/sv-benchmarks/c/loop-invgen/string_concat-noarr.i[893,906] [2021-11-23 15:56:56,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:56:56,112 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:56:56,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56 WrapperNode [2021-11-23 15:56:56,114 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:56:56,115 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:56,116 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:56:56,116 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:56:56,124 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,163 INFO L137 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2021-11-23 15:56:56,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:56:56,165 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:56:56,165 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:56:56,165 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:56:56,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,222 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,224 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:56:56,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:56:56,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:56:56,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:56:56,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:56" (1/1) ... [2021-11-23 15:56:56,244 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:56:56,261 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:56:56,273 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:56:56,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:56:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:56:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:56:56,327 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:56:56,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:56:56,389 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:56:56,390 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:56:56,404 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.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.removeAuxiliaryGoto(CfgBuilder.java:962) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$ProcedureCfgBuilder.buildProcedureCfgFromImplementation(CfgBuilder.java:727) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:266) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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 15:56:56,409 INFO L158 Benchmark]: Toolchain (without parser) took 642.47ms. Allocated memory is still 62.9MB. Free memory was 44.0MB in the beginning and 38.6MB in the end (delta: 5.4MB). Peak memory consumption was 3.3MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,410 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 62.9MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:56,411 INFO L158 Benchmark]: CACSL2BoogieTranslator took 347.62ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 47.2MB in the end (delta: -3.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,412 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.42ms. Allocated memory is still 62.9MB. Free memory was 47.2MB in the beginning and 45.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,413 INFO L158 Benchmark]: Boogie Preprocessor took 68.53ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 44.8MB in the end (delta: 869.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:56:56,414 INFO L158 Benchmark]: RCFGBuilder took 173.06ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 38.6MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-23 15:56:56,419 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 62.9MB. Free memory is still 44.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 347.62ms. Allocated memory is still 62.9MB. Free memory was 43.8MB in the beginning and 47.2MB in the end (delta: -3.4MB). Peak memory consumption was 13.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.42ms. Allocated memory is still 62.9MB. Free memory was 47.2MB in the beginning and 45.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.53ms. Allocated memory is still 62.9MB. Free memory was 45.7MB in the beginning and 44.8MB in the end (delta: 869.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 173.06ms. Allocated memory is still 62.9MB. Free memory was 44.5MB in the beginning and 38.6MB in the end (delta: 5.9MB). Peak memory consumption was 6.3MB. 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.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:56:56,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f28bf888-cc0c-4e61-a6ca-8bcb3595e2d7/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with 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