./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB --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 b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 16:47:30,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 16:47:30,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 16:47:30,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 16:47:30,501 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 16:47:30,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 16:47:30,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 16:47:30,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 16:47:30,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 16:47:30,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 16:47:30,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 16:47:30,515 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 16:47:30,516 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 16:47:30,517 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 16:47:30,519 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 16:47:30,520 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 16:47:30,522 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 16:47:30,523 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 16:47:30,525 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 16:47:30,528 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 16:47:30,530 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 16:47:30,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 16:47:30,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 16:47:30,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 16:47:30,540 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 16:47:30,540 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 16:47:30,541 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 16:47:30,542 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 16:47:30,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 16:47:30,544 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 16:47:30,544 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 16:47:30,545 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 16:47:30,546 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 16:47:30,547 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 16:47:30,549 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 16:47:30,549 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 16:47:30,550 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 16:47:30,551 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 16:47:30,551 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 16:47:30,552 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 16:47:30,553 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 16:47:30,554 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/config/svcomp-Reach-32bit-Kojak_Default.epf [2022-10-17 16:47:30,586 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 16:47:30,586 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 16:47:30,587 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 16:47:30,588 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2022-10-17 16:47:30,588 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 16:47:30,589 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 16:47:30,589 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 16:47:30,590 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 16:47:30,590 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 16:47:30,590 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 16:47:30,590 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 16:47:30,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 16:47:30,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 16:47:30,591 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 16:47:30,591 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 16:47:30,592 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 16:47:30,592 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 16:47:30,592 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 16:47:30,593 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 16:47:30,593 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 16:47:30,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 16:47:30,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:47:30,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 16:47:30,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 16:47:30,595 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 16:47:30,595 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 16:47:30,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 16:47:30,595 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 16:47:30,596 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_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b38f47c3dcd7731e15cfc2cee00261f352bac0ed4fe94aeeb81a5c76defb252d [2022-10-17 16:47:30,854 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 16:47:30,880 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 16:47:30,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 16:47:30,884 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 16:47:30,885 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 16:47:30,887 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2022-10-17 16:47:30,951 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/data/258bdb0c0/9dc892425f78420681229f22e3cf70cd/FLAG884b435a9 [2022-10-17 16:47:31,383 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 16:47:31,384 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/sv-benchmarks/c/loop-invgen/NetBSD_loop.i [2022-10-17 16:47:31,390 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/data/258bdb0c0/9dc892425f78420681229f22e3cf70cd/FLAG884b435a9 [2022-10-17 16:47:31,785 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/data/258bdb0c0/9dc892425f78420681229f22e3cf70cd [2022-10-17 16:47:31,788 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 16:47:31,792 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 16:47:31,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 16:47:31,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 16:47:31,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 16:47:31,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:47:31" (1/1) ... [2022-10-17 16:47:31,804 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad63f58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:31, skipping insertion in model container [2022-10-17 16:47:31,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 04:47:31" (1/1) ... [2022-10-17 16:47:31,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 16:47:31,831 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 16:47:32,048 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_ad419b79-5750-49ba-a410-101e69e94833/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2022-10-17 16:47:32,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:47:32,085 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 16:47:32,100 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_ad419b79-5750-49ba-a410-101e69e94833/sv-benchmarks/c/loop-invgen/NetBSD_loop.i[893,906] [2022-10-17 16:47:32,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 16:47:32,126 INFO L208 MainTranslator]: Completed translation [2022-10-17 16:47:32,126 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32 WrapperNode [2022-10-17 16:47:32,127 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 16:47:32,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 16:47:32,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 16:47:32,130 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 16:47:32,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,146 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,165 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 37 [2022-10-17 16:47:32,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 16:47:32,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 16:47:32,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 16:47:32,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 16:47:32,175 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,175 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,177 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,186 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 16:47:32,195 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 16:47:32,195 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 16:47:32,195 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 16:47:32,207 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 16:47:32,224 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 16:47:32,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 16:47:32,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 16:47:32,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 16:47:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 16:47:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 16:47:32,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 16:47:32,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-17 16:47:32,300 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-17 16:47:32,361 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 16:47:32,363 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 16:47:32,475 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 16:47:32,500 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 16:47:32,501 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 16:47:32,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:32 BoogieIcfgContainer [2022-10-17 16:47:32,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 16:47:32,505 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 16:47:32,505 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 16:47:32,516 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 16:47:32,519 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:32" (1/1) ... [2022-10-17 16:47:32,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 16:47:32,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:32,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 14 states and 17 transitions. [2022-10-17 16:47:32,590 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2022-10-17 16:47:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 16:47:32,591 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:32,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:32,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:32,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:47:33,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 18 states and 22 transitions. [2022-10-17 16:47:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-10-17 16:47:33,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 16:47:33,086 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:33,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:33,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:33,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 16:47:33,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:33,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 29 transitions. [2022-10-17 16:47:33,434 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2022-10-17 16:47:33,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 16:47:33,435 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:33,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:33,630 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-17 16:47:33,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:33,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 22 states and 32 transitions. [2022-10-17 16:47:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 32 transitions. [2022-10-17 16:47:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 16:47:33,751 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:33,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:33,968 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 16:47:34,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:34,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 26 states and 38 transitions. [2022-10-17 16:47:34,217 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 38 transitions. [2022-10-17 16:47:34,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-17 16:47:34,219 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:34,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:34,370 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-10-17 16:47:34,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:34,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 23 states and 30 transitions. [2022-10-17 16:47:34,614 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-10-17 16:47:34,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-10-17 16:47:34,615 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 16:47:34,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 16:47:34,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 16:47:34,795 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-10-17 16:47:35,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 16:47:35,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 17 states and 23 transitions. [2022-10-17 16:47:35,345 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2022-10-17 16:47:35,346 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 16:47:35,346 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 7 iterations. [2022-10-17 16:47:35,364 INFO L754 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2022-10-17 16:47:35,406 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:47:35,410 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2022-10-17 16:47:35,411 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 04:47:35 ImpRootNode [2022-10-17 16:47:35,411 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 16:47:35,412 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 16:47:35,412 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 16:47:35,413 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 16:47:35,413 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 04:47:32" (3/4) ... [2022-10-17 16:47:35,417 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 16:47:35,425 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2022-10-17 16:47:35,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-10-17 16:47:35,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-10-17 16:47:35,431 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-10-17 16:47:35,432 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 16:47:35,486 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 16:47:35,486 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 16:47:35,487 INFO L158 Benchmark]: Toolchain (without parser) took 3694.75ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 78.0MB in the beginning and 75.8MB in the end (delta: 2.2MB). Peak memory consumption was 26.2MB. Max. memory is 16.1GB. [2022-10-17 16:47:35,488 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:47:35,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.69ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 96.2MB in the end (delta: -18.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:47:35,489 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.41ms. Allocated memory is still 123.7MB. Free memory was 96.2MB in the beginning and 95.2MB in the end (delta: 982.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 16:47:35,490 INFO L158 Benchmark]: Boogie Preprocessor took 28.59ms. Allocated memory is still 123.7MB. Free memory was 94.7MB in the beginning and 94.1MB in the end (delta: 624.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:47:35,490 INFO L158 Benchmark]: RCFGBuilder took 308.56ms. Allocated memory is still 123.7MB. Free memory was 93.6MB in the beginning and 83.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 16:47:35,491 INFO L158 Benchmark]: CodeCheck took 2907.09ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 83.6MB in the beginning and 77.8MB in the end (delta: 5.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-10-17 16:47:35,492 INFO L158 Benchmark]: Witness Printer took 74.37ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 16:47:35,494 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 178 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 36 mSDsluCounter, 74 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 139 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 453 IncrementalHoareTripleChecker+Invalid, 592 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 139 mSolverCounterUnsat, 74 mSDtfsCounter, 453 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 892 GetRequests, 837 SyntacticMatches, 5 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 731 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 129 NumberOfCodeBlocks, 129 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 123 ConstructedInterpolants, 0 QuantifiedInterpolants, 251 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 4 PerfectInterpolantSequences, 126/133 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 123.7MB. Free memory is still 94.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.69ms. Allocated memory is still 123.7MB. Free memory was 77.9MB in the beginning and 96.2MB in the end (delta: -18.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.41ms. Allocated memory is still 123.7MB. Free memory was 96.2MB in the beginning and 95.2MB in the end (delta: 982.7kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.59ms. Allocated memory is still 123.7MB. Free memory was 94.7MB in the beginning and 94.1MB in the end (delta: 624.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 308.56ms. Allocated memory is still 123.7MB. Free memory was 93.6MB in the beginning and 83.6MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2907.09ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 83.6MB in the beginning and 77.8MB in the end (delta: 5.8MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 74.37ms. Allocated memory is still 148.9MB. Free memory was 77.8MB in the beginning and 75.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2022-10-17 16:47:35,536 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad419b79-5750-49ba-a410-101e69e94833/bin/ukojak-92XMlrwhuB/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: TRUE