./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 460506a141aea77ccc3566603556d6eb3051804be1f001a5f66c36de73c2b800 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:39,364 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:39,496 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:57:39,505 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:57:39,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:57:39,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:39,548 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:39,549 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:39,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:39,556 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:39,556 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:39,557 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:39,557 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:57:39,559 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:57:39,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:57:39,560 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:39,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:39,561 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:39,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:39,562 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:57:39,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:39,563 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:39,565 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:39,566 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:39,566 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:39,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:39,568 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:39,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:39,569 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:39,569 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:39,571 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:57:39,571 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:57:39,571 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:39,571 INFO L153 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_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 460506a141aea77ccc3566603556d6eb3051804be1f001a5f66c36de73c2b800 [2023-11-19 03:57:39,976 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:40,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:40,029 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:40,031 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:40,031 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:40,032 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c [2023-11-19 03:57:43,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:57:43,334 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:57:43,335 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c [2023-11-19 03:57:43,351 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data/e6da69e7f/4d0e32cd81cc4d2da3efa33edd10a91f/FLAG0322da5ad [2023-11-19 03:57:43,373 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data/e6da69e7f/4d0e32cd81cc4d2da3efa33edd10a91f [2023-11-19 03:57:43,380 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:57:43,383 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:57:43,388 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:43,388 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:57:43,394 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:57:43,395 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,397 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@211e702a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43, skipping insertion in model container [2023-11-19 03:57:43,398 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,437 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:57:43,635 WARN L240 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_421da59a-98c7-4137-b6d4-1f042bf07cdc/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c[552,565] [2023-11-19 03:57:43,677 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:43,693 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:57:43,711 WARN L240 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_421da59a-98c7-4137-b6d4-1f042bf07cdc/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c[552,565] [2023-11-19 03:57:43,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:57:43,760 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:57:43,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43 WrapperNode [2023-11-19 03:57:43,761 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:57:43,763 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:43,763 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:57:43,763 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:57:43,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,779 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,800 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-11-19 03:57:43,800 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:57:43,801 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:57:43,801 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:57:43,801 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:57:43,815 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,816 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,825 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,828 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,835 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,838 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,840 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:57:43,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:57:43,846 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:57:43,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:57:43,847 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:57:43" (1/1) ... [2023-11-19 03:57:43,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:43,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:57:43,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:57:43,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:57:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:57:43,937 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:57:43,937 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:57:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:57:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:57:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:57:43,938 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:57:43,938 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:57:44,009 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:57:44,012 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:57:44,261 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:57:44,304 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:57:44,304 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 03:57:44,309 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:44 BoogieIcfgContainer [2023-11-19 03:57:44,309 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:57:44,310 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:57:44,310 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:57:44,321 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:57:44,321 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:57:44" (1/1) ... [2023-11-19 03:57:44,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:57:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:44,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-19 03:57:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-19 03:57:44,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:57:44,390 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:44,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:57:44,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:57:44,731 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:57:44,941 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:57:45,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:57:45,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 34 states and 53 transitions. [2023-11-19 03:57:45,083 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2023-11-19 03:57:45,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:57:45,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:57:45,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:57:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-11-19 03:57:55,194 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) 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:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) 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) [2023-11-19 03:57:55,198 INFO L158 Benchmark]: Toolchain (without parser) took 11814.35ms. Allocated memory is still 161.5MB. Free memory was 131.6MB in the beginning and 98.0MB in the end (delta: 33.6MB). Peak memory consumption was 32.7MB. Max. memory is 16.1GB. [2023-11-19 03:57:55,198 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:55,200 INFO L158 Benchmark]: CACSL2BoogieTranslator took 373.99ms. Allocated memory is still 161.5MB. Free memory was 131.3MB in the beginning and 123.6MB in the end (delta: 7.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. [2023-11-19 03:57:55,201 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.53ms. Allocated memory is still 161.5MB. Free memory was 123.6MB in the beginning and 122.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:57:55,201 INFO L158 Benchmark]: Boogie Preprocessor took 43.59ms. Allocated memory is still 161.5MB. Free memory was 122.3MB in the beginning and 120.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:57:55,202 INFO L158 Benchmark]: RCFGBuilder took 463.80ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 126.6MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-19 03:57:55,202 INFO L158 Benchmark]: CodeCheck took 10886.35ms. Allocated memory is still 161.5MB. Free memory was 126.6MB in the beginning and 98.0MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2023-11-19 03:57:55,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 134.2MB. Free memory is still 106.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 373.99ms. Allocated memory is still 161.5MB. Free memory was 131.3MB in the beginning and 123.6MB in the end (delta: 7.8MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.53ms. Allocated memory is still 161.5MB. Free memory was 123.6MB in the beginning and 122.3MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.59ms. Allocated memory is still 161.5MB. Free memory was 122.3MB in the beginning and 120.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 463.80ms. Allocated memory is still 161.5MB. Free memory was 120.8MB in the beginning and 126.6MB in the end (delta: -5.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 10886.35ms. Allocated memory is still 161.5MB. Free memory was 126.6MB in the beginning and 98.0MB in the end (delta: 28.6MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-11-19 03:57:55,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --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 460506a141aea77ccc3566603556d6eb3051804be1f001a5f66c36de73c2b800 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:57:57,970 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:57:58,108 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:57:58,168 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:57:58,169 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:57:58,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:57:58,172 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:57:58,173 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:57:58,174 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:57:58,180 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:57:58,180 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:57:58,181 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:57:58,181 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:57:58,183 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:57:58,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:57:58,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:57:58,185 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:57:58,185 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:57:58,185 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:57:58,187 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:57:58,187 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:57:58,188 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:57:58,188 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:57:58,189 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:57:58,189 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:57:58,190 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:57:58,190 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:57:58,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:57:58,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:57:58,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:57:58,193 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:57:58,193 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:57:58,193 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:57:58,194 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:57:58,194 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:57:58,195 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:57:58,195 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:57:58,195 INFO L153 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_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 460506a141aea77ccc3566603556d6eb3051804be1f001a5f66c36de73c2b800 [2023-11-19 03:57:58,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:57:58,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:57:58,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:57:58,675 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:57:58,676 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:57:58,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c [2023-11-19 03:58:01,791 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:58:02,032 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:58:02,033 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c [2023-11-19 03:58:02,043 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data/0c593551e/9d3ed76ceb8142669c3096d2fd6630c5/FLAG8f89775f4 [2023-11-19 03:58:02,061 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/data/0c593551e/9d3ed76ceb8142669c3096d2fd6630c5 [2023-11-19 03:58:02,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:58:02,065 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:58:02,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:02,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:58:02,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:58:02,073 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,074 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@737702fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02, skipping insertion in model container [2023-11-19 03:58:02,075 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,099 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:58:02,273 WARN L240 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_421da59a-98c7-4137-b6d4-1f042bf07cdc/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c[552,565] [2023-11-19 03:58:02,298 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:02,313 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:58:02,329 WARN L240 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_421da59a-98c7-4137-b6d4-1f042bf07cdc/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound10.c[552,565] [2023-11-19 03:58:02,339 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:58:02,356 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:58:02,356 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02 WrapperNode [2023-11-19 03:58:02,356 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:58:02,358 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:02,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:58:02,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:58:02,366 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,376 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,398 INFO L138 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2023-11-19 03:58:02,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:58:02,399 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:58:02,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:58:02,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:58:02,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,410 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,423 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,424 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,434 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,436 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,437 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:58:02,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:58:02,441 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:58:02,441 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:58:02,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:58:02,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:58:02,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:58:02,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:58:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:58:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:58:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-19 03:58:02,517 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-19 03:58:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:58:02,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:58:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-19 03:58:02,519 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-19 03:58:02,607 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:58:02,610 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:58:02,843 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:58:02,880 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:58:02,880 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-19 03:58:02,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:02 BoogieIcfgContainer [2023-11-19 03:58:02,889 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:58:02,896 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:58:02,896 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:58:02,922 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:58:02,923 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:58:02" (1/1) ... [2023-11-19 03:58:02,934 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:58:03,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:03,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2023-11-19 03:58:03,019 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2023-11-19 03:58:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:58:03,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:03,031 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:03,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:03,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:03,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:58:03,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:03,298 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:58:03,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:03,414 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:58:03,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:58:04,030 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2023-11-19 03:58:04,041 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:58:05,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:05,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 34 states and 53 transitions. [2023-11-19 03:58:05,007 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 53 transitions. [2023-11-19 03:58:05,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:58:05,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:05,010 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:05,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:05,015 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:05,044 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:58:05,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:05,236 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:58:05,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:05,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-19 03:58:05,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:58:06,058 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-19 03:58:06,061 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:58:06,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 03:58:07,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:07,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 40 states and 69 transitions. [2023-11-19 03:58:07,780 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 69 transitions. [2023-11-19 03:58:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:58:07,782 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:07,782 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:07,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:07,783 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:07,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 03:58:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:07,937 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:58:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:07,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:58:07,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:58:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2023-11-19 03:58:10,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 03:58:12,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:12,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 42 states and 73 transitions. [2023-11-19 03:58:12,877 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 73 transitions. [2023-11-19 03:58:12,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 03:58:12,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:12,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:12,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:12,881 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:12,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 03:58:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:12,949 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:58:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:13,006 INFO L262 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:58:13,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:58:13,103 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-19 03:58:13,106 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:58:13,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 03:58:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:13,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 43 states and 75 transitions. [2023-11-19 03:58:13,934 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 75 transitions. [2023-11-19 03:58:13,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 03:58:13,936 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:13,937 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:13,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:13,938 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:13,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 03:58:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:14,018 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:58:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:14,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:58:14,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:58:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-19 03:58:16,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 03:58:29,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-19 03:58:30,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:58:30,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 46 states and 80 transitions. [2023-11-19 03:58:30,251 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 80 transitions. [2023-11-19 03:58:30,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-11-19 03:58:30,253 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:58:30,254 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:58:30,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:58:30,255 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:58:30,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 03:58:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:30,442 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:58:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:58:30,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-19 03:58:30,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:58:31,907 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-19 03:58:31,912 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:58:31,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_421da59a-98c7-4137-b6d4-1f042bf07cdc/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0