./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/nest-if3.i --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_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/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_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/nest-if3.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/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_5efe77ea-87fd-4a15-b414-9b01ea113357/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 ff6ed2162f27809b742c891ab6e2d783f8472921e0d39d2ecd3fd1d3f6661283 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:45:48,344 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:45:48,484 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:45:48,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:45:48,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:45:48,538 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:45:48,539 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:45:48,540 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:45:48,541 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:45:48,548 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:45:48,549 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:45:48,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:45:48,551 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:45:48,553 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:45:48,553 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:45:48,554 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:45:48,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:45:48,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:45:48,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:45:48,556 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:45:48,557 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:45:48,558 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:45:48,558 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:45:48,559 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:45:48,559 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:45:48,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:45:48,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:48,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:45:48,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:45:48,563 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:45:48,565 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:45:48,565 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:45:48,565 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:45:48,566 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_5efe77ea-87fd-4a15-b414-9b01ea113357/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff6ed2162f27809b742c891ab6e2d783f8472921e0d39d2ecd3fd1d3f6661283 [2023-11-19 02:45:48,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:45:48,945 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:45:48,949 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:45:48,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:45:48,951 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:45:48,952 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/loop-invgen/nest-if3.i [2023-11-19 02:45:52,697 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:45:52,989 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:45:52,990 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/sv-benchmarks/c/loop-invgen/nest-if3.i [2023-11-19 02:45:53,001 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/data/7ec81462d/bfa110713bfe4686936ddbb170e05780/FLAG01dd4d06f [2023-11-19 02:45:53,030 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/data/7ec81462d/bfa110713bfe4686936ddbb170e05780 [2023-11-19 02:45:53,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:45:53,040 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:45:53,046 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:53,046 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:45:53,053 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:45:53,054 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f736b45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53, skipping insertion in model container [2023-11-19 02:45:53,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,093 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:45:53,273 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_5efe77ea-87fd-4a15-b414-9b01ea113357/sv-benchmarks/c/loop-invgen/nest-if3.i[893,906] [2023-11-19 02:45:53,289 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:53,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:45:53,315 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_5efe77ea-87fd-4a15-b414-9b01ea113357/sv-benchmarks/c/loop-invgen/nest-if3.i[893,906] [2023-11-19 02:45:53,320 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:45:53,338 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:45:53,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53 WrapperNode [2023-11-19 02:45:53,339 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:45:53,340 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:53,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:45:53,341 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:45:53,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,357 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,376 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 58 [2023-11-19 02:45:53,376 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:45:53,377 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:45:53,377 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:45:53,378 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:45:53,387 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,389 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,389 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,393 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,397 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,399 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,400 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,402 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:45:53,403 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:45:53,403 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:45:53,404 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:45:53,405 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:45:53,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:45:53,441 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:45:53,451 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:45:53,492 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:45:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:45:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:45:53,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:45:53,576 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:45:53,579 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:45:53,754 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:45:53,797 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:45:53,798 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 02:45:53,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:53 BoogieIcfgContainer [2023-11-19 02:45:53,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:45:53,804 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:45:53,804 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:45:53,817 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:45:53,817 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:53" (1/1) ... [2023-11-19 02:45:53,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:45:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:53,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 12 states and 17 transitions. [2023-11-19 02:45:53,904 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 17 transitions. [2023-11-19 02:45:53,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 02:45:53,906 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:53,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:54,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:54,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:45:54,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:54,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2023-11-19 02:45:54,479 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2023-11-19 02:45:54,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 02:45:54,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:54,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:45:55,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:55,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 18 states and 33 transitions. [2023-11-19 02:45:55,437 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 33 transitions. [2023-11-19 02:45:55,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 02:45:55,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:55,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:55,565 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:45:55,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:55,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 18 states and 32 transitions. [2023-11-19 02:45:55,754 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 32 transitions. [2023-11-19 02:45:55,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:45:55,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:55,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:55,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:56,145 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:45:56,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:56,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 20 states and 41 transitions. [2023-11-19 02:45:56,605 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 41 transitions. [2023-11-19 02:45:56,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:45:56,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:56,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:56,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:56,838 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:45:57,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:57,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 24 states and 52 transitions. [2023-11-19 02:45:57,553 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 52 transitions. [2023-11-19 02:45:57,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:45:57,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:57,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:57,771 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-19 02:45:58,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:58,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 26 states and 57 transitions. [2023-11-19 02:45:58,448 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 57 transitions. [2023-11-19 02:45:58,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:45:58,449 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:58,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:58,705 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 02:45:59,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:45:59,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 28 states and 62 transitions. [2023-11-19 02:45:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 62 transitions. [2023-11-19 02:45:59,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 02:45:59,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:45:59,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:45:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:45:59,610 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 02:46:00,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:00,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 31 states and 73 transitions. [2023-11-19 02:46:00,813 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 73 transitions. [2023-11-19 02:46:00,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 02:46:00,815 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:00,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:00,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:00,923 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-19 02:46:01,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:01,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 32 states and 76 transitions. [2023-11-19 02:46:01,288 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 76 transitions. [2023-11-19 02:46:01,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 02:46:01,289 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:01,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:01,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:46:03,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:03,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 37 states and 89 transitions. [2023-11-19 02:46:03,500 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 89 transitions. [2023-11-19 02:46:03,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:46:03,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:46:03,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:46:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:46:03,578 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-11-19 02:46:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:46:03,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 28 states and 63 transitions. [2023-11-19 02:46:03,930 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 63 transitions. [2023-11-19 02:46:03,938 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:46:03,938 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 12 iterations. [2023-11-19 02:46:03,952 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 02:46:04,203 INFO L560 CodeCheckObserver]: Invariant with dag size 12 [2023-11-19 02:46:04,210 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 02:46:04,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~l~0 [2023-11-19 02:46:04,211 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~i~0 [2023-11-19 02:46:04,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~n~0 [2023-11-19 02:46:04,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~k~0 [2023-11-19 02:46:04,212 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: unknown boogie variable ~l~0 [2023-11-19 02:46:04,213 INFO L560 CodeCheckObserver]: Invariant with dag size 20 [2023-11-19 02:46:04,216 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:46:04,216 INFO L560 CodeCheckObserver]: Invariant with dag size 9 [2023-11-19 02:46:04,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:46:04 ImpRootNode [2023-11-19 02:46:04,217 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:46:04,218 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:46:04,218 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:46:04,218 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:46:04,219 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:45:53" (3/4) ... [2023-11-19 02:46:04,222 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:46:04,230 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2023-11-19 02:46:04,231 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-19 02:46:04,231 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 02:46:04,231 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:46:04,379 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:46:04,382 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:46:04,382 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:46:04,383 INFO L158 Benchmark]: Toolchain (without parser) took 11342.91ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 106.9MB in the beginning and 72.3MB in the end (delta: 34.6MB). Peak memory consumption was 68.1MB. Max. memory is 16.1GB. [2023-11-19 02:46:04,384 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 113.2MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:46:04,384 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.95ms. Allocated memory is still 148.9MB. Free memory was 106.9MB in the beginning and 96.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:46:04,385 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.13ms. Allocated memory is still 148.9MB. Free memory was 96.3MB in the beginning and 94.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:46:04,386 INFO L158 Benchmark]: Boogie Preprocessor took 24.92ms. Allocated memory is still 148.9MB. Free memory was 94.6MB in the beginning and 93.8MB in the end (delta: 809.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:46:04,386 INFO L158 Benchmark]: RCFGBuilder took 400.21ms. Allocated memory is still 148.9MB. Free memory was 93.8MB in the beginning and 82.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:46:04,388 INFO L158 Benchmark]: CodeCheck took 10413.29ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 82.2MB in the beginning and 76.5MB in the end (delta: 5.7MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. [2023-11-19 02:46:04,389 INFO L158 Benchmark]: Witness Printer took 164.36ms. Allocated memory is still 180.4MB. Free memory was 76.5MB in the beginning and 72.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 02:46:04,391 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.1s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 335 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 195 mSDsluCounter, 99 SdHoareTripleChecker+Invalid, 3.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 22 mSDsCounter, 421 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1743 IncrementalHoareTripleChecker+Invalid, 2164 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 421 mSolverCounterUnsat, 77 mSDtfsCounter, 1743 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1726 GetRequests, 1542 SyntacticMatches, 50 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7006 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 143 ConstructedInterpolants, 0 QuantifiedInterpolants, 438 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 1 PerfectInterpolantSequences, 49/100 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]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: null - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((n + 1) < (k + l)) && (1 <= i)) || (((1 <= i) && !(((k == 1) && (i <= (l + 1))))) && (n < (k + l)))) || ((1 <= i) && (1 <= l))) - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (((n + 1) < (k + l)) || (1 <= l)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 113.2MB. Free memory is still 57.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.95ms. Allocated memory is still 148.9MB. Free memory was 106.9MB in the beginning and 96.3MB in the end (delta: 10.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.13ms. Allocated memory is still 148.9MB. Free memory was 96.3MB in the beginning and 94.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.92ms. Allocated memory is still 148.9MB. Free memory was 94.6MB in the beginning and 93.8MB in the end (delta: 809.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 400.21ms. Allocated memory is still 148.9MB. Free memory was 93.8MB in the beginning and 82.2MB in the end (delta: 11.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 10413.29ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 82.2MB in the beginning and 76.5MB in the end (delta: 5.7MB). Peak memory consumption was 38.7MB. Max. memory is 16.1GB. * Witness Printer took 164.36ms. Allocated memory is still 180.4MB. Free memory was 76.5MB in the beginning and 72.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~l~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~i~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~n~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~k~0 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: unknown boogie variable ~l~0 RESULT: Ultimate proved your program to be correct! [2023-11-19 02:46:04,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5efe77ea-87fd-4a15-b414-9b01ea113357/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 Writing output log to file Ultimate.log Result: TRUE