./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9 --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 1e1d72742850b95338b71e8d041fa264ac4d7956cbe86d6603297a369e94cb76 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:27:15,526 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:27:15,598 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-12-03 01:27:15,603 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:27:15,604 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:27:15,628 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:27:15,629 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-03 01:27:15,630 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-12-03 01:27:15,631 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:27:15,631 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:27:15,632 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:27:15,632 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:27:15,633 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:27:15,633 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:27:15,634 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:27:15,634 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:27:15,635 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:27:15,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:27:15,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:27:15,636 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:27:15,637 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:27:15,638 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:27:15,638 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:27:15,639 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:27:15,639 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:27:15,639 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:27:15,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:27:15,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:27:15,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:27:15,641 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-03 01:27:15,642 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:27:15,642 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:27:15,643 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-03 01:27:15,643 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_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e1d72742850b95338b71e8d041fa264ac4d7956cbe86d6603297a369e94cb76 [2023-12-03 01:27:15,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:27:15,926 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:27:15,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:27:15,930 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:27:15,931 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:27:15,932 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound1.c [2023-12-03 01:27:18,953 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:27:19,147 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:27:19,148 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound1.c [2023-12-03 01:27:19,156 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/data/e2f4bc613/f7fb8264d47f4b549115ff927d63e677/FLAG7f6c7bb24 [2023-12-03 01:27:19,177 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/data/e2f4bc613/f7fb8264d47f4b549115ff927d63e677 [2023-12-03 01:27:19,180 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:27:19,181 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:27:19,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:27:19,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:27:19,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:27:19,188 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,189 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c27522 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19, skipping insertion in model container [2023-12-03 01:27:19,189 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,210 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:27:19,368 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_0644413a-83ae-4304-bd3f-d50d29584ad6/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound1.c[597,610] [2023-12-03 01:27:19,390 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:27:19,402 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:27:19,417 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_0644413a-83ae-4304-bd3f-d50d29584ad6/sv-benchmarks/c/nla-digbench-scaling/bresenham-ll_valuebound1.c[597,610] [2023-12-03 01:27:19,426 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:27:19,442 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:27:19,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19 WrapperNode [2023-12-03 01:27:19,443 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:27:19,444 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:27:19,444 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:27:19,444 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:27:19,451 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,457 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,475 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 52 [2023-12-03 01:27:19,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:27:19,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:27:19,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:27:19,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:27:19,486 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,486 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,487 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,488 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,497 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,500 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:27:19,501 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:27:19,501 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:27:19,502 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:27:19,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:27:19,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:27:19,540 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:27:19,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:27:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:27:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-03 01:27:19,588 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-03 01:27:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:27:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:27:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:27:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-03 01:27:19,589 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-03 01:27:19,672 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:27:19,674 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:27:19,835 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:27:19,888 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:27:19,888 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-03 01:27:19,890 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:27:19 BoogieIcfgContainer [2023-12-03 01:27:19,890 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:27:19,891 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:27:19,891 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:27:19,899 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:27:19,899 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:27:19" (1/1) ... [2023-12-03 01:27:19,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:27:19,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-12-03 01:27:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-12-03 01:27:19,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:27:19,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:19,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:20,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:27:20,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:20,269 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:27:20,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 24 states and 31 transitions. [2023-12-03 01:27:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 31 transitions. [2023-12-03 01:27:20,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 01:27:20,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:20,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:20,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:20,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:27:20,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:20,588 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:27:21,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:21,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 27 states and 38 transitions. [2023-12-03 01:27:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2023-12-03 01:27:21,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-12-03 01:27:21,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:21,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:21,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:21,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 01:27:21,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:21,759 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:27:23,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:23,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 34 states and 58 transitions. [2023-12-03 01:27:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 58 transitions. [2023-12-03 01:27:23,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:27:23,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:23,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:23,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 01:27:23,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:24,308 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:27:25,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:25,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 38 states and 69 transitions. [2023-12-03 01:27:25,460 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 69 transitions. [2023-12-03 01:27:25,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:27:25,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:25,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:25,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:25,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-03 01:27:25,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:26,108 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:27:27,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:27,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 41 states and 78 transitions. [2023-12-03 01:27:27,384 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 78 transitions. [2023-12-03 01:27:27,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:27:27,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:27,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:27,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:27,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 43 conjunts are in the unsatisfiable core [2023-12-03 01:27:27,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:28,691 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-03 01:27:30,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:30,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 45 states and 92 transitions. [2023-12-03 01:27:30,799 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 92 transitions. [2023-12-03 01:27:30,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:27:30,801 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:30,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:30,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:30,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:27:30,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-03 01:27:31,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:31,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 45 states and 89 transitions. [2023-12-03 01:27:31,685 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 89 transitions. [2023-12-03 01:27:31,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:27:31,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:31,687 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:31,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:31,726 INFO L262 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:27:31,728 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:31,789 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-12-03 01:27:32,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:32,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 47 states and 94 transitions. [2023-12-03 01:27:32,509 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 94 transitions. [2023-12-03 01:27:32,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:27:32,510 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:27:32,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:27:32,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:27:32,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 41 conjunts are in the unsatisfiable core [2023-12-03 01:27:32,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:27:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 14 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-12-03 01:27:34,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:27:34,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 28 states and 37 transitions. [2023-12-03 01:27:34,111 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 37 transitions. [2023-12-03 01:27:34,112 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-12-03 01:27:34,112 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2023-12-03 01:27:34,122 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-12-03 01:27:34,409 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:27:34,412 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-12-03 01:27:34,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 03.12 01:27:34 ImpRootNode [2023-12-03 01:27:34,413 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-12-03 01:27:34,413 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-12-03 01:27:34,413 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-12-03 01:27:34,413 INFO L274 PluginConnector]: Witness Printer initialized [2023-12-03 01:27:34,414 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:27:19" (3/4) ... [2023-12-03 01:27:34,415 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-12-03 01:27:34,418 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2023-12-03 01:27:34,419 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2023-12-03 01:27:34,422 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2023-12-03 01:27:34,422 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2023-12-03 01:27:34,422 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-12-03 01:27:34,423 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-12-03 01:27:34,514 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/witness.graphml [2023-12-03 01:27:34,515 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/witness.yml [2023-12-03 01:27:34,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-12-03 01:27:34,516 INFO L158 Benchmark]: Toolchain (without parser) took 15334.33ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 127.7MB in the beginning and 67.6MB in the end (delta: 60.0MB). Peak memory consumption was 128.9MB. Max. memory is 16.1GB. [2023-12-03 01:27:34,516 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:27:34,517 INFO L158 Benchmark]: CACSL2BoogieTranslator took 261.00ms. Allocated memory is still 155.2MB. Free memory was 127.7MB in the beginning and 117.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:27:34,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.04ms. Allocated memory is still 155.2MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-12-03 01:27:34,518 INFO L158 Benchmark]: Boogie Preprocessor took 23.45ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 114.4MB in the end (delta: 727.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:27:34,519 INFO L158 Benchmark]: RCFGBuilder took 388.73ms. Allocated memory is still 155.2MB. Free memory was 114.4MB in the beginning and 126.1MB in the end (delta: -11.7MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2023-12-03 01:27:34,519 INFO L158 Benchmark]: CodeCheck took 14522.13ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 126.1MB in the beginning and 72.9MB in the end (delta: 53.3MB). Peak memory consumption was 123.2MB. Max. memory is 16.1GB. [2023-12-03 01:27:34,520 INFO L158 Benchmark]: Witness Printer took 101.97ms. Allocated memory is still 224.4MB. Free memory was 72.9MB in the beginning and 67.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-12-03 01:27:34,523 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 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.2s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 541 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 169 mSDsluCounter, 215 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 426 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1575 IncrementalHoareTripleChecker+Invalid, 2001 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 426 mSolverCounterUnsat, 185 mSDtfsCounter, 1575 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2462 GetRequests, 2273 SyntacticMatches, 61 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7052 ImplicationChecksByTransitivity, 9.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 252 NumberOfCodeBlocks, 252 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 243 ConstructedInterpolants, 0 QuantifiedInterpolants, 2579 SizeOfPredicates, 53 NumberOfNonLiveVariables, 834 ConjunctsInSsa, 237 ConjunctsInUnsatCore, 9 InterpolantComputations, 1 PerfectInterpolantSequences, 121/170 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: 16]: 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: 50]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory is still 98.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 261.00ms. Allocated memory is still 155.2MB. Free memory was 127.7MB in the beginning and 117.2MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.04ms. Allocated memory is still 155.2MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.45ms. Allocated memory is still 155.2MB. Free memory was 115.1MB in the beginning and 114.4MB in the end (delta: 727.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 388.73ms. Allocated memory is still 155.2MB. Free memory was 114.4MB in the beginning and 126.1MB in the end (delta: -11.7MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * CodeCheck took 14522.13ms. Allocated memory was 155.2MB in the beginning and 224.4MB in the end (delta: 69.2MB). Free memory was 126.1MB in the beginning and 72.9MB in the end (delta: 53.3MB). Peak memory consumption was 123.2MB. Max. memory is 16.1GB. * Witness Printer took 101.97ms. Allocated memory is still 224.4MB. Free memory was 72.9MB in the beginning and 67.6MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-12-03 01:27:34,550 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0644413a-83ae-4304-bd3f-d50d29584ad6/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE