./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b --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 5211c9fa82ede95ab74fc9c54718f437923c350e1c105ec6d7fa45c8b49537a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-05 23:52:11,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-05 23:52:11,376 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-05 23:52:11,380 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-05 23:52:11,380 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-05 23:52:11,398 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-05 23:52:11,399 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-05 23:52:11,399 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-05 23:52:11,399 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-05 23:52:11,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-05 23:52:11,400 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-05 23:52:11,401 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-05 23:52:11,401 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-05 23:52:11,401 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-05 23:52:11,401 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-05 23:52:11,401 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-05 23:52:11,401 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-05 23:52:11,401 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-05 23:52:11,401 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-05 23:52:11,401 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:52:11,402 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-05 23:52:11,402 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-05 23:52:11,402 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-05 23:52:11,402 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-05 23:52:11,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-05 23:52:11,402 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b 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 -> 5211c9fa82ede95ab74fc9c54718f437923c350e1c105ec6d7fa45c8b49537a3 [2024-12-05 23:52:11,592 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-05 23:52:11,599 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-05 23:52:11,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-05 23:52:11,602 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-05 23:52:11,602 INFO L274 PluginConnector]: CDTParser initialized [2024-12-05 23:52:11,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2024-12-05 23:52:14,175 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/data/636a49e13/09026e5d1cd5456781c47d894256d3ca/FLAG1c5d3b5c0 [2024-12-05 23:52:14,384 INFO L384 CDTParser]: Found 1 translation units. [2024-12-05 23:52:14,384 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c [2024-12-05 23:52:14,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/data/636a49e13/09026e5d1cd5456781c47d894256d3ca/FLAG1c5d3b5c0 [2024-12-05 23:52:14,402 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/data/636a49e13/09026e5d1cd5456781c47d894256d3ca [2024-12-05 23:52:14,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-05 23:52:14,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-05 23:52:14,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-05 23:52:14,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-05 23:52:14,411 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-05 23:52:14,411 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,412 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3be6844c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14, skipping insertion in model container [2024-12-05 23:52:14,412 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-05 23:52:14,530 WARN L250 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_7c0c05a9-b8f1-4184-b683-27e4c5799389/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c[454,467] [2024-12-05 23:52:14,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:52:14,548 INFO L200 MainTranslator]: Completed pre-run [2024-12-05 23:52:14,556 WARN L250 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_7c0c05a9-b8f1-4184-b683-27e4c5799389/sv-benchmarks/c/nla-digbench-scaling/ps2-ll_valuebound2.c[454,467] [2024-12-05 23:52:14,559 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-05 23:52:14,571 INFO L204 MainTranslator]: Completed translation [2024-12-05 23:52:14,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14 WrapperNode [2024-12-05 23:52:14,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-05 23:52:14,572 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-05 23:52:14,572 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-05 23:52:14,572 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-05 23:52:14,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,582 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,593 INFO L138 Inliner]: procedures = 14, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 36 [2024-12-05 23:52:14,594 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-05 23:52:14,594 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-05 23:52:14,594 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-05 23:52:14,594 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-05 23:52:14,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,600 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,600 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,603 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,608 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-05 23:52:14,610 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-05 23:52:14,610 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-05 23:52:14,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-05 23:52:14,611 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,617 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-05 23:52:14,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-05 23:52:14,637 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-05 23:52:14,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-05 23:52:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-05 23:52:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-05 23:52:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-05 23:52:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-05 23:52:14,660 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-12-05 23:52:14,660 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-12-05 23:52:14,702 INFO L234 CfgBuilder]: Building ICFG [2024-12-05 23:52:14,703 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-05 23:52:14,791 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-12-05 23:52:14,791 INFO L283 CfgBuilder]: Performing block encoding [2024-12-05 23:52:14,827 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-05 23:52:14,827 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-05 23:52:14,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:52:14 BoogieIcfgContainer [2024-12-05 23:52:14,828 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-05 23:52:14,828 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-05 23:52:14,829 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-05 23:52:14,836 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-05 23:52:14,837 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:52:14" (1/1) ... [2024-12-05 23:52:14,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-05 23:52:14,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2024-12-05 23:52:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2024-12-05 23:52:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-05 23:52:14,884 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:14,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:52:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:52:14,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:14,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-05 23:52:14,980 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:15,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:15,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 15 states and 20 transitions. [2024-12-05 23:52:15,138 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2024-12-05 23:52:15,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:52:15,141 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:15,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:52:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:15,373 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:15,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:15,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 15 states and 18 transitions. [2024-12-05 23:52:15,646 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 18 transitions. [2024-12-05 23:52:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-05 23:52:15,646 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:15,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:52:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:52:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:15,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-05 23:52:15,686 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:15,784 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-05 23:52:15,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:15,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 22 transitions. [2024-12-05 23:52:15,999 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 22 transitions. [2024-12-05 23:52:15,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-05 23:52:15,999 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:15,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:52:16,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-05 23:52:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:16,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-12-05 23:52:16,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-05 23:52:16,109 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-12-05 23:52:16,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:16,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 19 states and 26 transitions. [2024-12-05 23:52:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 26 transitions. [2024-12-05 23:52:16,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-12-05 23:52:16,306 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-05 23:52:16,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-05 23:52:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-05 23:52:16,483 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-12-05 23:52:17,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-05 23:52:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 14 states and 18 transitions. [2024-12-05 23:52:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2024-12-05 23:52:17,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-05 23:52:17,096 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-05 23:52:17,104 INFO L726 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-12-05 23:52:17,197 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-05 23:52:17,197 INFO L77 FloydHoareUtils]: At program point L27-2(lines 27 36) the Hoare annotation is: true [2024-12-05 23:52:17,197 INFO L77 FloydHoareUtils]: At program point L27-3(lines 27 36) the Hoare annotation is: (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) [2024-12-05 23:52:17,197 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point L28(lines 27 36) the Hoare annotation is: (= (* 2 |ULTIMATE.start_main_~x~0#1|) (+ |ULTIMATE.start_main_~y~0#1| (* |ULTIMATE.start_main_~y~0#1| |ULTIMATE.start_main_~y~0#1|))) [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point L37(line 37) the Hoare annotation is: true [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point L11(lines 11 12) the Hoare annotation is: true [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point L10(lines 10 13) the Hoare annotation is: (or (= __VERIFIER_assert_~cond 0) (and (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond) (= __VERIFIER_assert_~cond 1))) [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 9 15) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 9 15) the Hoare annotation is: (not (and (not (= |__VERIFIER_assert_#in~cond| 0)) (not (= |__VERIFIER_assert_#in~cond| 1)))) [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point L10-2(lines 9 15) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-12-05 23:52:17,198 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2024-12-05 23:52:17,219 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 05.12 11:52:17 ImpRootNode [2024-12-05 23:52:17,219 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-05 23:52:17,220 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-05 23:52:17,220 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-05 23:52:17,220 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-05 23:52:17,220 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 11:52:14" (3/4) ... [2024-12-05 23:52:17,222 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-05 23:52:17,225 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-12-05 23:52:17,229 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-05 23:52:17,229 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-12-05 23:52:17,229 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-05 23:52:17,229 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-05 23:52:17,298 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-05 23:52:17,298 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-05 23:52:17,298 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-05 23:52:17,299 INFO L158 Benchmark]: Toolchain (without parser) took 2892.83ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 93.2MB in the beginning and 196.0MB in the end (delta: -102.9MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-12-05 23:52:17,299 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:52:17,299 INFO L158 Benchmark]: CACSL2BoogieTranslator took 164.50ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.0MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-05 23:52:17,300 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.63ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:52:17,300 INFO L158 Benchmark]: Boogie Preprocessor took 15.35ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.2MB in the end (delta: 649.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:52:17,300 INFO L158 Benchmark]: RCFGBuilder took 217.78ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 68.9MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-05 23:52:17,301 INFO L158 Benchmark]: CodeCheck took 2390.55ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 68.9MB in the beginning and 200.4MB in the end (delta: -131.5MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. [2024-12-05 23:52:17,301 INFO L158 Benchmark]: Witness Printer took 78.52ms. Allocated memory is still 226.5MB. Free memory was 200.4MB in the beginning and 196.0MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-05 23:52:17,303 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 2 procedures, 12 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 73 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 67 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 151 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 312 IncrementalHoareTripleChecker+Invalid, 463 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 151 mSolverCounterUnsat, 41 mSDtfsCounter, 312 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 533 GetRequests, 465 SyntacticMatches, 8 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 182 SizeOfPredicates, 3 NumberOfNonLiveVariables, 165 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 34/44 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, ConComCheckerStatistics: No data available - PositiveResult [Line: 12]: 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 - ProcedureContractResult [Line: 9]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: ((cond == 0) || (cond == 1)) Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory is still 72.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 164.50ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.0MB in the end (delta: 11.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.63ms. Allocated memory is still 117.4MB. Free memory was 82.0MB in the beginning and 80.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 15.35ms. Allocated memory is still 117.4MB. Free memory was 80.9MB in the beginning and 80.2MB in the end (delta: 649.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 217.78ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 68.9MB in the end (delta: 11.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2390.55ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 68.9MB in the beginning and 200.4MB in the end (delta: -131.5MB). Peak memory consumption was 38.2MB. Max. memory is 16.1GB. * Witness Printer took 78.52ms. Allocated memory is still 226.5MB. Free memory was 200.4MB in the beginning and 196.0MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-05 23:52:17,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7c0c05a9-b8f1-4184-b683-27e4c5799389/bin/ukojak-verify-CZk0znPC7b/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