./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifeqn3f.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_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/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_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/array-fpi/ifeqn3f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/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_8825211d-c440-4bb9-a614-c67f345ab3ea/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 a857b372cfe9289a49ef385694b13655c2cf51f01faafc79ddd271caed9dd0b5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:08:21,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:08:21,150 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 04:08:21,154 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:08:21,155 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:08:21,173 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:08:21,174 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:08:21,174 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:08:21,175 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:08:21,175 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:08:21,175 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:08:21,175 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:08:21,175 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:08:21,175 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:08:21,175 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:08:21,175 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:08:21,175 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:08:21,176 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:08:21,176 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:08:21,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:08:21,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:08:21,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:08:21,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:08:21,177 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:08:21,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:08:21,177 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_8825211d-c440-4bb9-a614-c67f345ab3ea/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 -> a857b372cfe9289a49ef385694b13655c2cf51f01faafc79ddd271caed9dd0b5 [2024-12-06 04:08:21,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:08:21,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:08:21,414 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:08:21,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:08:21,416 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:08:21,417 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/array-fpi/ifeqn3f.c [2024-12-06 04:08:24,050 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/data/605407898/9bb1c0e2f36044e9a820db84072cd752/FLAGafc2e372d [2024-12-06 04:08:24,247 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:08:24,248 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/sv-benchmarks/c/array-fpi/ifeqn3f.c [2024-12-06 04:08:24,254 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/data/605407898/9bb1c0e2f36044e9a820db84072cd752/FLAGafc2e372d [2024-12-06 04:08:24,266 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/data/605407898/9bb1c0e2f36044e9a820db84072cd752 [2024-12-06 04:08:24,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:08:24,269 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:08:24,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:08:24,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:08:24,273 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:08:24,274 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,275 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7384ebc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24, skipping insertion in model container [2024-12-06 04:08:24,275 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,287 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:08:24,422 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_8825211d-c440-4bb9-a614-c67f345ab3ea/sv-benchmarks/c/array-fpi/ifeqn3f.c[590,603] [2024-12-06 04:08:24,441 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:08:24,450 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:08:24,460 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_8825211d-c440-4bb9-a614-c67f345ab3ea/sv-benchmarks/c/array-fpi/ifeqn3f.c[590,603] [2024-12-06 04:08:24,467 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:08:24,481 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:08:24,481 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24 WrapperNode [2024-12-06 04:08:24,481 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:08:24,482 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:08:24,482 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:08:24,482 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:08:24,488 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,494 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,509 INFO L138 Inliner]: procedures = 16, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2024-12-06 04:08:24,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:08:24,510 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:08:24,510 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:08:24,510 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:08:24,517 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,517 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,519 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,519 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,523 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,524 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,527 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,528 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,530 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:08:24,531 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:08:24,531 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:08:24,531 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:08:24,532 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:08:24,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:08:24,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:08:24,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:08:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:08:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:08:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-12-06 04:08:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-12-06 04:08:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:08:24,583 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:08:24,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-12-06 04:08:24,641 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:08:24,643 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:08:24,763 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-06 04:08:24,763 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:08:24,817 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:08:24,817 INFO L312 CfgBuilder]: Removed 3 assume(true) statements. [2024-12-06 04:08:24,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:24 BoogieIcfgContainer [2024-12-06 04:08:24,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:08:24,818 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:08:24,819 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:08:24,825 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:08:24,825 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:24" (1/1) ... [2024-12-06 04:08:24,831 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:08:24,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:24,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 11 states and 15 transitions. [2024-12-06 04:08:24,867 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2024-12-06 04:08:24,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:08:24,869 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:24,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:24,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:25,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:25,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:25,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 12 states and 16 transitions. [2024-12-06 04:08:25,103 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 16 transitions. [2024-12-06 04:08:25,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:08:25,103 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:25,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:25,202 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 04:08:25,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:25,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 13 states and 18 transitions. [2024-12-06 04:08:25,270 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 18 transitions. [2024-12-06 04:08:25,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:08:25,270 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:25,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:08:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:25,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-06 04:08:25,349 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:25,427 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-06 04:08:25,494 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 04:08:25,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:25,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 15 states and 23 transitions. [2024-12-06 04:08:25,870 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2024-12-06 04:08:25,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-12-06 04:08:25,870 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:25,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:25,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:26,070 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 04:08:26,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:26,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 22 states and 38 transitions. [2024-12-06 04:08:26,883 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 38 transitions. [2024-12-06 04:08:26,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-06 04:08:26,885 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:26,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:27,069 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:27,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:27,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 23 states and 36 transitions. [2024-12-06 04:08:27,560 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 36 transitions. [2024-12-06 04:08:27,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-12-06 04:08:27,561 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:27,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:27,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:08:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:27,639 INFO L256 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-12-06 04:08:27,642 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:27,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-12-06 04:08:27,714 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-06 04:08:27,784 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-06 04:08:27,944 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-12-06 04:08:28,034 INFO L349 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2024-12-06 04:08:28,035 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 33 treesize of output 38 [2024-12-06 04:08:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:31,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:31,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 30 states and 48 transitions. [2024-12-06 04:08:31,257 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 48 transitions. [2024-12-06 04:08:31,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-12-06 04:08:31,257 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:31,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:31,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:31,520 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-12-06 04:08:32,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:32,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 33 states and 53 transitions. [2024-12-06 04:08:32,415 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 53 transitions. [2024-12-06 04:08:32,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-12-06 04:08:32,416 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:32,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:32,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:08:32,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:32,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-12-06 04:08:32,519 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-06 04:08:32,527 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-12-06 04:08:32,541 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-12-06 04:08:32,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2024-12-06 04:08:32,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:32,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:32,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:32,688 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-12-06 04:08:32,689 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 43 [2024-12-06 04:08:33,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,041 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-12-06 04:08:33,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 1 case distinctions, treesize of input 45 treesize of output 53 [2024-12-06 04:08:33,211 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,232 INFO L349 Elim1Store]: treesize reduction 60, result has 24.1 percent of original size [2024-12-06 04:08:33,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 12 case distinctions, treesize of input 52 treesize of output 63 [2024-12-06 04:08:33,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-12-06 04:08:33,465 INFO L349 Elim1Store]: treesize reduction 190, result has 10.0 percent of original size [2024-12-06 04:08:33,465 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 9 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 30 case distinctions, treesize of input 79 treesize of output 99 [2024-12-06 04:08:34,072 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:08:36,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:36,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2024-12-06 04:08:36,809 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2024-12-06 04:08:36,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-12-06 04:08:36,810 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:36,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:36,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:08:37,000 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-12-06 04:08:39,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:08:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 38 states and 58 transitions. [2024-12-06 04:08:39,104 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 58 transitions. [2024-12-06 04:08:39,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-06 04:08:39,105 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:08:39,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:08:39,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-06 04:08:39,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:39,235 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:08:39,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:08:39,282 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 10 iterations. [2024-12-06 04:08:39,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:08:39 ImpRootNode [2024-12-06 04:08:39,307 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:08:39,308 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:08:39,308 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:08:39,308 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:08:39,308 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:08:24" (3/4) ... [2024-12-06 04:08:39,309 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 04:08:39,349 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 30. [2024-12-06 04:08:39,408 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:08:39,408 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8825211d-c440-4bb9-a614-c67f345ab3ea/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:08:39,409 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:08:39,409 INFO L158 Benchmark]: Toolchain (without parser) took 15140.17ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 118.1MB in the beginning and 118.8MB in the end (delta: -717.6kB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2024-12-06 04:08:39,410 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 83.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:39,410 INFO L158 Benchmark]: CACSL2BoogieTranslator took 211.36ms. Allocated memory is still 142.6MB. Free memory was 117.8MB in the beginning and 106.7MB in the end (delta: 11.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:08:39,410 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.49ms. Allocated memory is still 142.6MB. Free memory was 106.4MB in the beginning and 105.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:39,410 INFO L158 Benchmark]: Boogie Preprocessor took 19.91ms. Allocated memory is still 142.6MB. Free memory was 105.3MB in the beginning and 104.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:39,411 INFO L158 Benchmark]: RCFGBuilder took 287.14ms. Allocated memory is still 142.6MB. Free memory was 104.3MB in the beginning and 88.9MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 04:08:39,411 INFO L158 Benchmark]: CodeCheck took 14488.65ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 88.9MB in the beginning and 123.4MB in the end (delta: -34.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-12-06 04:08:39,411 INFO L158 Benchmark]: Witness Printer took 100.93ms. Allocated memory is still 176.2MB. Free memory was 123.4MB in the beginning and 118.8MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:08:39,413 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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 14.4s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 300 SdHoareTripleChecker+Valid, 2.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 103 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 560 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1327 IncrementalHoareTripleChecker+Invalid, 1887 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 560 mSolverCounterUnsat, 45 mSDtfsCounter, 1327 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1138 GetRequests, 905 SyntacticMatches, 23 SemanticMatches, 210 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20639 ImplicationChecksByTransitivity, 11.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 102 ConstructedInterpolants, 14 QuantifiedInterpolants, 1263 SizeOfPredicates, 16 NumberOfNonLiveVariables, 315 ConjunctsInSsa, 84 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 18/59 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] i=0 VAL [N=3, a={-2:0}, b={-1:0}, i=0] [L31] COND TRUE i