./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-simple/nested_1b.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_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/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_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-simple/nested_1b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/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_e7120bb0-862f-4ab9-8030-697169a6685b/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 de4c7bf005639409d0c5506b91694c0a93e2905c64b2cd28aafb6e9617d859e5 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 04:25:12,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 04:25:12,157 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-12-06 04:25:12,163 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 04:25:12,163 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 04:25:12,187 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 04:25:12,188 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 04:25:12,188 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 04:25:12,189 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 04:25:12,189 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 04:25:12,189 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 04:25:12,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 04:25:12,189 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 04:25:12,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 04:25:12,189 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 04:25:12,190 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 04:25:12,190 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 04:25:12,191 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 04:25:12,191 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 04:25:12,191 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 04:25:12,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:25:12,192 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 04:25:12,192 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 04:25:12,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 04:25:12,192 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 04:25:12,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 04:25:12,192 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_e7120bb0-862f-4ab9-8030-697169a6685b/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 -> de4c7bf005639409d0c5506b91694c0a93e2905c64b2cd28aafb6e9617d859e5 [2024-12-06 04:25:12,497 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 04:25:12,508 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 04:25:12,511 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 04:25:12,512 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 04:25:12,513 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 04:25:12,514 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/loop-simple/nested_1b.c [2024-12-06 04:25:15,756 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/data/ca938c968/06db86359d99466ab25a27144c91ab54/FLAGaba030c31 [2024-12-06 04:25:15,981 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 04:25:15,982 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/sv-benchmarks/c/loop-simple/nested_1b.c [2024-12-06 04:25:15,991 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/data/ca938c968/06db86359d99466ab25a27144c91ab54/FLAGaba030c31 [2024-12-06 04:25:16,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/data/ca938c968/06db86359d99466ab25a27144c91ab54 [2024-12-06 04:25:16,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 04:25:16,015 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 04:25:16,016 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 04:25:16,017 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 04:25:16,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 04:25:16,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a4a728c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16, skipping insertion in model container [2024-12-06 04:25:16,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,041 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 04:25:16,211 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_e7120bb0-862f-4ab9-8030-697169a6685b/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2024-12-06 04:25:16,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:25:16,227 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 04:25:16,242 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_e7120bb0-862f-4ab9-8030-697169a6685b/sv-benchmarks/c/loop-simple/nested_1b.c[674,687] [2024-12-06 04:25:16,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 04:25:16,260 INFO L204 MainTranslator]: Completed translation [2024-12-06 04:25:16,261 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16 WrapperNode [2024-12-06 04:25:16,261 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 04:25:16,262 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 04:25:16,262 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 04:25:16,262 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 04:25:16,270 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,292 INFO L138 Inliner]: procedures = 10, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2024-12-06 04:25:16,293 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 04:25:16,293 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 04:25:16,293 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 04:25:16,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 04:25:16,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,302 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,302 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,305 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,305 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,308 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,309 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,310 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,311 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 04:25:16,312 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 04:25:16,312 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 04:25:16,312 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 04:25:16,313 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 04:25:16,334 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 04:25:16,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 04:25:16,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 04:25:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 04:25:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 04:25:16,378 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 04:25:16,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 04:25:16,431 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 04:25:16,433 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 04:25:16,518 INFO L? ?]: Removed 4 outVars from TransFormulas that were not future-live. [2024-12-06 04:25:16,518 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 04:25:16,546 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 04:25:16,547 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 04:25:16,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:25:16 BoogieIcfgContainer [2024-12-06 04:25:16,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 04:25:16,548 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 04:25:16,548 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 04:25:16,558 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 04:25:16,559 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:25:16" (1/1) ... [2024-12-06 04:25:16,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 04:25:16,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:25:16,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 7 states and 8 transitions. [2024-12-06 04:25:16,620 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2024-12-06 04:25:16,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 04:25:16,622 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:25:16,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:25:16,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:25:16,791 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 04:25:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:25:16,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2024-12-06 04:25:16,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2024-12-06 04:25:16,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-06 04:25:16,831 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:25:16,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:25:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:25:16,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:25:16,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:25:16,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2024-12-06 04:25:16,975 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2024-12-06 04:25:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 04:25:16,975 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:25:16,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:25:16,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:25:17,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:25:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:25:17,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2024-12-06 04:25:17,125 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2024-12-06 04:25:17,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 04:25:17,125 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:25:17,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:25:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:25:17,199 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:25:17,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:25:17,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2024-12-06 04:25:17,267 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-12-06 04:25:17,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-06 04:25:17,267 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:25:17,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:25:17,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:25:17,347 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:25:17,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:25:17,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-12-06 04:25:17,419 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-12-06 04:25:17,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 04:25:17,419 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:25:17,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:25:17,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 04:25:17,507 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 04:25:17,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 04:25:17,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-12-06 04:25:17,592 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-12-06 04:25:17,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-12-06 04:25:17,593 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 04:25:17,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 04:25:17,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:25:17,604 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:25:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:25:17,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:25:17,651 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-06 04:25:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-06 04:25:17,667 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 7 iterations. [2024-12-06 04:25:17,691 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 04:25:17 ImpRootNode [2024-12-06 04:25:17,691 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 04:25:17,692 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 04:25:17,692 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 04:25:17,692 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 04:25:17,693 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 04:25:16" (3/4) ... [2024-12-06 04:25:17,693 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-12-06 04:25:17,725 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 9. [2024-12-06 04:25:17,772 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 04:25:17,772 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 04:25:17,772 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 04:25:17,773 INFO L158 Benchmark]: Toolchain (without parser) took 1758.46ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 106.3MB in the end (delta: 10.7MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2024-12-06 04:25:17,774 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:25:17,774 INFO L158 Benchmark]: CACSL2BoogieTranslator took 245.04ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 106.3MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:25:17,775 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.63ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 105.2MB in the end (delta: 824.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:25:17,775 INFO L158 Benchmark]: Boogie Preprocessor took 17.89ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 104.4MB in the end (delta: 789.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:25:17,775 INFO L158 Benchmark]: RCFGBuilder took 235.64ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 95.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:25:17,776 INFO L158 Benchmark]: CodeCheck took 1142.98ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 110.2MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 04:25:17,776 INFO L158 Benchmark]: Witness Printer took 80.37ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 106.3MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 04:25:17,779 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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 52 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 79 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 99 IncrementalHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 79 mSolverCounterUnsat, 18 mSDtfsCounter, 99 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 287 GetRequests, 255 SyntacticMatches, 10 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 33 ConstructedInterpolants, 0 QuantifiedInterpolants, 75 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 1 PerfectInterpolantSequences, 0/35 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: 23]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] int a = 6; [L19] a = 0 VAL [a=0] [L19] COND TRUE a < 6 [L19] ++a VAL [a=1] [L19] COND TRUE a < 6 [L19] ++a VAL [a=2] [L19] COND TRUE a < 6 [L19] ++a VAL [a=3] [L19] COND TRUE a < 6 [L19] ++a VAL [a=4] [L19] COND TRUE a < 6 [L19] ++a VAL [a=5] [L19] COND TRUE a < 6 [L19] ++a VAL [a=6] [L19] COND FALSE !(a < 6) VAL [a=6] [L22] COND TRUE a == 6 [L23] reach_error() * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 245.04ms. Allocated memory is still 142.6MB. Free memory was 116.7MB in the beginning and 106.3MB in the end (delta: 10.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.63ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 105.2MB in the end (delta: 824.5kB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.89ms. Allocated memory is still 142.6MB. Free memory was 105.2MB in the beginning and 104.4MB in the end (delta: 789.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 235.64ms. Allocated memory is still 142.6MB. Free memory was 104.4MB in the beginning and 95.2MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1142.98ms. Allocated memory is still 142.6MB. Free memory was 95.2MB in the beginning and 110.2MB in the end (delta: -15.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.37ms. Allocated memory is still 142.6MB. Free memory was 110.2MB in the beginning and 106.3MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be incorrect! [2024-12-06 04:25:17,797 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e7120bb0-862f-4ab9-8030-697169a6685b/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE