./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-invgen/id_build.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm --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 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 23:10:14,238 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 23:10:14,329 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-13 23:10:14,338 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 23:10:14,338 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 23:10:14,376 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 23:10:14,376 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 23:10:14,377 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 23:10:14,377 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 23:10:14,377 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 23:10:14,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 23:10:14,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 23:10:14,377 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 23:10:14,378 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 23:10:14,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 23:10:14,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 23:10:14,380 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 23:10:14,380 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 23:10:14,380 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 23:10:14,382 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 23:10:14,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:10:14,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 23:10:14,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 23:10:14,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 23:10:14,382 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 23:10:14,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 23:10:14,382 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_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm 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 -> 2c4c8975bee6324b0c0486aa99ba8be369d6762a33e8dd5b012191d5fa43c106 [2024-11-13 23:10:14,758 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 23:10:14,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 23:10:14,773 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 23:10:14,774 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 23:10:14,774 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 23:10:14,778 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/loop-invgen/id_build.i Unable to find full path for "g++" [2024-11-13 23:10:16,654 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 23:10:16,897 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 23:10:16,898 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/sv-benchmarks/c/loop-invgen/id_build.i [2024-11-13 23:10:16,907 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/data/0bb1e99b8/f5353866e0444582b3ed3db95b01beae/FLAGdbe186882 [2024-11-13 23:10:16,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/data/0bb1e99b8/f5353866e0444582b3ed3db95b01beae [2024-11-13 23:10:16,924 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 23:10:16,925 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 23:10:16,927 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 23:10:16,927 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 23:10:16,932 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 23:10:16,933 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:10:16" (1/1) ... [2024-11-13 23:10:16,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b3274dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:16, skipping insertion in model container [2024-11-13 23:10:16,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 11:10:16" (1/1) ... [2024-11-13 23:10:16,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 23:10:17,132 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_dde44223-887b-4215-b1e8-e9f04a12ab9e/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2024-11-13 23:10:17,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:10:17,162 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 23:10:17,173 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_dde44223-887b-4215-b1e8-e9f04a12ab9e/sv-benchmarks/c/loop-invgen/id_build.i[893,906] [2024-11-13 23:10:17,179 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 23:10:17,195 INFO L204 MainTranslator]: Completed translation [2024-11-13 23:10:17,196 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17 WrapperNode [2024-11-13 23:10:17,196 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 23:10:17,197 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 23:10:17,197 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 23:10:17,197 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 23:10:17,204 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,212 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,228 INFO L138 Inliner]: procedures = 16, calls = 8, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 34 [2024-11-13 23:10:17,229 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 23:10:17,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 23:10:17,231 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 23:10:17,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 23:10:17,238 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,241 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,250 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,253 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,254 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,255 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 23:10:17,257 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 23:10:17,258 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 23:10:17,258 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 23:10:17,260 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 23:10:17,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 23:10:17,300 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 23:10:17,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 23:10:17,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 23:10:17,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 23:10:17,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 23:10:17,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 23:10:17,334 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-13 23:10:17,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-13 23:10:17,402 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 23:10:17,404 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 23:10:17,539 INFO L? ?]: Removed 7 outVars from TransFormulas that were not future-live. [2024-11-13 23:10:17,539 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 23:10:17,568 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 23:10:17,568 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 23:10:17,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:10:17 BoogieIcfgContainer [2024-11-13 23:10:17,568 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 23:10:17,569 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 23:10:17,569 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 23:10:17,580 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 23:10:17,581 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:10:17" (1/1) ... [2024-11-13 23:10:17,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 23:10:17,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:10:17,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2024-11-13 23:10:17,644 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2024-11-13 23:10:17,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 23:10:17,646 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:10:17,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:10:17,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:10:17,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:10:18,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:10:18,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 17 states and 21 transitions. [2024-11-13 23:10:18,131 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2024-11-13 23:10:18,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 23:10:18,134 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:10:18,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:10:18,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:10:18,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 23:10:18,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:10:18,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 21 states and 30 transitions. [2024-11-13 23:10:18,520 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 30 transitions. [2024-11-13 23:10:18,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 23:10:18,520 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:10:18,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:10:18,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:10:18,659 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 23:10:18,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:10:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 19 states and 25 transitions. [2024-11-13 23:10:18,984 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2024-11-13 23:10:18,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-13 23:10:18,984 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 23:10:18,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 23:10:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 23:10:19,128 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 23:10:19,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 23:10:19,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 11 states and 13 transitions. [2024-11-13 23:10:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-11-13 23:10:19,172 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 23:10:19,172 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2024-11-13 23:10:19,184 INFO L729 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2024-11-13 23:10:19,326 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 23:10:19,326 INFO L77 FloydHoareUtils]: At program point L29(line 29) the Hoare annotation is: true [2024-11-13 23:10:19,326 INFO L77 FloydHoareUtils]: At program point L29-1(line 29) the Hoare annotation is: (not (and (<= |ULTIMATE.start_main_~nlen~0#1| |ULTIMATE.start_main_~i~0#1|) (< 0 (+ |ULTIMATE.start_main_~i~0#1| 1)))) [2024-11-13 23:10:19,326 INFO L77 FloydHoareUtils]: At program point L27-2(lines 27 32) the Hoare annotation is: true [2024-11-13 23:10:19,327 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 23:10:19,329 INFO L77 FloydHoareUtils]: At program point L30(line 30) the Hoare annotation is: (not (and (<= (+ |ULTIMATE.start_main_~i~0#1| 1) 0) (< |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~nlen~0#1|))) [2024-11-13 23:10:19,329 INFO L77 FloydHoareUtils]: At program point L28-2(lines 28 31) the Hoare annotation is: true [2024-11-13 23:10:19,329 INFO L77 FloydHoareUtils]: At program point L18-2(lines 17 22) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-13 23:10:19,329 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertEXIT(lines 17 22) the Hoare annotation is: (not (= |__VERIFIER_assert_#in~cond| 0)) [2024-11-13 23:10:19,330 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 17 22) the Hoare annotation is: true [2024-11-13 23:10:19,330 INFO L77 FloydHoareUtils]: At program point L19(line 19) the Hoare annotation is: true [2024-11-13 23:10:19,330 INFO L77 FloydHoareUtils]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 19) the Hoare annotation is: true [2024-11-13 23:10:19,330 INFO L77 FloydHoareUtils]: At program point L18(lines 18 20) the Hoare annotation is: (not (and (not (= __VERIFIER_assert_~cond 0)) (not (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)))) [2024-11-13 23:10:19,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 11:10:19 ImpRootNode [2024-11-13 23:10:19,347 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 23:10:19,349 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 23:10:19,349 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 23:10:19,349 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 23:10:19,350 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 11:10:17" (3/4) ... [2024-11-13 23:10:19,352 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 23:10:19,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-11-13 23:10:19,361 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 23:10:19,362 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 23:10:19,362 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 23:10:19,363 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 23:10:19,445 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 23:10:19,445 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 23:10:19,445 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 23:10:19,449 INFO L158 Benchmark]: Toolchain (without parser) took 2521.78ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 53.4MB in the end (delta: 39.2MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2024-11-13 23:10:19,450 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:10:19,450 INFO L158 Benchmark]: CACSL2BoogieTranslator took 269.48ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 23:10:19,451 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.88ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:10:19,452 INFO L158 Benchmark]: Boogie Preprocessor took 26.24ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.4MB in the end (delta: 452.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:10:19,452 INFO L158 Benchmark]: RCFGBuilder took 311.10ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 69.2MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 23:10:19,452 INFO L158 Benchmark]: CodeCheck took 1778.19ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 57.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. [2024-11-13 23:10:19,454 INFO L158 Benchmark]: Witness Printer took 96.36ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 53.4MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 23:10:19,456 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, 13 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 34 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 176 IncrementalHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 54 mSDtfsCounter, 176 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 454 GetRequests, 427 SyntacticMatches, 7 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 25/33 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 17]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Ensures: (cond != 0) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 269.48ms. Allocated memory is still 117.4MB. Free memory was 92.6MB in the beginning and 81.1MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.88ms. Allocated memory is still 117.4MB. Free memory was 81.1MB in the beginning and 79.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 26.24ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 79.4MB in the end (delta: 452.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 311.10ms. Allocated memory is still 117.4MB. Free memory was 79.4MB in the beginning and 69.2MB in the end (delta: 10.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1778.19ms. Allocated memory is still 117.4MB. Free memory was 69.2MB in the beginning and 57.8MB in the end (delta: 11.4MB). Peak memory consumption was 12.3MB. Max. memory is 16.1GB. * Witness Printer took 96.36ms. Allocated memory is still 117.4MB. Free memory was 57.8MB in the beginning and 53.4MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 23:10:19,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dde44223-887b-4215-b1e8-e9f04a12ab9e/bin/ukojak-verify-EEHR8qb7sm/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