./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/loop-acceleration/array_2-1-simple.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/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_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/loop-acceleration/array_2-1-simple.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ef2ac183abfa5be888591001d2f7376a659c701d3e7fb64cad1cba56a829d8b3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 21:09:52,639 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 21:09:52,703 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 21:09:52,708 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 21:09:52,709 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 21:09:52,757 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 21:09:52,758 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 21:09:52,758 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 21:09:52,759 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 21:09:52,759 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 21:09:52,759 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 21:09:52,759 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 21:09:52,759 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 21:09:52,760 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 21:09:52,760 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 21:09:52,760 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 21:09:52,760 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 21:09:52,760 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 21:09:52,761 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 21:09:52,761 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 21:09:52,761 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 21:09:52,761 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 21:09:52,761 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 21:09:52,761 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 21:09:52,761 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 21:09:52,761 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 21:09:52,762 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 21:09:52,762 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 21:09:52,762 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 21:09:52,762 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:09:52,762 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 21:09:52,762 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 21:09:52,762 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 21:09:52,762 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 21:09:52,763 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 21:09:52,763 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_6cfc0faf-3b4b-4c78-be97-6251aed206a6/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 ! overflow) ) 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 -> ef2ac183abfa5be888591001d2f7376a659c701d3e7fb64cad1cba56a829d8b3 [2024-11-13 21:09:53,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 21:09:53,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 21:09:53,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 21:09:53,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 21:09:53,187 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 21:09:53,189 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/loop-acceleration/array_2-1-simple.i Unable to find full path for "g++" [2024-11-13 21:09:55,396 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 21:09:55,688 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 21:09:55,692 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/sv-benchmarks/c/loop-acceleration/array_2-1-simple.i [2024-11-13 21:09:55,699 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/data/106000fcb/23240947954946d188bf0f3630ae46e6/FLAG3b1f9a1be [2024-11-13 21:09:55,992 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/data/106000fcb/23240947954946d188bf0f3630ae46e6 [2024-11-13 21:09:55,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 21:09:55,997 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 21:09:56,000 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 21:09:56,002 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 21:09:56,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 21:09:56,010 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:09:55" (1/1) ... [2024-11-13 21:09:56,013 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5454162d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56, skipping insertion in model container [2024-11-13 21:09:56,014 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 09:09:55" (1/1) ... [2024-11-13 21:09:56,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 21:09:56,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:09:56,333 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 21:09:56,545 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 21:09:56,585 INFO L204 MainTranslator]: Completed translation [2024-11-13 21:09:56,586 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56 WrapperNode [2024-11-13 21:09:56,586 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 21:09:56,587 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 21:09:56,587 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 21:09:56,587 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 21:09:56,594 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:56,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:56,894 INFO L138 Inliner]: procedures = 15, calls = 4112, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 4138 [2024-11-13 21:09:56,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 21:09:56,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 21:09:56,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 21:09:56,895 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 21:09:56,904 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:56,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:56,944 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:56,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:57,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:57,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:57,134 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:57,152 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:57,183 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 21:09:57,185 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 21:09:57,185 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 21:09:57,185 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 21:09:57,187 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 09:09:56" (1/1) ... [2024-11-13 21:09:57,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 21:09:57,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 21:09:57,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 21:09:57,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 21:09:57,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 21:09:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 21:09:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-13 21:09:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-13 21:09:57,264 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 21:09:57,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 21:09:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-13 21:09:57,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-13 21:09:57,344 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 21:09:57,346 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 21:10:03,861 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-13 21:10:03,861 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 21:10:04,296 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 21:10:04,298 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 21:10:04,299 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:10:04 BoogieIcfgContainer [2024-11-13 21:10:04,299 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 21:10:04,300 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 21:10:04,300 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 21:10:04,312 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 21:10:04,312 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:10:04" (1/1) ... [2024-11-13 21:10:04,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 21:10:04,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:10:04,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2024-11-13 21:10:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2024-11-13 21:10:04,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-13 21:10:04,395 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:10:04,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:10:05,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:10:07,185 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 21:10:07,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:10:07,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-11-13 21:10:07,598 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-13 21:10:07,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-13 21:10:07,599 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:10:07,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:10:08,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:10:09,167 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 21:10:09,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:10:09,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-11-13 21:10:09,195 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-11-13 21:10:09,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-13 21:10:09,196 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:10:09,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:10:09,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:10:11,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:10:11,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:10:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-13 21:10:11,372 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-13 21:10:11,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-13 21:10:11,376 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:10:11,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:10:11,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:10:12,479 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 21:10:12,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:10:12,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2024-11-13 21:10:12,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-11-13 21:10:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-11-13 21:10:12,701 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 21:10:12,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 21:10:13,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 21:10:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 21:10:14,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 21:10:14,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-13 21:10:14,660 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-13 21:10:14,660 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 21:10:14,661 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-13 21:10:14,671 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-13 21:10:14,779 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2024-11-13 21:10:14,779 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 21:10:14,780 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 21:10:14,783 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2024-11-13 21:10:14,784 INFO L77 FloydHoareUtils]: At program point L24-2(line 24) the Hoare annotation is: (or (= |ULTIMATE.start_main_#t~post2#1| 0) (and (<= |ULTIMATE.start_main_#t~post2#1| 2047) (<= 1 |ULTIMATE.start_main_#t~post2#1|))) [2024-11-13 21:10:14,784 INFO L77 FloydHoareUtils]: At program point L24-3(line 24) the Hoare annotation is: (or (= |ULTIMATE.start_main_#t~post2#1| 0) (and (<= |ULTIMATE.start_main_#t~post2#1| 2047) (<= 1 |ULTIMATE.start_main_#t~post2#1|))) [2024-11-13 21:10:14,784 INFO L77 FloydHoareUtils]: At program point L24-4(lines 24 27) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_~i~0#1| 0)) (< |ULTIMATE.start_main_~i~0#1| 1))) [2024-11-13 21:10:14,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 09:10:14 ImpRootNode [2024-11-13 21:10:14,804 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 21:10:14,804 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 21:10:14,805 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 21:10:14,805 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 21:10:14,806 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 09:10:04" (3/4) ... [2024-11-13 21:10:14,811 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 21:10:14,877 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-13 21:10:14,884 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-13 21:10:14,890 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 21:10:14,897 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 21:10:15,260 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 21:10:15,260 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 21:10:15,260 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 21:10:15,262 INFO L158 Benchmark]: Toolchain (without parser) took 19264.78ms. Allocated memory was 109.1MB in the beginning and 763.4MB in the end (delta: 654.3MB). Free memory was 83.5MB in the beginning and 497.4MB in the end (delta: -413.9MB). Peak memory consumption was 235.8MB. Max. memory is 16.1GB. [2024-11-13 21:10:15,263 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 21:10:15,264 INFO L158 Benchmark]: CACSL2BoogieTranslator took 586.00ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 72.7MB in the end (delta: 10.9MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. [2024-11-13 21:10:15,265 INFO L158 Benchmark]: Boogie Procedure Inliner took 307.66ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 46.5MB in the end (delta: 26.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-13 21:10:15,266 INFO L158 Benchmark]: Boogie Preprocessor took 287.84ms. Allocated memory is still 109.1MB. Free memory was 46.5MB in the beginning and 42.6MB in the end (delta: 3.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. [2024-11-13 21:10:15,266 INFO L158 Benchmark]: RCFGBuilder took 7114.57ms. Allocated memory was 109.1MB in the beginning and 360.7MB in the end (delta: 251.7MB). Free memory was 42.6MB in the beginning and 292.4MB in the end (delta: -249.7MB). Peak memory consumption was 207.1MB. Max. memory is 16.1GB. [2024-11-13 21:10:15,267 INFO L158 Benchmark]: CodeCheck took 10503.97ms. Allocated memory was 360.7MB in the beginning and 763.4MB in the end (delta: 402.7MB). Free memory was 292.4MB in the beginning and 535.0MB in the end (delta: -242.6MB). Peak memory consumption was 159.5MB. Max. memory is 16.1GB. [2024-11-13 21:10:15,268 INFO L158 Benchmark]: Witness Printer took 456.61ms. Allocated memory is still 763.4MB. Free memory was 535.0MB in the beginning and 497.4MB in the end (delta: 37.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-11-13 21:10:15,271 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 2.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 139 IncrementalHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 0 mSDtfsCounter, 139 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 212 GetRequests, 184 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.2s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 6.8s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 5/12 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: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: !((i != 0) && (i < 1)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 83.9MB. Free memory is still 41.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 586.00ms. Allocated memory is still 109.1MB. Free memory was 83.5MB in the beginning and 72.7MB in the end (delta: 10.9MB). Peak memory consumption was 63.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 307.66ms. Allocated memory is still 109.1MB. Free memory was 72.7MB in the beginning and 46.5MB in the end (delta: 26.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 287.84ms. Allocated memory is still 109.1MB. Free memory was 46.5MB in the beginning and 42.6MB in the end (delta: 3.8MB). Peak memory consumption was 22.2MB. Max. memory is 16.1GB. * RCFGBuilder took 7114.57ms. Allocated memory was 109.1MB in the beginning and 360.7MB in the end (delta: 251.7MB). Free memory was 42.6MB in the beginning and 292.4MB in the end (delta: -249.7MB). Peak memory consumption was 207.1MB. Max. memory is 16.1GB. * CodeCheck took 10503.97ms. Allocated memory was 360.7MB in the beginning and 763.4MB in the end (delta: 402.7MB). Free memory was 292.4MB in the beginning and 535.0MB in the end (delta: -242.6MB). Peak memory consumption was 159.5MB. Max. memory is 16.1GB. * Witness Printer took 456.61ms. Allocated memory is still 763.4MB. Free memory was 535.0MB in the beginning and 497.4MB in the end (delta: 37.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 21:10:15,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cfc0faf-3b4b-4c78-be97-6251aed206a6/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