./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/water_pid.c --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_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/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_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/water_pid.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/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_0970a889-198f-4794-8365-9b5d61b091b6/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 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:54:32,487 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:54:32,575 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-13 16:54:32,581 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:54:32,581 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-13 16:54:32,610 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:54:32,611 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:54:32,612 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-13 16:54:32,612 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:54:32,613 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:54:32,613 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:54:32,613 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:54:32,613 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:54:32,614 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:54:32,614 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:54:32,614 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:54:32,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:54:32,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:54:32,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:54:32,615 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:54:32,615 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 16:54:32,615 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 16:54:32,615 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:54:32,615 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:54:32,616 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:54:32,616 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-13 16:54:32,616 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-13 16:54:32,616 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-13 16:54:32,616 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:54:32,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:54:32,617 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:54:32,617 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:54:32,617 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:54:32,617 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-13 16:54:32,617 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:54:32,617 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_0970a889-198f-4794-8365-9b5d61b091b6/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 -> 934622c50be6b43827f31f94ee6f464812ea7c1827ffb5fb855e650934cdada0 [2024-11-13 16:54:33,056 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:54:33,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:54:33,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:54:33,077 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:54:33,077 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:54:33,079 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/../../sv-benchmarks/c/float-benchs/water_pid.c Unable to find full path for "g++" [2024-11-13 16:54:35,441 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:54:35,766 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:54:35,769 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/sv-benchmarks/c/float-benchs/water_pid.c [2024-11-13 16:54:35,806 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/data/ecf1c6c37/896cc855b7bb4a51814532d68bd92f5b/FLAGc4a16c114 [2024-11-13 16:54:35,837 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/data/ecf1c6c37/896cc855b7bb4a51814532d68bd92f5b [2024-11-13 16:54:35,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:54:35,842 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:54:35,845 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:54:35,845 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:54:35,852 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:54:35,853 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:54:35" (1/1) ... [2024-11-13 16:54:35,854 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25632d70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:35, skipping insertion in model container [2024-11-13 16:54:35,857 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:54:35" (1/1) ... [2024-11-13 16:54:35,878 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:54:36,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:54:36,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:54:36,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:54:36,190 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:54:36,191 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36 WrapperNode [2024-11-13 16:54:36,191 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:54:36,193 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:54:36,193 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:54:36,193 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:54:36,201 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,209 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,229 INFO L138 Inliner]: procedures = 13, calls = 11, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-11-13 16:54:36,230 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:54:36,230 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:54:36,230 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:54:36,231 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:54:36,239 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,239 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,240 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,241 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,246 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,251 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,254 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,255 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,259 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:54:36,261 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:54:36,262 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:54:36,262 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:54:36,265 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-13 16:54:36,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/z3 [2024-11-13 16:54:36,311 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-13 16:54:36,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-13 16:54:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:54:36,351 INFO L130 BoogieDeclarations]: Found specification of procedure y [2024-11-13 16:54:36,351 INFO L138 BoogieDeclarations]: Found implementation of procedure y [2024-11-13 16:54:36,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:54:36,352 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:54:36,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-13 16:54:36,461 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:54:36,463 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:54:36,669 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-13 16:54:36,669 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:54:36,718 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:54:36,719 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:54:36,719 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:54:36 BoogieIcfgContainer [2024-11-13 16:54:36,719 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:54:36,720 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-13 16:54:36,720 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-13 16:54:36,733 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-13 16:54:36,733 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:54:36" (1/1) ... [2024-11-13 16:54:36,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:54:36,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:54:36,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 13 states and 14 transitions. [2024-11-13 16:54:36,802 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2024-11-13 16:54:36,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-13 16:54:36,807 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:54:36,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:54:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:54:37,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:54:37,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:54:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 17 states and 20 transitions. [2024-11-13 16:54:37,237 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2024-11-13 16:54:37,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-13 16:54:37,238 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:54:37,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:54:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:54:37,396 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 16:54:37,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:54:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 18 states and 21 transitions. [2024-11-13 16:54:37,448 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 21 transitions. [2024-11-13 16:54:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-11-13 16:54:37,449 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:54:37,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:54:37,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:54:37,711 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-13 16:54:37,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:54:37,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 22 states and 27 transitions. [2024-11-13 16:54:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2024-11-13 16:54:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 16:54:37,953 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:54:37,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:54:37,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:54:38,126 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-13 16:54:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:54:38,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 21 states and 26 transitions. [2024-11-13 16:54:38,462 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 26 transitions. [2024-11-13 16:54:38,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 16:54:38,463 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-13 16:54:38,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:54:38,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:54:38,658 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 16:54:38,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-13 16:54:38,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 16 states and 18 transitions. [2024-11-13 16:54:38,790 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2024-11-13 16:54:38,790 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 16:54:38,791 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-11-13 16:54:38,807 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-13 16:54:38,877 INFO L77 FloydHoareUtils]: At program point yEXIT(lines 16 20) the Hoare annotation is: true [2024-11-13 16:54:38,877 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(lines 16 20) the Hoare annotation is: true [2024-11-13 16:54:38,878 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) the Hoare annotation is: true [2024-11-13 16:54:38,878 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-13 16:54:38,879 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-13 16:54:38,879 INFO L77 FloydHoareUtils]: At program point L40(line 40) the Hoare annotation is: (<= |ULTIMATE.start_main_~i~0#1| 119) [2024-11-13 16:54:38,879 INFO L77 FloydHoareUtils]: At program point L40-1(line 40) the Hoare annotation is: true [2024-11-13 16:54:38,883 INFO L77 FloydHoareUtils]: At program point L36(line 36) the Hoare annotation is: true [2024-11-13 16:54:38,883 INFO L77 FloydHoareUtils]: At program point L36-1(line 36) the Hoare annotation is: true [2024-11-13 16:54:38,883 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 39) the Hoare annotation is: true [2024-11-13 16:54:38,883 INFO L77 FloydHoareUtils]: At program point L39-2(line 39) the Hoare annotation is: true [2024-11-13 16:54:38,884 INFO L77 FloydHoareUtils]: At program point L39-3(line 39) the Hoare annotation is: true [2024-11-13 16:54:38,884 INFO L77 FloydHoareUtils]: At program point L39-4(lines 39 47) the Hoare annotation is: true [2024-11-13 16:54:38,902 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 13.11 04:54:38 ImpRootNode [2024-11-13 16:54:38,902 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-13 16:54:38,904 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:54:38,904 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:54:38,904 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:54:38,905 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:54:36" (3/4) ... [2024-11-13 16:54:38,908 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:54:38,912 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure y [2024-11-13 16:54:38,921 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-11-13 16:54:38,921 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 16:54:38,921 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 16:54:38,922 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 16:54:39,029 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/witness.graphml [2024-11-13 16:54:39,030 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/bin/ukojak-verify-EEHR8qb7sm/witness.yml [2024-11-13 16:54:39,030 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:54:39,031 INFO L158 Benchmark]: Toolchain (without parser) took 3189.19ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 90.4MB in the end (delta: 28.5MB). Peak memory consumption was 29.0MB. Max. memory is 16.1GB. [2024-11-13 16:54:39,032 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 105.4MB in the end (delta: 216.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:54:39,032 INFO L158 Benchmark]: CACSL2BoogieTranslator took 346.75ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 108.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:54:39,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.22ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:54:39,033 INFO L158 Benchmark]: Boogie Preprocessor took 28.64ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.9MB in the end (delta: 694.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:54:39,033 INFO L158 Benchmark]: RCFGBuilder took 458.37ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 93.7MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:54:39,034 INFO L158 Benchmark]: CodeCheck took 2182.43ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 94.6MB in the end (delta: -851.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:54:39,034 INFO L158 Benchmark]: Witness Printer took 126.13ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 90.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 16:54:39,037 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, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 112 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 73 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 219 IncrementalHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 73 mSolverCounterUnsat, 55 mSDtfsCounter, 219 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 527 GetRequests, 491 SyntacticMatches, 10 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 152 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 37/50 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: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: 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 - ProcedureContractResult [Line: 16]: Procedure Contract for y Derived contract for procedure y. Ensures: (ui == \old(ui)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 167.8MB. Free memory was 105.7MB in the beginning and 105.4MB in the end (delta: 216.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 346.75ms. Allocated memory is still 142.6MB. Free memory was 118.9MB in the beginning and 108.0MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.22ms. Allocated memory is still 142.6MB. Free memory was 108.0MB in the beginning and 107.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 28.64ms. Allocated memory is still 142.6MB. Free memory was 106.6MB in the beginning and 105.9MB in the end (delta: 694.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 458.37ms. Allocated memory is still 142.6MB. Free memory was 105.9MB in the beginning and 93.7MB in the end (delta: 12.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 2182.43ms. Allocated memory is still 142.6MB. Free memory was 93.7MB in the beginning and 94.6MB in the end (delta: -851.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 126.13ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 90.4MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-13 16:54:39,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0970a889-198f-4794-8365-9b5d61b091b6/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