./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/Muller_Kahan.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/Muller_Kahan.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b --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 61ce2c272542663cace3442e405f7ab093d2a72e636da199b8b44596c79af6c9 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-06 01:42:52,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-06 01:42:52,906 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-12-06 01:42:52,910 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-06 01:42:52,910 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-12-06 01:42:52,928 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-06 01:42:52,928 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-06 01:42:52,929 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-12-06 01:42:52,929 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-06 01:42:52,929 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-06 01:42:52,929 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-06 01:42:52,929 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-06 01:42:52,929 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-06 01:42:52,930 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-06 01:42:52,931 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-12-06 01:42:52,931 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-12-06 01:42:52,931 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-12-06 01:42:52,931 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-06 01:42:52,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:42:52,931 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-06 01:42:52,931 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-06 01:42:52,931 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-06 01:42:52,931 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-12-06 01:42:52,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-06 01:42:52,931 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_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 61ce2c272542663cace3442e405f7ab093d2a72e636da199b8b44596c79af6c9 [2024-12-06 01:42:53,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-06 01:42:53,154 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-06 01:42:53,156 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-06 01:42:53,157 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-06 01:42:53,157 INFO L274 PluginConnector]: CDTParser initialized [2024-12-06 01:42:53,158 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/../../sv-benchmarks/c/float-benchs/Muller_Kahan.c [2024-12-06 01:42:55,798 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/data/f6868263d/360e751ed0824d60be0ef77676d00462/FLAG9929687af [2024-12-06 01:42:55,981 INFO L384 CDTParser]: Found 1 translation units. [2024-12-06 01:42:55,981 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/sv-benchmarks/c/float-benchs/Muller_Kahan.c [2024-12-06 01:42:55,988 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/data/f6868263d/360e751ed0824d60be0ef77676d00462/FLAG9929687af [2024-12-06 01:42:56,002 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/data/f6868263d/360e751ed0824d60be0ef77676d00462 [2024-12-06 01:42:56,004 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-06 01:42:56,005 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-06 01:42:56,006 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-06 01:42:56,006 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-06 01:42:56,011 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-06 01:42:56,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,012 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bdf2bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56, skipping insertion in model container [2024-12-06 01:42:56,012 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,024 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-06 01:42:56,163 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:42:56,173 INFO L200 MainTranslator]: Completed pre-run [2024-12-06 01:42:56,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-06 01:42:56,199 INFO L204 MainTranslator]: Completed translation [2024-12-06 01:42:56,200 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56 WrapperNode [2024-12-06 01:42:56,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-06 01:42:56,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-06 01:42:56,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-06 01:42:56,201 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-06 01:42:56,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,213 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,228 INFO L138 Inliner]: procedures = 12, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 37 [2024-12-06 01:42:56,228 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-06 01:42:56,229 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-06 01:42:56,229 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-06 01:42:56,229 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-06 01:42:56,235 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,236 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,237 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,240 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,241 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,243 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,244 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,245 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,246 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-06 01:42:56,247 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-06 01:42:56,247 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-06 01:42:56,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-06 01:42:56,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-12-06 01:42:56,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/z3 [2024-12-06 01:42:56,280 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-12-06 01:42:56,283 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-12-06 01:42:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-06 01:42:56,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-06 01:42:56,311 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-06 01:42:56,311 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-12-06 01:42:56,367 INFO L234 CfgBuilder]: Building ICFG [2024-12-06 01:42:56,369 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-06 01:42:56,445 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-06 01:42:56,445 INFO L283 CfgBuilder]: Performing block encoding [2024-12-06 01:42:56,472 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-06 01:42:56,472 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-06 01:42:56,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:42:56 BoogieIcfgContainer [2024-12-06 01:42:56,472 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-06 01:42:56,473 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-12-06 01:42:56,473 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-12-06 01:42:56,482 INFO L274 PluginConnector]: CodeCheck initialized [2024-12-06 01:42:56,482 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:42:56" (1/1) ... [2024-12-06 01:42:56,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-06 01:42:56,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:42:56,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2024-12-06 01:42:56,528 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2024-12-06 01:42:56,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-12-06 01:42:56,530 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:42:56,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:42:56,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:42:56,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:42:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:42:56,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-12-06 01:42:56,722 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-12-06 01:42:56,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-12-06 01:42:56,722 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:42:56,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:42:56,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:42:56,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:42:56,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:42:56,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 10 states and 11 transitions. [2024-12-06 01:42:56,779 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2024-12-06 01:42:56,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-12-06 01:42:56,779 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:42:56,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:42:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:42:56,859 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:42:56,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:42:56,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-12-06 01:42:56,970 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-12-06 01:42:56,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-12-06 01:42:56,972 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:42:56,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:42:56,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:42:57,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-12-06 01:42:57,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:42:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2024-12-06 01:42:57,107 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2024-12-06 01:42:57,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-12-06 01:42:57,107 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-12-06 01:42:57,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-06 01:42:57,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-06 01:42:57,198 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-06 01:42:57,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-12-06 01:42:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-12-06 01:42:57,256 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-12-06 01:42:57,257 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-06 01:42:57,257 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2024-12-06 01:42:57,263 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-12-06 01:42:57,316 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2024-12-06 01:42:57,316 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-12-06 01:42:57,316 INFO L77 FloydHoareUtils]: At program point L21-3(line 21) the Hoare annotation is: (or (= |ULTIMATE.start_main_#t~post4#1| 0) (and (<= 1 |ULTIMATE.start_main_#t~post4#1|) (<= |ULTIMATE.start_main_#t~post4#1| 99))) [2024-12-06 01:42:57,317 INFO L77 FloydHoareUtils]: At program point L21-4(line 21) the Hoare annotation is: (or (= |ULTIMATE.start_main_#t~post4#1| 0) (and (<= 1 |ULTIMATE.start_main_#t~post4#1|) (<= |ULTIMATE.start_main_#t~post4#1| 99))) [2024-12-06 01:42:57,317 INFO L77 FloydHoareUtils]: At program point L21-5(lines 21 25) the Hoare annotation is: (not (and (not (= |ULTIMATE.start_main_~i~0#1| 0)) (< |ULTIMATE.start_main_~i~0#1| 1))) [2024-12-06 01:42:57,317 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-12-06 01:42:57,317 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2024-12-06 01:42:57,325 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 06.12 01:42:57 ImpRootNode [2024-12-06 01:42:57,325 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-12-06 01:42:57,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-06 01:42:57,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-06 01:42:57,326 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-06 01:42:57,326 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.12 01:42:56" (3/4) ... [2024-12-06 01:42:57,328 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-06 01:42:57,335 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-06 01:42:57,335 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-12-06 01:42:57,335 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-06 01:42:57,335 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-06 01:42:57,405 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/witness.graphml [2024-12-06 01:42:57,406 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/witness.yml [2024-12-06 01:42:57,406 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-06 01:42:57,407 INFO L158 Benchmark]: Toolchain (without parser) took 1401.34ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 75.4MB in the end (delta: 17.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2024-12-06 01:42:57,407 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:42:57,407 INFO L158 Benchmark]: CACSL2BoogieTranslator took 193.95ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.4MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:42:57,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.30ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:42:57,408 INFO L158 Benchmark]: Boogie Preprocessor took 17.90ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.7MB in the end (delta: 605.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:42:57,408 INFO L158 Benchmark]: RCFGBuilder took 225.26ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 70.2MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-06 01:42:57,408 INFO L158 Benchmark]: CodeCheck took 852.11ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 79.9MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-06 01:42:57,409 INFO L158 Benchmark]: Witness Printer took 80.11ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 75.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-06 01:42:57,410 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: 0.8s, 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, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s 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, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s 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, ConComCheckerStatistics: No data available - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: 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: 21]: 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 0.30ms. Allocated memory is still 117.4MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 193.95ms. Allocated memory is still 117.4MB. Free memory was 93.0MB in the beginning and 82.4MB in the end (delta: 10.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.30ms. Allocated memory is still 117.4MB. Free memory was 82.4MB in the beginning and 81.3MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 17.90ms. Allocated memory is still 117.4MB. Free memory was 81.3MB in the beginning and 80.7MB in the end (delta: 605.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 225.26ms. Allocated memory is still 117.4MB. Free memory was 80.5MB in the beginning and 70.2MB in the end (delta: 10.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 852.11ms. Allocated memory is still 117.4MB. Free memory was 70.2MB in the beginning and 79.9MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 80.11ms. Allocated memory is still 117.4MB. Free memory was 79.9MB in the beginning and 75.4MB in the end (delta: 4.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-12-06 01:42:57,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_25585750-0db3-4cf3-9b8f-11a327c4e2e7/bin/ukojak-verify-CZk0znPC7b/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE