./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/feedback_diverge.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_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/feedback_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3 --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 a6e296367f1fe3cf145b6868ec70c2d770b2281a31a9d7dcae84843c6ed48125 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-24 18:08:19,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 18:08:19,444 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-24 18:08:19,453 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 18:08:19,459 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-24 18:08:19,487 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 18:08:19,488 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 18:08:19,489 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-24 18:08:19,489 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 18:08:19,489 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 18:08:19,490 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 18:08:19,490 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 18:08:19,490 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 18:08:19,490 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 18:08:19,490 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 18:08:19,490 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 18:08:19,491 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 18:08:19,491 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 18:08:19,491 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 18:08:19,491 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 18:08:19,491 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 18:08:19,492 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 18:08:19,492 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 18:08:19,492 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 18:08:19,492 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 18:08:19,492 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-24 18:08:19,493 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-24 18:08:19,493 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-24 18:08:19,493 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 18:08:19,493 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:08:19,493 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 18:08:19,494 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 18:08:19,494 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 18:08:19,494 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-24 18:08:19,494 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 18:08:19,494 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_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3 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 -> a6e296367f1fe3cf145b6868ec70c2d770b2281a31a9d7dcae84843c6ed48125 [2024-11-24 18:08:19,872 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 18:08:19,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 18:08:19,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 18:08:19,887 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 18:08:19,888 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 18:08:19,890 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/../../sv-benchmarks/c/float-benchs/feedback_diverge.c [2024-11-24 18:08:23,712 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/data/10035c6be/9400074e9a354ee1bf7d2fde1bc66744/FLAGf7bdb79cb [2024-11-24 18:08:24,072 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 18:08:24,073 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/sv-benchmarks/c/float-benchs/feedback_diverge.c [2024-11-24 18:08:24,084 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/data/10035c6be/9400074e9a354ee1bf7d2fde1bc66744/FLAGf7bdb79cb [2024-11-24 18:08:24,298 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/data/10035c6be/9400074e9a354ee1bf7d2fde1bc66744 [2024-11-24 18:08:24,302 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 18:08:24,304 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 18:08:24,307 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 18:08:24,307 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 18:08:24,317 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 18:08:24,319 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,322 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@386285b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24, skipping insertion in model container [2024-11-24 18:08:24,322 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,342 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 18:08:24,570 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:08:24,581 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 18:08:24,600 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 18:08:24,618 INFO L204 MainTranslator]: Completed translation [2024-11-24 18:08:24,619 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24 WrapperNode [2024-11-24 18:08:24,619 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 18:08:24,620 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 18:08:24,620 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 18:08:24,620 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 18:08:24,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,636 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,657 INFO L138 Inliner]: procedures = 16, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 50 [2024-11-24 18:08:24,657 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 18:08:24,658 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 18:08:24,658 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 18:08:24,658 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 18:08:24,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,668 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,668 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,673 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,674 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,678 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,679 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,680 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,682 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 18:08:24,683 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 18:08:24,683 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 18:08:24,683 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 18:08:24,685 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 06:08:24" (1/1) ... [2024-11-24 18:08:24,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-24 18:08:24,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/z3 [2024-11-24 18:08:24,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-24 18:08:24,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-24 18:08:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 18:08:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-24 18:08:24,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 18:08:24,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 18:08:24,862 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 18:08:24,864 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 18:08:25,080 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-24 18:08:25,080 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 18:08:25,170 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 18:08:25,170 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 18:08:25,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:08:25 BoogieIcfgContainer [2024-11-24 18:08:25,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 18:08:25,172 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-24 18:08:25,172 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-24 18:08:25,186 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-24 18:08:25,186 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:08:25" (1/1) ... [2024-11-24 18:08:25,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 18:08:25,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:08:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2024-11-24 18:08:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2024-11-24 18:08:25,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2024-11-24 18:08:25,265 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:08:25,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:08:25,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:08:25,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:08:25,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:08:25,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 9 states and 10 transitions. [2024-11-24 18:08:25,657 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2024-11-24 18:08:25,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2024-11-24 18:08:25,658 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:08:25,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:08:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:08:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:08:25,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:08:25,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2024-11-24 18:08:26,000 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2024-11-24 18:08:26,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2024-11-24 18:08:26,000 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:08:26,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:08:26,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:08:26,258 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 18:08:26,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:08:26,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-24 18:08:26,311 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-24 18:08:26,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-24 18:08:26,312 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-24 18:08:26,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 18:08:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 18:08:26,498 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 18:08:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-24 18:08:26,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2024-11-24 18:08:26,618 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2024-11-24 18:08:26,618 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-24 18:08:26,618 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 5 iterations. [2024-11-24 18:08:26,634 INFO L726 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-24 18:08:26,733 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2024-11-24 18:08:26,733 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-24 18:08:26,733 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-24 18:08:26,734 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2024-11-24 18:08:26,734 INFO L77 FloydHoareUtils]: At program point L26-3(line 26) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_#t~post6#1| 3599999) (< 0 |ULTIMATE.start_main_#t~post6#1|)) (and (<= |ULTIMATE.start_main_#t~post6#1| 0) (<= 0 |ULTIMATE.start_main_#t~post6#1|))) [2024-11-24 18:08:26,734 INFO L77 FloydHoareUtils]: At program point L26-4(line 26) the Hoare annotation is: (or (and (<= |ULTIMATE.start_main_#t~post6#1| 3599999) (< 0 |ULTIMATE.start_main_#t~post6#1|)) (and (<= |ULTIMATE.start_main_#t~post6#1| 0) (<= 0 |ULTIMATE.start_main_#t~post6#1|))) [2024-11-24 18:08:26,734 INFO L77 FloydHoareUtils]: At program point L26-5(lines 26 39) the Hoare annotation is: (<= 0 |ULTIMATE.start_main_~i~0#1|) [2024-11-24 18:08:26,748 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 06:08:26 ImpRootNode [2024-11-24 18:08:26,748 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-24 18:08:26,749 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-24 18:08:26,749 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-24 18:08:26,749 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-24 18:08:26,750 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 06:08:25" (3/4) ... [2024-11-24 18:08:26,753 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-24 18:08:26,760 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-24 18:08:26,760 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-24 18:08:26,761 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-24 18:08:26,761 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-24 18:08:26,871 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/witness.graphml [2024-11-24 18:08:26,872 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/witness.yml [2024-11-24 18:08:26,872 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-24 18:08:26,874 INFO L158 Benchmark]: Toolchain (without parser) took 2568.89ms. Allocated memory is still 117.4MB. Free memory was 93.2MB in the beginning and 78.3MB in the end (delta: 14.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-24 18:08:26,877 INFO L158 Benchmark]: CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:08:26,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 312.43ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-24 18:08:26,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.15ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:08:26,878 INFO L158 Benchmark]: Boogie Preprocessor took 24.14ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.2MB in the end (delta: 723.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:08:26,879 INFO L158 Benchmark]: RCFGBuilder took 488.08ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 67.8MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-24 18:08:26,879 INFO L158 Benchmark]: CodeCheck took 1576.38ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 82.9MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:08:26,879 INFO L158 Benchmark]: Witness Printer took 123.22ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 78.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-24 18:08:26,882 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: 1.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 49 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 116 IncrementalHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 49 mSolverCounterUnsat, 0 mSDtfsCounter, 116 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 143 GetRequests, 121 SyntacticMatches, 6 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 5/5 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: 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: 26]: Loop Invariant Derived loop invariant: (0 <= i) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.55ms. Allocated memory is still 117.4MB. Free memory is still 73.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 312.43ms. Allocated memory is still 117.4MB. Free memory was 92.9MB in the beginning and 82.1MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.15ms. Allocated memory is still 117.4MB. Free memory was 82.1MB in the beginning and 81.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.14ms. Allocated memory is still 117.4MB. Free memory was 81.0MB in the beginning and 80.2MB in the end (delta: 723.5kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 488.08ms. Allocated memory is still 117.4MB. Free memory was 80.2MB in the beginning and 67.8MB in the end (delta: 12.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 1576.38ms. Allocated memory is still 117.4MB. Free memory was 67.8MB in the beginning and 82.9MB in the end (delta: -15.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 123.22ms. Allocated memory is still 117.4MB. Free memory was 82.9MB in the beginning and 78.3MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-24 18:08:26,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_39221eea-3b8c-49c1-86b2-6fd17763c27a/bin/ukojak-verify-ENZ3QT5qd3/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