./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2 --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 64bit --witnessprinter.graph.data.programhash 96e06713cc7b7bcca20fa167ac54f1ece6c15e64971186f07487c25eaa3e3847 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 18:32:20,232 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 18:32:20,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-21 18:32:20,345 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 18:32:20,345 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-21 18:32:20,391 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 18:32:20,392 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 18:32:20,393 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-21 18:32:20,394 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 18:32:20,399 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 18:32:20,399 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 18:32:20,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 18:32:20,400 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 18:32:20,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 18:32:20,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 18:32:20,403 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 18:32:20,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 18:32:20,403 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-21 18:32:20,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 18:32:20,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 18:32:20,405 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 18:32:20,406 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-21 18:32:20,406 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-21 18:32:20,406 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-21 18:32:20,407 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 18:32:20,407 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:20,408 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 18:32:20,408 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 18:32:20,409 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 18:32:20,409 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-21 18:32:20,410 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 18:32:20,411 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 18:32:20,411 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96e06713cc7b7bcca20fa167ac54f1ece6c15e64971186f07487c25eaa3e3847 [2023-11-21 18:32:20,704 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 18:32:20,737 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 18:32:20,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 18:32:20,741 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 18:32:20,741 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 18:32:20,743 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/../../sv-benchmarks/c/termination-restricted-15/WhileSingle.c [2023-11-21 18:32:23,815 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 18:32:24,081 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 18:32:24,082 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/sv-benchmarks/c/termination-restricted-15/WhileSingle.c [2023-11-21 18:32:24,109 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/data/881ff69c1/df6d20ebb1754055bfaa289043e16bf8/FLAG3b5e1e955 [2023-11-21 18:32:24,125 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/data/881ff69c1/df6d20ebb1754055bfaa289043e16bf8 [2023-11-21 18:32:24,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 18:32:24,129 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 18:32:24,131 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:24,131 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 18:32:24,137 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 18:32:24,138 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,139 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae1d237 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24, skipping insertion in model container [2023-11-21 18:32:24,139 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,159 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 18:32:24,302 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:24,307 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 18:32:24,317 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 18:32:24,328 INFO L206 MainTranslator]: Completed translation [2023-11-21 18:32:24,328 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24 WrapperNode [2023-11-21 18:32:24,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 18:32:24,329 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:24,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 18:32:24,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 18:32:24,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,342 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,360 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 17 [2023-11-21 18:32:24,360 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 18:32:24,361 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 18:32:24,361 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 18:32:24,361 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 18:32:24,371 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,374 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,378 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,379 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,380 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,381 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 18:32:24,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 18:32:24,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 18:32:24,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 18:32:24,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-21 18:32:24,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/z3 [2023-11-21 18:32:24,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-21 18:32:24,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-21 18:32:24,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 18:32:24,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 18:32:24,547 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 18:32:24,549 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 18:32:24,653 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 18:32:24,679 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 18:32:24,679 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 18:32:24,681 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:24 BoogieIcfgContainer [2023-11-21 18:32:24,682 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 18:32:24,683 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-21 18:32:24,683 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-21 18:32:24,694 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-21 18:32:24,694 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:24" (1/1) ... [2023-11-21 18:32:24,704 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 18:32:24,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:24,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 8 states and 9 transitions. [2023-11-21 18:32:24,755 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2023-11-21 18:32:24,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-21 18:32:24,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:24,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:24,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:24,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:24,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2023-11-21 18:32:24,972 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-21 18:32:24,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-21 18:32:24,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:24,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:24,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:25,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:25,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 10 states and 12 transitions. [2023-11-21 18:32:25,097 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2023-11-21 18:32:25,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-21 18:32:25,098 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-21 18:32:25,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 18:32:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 18:32:25,193 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 18:32:25,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-21 18:32:25,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 6 states and 7 transitions. [2023-11-21 18:32:25,283 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2023-11-21 18:32:25,283 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-21 18:32:25,283 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 4 iterations. [2023-11-21 18:32:25,293 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-21 18:32:25,314 INFO L560 CodeCheckObserver]: Invariant with dag size 5 [2023-11-21 18:32:25,320 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 21.11 06:32:25 ImpRootNode [2023-11-21 18:32:25,321 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-21 18:32:25,321 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 18:32:25,322 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 18:32:25,322 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 18:32:25,323 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 06:32:24" (3/4) ... [2023-11-21 18:32:25,326 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-21 18:32:25,333 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-21 18:32:25,333 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-21 18:32:25,333 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-21 18:32:25,417 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/witness.graphml [2023-11-21 18:32:25,417 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/witness.yml [2023-11-21 18:32:25,418 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 18:32:25,419 INFO L158 Benchmark]: Toolchain (without parser) took 1289.20ms. Allocated memory is still 159.4MB. Free memory was 132.3MB in the beginning and 100.7MB in the end (delta: 31.6MB). Peak memory consumption was 28.2MB. Max. memory is 16.1GB. [2023-11-21 18:32:25,419 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:25,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 198.05ms. Allocated memory is still 159.4MB. Free memory was 131.5MB in the beginning and 122.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 18:32:25,422 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.87ms. Allocated memory is still 159.4MB. Free memory was 122.6MB in the beginning and 121.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:25,429 INFO L158 Benchmark]: Boogie Preprocessor took 20.80ms. Allocated memory is still 159.4MB. Free memory was 121.1MB in the beginning and 120.5MB in the end (delta: 559.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 18:32:25,434 INFO L158 Benchmark]: RCFGBuilder took 299.20ms. Allocated memory is still 159.4MB. Free memory was 120.5MB in the beginning and 128.0MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 18:32:25,435 INFO L158 Benchmark]: CodeCheck took 638.13ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 104.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-21 18:32:25,436 INFO L158 Benchmark]: Witness Printer took 96.27ms. Allocated memory is still 159.4MB. Free memory was 104.1MB in the beginning and 100.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 18:32:25,439 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, 8 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 29 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 27 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 86 IncrementalHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 0 mSDtfsCounter, 86 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 118 SyntacticMatches, 6 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 60 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 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: 11]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 11]: 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: 9]: Loop Invariant Derived loop invariant: (0 <= (i + 2147483648)) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 130.0MB. Free memory is still 102.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 198.05ms. Allocated memory is still 159.4MB. Free memory was 131.5MB in the beginning and 122.6MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.87ms. Allocated memory is still 159.4MB. Free memory was 122.6MB in the beginning and 121.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.80ms. Allocated memory is still 159.4MB. Free memory was 121.1MB in the beginning and 120.5MB in the end (delta: 559.9kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 299.20ms. Allocated memory is still 159.4MB. Free memory was 120.5MB in the beginning and 128.0MB in the end (delta: -7.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 638.13ms. Allocated memory is still 159.4MB. Free memory was 128.0MB in the beginning and 104.1MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 96.27ms. Allocated memory is still 159.4MB. Free memory was 104.1MB in the beginning and 100.7MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-21 18:32:25,486 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6fe41f40-e8f1-4530-922e-687c295332bd/bin/ukojak-verify-i0I2FZA1j2/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE