./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-restricted-15/Ex07.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30e01a73 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_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/config/KojakReach.xml -i ../../sv-benchmarks/c/termination-restricted-15/Ex07.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC --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 e1ac7230c5e382093d26c98e7b6016147f69412c389a30284fe416f8f9568f8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 20:17:05,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 20:17:05,338 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/config/svcomp-Overflow-64bit-Kojak_Default.epf [2023-11-23 20:17:05,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 20:17:05,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-23 20:17:05,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 20:17:05,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 20:17:05,391 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-23 20:17:05,392 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 20:17:05,400 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 20:17:05,400 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 20:17:05,401 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 20:17:05,401 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 20:17:05,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 20:17:05,402 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 20:17:05,402 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 20:17:05,403 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 20:17:05,403 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 20:17:05,404 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 20:17:05,404 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 20:17:05,405 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 20:17:05,407 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-23 20:17:05,408 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-23 20:17:05,408 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-23 20:17:05,409 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 20:17:05,409 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:05,409 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 20:17:05,410 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 20:17:05,410 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 20:17:05,411 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-23 20:17:05,412 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 20:17:05,412 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 20:17:05,412 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_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1ac7230c5e382093d26c98e7b6016147f69412c389a30284fe416f8f9568f8d [2023-11-23 20:17:05,735 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 20:17:05,765 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 20:17:05,768 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 20:17:05,769 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 20:17:05,770 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 20:17:05,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/../../sv-benchmarks/c/termination-restricted-15/Ex07.c [2023-11-23 20:17:09,040 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 20:17:09,269 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 20:17:09,270 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/sv-benchmarks/c/termination-restricted-15/Ex07.c [2023-11-23 20:17:09,278 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/data/3a335f3d7/954b6c3b72c24310ad002bc9492b7341/FLAGd9c91c9bb [2023-11-23 20:17:09,293 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/data/3a335f3d7/954b6c3b72c24310ad002bc9492b7341 [2023-11-23 20:17:09,296 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 20:17:09,298 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 20:17:09,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:09,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 20:17:09,306 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 20:17:09,307 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,308 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6baaa331 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09, skipping insertion in model container [2023-11-23 20:17:09,309 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,332 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 20:17:09,536 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:09,549 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 20:17:09,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 20:17:09,573 INFO L206 MainTranslator]: Completed translation [2023-11-23 20:17:09,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09 WrapperNode [2023-11-23 20:17:09,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 20:17:09,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:09,575 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 20:17:09,575 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 20:17:09,584 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,589 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,608 INFO L138 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2023-11-23 20:17:09,608 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 20:17:09,609 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 20:17:09,609 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 20:17:09,609 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 20:17:09,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,620 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,620 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,622 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,625 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,626 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,628 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 20:17:09,629 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 20:17:09,629 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 20:17:09,629 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 20:17:09,630 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-23 20:17:09,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/z3 [2023-11-23 20:17:09,668 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-23 20:17:09,684 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-23 20:17:09,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 20:17:09,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 20:17:09,798 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 20:17:09,802 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 20:17:09,892 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 20:17:09,919 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 20:17:09,920 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 20:17:09,922 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:09 BoogieIcfgContainer [2023-11-23 20:17:09,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 20:17:09,923 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-23 20:17:09,923 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-23 20:17:09,936 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-23 20:17:09,937 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:09" (1/1) ... [2023-11-23 20:17:09,947 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 20:17:10,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:10,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2023-11-23 20:17:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2023-11-23 20:17:10,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-23 20:17:10,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:10,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:10,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:10,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:10,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:10,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2023-11-23 20:17:10,219 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2023-11-23 20:17:10,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:17:10,219 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:10,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:10,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:10,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:10,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 15 states and 19 transitions. [2023-11-23 20:17:10,365 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-23 20:17:10,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-23 20:17:10,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:10,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:10,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:10,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-23 20:17:10,632 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-23 20:17:10,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-23 20:17:10,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:10,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:10,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:10,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:10,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 19 states and 25 transitions. [2023-11-23 20:17:10,771 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2023-11-23 20:17:10,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-23 20:17:10,772 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:10,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:10,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:10,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:10,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 19 states and 24 transitions. [2023-11-23 20:17:10,919 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 24 transitions. [2023-11-23 20:17:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:17:10,920 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:10,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:10,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:11,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:11,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 14 states and 18 transitions. [2023-11-23 20:17:11,118 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2023-11-23 20:17:11,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 20:17:11,119 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-23 20:17:11,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 20:17:11,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 20:17:11,201 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 20:17:11,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-23 20:17:11,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 9 states and 12 transitions. [2023-11-23 20:17:11,275 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 12 transitions. [2023-11-23 20:17:11,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 20:17:11,276 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 8 iterations. [2023-11-23 20:17:11,287 INFO L751 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2023-11-23 20:17:11,334 INFO L560 CodeCheckObserver]: Invariant with dag size 8 [2023-11-23 20:17:11,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 23.11 08:17:11 ImpRootNode [2023-11-23 20:17:11,351 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-23 20:17:11,353 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 20:17:11,353 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 20:17:11,354 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 20:17:11,354 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:17:09" (3/4) ... [2023-11-23 20:17:11,359 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 20:17:11,372 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-23 20:17:11,373 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-23 20:17:11,374 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-23 20:17:11,510 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/witness.graphml [2023-11-23 20:17:11,511 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/witness.yml [2023-11-23 20:17:11,511 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 20:17:11,512 INFO L158 Benchmark]: Toolchain (without parser) took 2214.07ms. Allocated memory is still 161.5MB. Free memory was 122.8MB in the beginning and 65.6MB in the end (delta: 57.3MB). Peak memory consumption was 55.2MB. Max. memory is 16.1GB. [2023-11-23 20:17:11,513 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:11,513 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.67ms. Allocated memory is still 161.5MB. Free memory was 122.8MB in the beginning and 127.6MB in the end (delta: -4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-23 20:17:11,514 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.38ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 126.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:11,515 INFO L158 Benchmark]: Boogie Preprocessor took 18.87ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 125.5MB in the end (delta: 865.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 20:17:11,515 INFO L158 Benchmark]: RCFGBuilder took 293.56ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 115.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-23 20:17:11,516 INFO L158 Benchmark]: CodeCheck took 1428.12ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 69.8MB in the end (delta: 45.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2023-11-23 20:17:11,517 INFO L158 Benchmark]: Witness Printer took 158.15ms. Allocated memory is still 161.5MB. Free memory was 69.8MB in the beginning and 65.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-23 20:17:11,520 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, 13 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 170 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 114 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 32 mSDsCounter, 87 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 344 IncrementalHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 87 mSolverCounterUnsat, 47 mSDtfsCounter, 344 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 372 GetRequests, 333 SyntacticMatches, 19 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 132 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 8/8 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 - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: ((i <= 2147483647) && (0 <= (i + 2147483648))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 121.6MB. Free memory is still 90.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 274.67ms. Allocated memory is still 161.5MB. Free memory was 122.8MB in the beginning and 127.6MB in the end (delta: -4.8MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.38ms. Allocated memory is still 161.5MB. Free memory was 127.6MB in the beginning and 126.4MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.87ms. Allocated memory is still 161.5MB. Free memory was 126.4MB in the beginning and 125.5MB in the end (delta: 865.2kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 293.56ms. Allocated memory is still 161.5MB. Free memory was 124.9MB in the beginning and 115.3MB in the end (delta: 9.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * CodeCheck took 1428.12ms. Allocated memory is still 161.5MB. Free memory was 115.3MB in the beginning and 69.8MB in the end (delta: 45.5MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 158.15ms. Allocated memory is still 161.5MB. Free memory was 69.8MB in the beginning and 65.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-23 20:17:11,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_611ee1a2-edbf-4b22-8f3b-7daaf8d9a4ca/bin/ukojak-verify-1t5iHCbJaC/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