./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a0165632 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_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk --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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 19:33:10,416 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 19:33:10,495 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Overflow-32bit-Kojak_Default.epf [2024-11-08 19:33:10,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 19:33:10,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 19:33:10,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 19:33:10,531 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 19:33:10,531 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 19:33:10,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 19:33:10,535 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 19:33:10,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 19:33:10,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 19:33:10,536 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 19:33:10,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 19:33:10,537 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 19:33:10,537 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 19:33:10,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 19:33:10,541 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 19:33:10,541 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 19:33:10,542 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 19:33:10,545 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-08 19:33:10,546 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-08 19:33:10,546 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 19:33:10,546 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 19:33:10,546 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 19:33:10,547 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 19:33:10,547 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 19:33:10,547 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 19:33:10,548 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 19:33:10,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:33:10,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 19:33:10,549 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 19:33:10,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 19:33:10,550 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 19:33:10,550 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 19:33:10,551 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_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2024-11-08 19:33:10,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 19:33:10,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 19:33:10,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 19:33:10,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 19:33:10,871 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 19:33:10,873 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c Unable to find full path for "g++" [2024-11-08 19:33:12,885 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 19:33:13,112 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 19:33:13,113 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2024-11-08 19:33:13,119 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/data/24c6e70a9/788ec790cc8c4ad89c13e740c10beaf9/FLAG452edf581 [2024-11-08 19:33:13,133 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/data/24c6e70a9/788ec790cc8c4ad89c13e740c10beaf9 [2024-11-08 19:33:13,136 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 19:33:13,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 19:33:13,139 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 19:33:13,139 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 19:33:13,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 19:33:13,148 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,149 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a67b03e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13, skipping insertion in model container [2024-11-08 19:33:13,149 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,176 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 19:33:13,397 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:33:13,409 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 19:33:13,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 19:33:13,460 INFO L204 MainTranslator]: Completed translation [2024-11-08 19:33:13,461 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13 WrapperNode [2024-11-08 19:33:13,461 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 19:33:13,462 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 19:33:13,462 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 19:33:13,463 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 19:33:13,471 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,479 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,499 INFO L138 Inliner]: procedures = 18, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 113 [2024-11-08 19:33:13,500 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 19:33:13,500 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 19:33:13,501 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 19:33:13,501 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 19:33:13,511 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,511 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,514 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,521 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,523 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,525 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,526 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,528 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 19:33:13,529 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 19:33:13,529 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 19:33:13,529 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 19:33:13,530 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 19:33:13,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 19:33:13,563 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 19:33:13,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 19:33:13,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 19:33:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 19:33:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 19:33:13,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-08 19:33:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 19:33:13,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 19:33:13,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2024-11-08 19:33:13,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 19:33:13,680 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 19:33:13,681 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 19:33:13,839 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 19:33:13,840 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 19:33:13,879 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 19:33:13,880 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-08 19:33:13,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:33:13 BoogieIcfgContainer [2024-11-08 19:33:13,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 19:33:13,882 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 19:33:13,882 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 19:33:13,893 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 19:33:13,893 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:33:13" (1/1) ... [2024-11-08 19:33:13,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 19:33:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:13,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 17 states and 23 transitions. [2024-11-08 19:33:13,965 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 23 transitions. [2024-11-08 19:33:13,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-11-08 19:33:13,967 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:13,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:14,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:14,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:14,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:14,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 20 states and 28 transitions. [2024-11-08 19:33:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2024-11-08 19:33:14,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 19:33:14,332 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:14,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:14,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:14,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:14,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:14,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 21 states and 29 transitions. [2024-11-08 19:33:14,487 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2024-11-08 19:33:14,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 19:33:14,488 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:14,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:14,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:14,625 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:14,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:14,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 24 states and 35 transitions. [2024-11-08 19:33:14,735 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 35 transitions. [2024-11-08 19:33:14,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-08 19:33:14,738 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:14,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:14,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:14,825 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:14,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:14,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2024-11-08 19:33:14,988 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2024-11-08 19:33:14,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-08 19:33:14,988 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:14,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:15,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 19:33:15,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:15,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2024-11-08 19:33:15,218 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2024-11-08 19:33:15,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-08 19:33:15,219 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:15,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:15,293 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:15,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 29 states and 40 transitions. [2024-11-08 19:33:15,385 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 40 transitions. [2024-11-08 19:33:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-08 19:33:15,387 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:15,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:15,507 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:15,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 33 states and 45 transitions. [2024-11-08 19:33:15,610 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2024-11-08 19:33:15,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-08 19:33:15,612 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:15,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:15,719 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:15,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:15,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 37 states and 50 transitions. [2024-11-08 19:33:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 50 transitions. [2024-11-08 19:33:15,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-08 19:33:15,836 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 19:33:15,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 19:33:15,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 19:33:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 19:33:16,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 19:33:16,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 33 states and 44 transitions. [2024-11-08 19:33:16,136 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 44 transitions. [2024-11-08 19:33:16,137 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 19:33:16,137 WARN L417 CodeCheckObserver]: This Program is SAFE, Check terminated with 10 iterations. [2024-11-08 19:33:16,149 INFO L729 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2024-11-08 19:33:16,491 INFO L77 FloydHoareUtils]: At program point L27(lines 27 87) the Hoare annotation is: true [2024-11-08 19:33:16,492 INFO L77 FloydHoareUtils]: At program point main_returnLabel#1(lines 13 98) the Hoare annotation is: true [2024-11-08 19:33:16,492 INFO L77 FloydHoareUtils]: At program point L40(lines 40 66) the Hoare annotation is: true [2024-11-08 19:33:16,492 INFO L77 FloydHoareUtils]: At program point $Ultimate##8(lines 31 82) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 5) (< 4 |ULTIMATE.start_main_~main__i~0#1|)) (and (< |ULTIMATE.start_main_~main__i~0#1| 1) (<= 0 (+ |ULTIMATE.start_main_~main__i~0#1| 2147483648)))) [2024-11-08 19:33:16,493 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2024-11-08 19:33:16,493 INFO L77 FloydHoareUtils]: At program point L24(lines 24 92) the Hoare annotation is: true [2024-11-08 19:33:16,493 INFO L77 FloydHoareUtils]: At program point L33(lines 33 77) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-08 19:33:16,494 INFO L75 FloydHoareUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 75) no Hoare annotation was computed. [2024-11-08 19:33:16,494 INFO L77 FloydHoareUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2024-11-08 19:33:16,494 INFO L77 FloydHoareUtils]: At program point L75(line 75) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 1 |ULTIMATE.start_main_~main__i~0#1|)) (= |ULTIMATE.start_main_~main__i~0#1| 0) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-08 19:33:16,495 INFO L77 FloydHoareUtils]: At program point L75-1(line 75) the Hoare annotation is: (or (and (< 3 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 4)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 3) (< 2 |ULTIMATE.start_main_~main__i~0#1|)) (and (<= |ULTIMATE.start_main_~main__i~0#1| 1) (<= 0 (+ 2147483649 |ULTIMATE.start_main_~main__i~0#1|))) (and (< 1 |ULTIMATE.start_main_~main__i~0#1|) (<= |ULTIMATE.start_main_~main__i~0#1| 2))) [2024-11-08 19:33:16,495 INFO L77 FloydHoareUtils]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2024-11-08 19:33:16,495 INFO L77 FloydHoareUtils]: At program point L38(lines 38 71) the Hoare annotation is: true [2024-11-08 19:33:16,495 INFO L77 FloydHoareUtils]: At program point L63(lines 38 71) the Hoare annotation is: true [2024-11-08 19:33:16,495 INFO L77 FloydHoareUtils]: At program point L22(lines 22 97) the Hoare annotation is: true [2024-11-08 19:33:16,496 INFO L77 FloydHoareUtils]: At program point L43(lines 40 66) the Hoare annotation is: true [2024-11-08 19:33:16,496 INFO L77 FloydHoareUtils]: At program point L35(lines 31 82) the Hoare annotation is: true [2024-11-08 19:33:16,512 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 07:33:16 ImpRootNode [2024-11-08 19:33:16,513 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 19:33:16,513 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 19:33:16,513 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 19:33:16,514 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 19:33:16,514 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 07:33:13" (3/4) ... [2024-11-08 19:33:16,518 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 19:33:16,531 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-08 19:33:16,531 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 19:33:16,532 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 19:33:16,532 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 19:33:16,636 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/witness.graphml [2024-11-08 19:33:16,637 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/witness.yml [2024-11-08 19:33:16,637 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 19:33:16,638 INFO L158 Benchmark]: Toolchain (without parser) took 3500.79ms. Allocated memory is still 182.5MB. Free memory was 143.3MB in the beginning and 115.5MB in the end (delta: 27.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-08 19:33:16,639 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 80.3MB in the beginning and 80.1MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:33:16,639 INFO L158 Benchmark]: CACSL2BoogieTranslator took 322.67ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 130.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 19:33:16,639 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.49ms. Allocated memory is still 182.5MB. Free memory was 130.3MB in the beginning and 128.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:33:16,640 INFO L158 Benchmark]: Boogie Preprocessor took 27.74ms. Allocated memory is still 182.5MB. Free memory was 128.6MB in the beginning and 127.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 19:33:16,640 INFO L158 Benchmark]: RCFGBuilder took 351.91ms. Allocated memory is still 182.5MB. Free memory was 127.1MB in the beginning and 112.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-08 19:33:16,641 INFO L158 Benchmark]: CodeCheck took 2631.15ms. Allocated memory is still 182.5MB. Free memory was 112.9MB in the beginning and 120.7MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 19:33:16,641 INFO L158 Benchmark]: Witness Printer took 124.08ms. Allocated memory is still 182.5MB. Free memory was 120.7MB in the beginning and 115.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 19:33:16,644 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 313 SdHoareTripleChecker+Valid, 1.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 201 mSDsluCounter, 276 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 130 mSDsCounter, 168 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 556 IncrementalHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 168 mSolverCounterUnsat, 146 mSDtfsCounter, 556 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1049 GetRequests, 973 SyntacticMatches, 40 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 141 NumberOfCodeBlocks, 141 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 132 ConstructedInterpolants, 0 QuantifiedInterpolants, 336 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 10/153 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: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: 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: 31]: Location Invariant Derived location invariant: (((((((3 < main__i) && (main__i <= 4)) || ((main__i <= 1) && (1 <= main__i))) || ((main__i <= 3) && (2 < main__i))) || ((1 < main__i) && (main__i <= 2))) || ((main__i <= 5) && (4 < main__i))) || ((main__i < 1) && (0 <= (main__i + 2147483648)))) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 134.2MB. Free memory was 80.3MB in the beginning and 80.1MB in the end (delta: 178.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 322.67ms. Allocated memory is still 182.5MB. Free memory was 142.8MB in the beginning and 130.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.49ms. Allocated memory is still 182.5MB. Free memory was 130.3MB in the beginning and 128.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.74ms. Allocated memory is still 182.5MB. Free memory was 128.6MB in the beginning and 127.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 351.91ms. Allocated memory is still 182.5MB. Free memory was 127.1MB in the beginning and 112.9MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * CodeCheck took 2631.15ms. Allocated memory is still 182.5MB. Free memory was 112.9MB in the beginning and 120.7MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 124.08ms. Allocated memory is still 182.5MB. Free memory was 120.7MB in the beginning and 115.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2024-11-08 19:33:16,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea299b71-de32-4a2f-bb80-a37aade95acf/bin/ukojak-verify-ImItNfHLgk/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