./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/float-benchs/bary_diverge.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9bd2c7ff 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_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/bary_diverge.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL --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 b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:56:56,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:56:56,407 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Overflow-32bit-Kojak_Default.epf [2023-11-19 02:56:56,412 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:56:56,413 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:56:56,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:56:56,455 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:56:56,455 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:56:56,456 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:56:56,461 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:56:56,462 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:56:56,463 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:56:56,463 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:56:56,465 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:56:56,465 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:56:56,465 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:56:56,466 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:56:56,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:56:56,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:56:56,467 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-19 02:56:56,467 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-19 02:56:56,468 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:56:56,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:56:56,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:56:56,469 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:56:56,470 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:56:56,470 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:56:56,471 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:56:56,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:56:56,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:56:56,473 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:56:56,473 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:56:56,473 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:56:56,474 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:56:56,474 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:56:56,474 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_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9d207296596aa3375527680ff88bb2bc1830663ee47f0fb08df7239383517f9 [2023-11-19 02:56:56,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:56:56,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:56:56,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:56:56,854 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:56:56,855 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:56:56,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/bary_diverge.c [2023-11-19 02:56:59,868 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:57:00,071 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:57:00,071 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/sv-benchmarks/c/float-benchs/bary_diverge.c [2023-11-19 02:57:00,090 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/data/7e7aaca37/b0e7aeecc9cb45a492a3bb5449d42a1a/FLAG76b1133c9 [2023-11-19 02:57:00,104 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/data/7e7aaca37/b0e7aeecc9cb45a492a3bb5449d42a1a [2023-11-19 02:57:00,107 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:57:00,108 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:57:00,109 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:00,109 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:57:00,115 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:57:00,116 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,117 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4835a10a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00, skipping insertion in model container [2023-11-19 02:57:00,117 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,140 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:57:00,309 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:00,319 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:57:00,337 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:57:00,352 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:57:00,353 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00 WrapperNode [2023-11-19 02:57:00,353 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:57:00,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:00,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:57:00,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:57:00,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,369 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,397 INFO L138 Inliner]: procedures = 17, calls = 17, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 72 [2023-11-19 02:57:00,398 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:57:00,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:57:00,399 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:57:00,399 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:57:00,409 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,415 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,415 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,427 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,428 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,434 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:57:00,440 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:57:00,440 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:57:00,440 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:57:00,442 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:57:00,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:57:00,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:57:00,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:57:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:57:00,519 INFO L130 BoogieDeclarations]: Found specification of procedure RANDOM_INPUT [2023-11-19 02:57:00,520 INFO L138 BoogieDeclarations]: Found implementation of procedure RANDOM_INPUT [2023-11-19 02:57:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:57:00,520 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:57:00,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:57:00,625 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:57:00,628 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:57:00,842 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:57:00,963 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:57:00,963 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-19 02:57:00,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:00 BoogieIcfgContainer [2023-11-19 02:57:00,968 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:57:00,969 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:57:00,969 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:57:00,978 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:57:00,979 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:00" (1/1) ... [2023-11-19 02:57:00,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:57:01,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:01,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 19 states and 23 transitions. [2023-11-19 02:57:01,043 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-19 02:57:01,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:57:01,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:01,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 02:57:01,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:01,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 27 states and 35 transitions. [2023-11-19 02:57:01,542 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 35 transitions. [2023-11-19 02:57:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:57:01,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:01,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:01,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:01,675 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2023-11-19 02:57:01,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:01,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 28 states and 36 transitions. [2023-11-19 02:57:01,702 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2023-11-19 02:57:01,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 02:57:01,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:01,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:01,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:01,922 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-19 02:57:02,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:02,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 36 states and 48 transitions. [2023-11-19 02:57:02,117 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 48 transitions. [2023-11-19 02:57:02,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-11-19 02:57:02,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:02,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:02,332 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2023-11-19 02:57:02,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:02,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 35 states and 47 transitions. [2023-11-19 02:57:02,547 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2023-11-19 02:57:02,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-19 02:57:02,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:57:02,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:57:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:57:02,853 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-19 02:57:02,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:57:02,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 26 states and 33 transitions. [2023-11-19 02:57:02,933 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2023-11-19 02:57:02,934 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 02:57:02,934 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2023-11-19 02:57:02,942 INFO L751 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2023-11-19 02:57:02,981 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 02:57:02,986 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:57:02 ImpRootNode [2023-11-19 02:57:02,986 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:57:02,987 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:57:02,987 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:57:02,987 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:57:02,988 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:57:00" (3/4) ... [2023-11-19 02:57:02,990 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 02:57:02,993 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure RANDOM_INPUT [2023-11-19 02:57:02,997 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2023-11-19 02:57:02,998 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2023-11-19 02:57:02,998 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-19 02:57:02,998 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 02:57:03,088 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 02:57:03,088 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 02:57:03,088 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:57:03,089 INFO L158 Benchmark]: Toolchain (without parser) took 2981.25ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 125.7MB in the beginning and 96.7MB in the end (delta: 29.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2023-11-19 02:57:03,090 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:57:03,090 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.35ms. Allocated memory is still 155.2MB. Free memory was 125.7MB in the beginning and 115.4MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:57:03,090 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.65ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:57:03,091 INFO L158 Benchmark]: Boogie Preprocessor took 39.76ms. Allocated memory is still 155.2MB. Free memory was 113.9MB in the beginning and 112.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:57:03,091 INFO L158 Benchmark]: RCFGBuilder took 527.83ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 116.8MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 02:57:03,092 INFO L158 Benchmark]: CodeCheck took 2017.52ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 116.8MB in the beginning and 102.0MB in the end (delta: 14.8MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2023-11-19 02:57:03,092 INFO L158 Benchmark]: Witness Printer took 101.95ms. Allocated memory is still 186.6MB. Free memory was 102.0MB in the beginning and 96.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-19 02:57:03,094 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 2 procedures, 19 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 235 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 72 mSDsluCounter, 230 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 93 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 279 IncrementalHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 93 mSolverCounterUnsat, 170 mSDtfsCounter, 279 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1017 GetRequests, 973 SyntacticMatches, 18 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 177 NumberOfCodeBlocks, 177 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 172 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 279/304 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: 61]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 61]: 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: 61]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 125.8MB. Free memory is still 98.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 244.35ms. Allocated memory is still 155.2MB. Free memory was 125.7MB in the beginning and 115.4MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.65ms. Allocated memory is still 155.2MB. Free memory was 115.4MB in the beginning and 113.9MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.76ms. Allocated memory is still 155.2MB. Free memory was 113.9MB in the beginning and 112.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 527.83ms. Allocated memory is still 155.2MB. Free memory was 112.7MB in the beginning and 116.8MB in the end (delta: -4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 2017.52ms. Allocated memory was 155.2MB in the beginning and 186.6MB in the end (delta: 31.5MB). Free memory was 116.8MB in the beginning and 102.0MB in the end (delta: 14.8MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Witness Printer took 101.95ms. Allocated memory is still 186.6MB. Free memory was 102.0MB in the beginning and 96.7MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 02:57:03,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5efcb83-d810-47ee-8a6a-5f1ddb989cef/bin/ukojak-verify-G8NBE6pJGL/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