./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/inv_square_int.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/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_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:59:16,095 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:59:16,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:59:16,253 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:59:16,255 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:59:16,301 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:59:16,304 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:59:16,305 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:59:16,306 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:59:16,312 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:59:16,313 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:59:16,314 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:59:16,314 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:59:16,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:59:16,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:59:16,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:59:16,318 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:59:16,319 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:59:16,319 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:59:16,320 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:59:16,320 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:59:16,323 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:59:16,323 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:59:16,324 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:59:16,325 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:59:16,326 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:59:16,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:16,327 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:59:16,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:59:16,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:59:16,330 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:59:16,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:59:16,330 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:59:16,331 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_2cb80046-14d9-4b95-9dfd-02b039861c8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d [2023-11-19 03:59:16,686 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:59:16,724 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:59:16,727 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:59:16,729 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:59:16,730 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:59:16,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-19 03:59:20,046 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:59:20,287 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:59:20,288 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-19 03:59:20,296 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data/c5db4d753/e5928605959548adb5bd0cd893872ed2/FLAGc58598e54 [2023-11-19 03:59:20,313 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data/c5db4d753/e5928605959548adb5bd0cd893872ed2 [2023-11-19 03:59:20,317 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:59:20,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:59:20,321 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:20,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:59:20,334 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:59:20,336 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,337 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44cf4748 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20, skipping insertion in model container [2023-11-19 03:59:20,337 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,367 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:59:20,553 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-19 03:59:20,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:20,588 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:59:20,604 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-19 03:59:20,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:20,623 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:59:20,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20 WrapperNode [2023-11-19 03:59:20,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:20,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:20,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:59:20,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:59:20,636 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,669 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-19 03:59:20,669 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:20,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:59:20,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:59:20,670 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:59:20,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,682 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,682 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,687 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,689 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,690 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,691 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:59:20,694 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:59:20,695 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:59:20,695 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:59:20,696 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:20" (1/1) ... [2023-11-19 03:59:20,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:20,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:59:20,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:59:20,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:59:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:59:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:59:20,776 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:59:20,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:59:20,845 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:59:20,847 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:59:20,965 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:59:21,016 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:59:21,017 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:59:21,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:21 BoogieIcfgContainer [2023-11-19 03:59:21,022 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:59:21,023 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:59:21,024 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:59:21,036 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:59:21,036 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:21" (1/1) ... [2023-11-19 03:59:21,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:59:21,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:21,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:59:21,109 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:59:21,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:59:21,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:21,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:59:21,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:59:21,225 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:59:21,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:59:21,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:59:21,353 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:59:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:59:21,370 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-19 03:59:21,420 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:59:21 ImpRootNode [2023-11-19 03:59:21,420 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:59:21,423 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:59:21,423 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:59:21,424 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:59:21,425 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:21" (3/4) ... [2023-11-19 03:59:21,432 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:59:21,434 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:59:21,435 INFO L158 Benchmark]: Toolchain (without parser) took 1115.82ms. Allocated memory is still 182.5MB. Free memory was 140.5MB in the beginning and 104.9MB in the end (delta: 35.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-19 03:59:21,436 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:21,437 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.75ms. Allocated memory is still 182.5MB. Free memory was 140.5MB in the beginning and 130.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:59:21,438 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.61ms. Allocated memory is still 182.5MB. Free memory was 130.1MB in the beginning and 128.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:21,439 INFO L158 Benchmark]: Boogie Preprocessor took 23.53ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 127.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:59:21,440 INFO L158 Benchmark]: RCFGBuilder took 328.09ms. Allocated memory is still 182.5MB. Free memory was 127.5MB in the beginning and 117.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:59:21,441 INFO L158 Benchmark]: CodeCheck took 397.00ms. Allocated memory is still 182.5MB. Free memory was 117.0MB in the beginning and 105.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 03:59:21,441 INFO L158 Benchmark]: Witness Printer took 11.24ms. Allocated memory is still 182.5MB. Free memory was 105.4MB in the beginning and 104.9MB in the end (delta: 461.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:21,461 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 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 - UnprovableResult [Line: 13]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 23. Possible FailurePath: [L17] int x; [L18] float y, z; [L20] x = __VERIFIER_nondet_int() [L21] CALL assume_abort_if_not(x >= -10 && x <= 10) [L11] COND FALSE !(!cond) [L21] RET assume_abort_if_not(x >= -10 && x <= 10) [L23] y = x*x - 2.f [L24] CALL __VERIFIER_assert(y != 0.f) [L13] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L13] reach_error() VAL [\old(cond)=0, cond=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 130.0MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.75ms. Allocated memory is still 182.5MB. Free memory was 140.5MB in the beginning and 130.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.61ms. Allocated memory is still 182.5MB. Free memory was 130.1MB in the beginning and 128.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.53ms. Allocated memory is still 182.5MB. Free memory was 128.9MB in the beginning and 127.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 328.09ms. Allocated memory is still 182.5MB. Free memory was 127.5MB in the beginning and 117.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 397.00ms. Allocated memory is still 182.5MB. Free memory was 117.0MB in the beginning and 105.4MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 11.24ms. Allocated memory is still 182.5MB. Free memory was 105.4MB in the beginning and 104.9MB in the end (delta: 461.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:59:21,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/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_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:59:24,465 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:59:24,565 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:59:24,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:59:24,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:59:24,607 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:59:24,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:59:24,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:59:24,610 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:59:24,611 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:59:24,611 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:59:24,612 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:59:24,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:59:24,613 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:59:24,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:59:24,615 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:59:24,615 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:59:24,616 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:59:24,617 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:59:24,618 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:59:24,618 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:59:24,619 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:59:24,620 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:59:24,620 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:59:24,621 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:59:24,621 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:59:24,622 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:59:24,623 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:59:24,623 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:24,624 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:59:24,625 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:59:24,625 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:59:24,626 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:59:24,626 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:59:24,627 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:59:24,627 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:59:24,627 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:59:24,628 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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_2cb80046-14d9-4b95-9dfd-02b039861c8e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d [2023-11-19 03:59:25,166 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:59:25,205 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:59:25,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:59:25,212 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:59:25,212 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:59:25,215 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-19 03:59:28,755 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:59:29,052 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:59:29,053 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-19 03:59:29,062 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data/26105580f/fdeb72cbb48a41a589655674423d4dc1/FLAGd8d261f98 [2023-11-19 03:59:29,079 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/data/26105580f/fdeb72cbb48a41a589655674423d4dc1 [2023-11-19 03:59:29,081 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:59:29,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:59:29,085 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:29,085 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:59:29,090 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:59:29,091 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,093 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c0d2cd6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29, skipping insertion in model container [2023-11-19 03:59:29,093 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,115 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:59:29,305 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-19 03:59:29,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:29,329 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:59:29,343 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-19 03:59:29,346 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:59:29,363 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:59:29,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29 WrapperNode [2023-11-19 03:59:29,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:59:29,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:29,366 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:59:29,366 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:59:29,374 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,391 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,408 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-19 03:59:29,408 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:59:29,409 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:59:29,409 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:59:29,409 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:59:29,418 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,422 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,434 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,435 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,438 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:59:29,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:59:29,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:59:29,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:59:29,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:59:29" (1/1) ... [2023-11-19 03:59:29,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:59:29,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:59:29,526 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:59:29,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:59:29,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:59:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:59:29,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:59:29,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:59:29,695 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:59:29,698 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:59:31,062 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:59:31,135 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:59:31,136 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-19 03:59:31,152 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:31 BoogieIcfgContainer [2023-11-19 03:59:31,152 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:59:31,153 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:59:31,154 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:59:31,166 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:59:31,166 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:31" (1/1) ... [2023-11-19 03:59:31,179 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:59:31,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:31,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-19 03:59:31,263 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-19 03:59:31,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-19 03:59:31,266 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:59:31,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:59:31,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:59:31,269 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:59:31,309 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:59:31,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:31,448 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:59:32,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:59:32,406 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:59:32,421 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:59:33,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:59:33,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:59:34,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:59:34,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-19 03:59:34,710 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-19 03:59:34,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-19 03:59:34,711 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-19 03:59:34,721 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-19 03:59:34,739 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-19 03:59:34,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:59:34 ImpRootNode [2023-11-19 03:59:34,742 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:59:34,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:59:34,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:59:34,743 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:59:34,744 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:59:31" (3/4) ... [2023-11-19 03:59:34,746 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-19 03:59:34,761 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-19 03:59:34,761 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-19 03:59:34,762 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-19 03:59:34,762 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-19 03:59:34,865 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/witness.graphml [2023-11-19 03:59:34,866 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/bin/ukojak-verify-G8NBE6pJGL/witness.yml [2023-11-19 03:59:34,866 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:59:34,867 INFO L158 Benchmark]: Toolchain (without parser) took 5783.89ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.6MB in the beginning and 64.6MB in the end (delta: -13.9MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2023-11-19 03:59:34,868 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:34,869 INFO L158 Benchmark]: CACSL2BoogieTranslator took 279.97ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 39.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:59:34,869 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.84ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 38.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:34,870 INFO L158 Benchmark]: Boogie Preprocessor took 29.38ms. Allocated memory is still 75.5MB. Free memory was 38.1MB in the beginning and 36.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:59:34,871 INFO L158 Benchmark]: RCFGBuilder took 1713.43ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.8MB in the beginning and 59.5MB in the end (delta: -22.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2023-11-19 03:59:34,872 INFO L158 Benchmark]: CodeCheck took 3588.99ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 68.7MB in the end (delta: -9.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2023-11-19 03:59:34,872 INFO L158 Benchmark]: Witness Printer took 123.11ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 64.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-19 03:59:34,876 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, 6 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 1 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 4 SizeOfPredicates, 4 NumberOfNonLiveVariables, 19 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 13]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 75.5MB. Free memory was 51.6MB in the beginning and 51.6MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 279.97ms. Allocated memory is still 75.5MB. Free memory was 50.5MB in the beginning and 39.6MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.84ms. Allocated memory is still 75.5MB. Free memory was 39.6MB in the beginning and 38.1MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.38ms. Allocated memory is still 75.5MB. Free memory was 38.1MB in the beginning and 36.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1713.43ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 36.8MB in the beginning and 59.5MB in the end (delta: -22.7MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * CodeCheck took 3588.99ms. Allocated memory is still 92.3MB. Free memory was 59.5MB in the beginning and 68.7MB in the end (delta: -9.1MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. * Witness Printer took 123.11ms. Allocated memory is still 92.3MB. Free memory was 68.7MB in the beginning and 64.6MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-19 03:59:34,930 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cb80046-14d9-4b95-9dfd-02b039861c8e/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