./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 0e0057cc 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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi --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 0.2.4-dev-0e0057c [2023-11-24 23:08:30,048 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:30,123 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 23:08:30,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 23:08:30,129 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 23:08:30,157 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:30,158 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:30,159 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:30,160 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:30,160 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:30,161 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:30,162 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:30,162 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:08:30,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 23:08:30,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:08:30,164 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:30,165 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:30,166 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:30,166 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:30,167 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:08:30,167 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:30,168 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:30,169 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:30,169 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:30,170 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:30,171 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:30,171 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:30,172 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:30,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:30,173 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:08:30,174 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 23:08:30,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 23:08:30,175 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:08:30,176 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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d [2023-11-24 23:08:30,432 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:30,465 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:30,468 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:30,469 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:30,470 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:30,471 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-24 23:08:34,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:08:34,364 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:08:34,365 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-24 23:08:34,374 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data/d1b9f029f/c4e5d8e4e6444b4aa2dacbbf0778f219/FLAG55ea66424 [2023-11-24 23:08:34,392 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data/d1b9f029f/c4e5d8e4e6444b4aa2dacbbf0778f219 [2023-11-24 23:08:34,402 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:08:34,405 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:08:34,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:34,411 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:08:34,417 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:08:34,420 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,423 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c7232ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34, skipping insertion in model container [2023-11-24 23:08:34,423 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,450 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:08:34,690 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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-24 23:08:34,705 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:34,724 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:08:34,739 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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-24 23:08:34,742 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:34,761 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:08:34,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34 WrapperNode [2023-11-24 23:08:34,762 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:34,764 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:34,764 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:08:34,764 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:08:34,774 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,805 INFO L138 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-24 23:08:34,806 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:34,807 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:08:34,807 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:08:34,807 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:08:34,819 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,825 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,826 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,838 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,846 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,850 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:08:34,852 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:08:34,853 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:08:34,853 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:08:34,854 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:34" (1/1) ... [2023-11-24 23:08:34,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:34,877 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:08:34,893 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:08:34,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:08:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:08:34,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 23:08:34,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:08:34,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:08:35,054 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:08:35,059 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:08:35,246 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:08:35,344 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:08:35,347 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:08:35,349 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:35 BoogieIcfgContainer [2023-11-24 23:08:35,350 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:08:35,351 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:08:35,352 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:08:35,365 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:08:35,365 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:35" (1/1) ... [2023-11-24 23:08:35,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:08:35,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:35,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-24 23:08:35,458 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-24 23:08:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:08:35,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:35,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 23:08:35,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:35,602 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:08:35,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:35,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:35,716 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 23:08:35,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 23:08:35,739 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2023-11-24 23:08:35,768 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:08:35 ImpRootNode [2023-11-24 23:08:35,768 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:08:35,770 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:08:35,771 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:08:35,771 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:08:35,772 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:35" (3/4) ... [2023-11-24 23:08:35,778 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 23:08:35,780 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:08:35,782 INFO L158 Benchmark]: Toolchain (without parser) took 1375.73ms. Allocated memory is still 159.4MB. Free memory was 128.7MB in the beginning and 92.8MB in the end (delta: 35.9MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-11-24 23:08:35,782 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:35,784 INFO L158 Benchmark]: CACSL2BoogieTranslator took 351.73ms. Allocated memory is still 159.4MB. Free memory was 128.3MB in the beginning and 118.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:35,786 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.97ms. Allocated memory is still 159.4MB. Free memory was 118.2MB in the beginning and 116.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:08:35,786 INFO L158 Benchmark]: Boogie Preprocessor took 43.83ms. Allocated memory is still 159.4MB. Free memory was 116.9MB in the beginning and 115.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:35,787 INFO L158 Benchmark]: RCFGBuilder took 497.98ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 104.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:35,789 INFO L158 Benchmark]: CodeCheck took 417.29ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 93.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:35,790 INFO L158 Benchmark]: Witness Printer took 9.83ms. Allocated memory is still 159.4MB. Free memory was 93.2MB in the beginning and 92.8MB in the end (delta: 369.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:35,799 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 0.31ms. Allocated memory is still 117.4MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 351.73ms. Allocated memory is still 159.4MB. Free memory was 128.3MB in the beginning and 118.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.97ms. Allocated memory is still 159.4MB. Free memory was 118.2MB in the beginning and 116.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.83ms. Allocated memory is still 159.4MB. Free memory was 116.9MB in the beginning and 115.7MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 497.98ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 104.7MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 417.29ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 93.2MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 9.83ms. Allocated memory is still 159.4MB. Free memory was 93.2MB in the beginning and 92.8MB in the end (delta: 369.3kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 23:08:35,843 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/inv_square_int.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi --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 0.2.4-dev-0e0057c [2023-11-24 23:08:38,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 23:08:39,085 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 23:08:39,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 23:08:39,148 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 23:08:39,149 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 23:08:39,151 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 23:08:39,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 23:08:39,153 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 23:08:39,159 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 23:08:39,160 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 23:08:39,161 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 23:08:39,161 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 23:08:39,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 23:08:39,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 23:08:39,165 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 23:08:39,165 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 23:08:39,166 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 23:08:39,166 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 23:08:39,168 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 23:08:39,168 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 23:08:39,169 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 23:08:39,170 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 23:08:39,170 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 23:08:39,171 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 23:08:39,171 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:39,172 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 23:08:39,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 23:08:39,173 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:39,174 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 23:08:39,175 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 23:08:39,176 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 23:08:39,176 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 23:08:39,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:39,177 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 23:08:39,177 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 23:08:39,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 23:08:39,178 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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d6111f1172e07b7206075be423d21f33b529e79943d78b2db976fd996371e2d [2023-11-24 23:08:39,691 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 23:08:39,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 23:08:39,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 23:08:39,730 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 23:08:39,730 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 23:08:39,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-24 23:08:43,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 23:08:43,537 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 23:08:43,537 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/sv-benchmarks/c/float-benchs/inv_square_int.c [2023-11-24 23:08:43,544 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data/2e0ecf89e/1302c09ed4454ff6907be9a5e4c012ed/FLAGf646e115a [2023-11-24 23:08:43,559 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/data/2e0ecf89e/1302c09ed4454ff6907be9a5e4c012ed [2023-11-24 23:08:43,562 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 23:08:43,564 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 23:08:43,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:43,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 23:08:43,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 23:08:43,571 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:43,573 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@258c5235 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43, skipping insertion in model container [2023-11-24 23:08:43,573 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:43,595 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 23:08:43,813 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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-24 23:08:43,834 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:43,855 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 23:08:43,873 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_9abe0b15-9cee-4091-88c6-e51ccb653e8b/sv-benchmarks/c/float-benchs/inv_square_int.c[482,495] [2023-11-24 23:08:43,878 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 23:08:43,902 INFO L206 MainTranslator]: Completed translation [2023-11-24 23:08:43,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43 WrapperNode [2023-11-24 23:08:43,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 23:08:43,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:43,905 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 23:08:43,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 23:08:43,916 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:43,934 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:43,957 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 31 [2023-11-24 23:08:43,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 23:08:43,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 23:08:43,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 23:08:43,960 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 23:08:43,971 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:43,972 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:43,988 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:43,989 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:44,005 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:44,009 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:44,014 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:44,022 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:44,026 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 23:08:44,030 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 23:08:44,031 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 23:08:44,031 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 23:08:44,032 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 11:08:43" (1/1) ... [2023-11-24 23:08:44,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 23:08:44,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 23:08:44,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 23:08:44,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 23:08:44,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 23:08:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 23:08:44,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 23:08:44,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 23:08:44,226 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 23:08:44,228 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 23:08:46,234 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 23:08:46,287 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 23:08:46,287 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 23:08:46,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:46 BoogieIcfgContainer [2023-11-24 23:08:46,290 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 23:08:46,290 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 23:08:46,291 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 23:08:46,301 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 23:08:46,301 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:46" (1/1) ... [2023-11-24 23:08:46,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 23:08:46,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:46,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2023-11-24 23:08:46,368 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2023-11-24 23:08:46,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2023-11-24 23:08:46,370 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 23:08:46,370 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 23:08:46,371 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 23:08:46,372 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 23:08:46,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 23:08:46,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:46,591 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 23:08:47,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 23:08:47,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 19 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-24 23:08:47,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 23:08:48,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 23:08:48,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-24 23:08:49,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 23:08:49,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 4 states and 3 transitions. [2023-11-24 23:08:49,070 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2023-11-24 23:08:49,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-24 23:08:49,070 WARN L420 CodeCheckObserver]: This Program is SAFE, Check terminated with 2 iterations. [2023-11-24 23:08:49,079 INFO L751 CodeCheckObserver]: All specifications hold 1 specifications checked. All of them hold [2023-11-24 23:08:49,091 INFO L560 CodeCheckObserver]: Invariant with dag size 1 [2023-11-24 23:08:49,094 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 11:08:49 ImpRootNode [2023-11-24 23:08:49,095 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 23:08:49,095 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 23:08:49,096 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 23:08:49,096 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 23:08:49,096 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 11:08:46" (3/4) ... [2023-11-24 23:08:49,099 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-24 23:08:49,108 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2023-11-24 23:08:49,108 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2023-11-24 23:08:49,109 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-24 23:08:49,109 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-24 23:08:49,208 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/witness.graphml [2023-11-24 23:08:49,208 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/witness.yml [2023-11-24 23:08:49,208 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 23:08:49,209 INFO L158 Benchmark]: Toolchain (without parser) took 5645.07ms. Allocated memory is still 88.1MB. Free memory was 64.4MB in the beginning and 42.6MB in the end (delta: 21.8MB). Peak memory consumption was 22.9MB. Max. memory is 16.1GB. [2023-11-24 23:08:49,209 INFO L158 Benchmark]: CDTParser took 0.38ms. Allocated memory is still 88.1MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:49,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 338.72ms. Allocated memory is still 88.1MB. Free memory was 64.2MB in the beginning and 53.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:49,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.34ms. Allocated memory is still 88.1MB. Free memory was 53.4MB in the beginning and 51.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 23:08:49,210 INFO L158 Benchmark]: Boogie Preprocessor took 70.59ms. Allocated memory is still 88.1MB. Free memory was 51.7MB in the beginning and 50.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 23:08:49,211 INFO L158 Benchmark]: RCFGBuilder took 2259.23ms. Allocated memory is still 88.1MB. Free memory was 50.5MB in the beginning and 63.2MB in the end (delta: -12.8MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. [2023-11-24 23:08:49,211 INFO L158 Benchmark]: CodeCheck took 2804.21ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 46.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-24 23:08:49,212 INFO L158 Benchmark]: Witness Printer took 112.75ms. Allocated memory is still 88.1MB. Free memory was 46.8MB in the beginning and 42.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-24 23:08:49,214 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: 2.8s, 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, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.6s 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, 0.6s SatisfiabilityAnalysisTime, 1.2s 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 0.38ms. Allocated memory is still 88.1MB. Free memory is still 63.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 338.72ms. Allocated memory is still 88.1MB. Free memory was 64.2MB in the beginning and 53.4MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.34ms. Allocated memory is still 88.1MB. Free memory was 53.4MB in the beginning and 51.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.59ms. Allocated memory is still 88.1MB. Free memory was 51.7MB in the beginning and 50.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 2259.23ms. Allocated memory is still 88.1MB. Free memory was 50.5MB in the beginning and 63.2MB in the end (delta: -12.8MB). Peak memory consumption was 14.5MB. Max. memory is 16.1GB. * CodeCheck took 2804.21ms. Allocated memory is still 88.1MB. Free memory was 63.2MB in the beginning and 46.8MB in the end (delta: 16.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 112.75ms. Allocated memory is still 88.1MB. Free memory was 46.8MB in the beginning and 42.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. RESULT: Ultimate proved your program to be correct! [2023-11-24 23:08:49,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9abe0b15-9cee-4091-88c6-e51ccb653e8b/bin/ukojak-verify-afCqCEvfdi/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