./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk --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 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:18:53,099 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:18:53,191 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Default.epf [2024-11-08 23:18:53,195 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:18:53,196 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2024-11-08 23:18:53,227 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:18:53,230 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:18:53,230 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:18:53,231 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:18:53,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:18:53,233 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:18:53,233 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:18:53,234 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:18:53,236 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:18:53,237 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:18:53,237 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:18:53,237 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:18:53,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:18:53,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:18:53,239 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:18:53,243 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:18:53,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:18:53,244 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:18:53,245 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:18:53,245 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:18:53,245 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:18:53,246 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:18:53,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:18:53,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:18:53,247 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:18:53,247 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:18:53,247 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2024-11-08 23:18:53,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:18:53,249 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_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 [2024-11-08 23:18:53,543 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:18:53,571 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:18:53,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:18:53,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:18:53,576 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:18:53,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i Unable to find full path for "g++" [2024-11-08 23:18:55,627 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:18:55,815 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:18:55,816 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i [2024-11-08 23:18:55,829 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data/72455cffa/7ed744df666148fa9d35506bbabc272c/FLAGbfbc6d483 [2024-11-08 23:18:56,194 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data/72455cffa/7ed744df666148fa9d35506bbabc272c [2024-11-08 23:18:56,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:18:56,198 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:18:56,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:18:56,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:18:56,205 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:18:56,206 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b953b33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56, skipping insertion in model container [2024-11-08 23:18:56,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,233 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:18:56,433 WARN L250 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_d377f27f-9b21-4d69-82bf-3828ab3d678f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-11-08 23:18:56,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:18:56,490 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:18:56,507 WARN L250 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_d377f27f-9b21-4d69-82bf-3828ab3d678f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-11-08 23:18:56,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:18:56,558 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:18:56,559 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56 WrapperNode [2024-11-08 23:18:56,559 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:18:56,560 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:18:56,560 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:18:56,561 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:18:56,567 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,575 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,606 INFO L138 Inliner]: procedures = 26, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2024-11-08 23:18:56,607 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:18:56,608 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:18:56,608 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:18:56,608 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:18:56,621 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,621 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,623 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,630 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,634 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,636 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,638 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,640 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:18:56,642 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:18:56,642 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:18:56,642 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:18:56,643 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:18:56" (1/1) ... [2024-11-08 23:18:56,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:18:56,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:18:56,689 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:18:56,700 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:18:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:18:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:18:56,732 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:18:56,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-08 23:18:56,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:18:56,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:18:56,839 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:18:56,844 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:18:57,243 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-08 23:18:57,244 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:18:57,492 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:18:57,492 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:18:57,492 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:18:57 BoogieIcfgContainer [2024-11-08 23:18:57,492 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:18:57,494 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:18:57,494 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:18:57,505 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:18:57,505 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:18:57" (1/1) ... [2024-11-08 23:18:57,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:18:57,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:18:57,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2024-11-08 23:18:57,592 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2024-11-08 23:18:57,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 23:18:57,600 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:18:57,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:18:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-08 23:18:58,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:18:58,075 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-08 23:18:58,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-08 23:18:58,208 WARN L473 CodeCheckObserver]: This program is UNSAFE, Check terminated with 1 iterations. [2024-11-08 23:18:58,277 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 08.11 11:18:58 ImpRootNode [2024-11-08 23:18:58,277 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2024-11-08 23:18:58,278 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 23:18:58,278 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 23:18:58,278 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 23:18:58,279 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:18:57" (3/4) ... [2024-11-08 23:18:58,284 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-08 23:18:58,286 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 23:18:58,288 INFO L158 Benchmark]: Toolchain (without parser) took 2088.99ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 91.4MB in the end (delta: 23.8MB). Peak memory consumption was 25.6MB. Max. memory is 16.1GB. [2024-11-08 23:18:58,289 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:18:58,290 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.80ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 101.2MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 23:18:58,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.87ms. Allocated memory is still 157.3MB. Free memory was 100.6MB in the beginning and 98.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 23:18:58,292 INFO L158 Benchmark]: Boogie Preprocessor took 33.25ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:18:58,293 INFO L158 Benchmark]: RCFGBuilder took 850.87ms. Allocated memory is still 157.3MB. Free memory was 97.2MB in the beginning and 122.9MB in the end (delta: -25.7MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. [2024-11-08 23:18:58,295 INFO L158 Benchmark]: CodeCheck took 783.70ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 91.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2024-11-08 23:18:58,295 INFO L158 Benchmark]: Witness Printer took 8.38ms. Allocated memory is still 157.3MB. Free memory was 91.4MB in the beginning and 91.4MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 23:18:58,300 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 2 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 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: 19]: 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 shiftRight at line 44. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed short int var_1_1 = 2; [L23] signed short int var_1_4 = -64; [L24] signed short int var_1_5 = 256; [L25] unsigned short int var_1_6 = 128; [L26] unsigned short int var_1_7 = 256; [L27] signed long int var_1_8 = 50; [L28] unsigned char var_1_9 = 0; [L29] signed long int var_1_10 = -4; [L30] signed long int var_1_11 = 15; [L31] signed long int var_1_12 = 0; [L32] signed long int var_1_13 = 25; [L33] unsigned short int var_1_14 = 50; [L34] signed short int last_1_var_1_1 = 2; [L35] unsigned short int last_1_var_1_6 = 128; [L36] signed long int last_1_var_1_8 = 50; [L99] isInitial = 1 [L100] FCALL initially() [L101] COND TRUE 1 [L102] CALL updateLastVariables() [L90] last_1_var_1_1 = var_1_1 [L91] last_1_var_1_6 = var_1_6 [L92] last_1_var_1_8 = var_1_8 [L102] RET updateLastVariables() [L103] CALL updateVariables() [L69] var_1_4 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_4 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=256, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_4 >= -16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=256, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L71] CALL assume_abort_if_not(var_1_4 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=256, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L20] COND FALSE !(!cond) [L71] RET assume_abort_if_not(var_1_4 <= 16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=256, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L72] var_1_5 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_5 >= -16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L20] COND FALSE !(!cond) [L73] RET assume_abort_if_not(var_1_5 >= -16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L74] CALL assume_abort_if_not(var_1_5 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L20] COND FALSE !(!cond) [L74] RET assume_abort_if_not(var_1_5 <= 16383) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=256, var_1_8=50, var_1_9=0] [L75] var_1_7 = __VERIFIER_nondet_ushort() [L76] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_8=50, var_1_9=0] [L20] COND FALSE !(!cond) [L76] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_8=50, var_1_9=0] [L77] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=0] [L20] COND FALSE !(!cond) [L77] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=0] [L78] var_1_9 = __VERIFIER_nondet_uchar() [L79] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50] [L20] COND FALSE !(!cond) [L79] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50] [L80] CALL assume_abort_if_not(var_1_9 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L20] COND FALSE !(!cond) [L80] RET assume_abort_if_not(var_1_9 <= 1) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=-4, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L81] var_1_10 = __VERIFIER_nondet_long() [L82] CALL assume_abort_if_not(var_1_10 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L20] COND FALSE !(!cond) [L82] RET assume_abort_if_not(var_1_10 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L83] CALL assume_abort_if_not(var_1_10 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L20] COND FALSE !(!cond) [L83] RET assume_abort_if_not(var_1_10 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L84] CALL assume_abort_if_not(var_1_10 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L20] COND FALSE !(!cond) [L84] RET assume_abort_if_not(var_1_10 != 0) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=0, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L85] var_1_12 = __VERIFIER_nondet_long() [L86] CALL assume_abort_if_not(var_1_12 >= -2147483648) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=-2147483648, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L20] COND FALSE !(!cond) [L86] RET assume_abort_if_not(var_1_12 >= -2147483648) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=-2147483648, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L87] CALL assume_abort_if_not(var_1_12 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=-2147483648, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L20] COND FALSE !(!cond) [L87] RET assume_abort_if_not(var_1_12 <= 2147483647) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=15, var_1_12=-2147483648, var_1_13=25, var_1_14=50, var_1_1=2, var_1_4=-4, var_1_5=2, var_1_6=128, var_1_7=-131022, var_1_8=50, var_1_9=1] [L103] RET updateVariables() [L104] CALL step() [L40] COND TRUE ! (last_1_var_1_6 <= last_1_var_1_1) [L41] var_1_1 = (var_1_4 + var_1_5) [L43] signed long int stepLocal_0 = 1 * var_1_4; [L44] EXPR var_1_1 >> var_1_5 [L44] COND FALSE !((var_1_1 >> var_1_5) > stepLocal_0) [L47] var_1_6 = var_1_7 [L49] var_1_11 = var_1_12 [L50] var_1_13 = var_1_12 [L51] var_1_14 = var_1_7 [L52] signed long int stepLocal_2 = var_1_4 / var_1_10; [L53] unsigned short int stepLocal_1 = var_1_7; [L54] COND TRUE \read(var_1_9) [L55] var_1_8 = ((((var_1_6) < (last_1_var_1_8)) ? (var_1_6) : (last_1_var_1_8))) [L104] RET step() [L105] CALL, EXPR property() [L95] EXPR ((! (last_1_var_1_6 <= last_1_var_1_1)) ? (var_1_1 == ((signed short int) (var_1_4 + var_1_5))) : 1) && (((var_1_1 >> var_1_5) > (1 * var_1_4)) ? (var_1_6 == ((unsigned short int) (((((42286 - var_1_7)) > (0)) ? ((42286 - var_1_7)) : (0))))) : (var_1_6 == ((unsigned short int) var_1_7))) [L95] EXPR var_1_1 >> var_1_5 [L95] EXPR ((! (last_1_var_1_6 <= last_1_var_1_1)) ? (var_1_1 == ((signed short int) (var_1_4 + var_1_5))) : 1) && (((var_1_1 >> var_1_5) > (1 * var_1_4)) ? (var_1_6 == ((unsigned short int) (((((42286 - var_1_7)) > (0)) ? ((42286 - var_1_7)) : (0))))) : (var_1_6 == ((unsigned short int) var_1_7))) [L95-L96] return ((((((! (last_1_var_1_6 <= last_1_var_1_1)) ? (var_1_1 == ((signed short int) (var_1_4 + var_1_5))) : 1) && (((var_1_1 >> var_1_5) > (1 * var_1_4)) ? (var_1_6 == ((unsigned short int) (((((42286 - var_1_7)) > (0)) ? ((42286 - var_1_7)) : (0))))) : (var_1_6 == ((unsigned short int) var_1_7)))) && (var_1_9 ? (var_1_8 == ((signed long int) ((((var_1_6) < (last_1_var_1_8)) ? (var_1_6) : (last_1_var_1_8))))) : ((var_1_14 > (var_1_4 / var_1_10)) ? ((var_1_7 > var_1_6) ? (var_1_8 == ((signed long int) ((((var_1_4) < (100)) ? (var_1_4) : (100))))) : (var_1_8 == ((signed long int) (last_1_var_1_8 - var_1_7)))) : (var_1_8 == ((signed long int) (var_1_6 + var_1_5)))))) && (var_1_11 == ((signed long int) var_1_12))) && (var_1_13 == ((signed long int) var_1_12))) && (var_1_14 == ((unsigned short int) var_1_7)) ; [L105] RET, EXPR property() [L105] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=-2147483648, var_1_12=-2147483648, var_1_13=-2147483648, var_1_14=-131022, var_1_1=-2, var_1_4=-4, var_1_5=2, var_1_6=-131022, var_1_7=-131022, var_1_8=50, var_1_9=1] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=2, last_1_var_1_6=128, last_1_var_1_8=50, var_1_10=3, var_1_11=-2147483648, var_1_12=-2147483648, var_1_13=-2147483648, var_1_14=-131022, var_1_1=-2, var_1_4=-4, var_1_5=2, var_1_6=-131022, var_1_7=-131022, var_1_8=50, var_1_9=1] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 115.3MB. Free memory is still 67.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.80ms. Allocated memory is still 157.3MB. Free memory was 115.3MB in the beginning and 101.2MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.87ms. Allocated memory is still 157.3MB. Free memory was 100.6MB in the beginning and 98.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.25ms. Allocated memory is still 157.3MB. Free memory was 98.5MB in the beginning and 97.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 850.87ms. Allocated memory is still 157.3MB. Free memory was 97.2MB in the beginning and 122.9MB in the end (delta: -25.7MB). Peak memory consumption was 36.0MB. Max. memory is 16.1GB. * CodeCheck took 783.70ms. Allocated memory is still 157.3MB. Free memory was 122.9MB in the beginning and 91.4MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 8.38ms. Allocated memory is still 157.3MB. Free memory was 91.4MB in the beginning and 91.4MB in the end (delta: 2.7kB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-08 23:18:58,346 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/config/KojakReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk --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 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 23:19:00,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:19:00,793 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2024-11-08 23:19:00,844 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:19:00,845 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:19:00,845 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2024-11-08 23:19:00,847 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:19:00,850 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:19:00,850 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:19:00,851 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:19:00,851 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:19:00,851 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:19:00,852 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:19:00,852 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:19:00,852 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:19:00,853 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:19:00,857 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-08 23:19:00,857 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-08 23:19:00,857 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:19:00,858 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-08 23:19:00,858 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:19:00,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:19:00,859 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:19:00,859 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2024-11-08 23:19:00,860 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2024-11-08 23:19:00,863 INFO L153 SettingsManager]: * Theory for external solver=ALL [2024-11-08 23:19:00,863 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:19:00,864 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2024-11-08 23:19:00,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:19:00,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:19:00,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:19:00,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:19:00,865 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:19:00,866 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2024-11-08 23:19:00,866 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-08 23:19:00,869 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2024-11-08 23:19:00,870 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_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84717a5c2896f013826b4f3140ab30111b65bd200eaa9dc30a2a86e9a93af713 [2024-11-08 23:19:01,274 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:19:01,303 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:19:01,306 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:19:01,307 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:19:01,308 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:19:01,309 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/../../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i Unable to find full path for "g++" [2024-11-08 23:19:03,383 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:19:03,652 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:19:03,653 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i [2024-11-08 23:19:03,662 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data/37ce55582/2f37d377cb42439d8f4b9e012d407a8e/FLAG02b3e2178 [2024-11-08 23:19:03,677 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/data/37ce55582/2f37d377cb42439d8f4b9e012d407a8e [2024-11-08 23:19:03,680 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:19:03,682 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:19:03,683 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:19:03,683 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:19:03,688 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:19:03,689 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:19:03" (1/1) ... [2024-11-08 23:19:03,690 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a7e6b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:03, skipping insertion in model container [2024-11-08 23:19:03,690 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:19:03" (1/1) ... [2024-11-08 23:19:03,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:19:03,950 WARN L250 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_d377f27f-9b21-4d69-82bf-3828ab3d678f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-11-08 23:19:04,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:19:04,039 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:19:04,055 WARN L250 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_d377f27f-9b21-4d69-82bf-3828ab3d678f/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-67.i[916,929] [2024-11-08 23:19:04,078 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:19:04,098 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:19:04,098 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04 WrapperNode [2024-11-08 23:19:04,099 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:19:04,100 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:19:04,100 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:19:04,100 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:19:04,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,176 INFO L138 Inliner]: procedures = 27, calls = 26, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 100 [2024-11-08 23:19:04,176 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:19:04,181 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:19:04,181 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:19:04,181 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:19:04,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,195 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,196 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,224 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,231 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,233 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,234 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:19:04,246 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:19:04,246 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:19:04,247 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:19:04,248 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:19:04" (1/1) ... [2024-11-08 23:19:04,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2024-11-08 23:19:04,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/z3 [2024-11-08 23:19:04,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2024-11-08 23:19:04,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2024-11-08 23:19:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:19:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-11-08 23:19:04,325 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:19:04,326 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:19:04,326 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:19:04,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:19:04,432 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:19:04,434 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:19:04,859 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 23:19:04,859 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:19:05,087 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:19:05,091 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:19:05,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:19:05 BoogieIcfgContainer [2024-11-08 23:19:05,092 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:19:05,093 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2024-11-08 23:19:05,093 INFO L270 PluginConnector]: Initializing CodeCheck... [2024-11-08 23:19:05,104 INFO L274 PluginConnector]: CodeCheck initialized [2024-11-08 23:19:05,104 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:19:05" (1/1) ... [2024-11-08 23:19:05,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:19:05,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2024-11-08 23:19:05,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2024-11-08 23:19:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2024-11-08 23:19:05,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-08 23:19:05,177 INFO L420 CodeCheckObserver]: Error Path is FOUND. [2024-11-08 23:19:05,177 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-08 23:19:05,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/cvc4 [2024-11-08 23:19:05,181 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-08 23:19:05,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d377f27f-9b21-4d69-82bf-3828ab3d678f/bin/ukojak-verify-ImItNfHLgk/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-08 23:19:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:19:05,497 ERROR L567 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2024-11-08 23:19:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:19:05,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-08 23:19:05,629 INFO L278 TraceCheckSpWp]: Computing forward predicates...