./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:59:09,389 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:59:09,462 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:59:09,468 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:59:09,468 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:59:09,494 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:59:09,495 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:59:09,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:59:09,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:59:09,498 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:59:09,498 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:59:09,499 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:59:09,500 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:59:09,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:59:09,501 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:59:09,502 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:59:09,502 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:59:09,503 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:59:09,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:59:09,504 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:59:09,505 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:59:09,506 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:59:09,506 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:59:09,507 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:59:09,507 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:59:09,508 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:59:09,508 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:59:09,509 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:59:09,509 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:59:09,510 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:59:09,510 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:59:09,511 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:59:09,511 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:59:09,512 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_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 [2023-11-19 02:59:09,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:59:09,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:59:09,831 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:59:09,833 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:59:09,834 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:59:09,835 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-11-19 02:59:13,034 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:59:13,250 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:59:13,251 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-11-19 02:59:13,269 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data/80a79f1c6/0ba4064f696d4918b6bd8b31a766dfb8/FLAGd36b47481 [2023-11-19 02:59:13,288 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data/80a79f1c6/0ba4064f696d4918b6bd8b31a766dfb8 [2023-11-19 02:59:13,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:59:13,293 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:59:13,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:59:13,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:59:13,301 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:59:13,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e8558f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13, skipping insertion in model container [2023-11-19 02:59:13,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,338 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:59:13,544 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_c8eeeabd-42df-466a-a468-1b617a93d970/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-11-19 02:59:13,549 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:59:13,568 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:59:13,592 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_c8eeeabd-42df-466a-a468-1b617a93d970/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-11-19 02:59:13,593 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:59:13,608 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:59:13,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13 WrapperNode [2023-11-19 02:59:13,609 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:59:13,610 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:59:13,610 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:59:13,611 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:59:13,619 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,629 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,654 INFO L138 Inliner]: procedures = 18, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-11-19 02:59:13,654 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:59:13,655 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:59:13,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:59:13,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:59:13,663 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,664 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,667 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,667 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,675 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,683 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,689 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,695 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:59:13,696 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:59:13,697 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:59:13,697 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:59:13,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:13" (1/1) ... [2023-11-19 02:59:13,718 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:59:13,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:59:13,745 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:59:13,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:59:13,796 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:59:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:59:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:59:13,797 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2023-11-19 02:59:13,798 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2023-11-19 02:59:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 02:59:13,798 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:59:13,799 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:59:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:59:13,800 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:59:13,951 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:59:13,953 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:59:14,275 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:59:14,426 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:59:14,426 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 02:59:14,431 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:14 BoogieIcfgContainer [2023-11-19 02:59:14,431 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:59:14,432 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:59:14,433 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:59:14,445 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:59:14,446 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:14" (1/1) ... [2023-11-19 02:59:14,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:59:14,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:14,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-11-19 02:59:14,539 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-11-19 02:59:14,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:59:14,549 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:14,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:59:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:14,760 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:59:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:14,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-19 02:59:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-19 02:59:14,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 02:59:14,797 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:14,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:59:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:59:14,852 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:59:14,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:59:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:59:14,951 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:59:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:59:14,985 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 02:59:15,027 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated [2023-11-19 02:59:15,029 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-19 02:59:15,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:59:15 ImpRootNode [2023-11-19 02:59:15,034 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:59:15,035 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:59:15,035 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:59:15,035 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:59:15,036 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:14" (3/4) ... [2023-11-19 02:59:15,044 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:59:15,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:59:15,047 INFO L158 Benchmark]: Toolchain (without parser) took 1753.43ms. Allocated memory was 192.9MB in the beginning and 255.9MB in the end (delta: 62.9MB). Free memory was 144.7MB in the beginning and 209.9MB in the end (delta: -65.2MB). Peak memory consumption was 582.6kB. Max. memory is 16.1GB. [2023-11-19 02:59:15,048 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 192.9MB. Free memory was 154.5MB in the beginning and 154.5MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:59:15,049 INFO L158 Benchmark]: CACSL2BoogieTranslator took 315.18ms. Allocated memory is still 192.9MB. Free memory was 144.4MB in the beginning and 133.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:59:15,049 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.24ms. Allocated memory is still 192.9MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:59:15,050 INFO L158 Benchmark]: Boogie Preprocessor took 40.37ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 130.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:59:15,051 INFO L158 Benchmark]: RCFGBuilder took 735.20ms. Allocated memory is still 192.9MB. Free memory was 130.0MB in the beginning and 110.5MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 02:59:15,051 INFO L158 Benchmark]: CodeCheck took 601.77ms. Allocated memory was 192.9MB in the beginning and 255.9MB in the end (delta: 62.9MB). Free memory was 110.1MB in the beginning and 209.9MB in the end (delta: -99.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:59:15,052 INFO L158 Benchmark]: Witness Printer took 10.39ms. Allocated memory is still 255.9MB. Free memory is still 209.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:59:15,055 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, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 16 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 79 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, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 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 - UnprovableResult [Line: 87]: 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 someBinaryDOUBLEComparisonOperation at line 86, overapproximation of someUnaryDOUBLEoperation at line 82. Possible FailurePath: [L81] double x = 0.0; [L82] double y = -0.0; [L83] CALL, EXPR fmax_double(x, y) [L54] CALL, EXPR __fpclassify_double(x) VAL [\old(x)=0] [L26] __uint32_t msw, lsw; VAL [\old(x)=0, x=0] [L29] ieee_double_shape_type ew_u; [L30] EXPR ew_u.value = (x) [L31] EXPR ew_u.parts.msw [L31] EXPR (msw) = ew_u.parts.msw [L32] EXPR ew_u.parts.lsw [L32] EXPR (lsw) = ew_u.parts.lsw [L28-L33] { ieee_double_shape_type ew_u; ew_u.value = (x); (msw) = ew_u.parts.msw; (lsw) = ew_u.parts.lsw; } VAL [\old(x)=0, lsw=9, msw=4293918721, x=0] [L35-L36] COND FALSE !((msw == 0x00000000 && lsw == 0x00000000) || (msw == 0x80000000 && lsw == 0x00000000)) [L38-L39] COND FALSE !((msw >= 0x00100000 && msw <= 0x7fefffff) || (msw >= 0x80100000 && msw <= 0xffefffff)) [L41-L42] COND FALSE !(( msw <= 0x000fffff) || (msw >= 0x80000000 && msw <= 0x800fffff)) [L45-L46] COND FALSE !((msw == 0x7ff00000 && lsw == 0x00000000) || (msw == 0xfff00000 && lsw == 0x00000000)) [L49] return 0; [L54] RET, EXPR __fpclassify_double(x) VAL [\old(x)=0, \old(y)=2, x=0, y=2] [L54] COND TRUE __fpclassify_double(x) == 0 [L55] return y; VAL [\old(x)=0, \old(y)=2, \result=2, x=0, y=2] [L83] RET, EXPR fmax_double(x, y) [L83] double res = fmax_double(x, y); [L86] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [res=2, x=0, y=2] [L86] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L87] reach_error() VAL [res=2, x=0, y=2] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 192.9MB. Free memory was 154.5MB in the beginning and 154.5MB in the end (delta: 28.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 315.18ms. Allocated memory is still 192.9MB. Free memory was 144.4MB in the beginning and 133.1MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.24ms. Allocated memory is still 192.9MB. Free memory was 133.1MB in the beginning and 131.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 40.37ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 130.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 735.20ms. Allocated memory is still 192.9MB. Free memory was 130.0MB in the beginning and 110.5MB in the end (delta: 19.5MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 601.77ms. Allocated memory was 192.9MB in the beginning and 255.9MB in the end (delta: 62.9MB). Free memory was 110.1MB in the beginning and 209.9MB in the end (delta: -99.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 10.39ms. Allocated memory is still 255.9MB. Free memory is still 209.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:59:15,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:59:17,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:59:17,946 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 02:59:17,978 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:59:17,979 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:59:17,980 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:59:17,981 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:59:17,982 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:59:17,982 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:59:17,983 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:59:17,983 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:59:17,984 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:59:17,985 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:59:17,985 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:59:17,986 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:59:17,986 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:59:17,987 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:59:17,988 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:59:17,988 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:59:17,989 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:59:17,989 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:59:17,990 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:59:17,990 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:59:17,991 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:59:17,991 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:59:17,992 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:17,992 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:59:17,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:59:17,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:59:17,994 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:59:17,994 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:59:17,995 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:59:17,995 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:59:17,996 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:17,996 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:59:17,997 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:59:17,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:59:17,998 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_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72e6a731e5f93184d8452e046ba5fa07483889ea5d4b2985d4608011d07f1d55 [2023-11-19 02:59:18,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:59:18,382 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:59:18,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:59:18,387 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:59:18,388 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:59:18,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-11-19 02:59:21,595 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:59:21,886 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:59:21,887 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c [2023-11-19 02:59:21,898 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data/5309551d1/b366c9527f5d4a1096edd8568c40715e/FLAGcee3e27d3 [2023-11-19 02:59:21,921 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/data/5309551d1/b366c9527f5d4a1096edd8568c40715e [2023-11-19 02:59:21,928 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:59:21,931 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:59:21,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:59:21,936 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:59:21,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:59:21,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:21" (1/1) ... [2023-11-19 02:59:21,945 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ae50ac4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:21, skipping insertion in model container [2023-11-19 02:59:21,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:59:21" (1/1) ... [2023-11-19 02:59:21,974 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:59:22,199 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_c8eeeabd-42df-466a-a468-1b617a93d970/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-11-19 02:59:22,204 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:59:22,221 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:59:22,248 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_c8eeeabd-42df-466a-a468-1b617a93d970/sv-benchmarks/c/float-newlib/double_req_bl_1252b.c[2154,2167] [2023-11-19 02:59:22,249 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:59:22,269 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:59:22,269 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22 WrapperNode [2023-11-19 02:59:22,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:59:22,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:59:22,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:59:22,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:59:22,279 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,292 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,315 INFO L138 Inliner]: procedures = 21, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-11-19 02:59:22,316 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:59:22,317 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:59:22,317 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:59:22,317 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:59:22,327 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,328 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,333 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,333 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,352 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,354 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,359 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:59:22,360 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:59:22,360 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:59:22,360 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:59:22,362 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:22,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:59:22,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:59:22,413 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:59:22,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:59:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:59:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-19 02:59:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:59:22,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:59:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_double [2023-11-19 02:59:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_double [2023-11-19 02:59:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 02:59:22,479 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:59:22,479 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:59:22,480 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:59:22,568 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:59:22,570 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:59:22,859 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:59:22,986 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:59:22,987 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 02:59:22,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:22 BoogieIcfgContainer [2023-11-19 02:59:22,991 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:59:22,992 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:59:22,992 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:59:23,004 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:59:23,004 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:59:22" (1/1) ... [2023-11-19 02:59:23,015 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:59:23,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:23,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-11-19 02:59:23,106 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-11-19 02:59:23,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 02:59:23,113 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:23,114 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:23,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:23,121 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:23,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:59:23,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,345 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:23,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:59:23,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:23,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:59:23,443 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:23,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 02:59:23,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:23,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-11-19 02:59:23,500 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-19 02:59:23,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 02:59:23,501 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:23,502 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:23,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:23,503 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:23,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:59:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,870 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:23,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 02:59:23,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:23,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:59:24,000 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:24,007 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:24,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:24,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 27 transitions. [2023-11-19 02:59:24,164 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-19 02:59:24,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 02:59:24,165 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:24,166 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:24,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:24,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:24,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 02:59:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:24,361 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:24,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:24,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:59:24,395 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:24,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:59:24,413 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:24,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:24,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:24,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 25 transitions. [2023-11-19 02:59:24,431 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-19 02:59:24,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 02:59:24,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:24,433 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:24,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:24,435 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:24,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 02:59:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:24,797 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:24,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:24,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 02:59:24,838 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:28,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 02:59:28,542 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:30,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:30,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 24 transitions. [2023-11-19 02:59:30,221 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-19 02:59:30,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 02:59:30,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:30,222 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:30,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:30,224 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:30,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 02:59:30,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:30,709 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:30,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:30,760 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 31 conjunts are in the unsatisfiable core [2023-11-19 02:59:30,765 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:35,268 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-19 02:59:35,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:35,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:35,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 20 states and 20 transitions. [2023-11-19 02:59:35,845 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-11-19 02:59:35,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 02:59:35,846 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:35,846 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:35,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:35,847 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:35,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c8eeeabd-42df-466a-a468-1b617a93d970/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 02:59:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:59:36,582 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:59:37,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat