./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/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_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/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_c4241d11-f12d-448b-baae-e1c828a1ece3/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 c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:07:11,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:07:11,959 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 04:07:11,968 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 04:07:11,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 04:07:12,031 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:07:12,032 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:07:12,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:07:12,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:07:12,039 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:07:12,040 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:07:12,040 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:07:12,041 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:07:12,043 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 04:07:12,043 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:07:12,044 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:07:12,044 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:07:12,045 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:07:12,045 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:07:12,045 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:07:12,046 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:07:12,046 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:07:12,047 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:07:12,047 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:07:12,048 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:07:12,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:07:12,049 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:12,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:07:12,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:07:12,051 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:07:12,052 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 04:07:12,052 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 04:07:12,053 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:07:12,054 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_c4241d11-f12d-448b-baae-e1c828a1ece3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 [2023-11-19 04:07:12,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:07:12,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:07:12,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:07:12,466 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:07:12,467 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:07:12,468 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-11-19 04:07:15,647 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:07:15,906 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:07:15,907 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-11-19 04:07:15,922 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data/5c519ddf6/07c71cc5300945fd827eaf2acb3b649f/FLAG5b50c96a4 [2023-11-19 04:07:15,942 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data/5c519ddf6/07c71cc5300945fd827eaf2acb3b649f [2023-11-19 04:07:15,950 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:07:15,955 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:07:15,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:15,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:07:15,965 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:07:15,966 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:15" (1/1) ... [2023-11-19 04:07:15,968 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ea7b528 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:15, skipping insertion in model container [2023-11-19 04:07:15,968 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:15" (1/1) ... [2023-11-19 04:07:15,997 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:07:16,238 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_c4241d11-f12d-448b-baae-e1c828a1ece3/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-11-19 04:07:16,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:16,253 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:07:16,278 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_c4241d11-f12d-448b-baae-e1c828a1ece3/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-11-19 04:07:16,279 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:16,295 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:07:16,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16 WrapperNode [2023-11-19 04:07:16,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:16,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:16,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:07:16,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:07:16,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,314 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,336 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2023-11-19 04:07:16,336 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:16,337 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:07:16,337 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:07:16,337 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:07:16,347 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,348 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,351 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,358 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,362 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,364 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,365 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,368 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:07:16,369 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:07:16,369 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:07:16,369 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:07:16,370 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:16,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:16,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:07:16,402 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:07:16,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:07:16,440 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:07:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 04:07:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:07:16,441 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-19 04:07:16,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-19 04:07:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 04:07:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:07:16,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:07:16,442 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 04:07:16,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:07:16,528 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:07:16,531 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:07:16,870 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:07:16,979 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:07:16,991 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:07:16,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:16 BoogieIcfgContainer [2023-11-19 04:07:16,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:07:16,997 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:07:16,998 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:07:17,008 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:07:17,009 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:16" (1/1) ... [2023-11-19 04:07:17,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:07:17,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:17,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 21 states and 28 transitions. [2023-11-19 04:07:17,095 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 28 transitions. [2023-11-19 04:07:17,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:07:17,102 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:17,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:17,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:17,322 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 04:07:17,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:17,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 21 states and 25 transitions. [2023-11-19 04:07:17,377 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2023-11-19 04:07:17,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 04:07:17,378 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:17,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 04:07:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:17,457 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:07:17,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:17,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:17,598 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:07:17,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:17,635 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 04:07:17,666 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-19 04:07:17,667 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short10 could not be translated [2023-11-19 04:07:17,670 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 04:07:17 ImpRootNode [2023-11-19 04:07:17,671 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 04:07:17,671 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 04:07:17,671 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 04:07:17,671 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 04:07:17,672 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:16" (3/4) ... [2023-11-19 04:07:17,674 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 04:07:17,675 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 04:07:17,676 INFO L158 Benchmark]: Toolchain (without parser) took 1721.33ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 90.9MB in the end (delta: 33.9MB). Peak memory consumption was 33.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:17,678 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:17,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.22ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 113.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 04:07:17,683 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.24ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:17,684 INFO L158 Benchmark]: Boogie Preprocessor took 30.91ms. Allocated memory is still 157.3MB. Free memory was 111.5MB in the beginning and 110.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 04:07:17,685 INFO L158 Benchmark]: RCFGBuilder took 627.52ms. Allocated memory is still 157.3MB. Free memory was 110.2MB in the beginning and 114.0MB in the end (delta: -3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 04:07:17,685 INFO L158 Benchmark]: CodeCheck took 673.69ms. Allocated memory is still 157.3MB. Free memory was 114.0MB in the beginning and 91.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 04:07:17,686 INFO L158 Benchmark]: Witness Printer took 4.15ms. Allocated memory is still 157.3MB. Free memory was 91.7MB in the beginning and 90.9MB in the end (delta: 805.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 04:07:17,689 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: 0.6s, 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: 81]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 80, overapproximation of someUnaryFLOAToperation at line 76. Possible FailurePath: [L75] float x = 0.0f; [L76] float y = -0.0f; [L77] CALL, EXPR fmax_float(x, y) [L46] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=0] [L23] __uint32_t w; VAL [\old(x)=0, x=0] [L26] ieee_float_shape_type gf_u; [L27] EXPR gf_u.value = (x) [L28] EXPR gf_u.word [L28] EXPR (w) = gf_u.word [L25-L29] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=0, w=2139095041, x=0] [L31] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L33-L34] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L36-L37] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L39] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L42] return 0; [L46] RET, EXPR __fpclassify_float(x) VAL [\old(x)=0, \old(y)=2, x=0, y=2] [L46] COND TRUE __fpclassify_float(x) == 0 [L47] return y; VAL [\old(x)=0, \old(y)=2, \result=2, x=0, y=2] [L77] RET, EXPR fmax_float(x, y) [L77] float res = fmax_float(x, y); [L80] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [res=2, x=0, y=2] [L80] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L81] 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 0.31ms. Allocated memory is still 125.8MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.22ms. Allocated memory is still 157.3MB. Free memory was 124.8MB in the beginning and 113.6MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.24ms. Allocated memory is still 157.3MB. Free memory was 113.6MB in the beginning and 111.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.91ms. Allocated memory is still 157.3MB. Free memory was 111.5MB in the beginning and 110.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 627.52ms. Allocated memory is still 157.3MB. Free memory was 110.2MB in the beginning and 114.0MB in the end (delta: -3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * CodeCheck took 673.69ms. Allocated memory is still 157.3MB. Free memory was 114.0MB in the beginning and 91.7MB in the end (delta: 22.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.15ms. Allocated memory is still 157.3MB. Free memory was 91.7MB in the beginning and 90.9MB in the end (delta: 805.5kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short10 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 04:07:17,725 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/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_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/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_c4241d11-f12d-448b-baae-e1c828a1ece3/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 c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 04:07:20,812 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 04:07:20,954 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 04:07:20,992 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 04:07:20,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 04:07:20,994 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 04:07:20,995 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 04:07:20,996 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 04:07:20,997 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 04:07:20,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 04:07:20,999 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 04:07:20,999 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 04:07:21,000 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 04:07:21,001 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 04:07:21,002 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 04:07:21,002 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 04:07:21,003 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 04:07:21,004 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 04:07:21,004 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 04:07:21,005 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 04:07:21,006 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 04:07:21,007 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 04:07:21,007 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 04:07:21,008 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 04:07:21,009 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 04:07:21,009 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:21,010 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 04:07:21,011 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 04:07:21,011 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:21,012 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 04:07:21,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 04:07:21,013 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 04:07:21,014 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 04:07:21,014 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:21,015 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 04:07:21,016 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 04:07:21,016 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 04:07:21,017 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_c4241d11-f12d-448b-baae-e1c828a1ece3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12eaf00463983fc4c27f56efba3b68bea09d23ae311c93edfb6c8bce7a55280 [2023-11-19 04:07:21,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 04:07:21,580 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 04:07:21,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 04:07:21,585 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 04:07:21,586 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 04:07:21,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-11-19 04:07:25,274 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 04:07:25,538 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 04:07:25,538 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c [2023-11-19 04:07:25,547 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data/7a30f0618/edf517ef9ab04c4fa5ef47eb366cf81c/FLAG4d205491b [2023-11-19 04:07:25,561 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/data/7a30f0618/edf517ef9ab04c4fa5ef47eb366cf81c [2023-11-19 04:07:25,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 04:07:25,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 04:07:25,567 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:25,567 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 04:07:25,573 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 04:07:25,574 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:25,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cc911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25, skipping insertion in model container [2023-11-19 04:07:25,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:25,604 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 04:07:25,830 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_c4241d11-f12d-448b-baae-e1c828a1ece3/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-11-19 04:07:25,835 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:25,858 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 04:07:25,915 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_c4241d11-f12d-448b-baae-e1c828a1ece3/sv-benchmarks/c/float-newlib/float_req_bl_1252b.c[1936,1949] [2023-11-19 04:07:25,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 04:07:25,940 INFO L206 MainTranslator]: Completed translation [2023-11-19 04:07:25,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25 WrapperNode [2023-11-19 04:07:25,941 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 04:07:25,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:25,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 04:07:25,943 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 04:07:25,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:25,981 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,017 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2023-11-19 04:07:26,018 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 04:07:26,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 04:07:26,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 04:07:26,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 04:07:26,052 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,053 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,060 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,080 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,106 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,115 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,120 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 04:07:26,121 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 04:07:26,121 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 04:07:26,121 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 04:07:26,122 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:07:25" (1/1) ... [2023-11-19 04:07:26,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 04:07:26,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 04:07:26,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 04:07:26,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 04:07:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 04:07:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 04:07:26,245 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 04:07:26,246 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-19 04:07:26,246 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-19 04:07:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 04:07:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 04:07:26,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 04:07:26,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 04:07:26,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 04:07:26,399 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 04:07:26,402 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 04:07:26,686 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 04:07:26,811 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 04:07:26,811 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-19 04:07:26,821 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:26 BoogieIcfgContainer [2023-11-19 04:07:26,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 04:07:26,824 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 04:07:26,824 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 04:07:26,835 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 04:07:26,836 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:07:26" (1/1) ... [2023-11-19 04:07:26,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 04:07:26,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:26,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 20 states and 27 transitions. [2023-11-19 04:07:26,921 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 27 transitions. [2023-11-19 04:07:26,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 04:07:26,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:26,931 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:26,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:07:26,933 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:07:26,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 04:07:27,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:27,087 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:07:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:27,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:07:27,153 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:07:27,191 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 04:07:27,196 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:07:27,207 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 04:07:27,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:27,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 20 states and 24 transitions. [2023-11-19 04:07:27,255 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-19 04:07:27,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 04:07:27,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:27,256 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:27,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:07:27,259 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:07:27,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 04:07:27,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:27,470 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:07:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:27,504 INFO L262 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 04:07:27,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:07:27,577 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 04:07:27,579 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:07:27,585 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 04:07:27,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 22 states and 27 transitions. [2023-11-19 04:07:27,693 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2023-11-19 04:07:27,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-19 04:07:27,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:27,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:27,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:07:27,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:07:27,713 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 04:07:27,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:27,825 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:07:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:27,851 INFO L262 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 04:07:27,852 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:07:27,855 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 04:07:27,858 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:07:27,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 04:07:27,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:27,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 22 states and 25 transitions. [2023-11-19 04:07:27,879 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2023-11-19 04:07:27,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-19 04:07:27,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:27,881 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:27,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:07:27,885 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:07:27,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 04:07:28,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:28,179 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:07:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:28,219 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 04:07:28,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:07:28,335 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-19 04:07:28,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2023-11-19 04:07:29,805 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 04:07:29,814 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 04:07:30,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:30,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 22 states and 24 transitions. [2023-11-19 04:07:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-19 04:07:30,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 04:07:30,861 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:30,861 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:30,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:07:30,862 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:07:30,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 04:07:31,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:31,170 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 04:07:31,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 04:07:31,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-19 04:07:31,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 04:07:31,236 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:07:31,238 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-19 04:07:32,205 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 04:07:32,206 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-19 04:07:33,065 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 04:07:33,069 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 04:07:33,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 04:07:33,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 04:07:33,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 20 states and 20 transitions. [2023-11-19 04:07:33,465 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-11-19 04:07:33,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 04:07:33,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 04:07:33,466 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 04:07:33,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 04:07:33,473 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 04:07:33,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c4241d11-f12d-448b-baae-e1c828a1ece3/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 04:07:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 04:07:33,891 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 04:07:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat