./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.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_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/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_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/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_dc799bcd-cc0d-4e0e-b863-832a3130f272/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 0dbc3d3ff6cb08180d0b4fd8249bfbf63ea42ccbd4e64aeded56843f545153c4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:00:30,923 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:00:31,053 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:00:31,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:00:31,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:00:31,106 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:00:31,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:00:31,109 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:00:31,110 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:00:31,116 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:00:31,118 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:00:31,119 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:00:31,119 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:00:31,121 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:00:31,122 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:00:31,123 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:00:31,123 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:00:31,124 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:00:31,124 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:00:31,125 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:00:31,125 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:00:31,126 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:00:31,127 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:00:31,127 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:00:31,128 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:00:31,129 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:00:31,130 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:00:31,131 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:00:31,131 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:00:31,132 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:00:31,166 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:00:31,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:00:31,167 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:00:31,168 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_dc799bcd-cc0d-4e0e-b863-832a3130f272/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dbc3d3ff6cb08180d0b4fd8249bfbf63ea42ccbd4e64aeded56843f545153c4 [2023-11-19 03:00:31,487 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:00:31,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:00:31,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:00:31,522 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:00:31,523 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:00:31,524 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2023-11-19 03:00:34,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:00:34,874 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:00:34,875 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2023-11-19 03:00:34,886 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data/65fcc6ce2/7239443b1a16439bba98e18884ec79a4/FLAG2a24f0eb7 [2023-11-19 03:00:34,910 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data/65fcc6ce2/7239443b1a16439bba98e18884ec79a4 [2023-11-19 03:00:34,917 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:00:34,919 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:00:34,924 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:34,924 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:00:34,930 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:00:34,931 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:34" (1/1) ... [2023-11-19 03:00:34,934 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23768230 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:34, skipping insertion in model container [2023-11-19 03:00:34,934 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:34" (1/1) ... [2023-11-19 03:00:34,971 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:00:35,181 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_dc799bcd-cc0d-4e0e-b863-832a3130f272/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2023-11-19 03:00:35,186 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:35,196 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:00:35,227 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_dc799bcd-cc0d-4e0e-b863-832a3130f272/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2023-11-19 03:00:35,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:35,242 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:00:35,243 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35 WrapperNode [2023-11-19 03:00:35,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:35,244 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:35,244 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:00:35,244 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:00:35,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,258 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,283 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 154 [2023-11-19 03:00:35,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:35,284 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:00:35,284 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:00:35,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:00:35,294 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,294 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,298 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,312 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,315 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,316 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:00:35,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:00:35,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:00:35,321 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:00:35,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:35" (1/1) ... [2023-11-19 03:00:35,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:00:35,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:00:35,365 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:00:35,406 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:00:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:00:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:00:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:00:35,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-19 03:00:35,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-19 03:00:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 03:00:35,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:00:35,435 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:00:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:00:35,435 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:00:35,535 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:00:35,538 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:00:35,783 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:00:36,004 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:00:36,004 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 03:00:36,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:36 BoogieIcfgContainer [2023-11-19 03:00:36,009 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:00:36,010 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:00:36,011 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:00:36,019 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:00:36,019 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:36" (1/1) ... [2023-11-19 03:00:36,027 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:00:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 26 states and 40 transitions. [2023-11-19 03:00:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 40 transitions. [2023-11-19 03:00:36,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:00:36,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:36,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:36,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:36,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:36,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:36,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 26 states and 37 transitions. [2023-11-19 03:00:36,268 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 37 transitions. [2023-11-19 03:00:36,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:00:36,269 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:36,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:00:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:36,315 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:00:36,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:36,449 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:00:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:00:36,479 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 2 iterations. [2023-11-19 03:00:36,504 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-19 03:00:36,510 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:00:36 ImpRootNode [2023-11-19 03:00:36,510 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:00:36,511 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:00:36,511 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:00:36,511 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:00:36,512 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:36" (3/4) ... [2023-11-19 03:00:36,514 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:00:36,515 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:00:36,516 INFO L158 Benchmark]: Toolchain (without parser) took 1597.37ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 124.8MB in the beginning and 200.4MB in the end (delta: -75.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:00:36,517 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 167.8MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:00:36,518 INFO L158 Benchmark]: CACSL2BoogieTranslator took 319.22ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 112.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:00:36,518 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.20ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 110.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:00:36,519 INFO L158 Benchmark]: Boogie Preprocessor took 35.86ms. Allocated memory is still 167.8MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:00:36,520 INFO L158 Benchmark]: RCFGBuilder took 689.12ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 83.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2023-11-19 03:00:36,520 INFO L158 Benchmark]: CodeCheck took 499.94ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 83.8MB in the beginning and 201.5MB in the end (delta: -117.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:00:36,521 INFO L158 Benchmark]: Witness Printer took 4.54ms. Allocated memory is still 237.0MB. Free memory was 201.5MB in the beginning and 200.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:00:36,525 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 25 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 14 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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: 108]: 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 107, overapproximation of someBinaryArithmeticFLOAToperation at line 29. Possible FailurePath: [L14] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L103] float x = 0.0f; [L104] CALL, EXPR __ieee754_sqrtf(x) [L17] float z; [L18] __uint32_t r, hx; [L19] __int32_t ix, s, q, m, t, i; VAL [\old(x)=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L22] ieee_float_shape_type gf_u; [L23] EXPR gf_u.value = (x) [L24] EXPR gf_u.word [L24] EXPR (ix) = gf_u.word [L21-L25] { ieee_float_shape_type gf_u; gf_u.value = (x); (ix) = gf_u.word; } VAL [\old(x)=0, ix=2139095040, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L26] hx = ix & 0x7fffffff VAL [\old(x)=0, hx=2139095040, ix=2139095040, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L28] COND TRUE !((hx) < 0x7f800000L) [L29] return x * x + x; VAL [\old(x)=0, hx=2139095040, ix=2139095040, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L104] RET, EXPR __ieee754_sqrtf(x) [L104] float res = __ieee754_sqrtf(x); [L107] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, res=4, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L107] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L108] reach_error() VAL [one_sqrt=1, res=4, tiny_sqrt=1/1000000000000000000000000000000, x=0] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 167.8MB. Free memory is still 137.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 319.22ms. Allocated memory is still 167.8MB. Free memory was 124.2MB in the beginning and 112.7MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.20ms. Allocated memory is still 167.8MB. Free memory was 112.7MB in the beginning and 110.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.86ms. Allocated memory is still 167.8MB. Free memory was 110.6MB in the beginning and 109.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 689.12ms. Allocated memory is still 167.8MB. Free memory was 109.0MB in the beginning and 83.8MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * CodeCheck took 499.94ms. Allocated memory was 167.8MB in the beginning and 237.0MB in the end (delta: 69.2MB). Free memory was 83.8MB in the beginning and 201.5MB in the end (delta: -117.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.54ms. Allocated memory is still 237.0MB. Free memory was 201.5MB in the beginning and 200.4MB in the end (delta: 1.1MB). 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~short12 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 03:00:36,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/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_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/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_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/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_dc799bcd-cc0d-4e0e-b863-832a3130f272/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 0dbc3d3ff6cb08180d0b4fd8249bfbf63ea42ccbd4e64aeded56843f545153c4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:00:39,196 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:00:39,339 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:00:39,390 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:00:39,391 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:00:39,392 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:00:39,393 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:00:39,394 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:00:39,395 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:00:39,400 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:00:39,401 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:00:39,401 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:00:39,402 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:00:39,404 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:00:39,404 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:00:39,405 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:00:39,405 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:00:39,405 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:00:39,406 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:00:39,407 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:00:39,408 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:00:39,408 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:00:39,409 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:00:39,409 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:00:39,410 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:00:39,410 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:39,410 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:00:39,411 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:00:39,411 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:00:39,412 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:00:39,413 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:00:39,414 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:00:39,414 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:00:39,414 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:39,415 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:00:39,415 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:00:39,415 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:00:39,415 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_dc799bcd-cc0d-4e0e-b863-832a3130f272/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0dbc3d3ff6cb08180d0b4fd8249bfbf63ea42ccbd4e64aeded56843f545153c4 [2023-11-19 03:00:39,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:00:39,863 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:00:39,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:00:39,867 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:00:39,868 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:00:39,870 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2023-11-19 03:00:43,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:00:43,380 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:00:43,381 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2023-11-19 03:00:43,390 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data/72e4bfe57/14315a95e8444a86aacab3d8212a81cc/FLAG7420f5395 [2023-11-19 03:00:43,406 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/data/72e4bfe57/14315a95e8444a86aacab3d8212a81cc [2023-11-19 03:00:43,409 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:00:43,411 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:00:43,413 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:43,413 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:00:43,418 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:00:43,419 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,420 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b40ab8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43, skipping insertion in model container [2023-11-19 03:00:43,421 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,448 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:00:43,709 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_dc799bcd-cc0d-4e0e-b863-832a3130f272/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2023-11-19 03:00:43,721 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:43,742 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:00:43,805 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_dc799bcd-cc0d-4e0e-b863-832a3130f272/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c[2069,2082] [2023-11-19 03:00:43,811 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:00:43,833 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:00:43,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43 WrapperNode [2023-11-19 03:00:43,833 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:00:43,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:43,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:00:43,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:00:43,842 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,868 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,909 INFO L138 Inliner]: procedures = 20, calls = 21, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 133 [2023-11-19 03:00:43,911 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:00:43,912 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:00:43,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:00:43,913 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:00:43,925 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,926 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,943 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,974 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,979 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,990 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:43,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:44,001 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:00:44,005 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:00:44,005 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:00:44,006 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:00:44,006 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:00:43" (1/1) ... [2023-11-19 03:00:44,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:00:44,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:00:44,043 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:00:44,080 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:00:44,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:00:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2023-11-19 03:00:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 03:00:44,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:00:44,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:00:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 03:00:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-19 03:00:44,094 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:00:44,239 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:00:44,241 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:00:45,275 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:00:45,435 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:00:45,447 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-19 03:00:45,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:45 BoogieIcfgContainer [2023-11-19 03:00:45,455 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:00:45,456 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:00:45,457 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:00:45,469 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:00:45,469 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:00:45" (1/1) ... [2023-11-19 03:00:45,482 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:00:45,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:45,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 24 states and 37 transitions. [2023-11-19 03:00:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 37 transitions. [2023-11-19 03:00:45,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-19 03:00:45,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:45,566 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:45,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:45,569 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:45,578 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:00:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:45,772 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:45,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:00:45,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:45,828 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:00:45,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2023-11-19 03:00:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:45,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 24 states and 34 transitions. [2023-11-19 03:00:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 34 transitions. [2023-11-19 03:00:45,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-19 03:00:45,867 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:45,867 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:45,867 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:45,868 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:45,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:00:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:46,169 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:46,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:46,266 INFO L262 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:00:46,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:46,423 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 03:00:46,436 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 03:00:46,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:46,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:00:47,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:47,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 24 states and 33 transitions. [2023-11-19 03:00:47,381 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 33 transitions. [2023-11-19 03:00:47,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-19 03:00:47,381 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:47,382 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:47,382 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:47,383 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:47,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 03:00:47,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:47,630 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:47,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:47,661 INFO L262 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:00:47,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:47,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:47,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-11-19 03:00:50,453 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-19 03:00:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:51,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 26 states and 36 transitions. [2023-11-19 03:00:51,277 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 36 transitions. [2023-11-19 03:00:51,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-11-19 03:00:51,278 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:51,278 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:51,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:51,280 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:51,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 03:00:51,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:51,703 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:51,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:51,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:00:51,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:51,820 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-11-19 03:00:51,822 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2023-11-19 03:00:51,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:51,872 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:00:51,873 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 03:00:52,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:52,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 26 states and 35 transitions. [2023-11-19 03:00:52,975 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 35 transitions. [2023-11-19 03:00:52,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-19 03:00:52,976 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:52,976 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:52,976 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:52,977 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:52,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 03:00:53,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:53,121 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:53,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:53,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:00:53,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:53,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:53,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-19 03:00:53,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:53,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 26 states and 33 transitions. [2023-11-19 03:00:53,170 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 33 transitions. [2023-11-19 03:00:53,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-19 03:00:53,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:53,172 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:53,172 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:53,174 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:53,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 03:00:53,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:53,497 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:53,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:53,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 03:00:53,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:53,830 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 03:00:53,838 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 03:00:54,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:54,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 03:00:55,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:55,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 31 states and 38 transitions. [2023-11-19 03:00:55,015 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2023-11-19 03:00:55,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-19 03:00:55,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:55,016 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:55,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:55,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:55,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 03:00:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:55,184 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:55,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:55,227 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:00:55,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:55,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-11-19 03:00:55,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:55,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 31 states and 36 transitions. [2023-11-19 03:00:55,388 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2023-11-19 03:00:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-19 03:00:55,389 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:55,389 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:55,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:55,396 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:55,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 03:00:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:55,608 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:55,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:00:55,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:55,807 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:55,818 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 03:00:56,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:56,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 32 states and 38 transitions. [2023-11-19 03:00:56,070 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2023-11-19 03:00:56,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-19 03:00:56,071 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:56,071 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:56,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:56,073 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:56,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 03:00:56,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:56,250 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:56,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:56,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:00:56,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:56,455 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:56,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-11-19 03:00:56,461 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:00:57,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:57,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 33 states and 40 transitions. [2023-11-19 03:00:57,048 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 40 transitions. [2023-11-19 03:00:57,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-19 03:00:57,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:57,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:57,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:57,053 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:57,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 03:00:57,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:57,280 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:57,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-19 03:00:57,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:57,505 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:57,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 03:00:57,509 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:00:58,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:58,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 34 states and 42 transitions. [2023-11-19 03:00:58,248 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2023-11-19 03:00:58,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-19 03:00:58,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:58,249 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:58,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:58,252 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:58,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 03:00:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:58,449 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:58,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-19 03:00:58,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:58,654 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:58,661 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:00:58,661 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-19 03:00:59,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:00:59,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 35 states and 44 transitions. [2023-11-19 03:00:59,266 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 44 transitions. [2023-11-19 03:00:59,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-19 03:00:59,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:00:59,268 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:00:59,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:00:59,276 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:00:59,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 03:00:59,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:59,484 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:00:59,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:00:59,545 INFO L262 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-19 03:00:59,547 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:00:59,752 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:00:59,759 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:00,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:00,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 36 states and 46 transitions. [2023-11-19 03:01:00,460 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2023-11-19 03:01:00,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-19 03:01:00,461 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:00,461 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:00,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:00,463 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:00,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-19 03:01:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:00,692 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:00,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-19 03:01:00,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:00,982 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:00,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:01,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 37 states and 48 transitions. [2023-11-19 03:01:01,688 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2023-11-19 03:01:01,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:01:01,689 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:01,689 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:01,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:01,700 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:01,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-19 03:01:01,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:01,931 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:01,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:02,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-19 03:01:02,005 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:02,231 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:02,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-11-19 03:01:03,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:03,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 38 states and 50 transitions. [2023-11-19 03:01:03,196 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 50 transitions. [2023-11-19 03:01:03,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:01:03,197 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:03,197 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:03,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:03,202 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:03,228 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 03:01:03,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:03,448 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:03,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-19 03:01:03,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:03,762 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:03,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:04,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:04,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 39 states and 52 transitions. [2023-11-19 03:01:04,495 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 52 transitions. [2023-11-19 03:01:04,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-11-19 03:01:04,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:04,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:04,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:04,504 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:04,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-19 03:01:04,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:04,747 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:04,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:04,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-19 03:01:04,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:05,065 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:05,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:05,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:05,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 40 states and 54 transitions. [2023-11-19 03:01:05,936 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 54 transitions. [2023-11-19 03:01:05,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-19 03:01:05,937 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:05,937 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:05,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:05,944 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:05,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-19 03:01:06,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:06,174 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:06,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-19 03:01:06,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:06,549 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:06,561 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:07,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:07,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 41 states and 56 transitions. [2023-11-19 03:01:07,360 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2023-11-19 03:01:07,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-19 03:01:07,361 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:07,361 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:07,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:07,372 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:07,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-19 03:01:07,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:07,611 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:07,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:07,691 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-19 03:01:07,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:07,966 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:07,974 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:08,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:08,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 42 states and 58 transitions. [2023-11-19 03:01:08,947 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 58 transitions. [2023-11-19 03:01:08,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:01:08,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:08,948 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:08,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:08,950 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:08,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-19 03:01:09,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:09,152 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:09,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:09,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-19 03:01:09,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:09,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:09,460 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (20)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:01:10,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:10,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 43 states and 60 transitions. [2023-11-19 03:01:10,354 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2023-11-19 03:01:10,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:01:10,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:10,355 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:10,355 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:10,356 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:10,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-19 03:01:10,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:10,573 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:10,645 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-19 03:01:10,646 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:10,909 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:10,912 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (21)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:01:10,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:11,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:11,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 44 states and 62 transitions. [2023-11-19 03:01:11,893 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 62 transitions. [2023-11-19 03:01:11,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-11-19 03:01:11,894 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:11,894 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:11,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:11,896 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:11,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-19 03:01:12,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:12,170 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:12,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:12,264 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 15 conjunts are in the unsatisfiable core [2023-11-19 03:01:12,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:12,544 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:12,547 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (22)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:01:12,549 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:13,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:13,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 45 states and 64 transitions. [2023-11-19 03:01:13,439 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2023-11-19 03:01:13,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-19 03:01:13,439 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:13,439 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:13,440 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:13,441 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:13,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-19 03:01:13,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:13,668 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:13,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:13,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-19 03:01:13,775 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:14,122 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:14,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:15,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:15,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 46 states and 66 transitions. [2023-11-19 03:01:15,145 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 66 transitions. [2023-11-19 03:01:15,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:01:15,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:15,146 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:15,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:15,152 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:15,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-19 03:01:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:15,443 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:15,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:15,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:01:15,532 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:15,836 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:15,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:16,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 47 states and 68 transitions. [2023-11-19 03:01:16,846 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2023-11-19 03:01:16,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:01:16,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:16,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:16,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:16,851 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:16,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-19 03:01:17,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:17,097 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:17,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:17,208 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:01:17,210 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:17,512 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:17,515 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:01:17,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-11-19 03:01:18,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:18,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 48 states and 70 transitions. [2023-11-19 03:01:18,631 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 70 transitions. [2023-11-19 03:01:18,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-11-19 03:01:18,632 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:18,632 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:18,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:18,634 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:18,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-19 03:01:18,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:18,884 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:18,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:18,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-19 03:01:18,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:19,319 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:19,324 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:19,324 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (26)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:01:20,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:20,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 49 states and 72 transitions. [2023-11-19 03:01:20,402 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 72 transitions. [2023-11-19 03:01:20,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-11-19 03:01:20,403 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:20,403 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:20,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:20,407 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:20,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-19 03:01:20,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:20,654 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:20,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:20,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-19 03:01:20,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:21,061 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:21,063 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (27)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:01:21,064 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:22,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:22,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 50 states and 74 transitions. [2023-11-19 03:01:22,375 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 74 transitions. [2023-11-19 03:01:22,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-11-19 03:01:22,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:22,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:22,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:22,377 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:22,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-11-19 03:01:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:22,643 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:22,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 21 conjunts are in the unsatisfiable core [2023-11-19 03:01:22,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:23,104 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:23,108 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (28)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:01:23,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:24,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:24,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 51 states and 76 transitions. [2023-11-19 03:01:24,543 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 76 transitions. [2023-11-19 03:01:24,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-11-19 03:01:24,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:24,544 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:24,544 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:24,545 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:24,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-19 03:01:24,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:24,861 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:01:24,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:24,961 INFO L262 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 22 conjunts are in the unsatisfiable core [2023-11-19 03:01:24,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:01:25,429 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:01:25,437 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2023-11-19 03:01:26,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:01:26,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 52 states and 78 transitions. [2023-11-19 03:01:26,923 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2023-11-19 03:01:26,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-19 03:01:26,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:01:26,924 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:01:26,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:01:26,929 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:01:26,932 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc799bcd-cc0d-4e0e-b863-832a3130f272/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-11-19 03:01:27,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:01:27,221 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported