./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:10:44,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:10:44,261 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:10:44,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:10:44,267 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:10:44,295 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:10:44,296 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:10:44,297 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:10:44,298 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:10:44,298 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:10:44,299 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:10:44,300 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:10:44,300 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:10:44,301 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:10:44,301 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:10:44,302 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:10:44,302 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:10:44,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:10:44,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:10:44,304 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:10:44,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:10:44,305 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:10:44,305 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:10:44,306 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:10:44,306 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:10:44,307 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:10:44,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:44,307 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:10:44,308 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:10:44,308 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:10:44,309 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:10:44,309 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:10:44,309 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:10:44,310 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2023-11-24 22:10:44,545 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:10:44,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:10:44,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:10:44,586 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:10:44,586 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:10:44,588 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-24 22:10:47,771 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:10:48,015 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:10:48,016 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-24 22:10:48,028 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data/0e59a1d42/a3303ae481a64a098ceaa1adf7abd888/FLAG22bd5c2fc [2023-11-24 22:10:48,045 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data/0e59a1d42/a3303ae481a64a098ceaa1adf7abd888 [2023-11-24 22:10:48,048 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:10:48,050 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:10:48,053 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:48,053 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:10:48,061 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:10:48,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,067 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@408c0fcb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48, skipping insertion in model container [2023-11-24 22:10:48,067 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,097 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:10:48,284 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-24 22:10:48,289 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-24 22:10:48,290 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:48,302 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:10:48,328 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-24 22:10:48,329 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-24 22:10:48,331 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:48,352 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:10:48,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48 WrapperNode [2023-11-24 22:10:48,352 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:48,354 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:48,354 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:10:48,354 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:10:48,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,395 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-24 22:10:48,395 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:48,396 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:10:48,396 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:10:48,396 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:10:48,407 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,407 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,410 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,410 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,422 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,424 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,425 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,428 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:10:48,429 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:10:48,429 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:10:48,430 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:10:48,430 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:48" (1/1) ... [2023-11-24 22:10:48,437 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:48,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:10:48,473 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:10:48,485 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:10:48,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:10:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:10:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:10:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-24 22:10:48,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-24 22:10:48,510 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-24 22:10:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-24 22:10:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:10:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:10:48,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:10:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:10:48,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:10:48,590 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:10:48,593 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:10:48,889 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:10:49,052 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:10:49,052 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:10:49,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:49 BoogieIcfgContainer [2023-11-24 22:10:49,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:10:49,056 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:10:49,065 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:10:49,076 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:10:49,077 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:49" (1/1) ... [2023-11-24 22:10:49,085 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:10:49,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 47 states and 65 transitions. [2023-11-24 22:10:49,141 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2023-11-24 22:10:49,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:10:49,147 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:49,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:10:49,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:49,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:10:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 49 states and 64 transitions. [2023-11-24 22:10:49,792 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2023-11-24 22:10:49,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 22:10:49,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:49,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:10:49,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:49,981 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:10:50,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:50,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2023-11-24 22:10:50,011 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-24 22:10:50,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:10:50,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:50,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:10:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:50,072 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:10:50,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:50,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:50,215 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:10:50,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:10:50,265 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-24 22:10:50,304 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-24 22:10:50,305 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-24 22:10:50,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-24 22:10:50,306 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-24 22:10:50,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:10:50,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-24 22:10:50,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-24 22:10:50,307 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:10:50,308 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-24 22:10:50,309 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-24 22:10:50,309 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-24 22:10:50,309 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:10:50,310 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-24 22:10:50,312 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-24 22:10:50,313 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-24 22:10:50,313 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-24 22:10:50,313 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-24 22:10:50,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-24 22:10:50,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-24 22:10:50,314 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-24 22:10:50,315 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-24 22:10:50,315 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-24 22:10:50,315 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-24 22:10:50,324 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:10:50 ImpRootNode [2023-11-24 22:10:50,324 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:10:50,326 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:10:50,326 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:10:50,326 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:10:50,327 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:49" (3/4) ... [2023-11-24 22:10:50,331 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:10:50,332 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:10:50,335 INFO L158 Benchmark]: Toolchain (without parser) took 2284.41ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 113.8MB in the beginning and 152.6MB in the end (delta: -38.8MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2023-11-24 22:10:50,336 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:10:50,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 300.31ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 102.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-24 22:10:50,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.61ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 100.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:50,339 INFO L158 Benchmark]: Boogie Preprocessor took 32.35ms. Allocated memory is still 159.4MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:50,339 INFO L158 Benchmark]: RCFGBuilder took 625.51ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 78.1MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-24 22:10:50,345 INFO L158 Benchmark]: CodeCheck took 1268.46ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 78.1MB in the beginning and 153.6MB in the end (delta: -75.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:10:50,347 INFO L158 Benchmark]: Witness Printer took 7.63ms. Allocated memory is still 216.0MB. Free memory was 153.6MB in the beginning and 152.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:10:50,356 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 3 procedures, 47 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 80 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 8/8 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: 76]: 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 75. Possible FailurePath: [L66] float x = __VERIFIER_nondet_float(); [L67] float y = __VERIFIER_nondet_float(); [L69] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L57] return x != x; [L69] RET, EXPR isnan_float(x) VAL [x=2] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2] [L69] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L57] return x != x; [L69] RET, EXPR isnan_float(y) VAL [x=2, y=3] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2, y=3] [L69-L70] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) VAL [x=2, y=3] [L69-L70] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L72] CALL, EXPR fmax_float(x, y) [L46] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2] [L23] __uint32_t w; VAL [\old(x)=2, x=2] [L26] ieee_float_shape_type gf_u; [L27] EXPR gf_u.value = (x) [L28] EXPR gf_u.word [L28] EXPR (w) = gf_u.word [L25-L29] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=2, w=2139095041, x=2] [L31] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L33-L34] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L36-L37] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L39] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L42] return 0; [L46] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2, \old(y)=3, x=2, y=3] [L46] COND TRUE __fpclassify_float(x) == 0 [L47] return y; VAL [\old(x)=2, \old(y)=3, \result=3, x=2, y=3] [L72] RET, EXPR fmax_float(x, y) [L72] float res = fmax_float(x, y); [L75] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L57] return x != x; [L75] RET, EXPR isnan_float(x) VAL [res=3, x=2, y=3] [L75] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L75] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L57] return x != x; [L75] RET, EXPR isnan_float(y) VAL [res=3, x=2, y=3] [L75] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L75] COND TRUE isnan_float(x) && !isnan_float(y) && res != y [L76] reach_error() VAL [res=3, x=2, y=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 159.4MB. Free memory is still 104.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 300.31ms. Allocated memory is still 159.4MB. Free memory was 113.3MB in the beginning and 102.0MB in the end (delta: 11.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.61ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 100.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.35ms. Allocated memory is still 159.4MB. Free memory was 100.2MB in the beginning and 98.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 625.51ms. Allocated memory is still 159.4MB. Free memory was 98.6MB in the beginning and 78.1MB in the end (delta: 20.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * CodeCheck took 1268.46ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 78.1MB in the beginning and 153.6MB in the end (delta: -75.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.63ms. Allocated memory is still 216.0MB. Free memory was 153.6MB in the beginning and 152.6MB 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~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 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 [2023-11-24 22:10:50,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:10:53,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:10:53,219 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:10:53,250 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:10:53,251 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:10:53,252 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:10:53,253 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:10:53,254 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:10:53,254 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:10:53,255 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:10:53,256 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:10:53,256 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:10:53,257 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:10:53,258 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:10:53,258 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:10:53,259 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:10:53,260 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:10:53,260 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:10:53,261 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:10:53,262 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:10:53,262 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:10:53,263 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:10:53,264 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:10:53,264 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:10:53,265 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:10:53,266 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:53,266 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:10:53,267 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:10:53,267 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:53,268 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:10:53,269 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:10:53,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:10:53,272 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:10:53,273 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:53,273 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:10:53,273 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:10:53,274 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:10:53,274 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2023-11-24 22:10:53,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:10:53,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:10:53,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:10:53,747 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:10:53,747 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:10:53,749 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-24 22:10:57,215 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:10:57,530 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:10:57,532 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-24 22:10:57,540 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data/eaa294678/a42a2de14391488cb8d6427f3917f766/FLAGb26ac3b96 [2023-11-24 22:10:57,552 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/data/eaa294678/a42a2de14391488cb8d6427f3917f766 [2023-11-24 22:10:57,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:10:57,556 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:10:57,558 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:57,558 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:10:57,564 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:10:57,565 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,566 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bdb57b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57, skipping insertion in model container [2023-11-24 22:10:57,566 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,591 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:10:57,813 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-24 22:10:57,818 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-24 22:10:57,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:57,841 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:10:57,862 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-24 22:10:57,863 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_fb2ac52c-2740-4c23-85cf-3466ebea09c0/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-24 22:10:57,865 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:10:57,884 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:10:57,885 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57 WrapperNode [2023-11-24 22:10:57,885 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:10:57,886 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:57,886 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:10:57,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:10:57,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,906 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,931 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2023-11-24 22:10:57,932 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:10:57,933 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:10:57,933 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:10:57,933 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:10:57,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,949 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,949 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,961 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,976 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,979 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,981 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,985 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:10:57,986 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:10:57,986 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:10:57,987 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:10:57,988 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:10:57" (1/1) ... [2023-11-24 22:10:57,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:10:58,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:10:58,023 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:10:58,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:10:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:10:58,068 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:10:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:10:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-24 22:10:58,069 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-24 22:10:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-24 22:10:58,069 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-24 22:10:58,069 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:10:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:10:58,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:10:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 22:10:58,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:10:58,155 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:10:58,158 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:10:58,504 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:10:58,640 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:10:58,640 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:10:58,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:58 BoogieIcfgContainer [2023-11-24 22:10:58,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:10:58,643 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:10:58,643 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:10:58,653 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:10:58,653 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:10:58" (1/1) ... [2023-11-24 22:10:58,665 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:10:58,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 64 transitions. [2023-11-24 22:10:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-24 22:10:58,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:10:58,735 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:58,736 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:58,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:10:58,739 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:10:58,761 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:10:58,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:58,989 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:10:59,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:59,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:10:59,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:10:59,053 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:10:59,056 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:10:59,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:10:59,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:59,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2023-11-24 22:10:59,134 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-11-24 22:10:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:10:59,137 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:59,137 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:59,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:10:59,138 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:10:59,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:10:59,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:59,332 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:10:59,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:59,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:10:59,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:10:59,385 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:10:59,387 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:10:59,388 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:10:59,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:59,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 47 states and 63 transitions. [2023-11-24 22:10:59,414 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-24 22:10:59,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 22:10:59,415 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:59,416 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:59,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:10:59,417 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:10:59,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:10:59,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:59,587 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:10:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:10:59,619 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:10:59,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:10:59,656 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:10:59,659 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:10:59,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:10:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:10:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 65 transitions. [2023-11-24 22:10:59,756 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-24 22:10:59,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:10:59,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:10:59,758 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:10:59,758 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:10:59,761 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:10:59,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 22:11:00,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:00,055 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:00,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 22:11:00,113 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:00,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:00,866 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:00,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-24 22:11:02,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:02,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 62 states and 89 transitions. [2023-11-24 22:11:02,167 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 89 transitions. [2023-11-24 22:11:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:02,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:02,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:02,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:02,177 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:02,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 22:11:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:02,440 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:02,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:02,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:03,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:03,104 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:04,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:04,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:04,734 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:04,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:04,736 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:04,736 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:04,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:04,741 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:04,749 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 22:11:05,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:05,011 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:05,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:05,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:05,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:05,307 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:05,312 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:05,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:05,345 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:05,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:05,348 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:05,348 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:05,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:05,350 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:05,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 22:11:05,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:05,663 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:05,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:05,717 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:05,720 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:05,982 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:05,986 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:06,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:06,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:06,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:06,020 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:06,020 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:06,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:06,022 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:06,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 22:11:06,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:06,338 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:06,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:06,383 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:06,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:06,522 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:06,525 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:06,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:06,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:06,548 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:06,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:06,549 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:06,549 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:06,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:06,558 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:06,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-24 22:11:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:06,865 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:06,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:06,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:06,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:07,070 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:07,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:07,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:07,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:07,094 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:07,097 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:07,097 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:07,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:07,101 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:07,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-24 22:11:07,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:07,361 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:07,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:07,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:07,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:07,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:07,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:07,614 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:07,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:07,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:07,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:07,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:07,618 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:07,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-24 22:11:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:07,875 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:07,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:07,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:07,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:08,087 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:08,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:08,104 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:08,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:08,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:08,105 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:08,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:08,107 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:08,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-24 22:11:08,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:08,409 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:08,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:08,469 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:08,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:08,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:08,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:08,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:08,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:08,644 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:08,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:08,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:08,645 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:08,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:08,646 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:08,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-24 22:11:08,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:08,943 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:08,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:08,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:08,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:09,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:09,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:09,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:09,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:09,137 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:09,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:09,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:09,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:09,139 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:09,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-24 22:11:09,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:09,423 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:09,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:09,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:09,465 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:09,610 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:09,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:09,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:09,642 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:09,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:09,642 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:09,643 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:09,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:09,644 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:09,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-24 22:11:09,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:09,946 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:09,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:09,979 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:09,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:10,277 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:10,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:10,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:10,379 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:10,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:10,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:10,380 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:10,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:10,382 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:10,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-24 22:11:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:10,643 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:10,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:10,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:10,888 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:10,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:10,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:10,905 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:10,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:10,907 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:10,912 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:10,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:10,916 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:10,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-24 22:11:11,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:11,190 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:11,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:11,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:11,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:11,350 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:11,354 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:11,355 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:11,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:11,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:11,371 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:11,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:11,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:11,373 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:11,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:11,374 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:11,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-24 22:11:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:11,685 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:11,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:11,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:11,849 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:11,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:11,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:11,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:11,871 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:11,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:11,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:11,873 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:11,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:11,874 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:11,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-24 22:11:12,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:12,118 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:12,150 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:12,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:12,278 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:12,284 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-11-24 22:11:12,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:12,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:12,295 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:12,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:12,296 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:12,296 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:12,296 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:12,297 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:12,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-24 22:11:12,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:12,599 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:12,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:11:12,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:12,841 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:12,844 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:12,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:12,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:12,856 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:12,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:12,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:12,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:12,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:12,858 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:12,880 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-24 22:11:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:13,167 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:13,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:13,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:13,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:13,476 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:13,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:13,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:13,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:13,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:13,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:13,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:13,487 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:13,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-24 22:11:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:13,742 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:13,782 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:13,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:13,980 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:13,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:13,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:13,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:13,994 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:13,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:13,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:13,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:13,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:13,997 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:14,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-24 22:11:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:14,312 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:14,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:14,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:14,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:14,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:14,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:14,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:14,584 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:14,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:14,586 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:14,586 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:14,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:14,587 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:14,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-24 22:11:14,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:14,831 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:14,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 22:11:14,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:15,069 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:15,073 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:15,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:15,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:15,085 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:15,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:15,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:15,086 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:15,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:15,088 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:15,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-24 22:11:15,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:15,400 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:15,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:15,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:15,563 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:15,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:15,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:15,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:15,576 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:15,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:15,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:15,577 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:15,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:15,578 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:15,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-24 22:11:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:15,814 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:15,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:15,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:15,869 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:15,986 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:15,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:16,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:16,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:16,008 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:16,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:16,010 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:16,010 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:16,011 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:16,012 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:16,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-11-24 22:11:16,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:16,248 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:16,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:16,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:16,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:16,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:16,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:16,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:16,453 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:16,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:16,454 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:16,454 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:16,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:16,456 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:16,459 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-24 22:11:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:16,708 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:16,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:16,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:16,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:16,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:16,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:16,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:16,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:16,985 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:16,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:16,986 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:16,986 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:16,986 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:16,987 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:17,012 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-11-24 22:11:17,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:17,252 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:17,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:17,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:17,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:17,416 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:17,420 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:17,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:17,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:17,430 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:17,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:17,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:17,431 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:17,431 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:17,432 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:17,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-24 22:11:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:17,719 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:17,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:17,770 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:17,771 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:17,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:17,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:17,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:17,936 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:17,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:17,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:17,940 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:17,941 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:17,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-11-24 22:11:18,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:18,190 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:18,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:18,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:18,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:18,426 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:18,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:18,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:18,438 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:18,438 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:18,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:18,439 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:18,440 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:18,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-11-24 22:11:18,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:18,700 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:18,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:18,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:18,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:18,871 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:18,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:18,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:18,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:18,886 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:18,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:18,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:18,889 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:18,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:18,891 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:18,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-11-24 22:11:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:19,210 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:19,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:19,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:19,374 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:19,380 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:19,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:19,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:19,390 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:19,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:19,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:19,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:19,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:19,392 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:19,412 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-11-24 22:11:19,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:19,716 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:19,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:19,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:19,922 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:19,924 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-11-24 22:11:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:19,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:19,934 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:19,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:19,934 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:19,935 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:19,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:19,936 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:19,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-11-24 22:11:20,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:20,189 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:20,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:20,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:20,389 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:20,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-11-24 22:11:20,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:20,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:20,399 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:20,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:20,400 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:20,400 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:20,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:20,402 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:20,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-11-24 22:11:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:20,653 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:20,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:20,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:20,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:20,868 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:20,871 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-11-24 22:11:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:20,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:20,882 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:20,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:20,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:20,883 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:20,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:20,884 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:20,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-11-24 22:11:21,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:21,145 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:21,180 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:21,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:21,275 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:21,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:21,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:21,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:21,286 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:21,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:21,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:21,287 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:21,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:21,288 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:21,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-11-24 22:11:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:21,531 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:21,559 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:21,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:21,778 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:21,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:21,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:21,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:21,795 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:21,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:21,796 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:21,796 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:21,796 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:21,800 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:21,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-11-24 22:11:22,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:22,037 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:22,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:22,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:22,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:22,174 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:22,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:22,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:22,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:22,183 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:22,184 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:22,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:22,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:22,185 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:22,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-11-24 22:11:22,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:22,426 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:22,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:22,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:22,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:22,583 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:22,586 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:22,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:22,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:22,595 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:22,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:22,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:22,596 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:22,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:22,600 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:22,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-11-24 22:11:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:22,840 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:22,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:22,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:22,882 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:23,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:23,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-11-24 22:11:23,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:23,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:23,085 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:23,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:23,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:23,086 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:23,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:23,087 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:23,112 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-11-24 22:11:23,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:23,358 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:23,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:23,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:23,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:23,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:23,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:23,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:23,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:23,599 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:23,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:23,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:23,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:23,604 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:23,620 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-11-24 22:11:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:23,864 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:23,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:23,915 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:23,916 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:24,019 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:24,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:24,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:24,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:24,033 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:24,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:24,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:24,034 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:24,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:24,036 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:24,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-11-24 22:11:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:24,306 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:24,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:24,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:24,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:24,452 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:24,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:24,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:24,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:24,458 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:24,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:24,459 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:24,459 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:24,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:24,460 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:24,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-11-24 22:11:24,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:24,714 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:24,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:24,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:24,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:24,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:24,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-11-24 22:11:24,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:24,872 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:24,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:24,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:24,873 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:24,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:24,874 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:24,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-11-24 22:11:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:25,126 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:25,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:25,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:25,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:25,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:25,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:25,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:25,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:25,295 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:25,295 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:25,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:25,296 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:25,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-11-24 22:11:25,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:25,560 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:25,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:25,592 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:25,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:25,703 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:25,706 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-11-24 22:11:25,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:25,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:25,714 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:25,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:25,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:25,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:25,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:25,716 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:25,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-11-24 22:11:25,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:25,989 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:26,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:26,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:26,137 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:26,140 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (49)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:26,140 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:26,155 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:26,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:26,156 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:26,156 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:26,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:26,157 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:26,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-11-24 22:11:26,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:26,440 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:26,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:26,475 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:26,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:26,640 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:26,643 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:26,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:26,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:26,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:26,653 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:26,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:26,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:26,653 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:26,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:26,660 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:26,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-11-24 22:11:26,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:26,930 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:26,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:26,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:26,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:27,083 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:27,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-11-24 22:11:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:27,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:27,095 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:27,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:27,096 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:27,096 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:27,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:27,097 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:27,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-11-24 22:11:27,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:27,372 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:27,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:27,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:27,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:27,529 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:27,532 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:27,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:27,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:27,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:27,549 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:27,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:27,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:27,550 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:27,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:27,551 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:27,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-11-24 22:11:27,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:27,860 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:27,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:27,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:28,037 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (53)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:28,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:28,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:28,047 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:28,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:28,048 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:28,048 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:28,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:28,052 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:28,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-11-24 22:11:28,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:28,327 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:28,356 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:28,357 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:28,485 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:28,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:28,493 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:28,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:28,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:28,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:28,495 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:28,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-11-24 22:11:28,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:28,781 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:28,817 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:28,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:28,944 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (55)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:28,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:28,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:28,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:28,957 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:28,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:28,958 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:28,958 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:28,958 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:28,959 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:28,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-11-24 22:11:29,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:29,235 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:29,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:29,274 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:29,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:29,401 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-11-24 22:11:29,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:29,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:29,411 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:29,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:29,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:29,412 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:29,412 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:29,413 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:29,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-11-24 22:11:29,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:29,727 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:29,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:29,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:29,761 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:29,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-11-24 22:11:30,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:30,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:30,000 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:30,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:30,001 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:30,001 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:30,001 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:30,002 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:30,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-11-24 22:11:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:30,291 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:30,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:30,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:30,535 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:30,539 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:30,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:30,551 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:30,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:30,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:30,552 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:30,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:30,553 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:30,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-11-24 22:11:30,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:30,855 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:30,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:30,953 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:11:30,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:31,139 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:31,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-11-24 22:11:31,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:31,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:31,152 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:31,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:31,152 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:31,153 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:31,153 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:31,154 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:31,155 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-11-24 22:11:31,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:31,446 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:31,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:31,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:31,626 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:31,629 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-11-24 22:11:31,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:31,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:31,646 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:31,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:31,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:31,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:31,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:31,651 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:31,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-11-24 22:11:31,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:31,953 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:31,988 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:31,989 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:32,134 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:32,137 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-11-24 22:11:32,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:32,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:32,147 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:32,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:32,147 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:32,148 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:32,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:32,150 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:32,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-11-24 22:11:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:32,443 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:32,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:32,479 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:32,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:32,581 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:32,584 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:32,584 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (62)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:32,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:32,591 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:32,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:32,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:32,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:32,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:32,593 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:32,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-11-24 22:11:32,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:32,863 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:32,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:32,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:32,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:33,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:33,008 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (63)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:33,016 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:33,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:33,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,016 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:33,017 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:33,017 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:33,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-11-24 22:11:33,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,300 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,336 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:33,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:33,439 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:33,441 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (64)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:33,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:33,450 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:33,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:33,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:33,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:33,451 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:33,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-11-24 22:11:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,733 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:33,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:33,773 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:33,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:33,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:33,865 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (65)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:33,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:33,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:33,872 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:33,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:33,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:33,873 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:33,873 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:33,874 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:33,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-11-24 22:11:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:34,145 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:34,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:34,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:34,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:34,279 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:34,282 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (66)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:34,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:34,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:34,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:34,289 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:34,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:34,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:34,290 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:34,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:34,296 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:34,301 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-11-24 22:11:34,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:34,567 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:34,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:34,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:34,718 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:34,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (67)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:34,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:34,729 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:34,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:34,730 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:34,730 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:34,730 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:34,731 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:34,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-11-24 22:11:35,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:35,049 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:35,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:35,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:35,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:35,186 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:35,189 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (68)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:35,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:35,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:35,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:35,198 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:35,198 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:35,198 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:35,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:35,199 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:35,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-11-24 22:11:35,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:35,492 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:35,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:35,526 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:35,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:35,623 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:35,626 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2023-11-24 22:11:35,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:35,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:35,633 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:35,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:35,634 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:35,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:35,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:35,635 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:35,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-11-24 22:11:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:35,922 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:35,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:35,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:35,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:36,066 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:36,068 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (70)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:11:36,069 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (70)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:36,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:36,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:36,077 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:36,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:36,078 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:36,078 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:36,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:36,079 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:36,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-11-24 22:11:36,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:36,357 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:36,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:36,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:11:36,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:36,578 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:36,581 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (71)] Forceful destruction successful, exit code 0 [2023-11-24 22:11:36,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:36,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:36,591 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:36,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:36,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:36,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:36,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:36,593 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:36,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-11-24 22:11:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:36,890 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:36,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:11:36,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:11:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:11:37,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2023-11-24 22:11:37,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:11:37,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 68 states and 100 transitions. [2023-11-24 22:11:37,054 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 100 transitions. [2023-11-24 22:11:37,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:11:37,054 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:11:37,054 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:11:37,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:11:37,055 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:11:37,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb2ac52c-2740-4c23-85cf-3466ebea09c0/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-11-24 22:11:37,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:37,334 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:11:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:11:37,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:11:37,373 INFO L285 TraceCheckSpWp]: Computing forward predicates...