./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9bd2c7ff Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:24:27,542 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:24:27,624 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 03:24:27,629 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 03:24:27,630 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 03:24:27,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:24:27,657 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:24:27,657 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:24:27,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:24:27,659 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:24:27,660 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:24:27,660 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:24:27,661 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:24:27,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 03:24:27,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:24:27,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:24:27,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:24:27,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:24:27,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:24:27,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:24:27,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:24:27,667 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:24:27,667 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:24:27,668 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:24:27,668 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:24:27,669 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:24:27,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:24:27,670 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:24:27,671 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:24:27,671 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:24:27,672 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 03:24:27,672 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 03:24:27,673 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:24:27,673 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_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 [2023-11-19 03:24:27,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:24:28,009 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:24:28,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:24:28,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:24:28,018 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:24:28,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-19 03:24:31,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:24:31,439 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:24:31,440 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-19 03:24:31,456 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data/e9e61fecc/887cf816929c454fa7a900a3db307053/FLAG2ac33bc31 [2023-11-19 03:24:31,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data/e9e61fecc/887cf816929c454fa7a900a3db307053 [2023-11-19 03:24:31,481 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:24:31,483 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:24:31,487 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:24:31,487 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:24:31,492 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:24:31,495 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,497 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e623bdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31, skipping insertion in model container [2023-11-19 03:24:31,497 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,528 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:24:31,745 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_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-19 03:24:31,751 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_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-19 03:24:31,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:24:31,763 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:24:31,790 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_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-19 03:24:31,792 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_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-19 03:24:31,793 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:24:31,811 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:24:31,812 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31 WrapperNode [2023-11-19 03:24:31,812 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:24:31,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:24:31,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:24:31,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:24:31,823 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,842 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,874 INFO L138 Inliner]: procedures = 19, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-19 03:24:31,875 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:24:31,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:24:31,876 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:24:31,876 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:24:31,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,902 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,904 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,906 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,909 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:24:31,910 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:24:31,910 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:24:31,911 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:24:31,911 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:31" (1/1) ... [2023-11-19 03:24:31,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:24:31,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:24:31,953 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:24:31,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:24:31,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:24:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 03:24:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:24:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-19 03:24:31,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-19 03:24:31,994 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-19 03:24:31,995 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-19 03:24:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 03:24:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:24:31,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:24:31,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 03:24:31,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:24:32,075 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:24:32,077 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:24:32,334 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:24:32,503 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:24:32,503 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:24:32,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:24:32 BoogieIcfgContainer [2023-11-19 03:24:32,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:24:32,509 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:24:32,509 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:24:32,520 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:24:32,520 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:24:32" (1/1) ... [2023-11-19 03:24:32,530 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:24:32,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:32,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 47 states and 65 transitions. [2023-11-19 03:24:32,585 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2023-11-19 03:24:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:24:32,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:32,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:24:32,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:24:33,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 49 states and 64 transitions. [2023-11-19 03:24:33,009 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2023-11-19 03:24:33,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 03:24:33,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:33,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:24:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-19 03:24:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2023-11-19 03:24:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-19 03:24:33,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 03:24:33,234 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:33,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 03:24:33,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:24:33,318 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:24:33,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:24:33,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:24:33,531 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 03:24:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 03:24:33,597 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 03:24:33,638 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 03:24:33,639 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 03:24:33,640 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-19 03:24:33,640 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 03:24:33,641 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-19 03:24:33,641 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-19 03:24:33,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-19 03:24:33,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 03:24:33,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-19 03:24:33,642 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-19 03:24:33,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-19 03:24:33,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 03:24:33,643 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-19 03:24:33,644 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-19 03:24:33,645 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-19 03:24:33,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated [2023-11-19 03:24:33,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-19 03:24:33,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-19 03:24:33,646 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated [2023-11-19 03:24:33,647 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated [2023-11-19 03:24:33,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated [2023-11-19 03:24:33,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated [2023-11-19 03:24:33,649 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-19 03:24:33,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 03:24:33 ImpRootNode [2023-11-19 03:24:33,659 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 03:24:33,660 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 03:24:33,660 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 03:24:33,661 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 03:24:33,661 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:24:32" (3/4) ... [2023-11-19 03:24:33,667 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 03:24:33,668 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 03:24:33,671 INFO L158 Benchmark]: Toolchain (without parser) took 2186.92ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 94.2MB in the beginning and 101.5MB in the end (delta: -7.2MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-11-19 03:24:33,672 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:24:33,673 INFO L158 Benchmark]: CACSL2BoogieTranslator took 325.65ms. Allocated memory is still 138.4MB. Free memory was 94.2MB in the beginning and 82.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-19 03:24:33,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.43ms. Allocated memory is still 138.4MB. Free memory was 82.6MB in the beginning and 80.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:24:33,676 INFO L158 Benchmark]: Boogie Preprocessor took 33.84ms. Allocated memory is still 138.4MB. Free memory was 80.8MB in the beginning and 79.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 03:24:33,677 INFO L158 Benchmark]: RCFGBuilder took 598.45ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 79.3MB in the beginning and 146.8MB in the end (delta: -67.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2023-11-19 03:24:33,683 INFO L158 Benchmark]: CodeCheck took 1150.25ms. Allocated memory is still 176.2MB. Free memory was 146.8MB in the beginning and 101.9MB in the end (delta: 44.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-19 03:24:33,684 INFO L158 Benchmark]: Witness Printer took 8.81ms. Allocated memory is still 176.2MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 03:24:33,690 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: 1.1s, 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s 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: 77]: 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 76. Possible FailurePath: [L68] float x = __VERIFIER_nondet_float(); [L69] float y = __VERIFIER_nondet_float(); [L70] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L59] return x != x; [L70] RET, EXPR isnan_float(x) VAL [x=2] [L70] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2] [L70] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L59] return x != x; [L70] RET, EXPR isnan_float(y) VAL [x=2, y=3] [L70] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2, y=3] [L70-L71] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) VAL [x=2, y=3] [L70-L71] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L73] CALL, EXPR fmin_float(x, y) [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2] [L15] __uint32_t w; VAL [\old(x)=2, x=2] [L18] ieee_float_shape_type gf_u; [L19] EXPR gf_u.value = (x) [L20] EXPR gf_u.word [L20] EXPR (w) = gf_u.word [L17-L21] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=2, w=2139095041, x=2] [L23] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L25-L26] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L28-L29] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L31] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L34] return 0; [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2, \old(y)=3, x=2, y=3] [L38] COND TRUE __fpclassify_float(x) == 0 [L39] return y; VAL [\old(x)=2, \old(y)=3, \result=3, x=2, y=3] [L73] RET, EXPR fmin_float(x, y) [L73] float res = fmin_float(x, y); [L76] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L59] return x != x; [L76] RET, EXPR isnan_float(x) VAL [res=3, x=2, y=3] [L76] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L76] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L59] return x != x; [L76] RET, EXPR isnan_float(y) VAL [res=3, x=2, y=3] [L76] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L76] COND TRUE isnan_float(x) && !isnan_float(y) && res != y [L77] 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 0.33ms. Allocated memory is still 138.4MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 325.65ms. Allocated memory is still 138.4MB. Free memory was 94.2MB in the beginning and 82.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.43ms. Allocated memory is still 138.4MB. Free memory was 82.6MB in the beginning and 80.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.84ms. Allocated memory is still 138.4MB. Free memory was 80.8MB in the beginning and 79.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 598.45ms. Allocated memory was 138.4MB in the beginning and 176.2MB in the end (delta: 37.7MB). Free memory was 79.3MB in the beginning and 146.8MB in the end (delta: -67.5MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. * CodeCheck took 1150.25ms. Allocated memory is still 176.2MB. Free memory was 146.8MB in the beginning and 101.9MB in the end (delta: 44.8MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 8.81ms. Allocated memory is still 176.2MB. Free memory is still 101.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 03:24:33,754 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 03:24:36,459 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 03:24:36,560 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 03:24:36,590 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 03:24:36,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 03:24:36,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 03:24:36,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 03:24:36,594 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 03:24:36,594 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 03:24:36,595 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 03:24:36,596 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 03:24:36,596 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 03:24:36,597 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 03:24:36,597 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 03:24:36,598 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 03:24:36,598 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 03:24:36,599 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 03:24:36,599 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 03:24:36,600 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 03:24:36,600 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 03:24:36,601 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 03:24:36,601 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 03:24:36,602 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 03:24:36,602 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 03:24:36,603 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 03:24:36,603 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:36,604 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 03:24:36,604 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 03:24:36,605 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:24:36,605 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 03:24:36,606 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 03:24:36,606 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 03:24:36,606 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 03:24:36,607 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:36,607 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 03:24:36,607 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 03:24:36,607 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 03:24:36,607 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_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 [2023-11-19 03:24:37,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 03:24:37,086 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 03:24:37,090 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 03:24:37,091 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 03:24:37,092 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 03:24:37,094 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-19 03:24:40,253 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 03:24:40,505 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 03:24:40,506 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-19 03:24:40,516 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data/bdcc42ffd/1f2f259e07ba40f98da94e88830b4b65/FLAG7c084db35 [2023-11-19 03:24:40,533 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/data/bdcc42ffd/1f2f259e07ba40f98da94e88830b4b65 [2023-11-19 03:24:40,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 03:24:40,538 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 03:24:40,539 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 03:24:40,539 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 03:24:40,545 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 03:24:40,546 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:40,547 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c42152c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40, skipping insertion in model container [2023-11-19 03:24:40,547 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:40,570 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 03:24:40,834 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_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-19 03:24:40,841 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_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-19 03:24:40,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:24:40,863 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 03:24:40,911 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_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-19 03:24:40,915 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-19 03:24:40,919 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 03:24:40,939 INFO L206 MainTranslator]: Completed translation [2023-11-19 03:24:40,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40 WrapperNode [2023-11-19 03:24:40,940 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 03:24:40,942 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 03:24:40,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 03:24:40,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 03:24:40,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:40,978 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,012 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2023-11-19 03:24:41,012 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 03:24:41,013 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 03:24:41,014 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 03:24:41,014 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 03:24:41,023 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,044 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,045 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,067 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,083 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,087 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 03:24:41,088 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 03:24:41,088 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 03:24:41,088 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 03:24:41,089 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 03:24:40" (1/1) ... [2023-11-19 03:24:41,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 03:24:41,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 03:24:41,186 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 03:24:41,219 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 03:24:41,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 03:24:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 03:24:41,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 03:24:41,243 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-19 03:24:41,243 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-19 03:24:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-19 03:24:41,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-19 03:24:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 03:24:41,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 03:24:41,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 03:24:41,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 03:24:41,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 03:24:41,360 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 03:24:41,370 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 03:24:41,645 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 03:24:41,736 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 03:24:41,736 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 03:24:41,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:24:41 BoogieIcfgContainer [2023-11-19 03:24:41,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 03:24:41,753 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 03:24:41,753 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 03:24:41,763 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 03:24:41,764 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 03:24:41" (1/1) ... [2023-11-19 03:24:41,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 03:24:41,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:41,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 64 transitions. [2023-11-19 03:24:41,834 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-19 03:24:41,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 03:24:41,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:41,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:41,842 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:41,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:41,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 03:24:42,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:42,034 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:42,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:42,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 03:24:42,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:42,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-19 03:24:42,123 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:24:42,129 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:42,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2023-11-19 03:24:42,166 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-11-19 03:24:42,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 03:24:42,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:42,168 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:42,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:42,169 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:42,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 03:24:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:42,364 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:42,409 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 03:24:42,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:42,445 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:24:42,447 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:24:42,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:42,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:42,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 47 states and 63 transitions. [2023-11-19 03:24:42,493 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-19 03:24:42,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 03:24:42,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:42,497 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:42,498 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:42,500 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:42,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 03:24:42,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:42,681 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:42,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 03:24:42,716 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:42,767 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-19 03:24:42,770 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:24:42,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:42,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:42,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 65 transitions. [2023-11-19 03:24:42,828 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-19 03:24:42,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:42,831 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:42,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:42,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:42,832 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:42,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 03:24:43,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:43,118 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:43,205 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 03:24:43,208 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:43,895 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:43,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:44,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:44,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:44,909 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:44,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:44,910 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:44,910 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:44,911 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:44,912 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:44,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 03:24:45,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:45,225 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:45,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:45,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:45,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:45,516 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:45,524 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-19 03:24:45,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:45,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:45,600 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:45,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:45,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:45,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:45,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:45,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:45,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 03:24:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:45,873 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:45,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:45,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:45,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:46,119 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:46,127 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:46,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:46,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:46,145 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:46,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:46,147 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:46,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:46,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:46,149 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:46,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 03:24:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:46,386 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:46,418 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:46,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:46,635 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:46,643 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:46,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:46,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:46,663 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:46,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:46,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:46,665 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:46,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:46,667 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:46,692 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 03:24:46,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:46,969 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:47,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:47,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:47,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:47,240 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:47,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-11-19 03:24:47,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:47,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:47,266 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:47,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:47,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:47,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:47,268 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:47,269 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:47,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 03:24:47,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:47,542 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:47,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:47,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:47,802 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:47,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:47,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:47,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:47,839 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:47,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:47,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:47,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:47,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:47,844 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:47,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 03:24:48,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:48,114 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:48,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:48,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:48,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:48,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:48,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:48,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:48,378 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:48,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:48,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:48,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:48,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:48,384 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:48,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 03:24:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:48,651 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:48,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:48,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:48,897 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:48,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:48,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:48,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:48,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:48,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:48,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:48,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:48,915 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:48,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 03:24:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:49,166 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:49,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:49,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:49,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:49,436 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:49,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:49,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:49,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 03:24:49,464 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 03:24:49,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:49,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:49,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:49,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:49,466 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:49,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-19 03:24:49,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:49,725 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:49,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:49,756 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:49,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:50,594 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:50,598 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:24:50,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-11-19 03:24:52,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:52,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:52,709 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:52,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:52,710 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:52,710 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:52,710 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:52,714 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:52,716 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-19 03:24:52,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:52,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:52,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:52,967 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:24:52,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:53,445 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:24:53,446 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:53,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:53,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:53,560 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:53,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:53,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:53,561 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:53,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:53,567 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:53,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 03:24:53,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:53,804 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:53,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:53,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:53,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:54,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:54,043 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:54,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:54,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:54,055 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:54,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:54,056 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:54,056 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:54,056 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:54,058 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:54,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-19 03:24:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:54,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:54,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:54,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:54,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:54,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:54,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:54,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:54,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:54,615 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:54,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:54,617 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:54,617 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:54,618 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:54,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-19 03:24:54,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:54,864 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:54,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:54,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:55,131 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:55,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:55,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:55,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:55,149 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:55,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:55,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:55,150 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:55,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:55,152 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:55,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-19 03:24:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:55,399 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:55,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:55,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:55,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:55,616 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:55,624 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:55,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:55,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:55,637 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:55,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:55,638 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:55,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:55,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:55,639 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:55,669 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-19 03:24:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:55,955 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:55,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:55,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:55,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:56,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:56,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:56,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:56,213 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:56,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:56,214 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:56,215 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:56,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:56,216 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:56,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-19 03:24:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:56,477 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:56,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:56,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:56,726 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:56,734 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:56,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:56,746 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:56,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:56,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:56,747 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:56,748 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:56,749 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:56,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-19 03:24:57,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:57,055 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:57,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:57,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:57,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:57,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:57,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:57,300 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:57,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:57,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:57,301 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:57,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:57,302 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:57,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-19 03:24:57,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:57,539 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:57,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:57,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:57,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:57,775 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:57,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:57,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:57,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:57,794 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:57,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:57,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:57,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:57,797 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:57,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-19 03:24:58,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:58,050 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:58,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:58,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:58,082 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:58,296 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:58,304 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:58,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:58,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:58,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:58,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:58,319 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:58,319 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:58,320 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:58,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-19 03:24:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:58,560 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:58,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:58,587 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:58,589 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:58,863 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:58,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:58,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:58,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:58,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:58,881 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:58,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:58,887 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:58,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-19 03:24:59,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:59,181 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:59,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:59,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:59,212 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:59,435 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:59,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:59,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:59,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:59,450 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:59,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:59,451 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:59,451 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:59,451 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:59,452 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:59,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-19 03:24:59,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:59,707 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:24:59,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:24:59,736 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:24:59,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:24:59,902 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:24:59,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-11-19 03:24:59,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:24:59,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:24:59,913 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:24:59,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:24:59,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:24:59,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:24:59,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:24:59,920 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:24:59,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-11-19 03:25:00,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:00,158 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:00,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:00,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:00,374 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:00,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:00,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:00,392 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:00,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:00,394 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:00,394 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:00,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:00,395 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:00,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-19 03:25:00,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:00,643 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:00,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:00,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:00,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:00,875 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:00,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:00,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:00,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:00,899 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:00,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:00,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:00,902 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:00,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:00,903 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:00,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-11-19 03:25:01,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:01,229 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:01,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:01,259 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:01,260 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:01,422 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:01,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:01,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:01,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:01,434 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:01,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:01,435 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:01,435 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:01,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:01,436 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:01,438 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-19 03:25:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:01,673 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:01,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:01,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:01,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:01,948 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:01,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:01,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:01,959 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:01,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:01,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:01,960 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:01,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:01,961 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:01,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-11-19 03:25:02,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:02,206 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:02,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:02,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:02,419 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:02,422 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:02,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:02,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:02,431 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:02,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:02,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:02,432 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:02,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:02,433 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:02,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-11-19 03:25:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:02,671 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:02,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:02,705 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:02,706 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:02,872 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:02,874 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (33)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:02,876 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:02,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:02,886 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:02,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:02,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:02,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:02,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:02,888 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:02,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-11-19 03:25:03,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:03,123 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:03,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:03,162 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:03,340 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-11-19 03:25:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:03,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:03,355 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:03,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:03,356 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:03,356 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:03,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:03,357 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:03,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-11-19 03:25:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:03,610 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:03,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:03,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:03,638 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:03,822 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:03,825 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-11-19 03:25:03,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:03,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:03,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:03,841 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:03,841 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:03,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:03,842 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:03,851 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-11-19 03:25:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:04,098 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:04,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:04,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:04,303 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:04,306 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:04,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:04,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:04,321 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:04,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:04,322 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:04,322 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:04,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:04,324 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:04,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-11-19 03:25:04,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:04,579 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:04,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:04,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:04,780 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:04,783 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:04,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:04,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:04,793 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:04,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:04,793 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:04,794 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:04,794 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:04,796 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:04,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-11-19 03:25:05,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:05,046 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:05,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:05,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:05,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:05,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:05,254 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (38)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:05,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:05,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:05,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:05,278 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:05,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:05,279 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:05,279 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:05,279 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:05,280 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:05,282 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-11-19 03:25:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:05,525 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:05,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:25:05,553 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:05,874 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:05,878 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:05,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:05,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:05,888 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:05,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:05,889 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:05,891 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:05,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:05,892 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:05,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-11-19 03:25:06,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:06,150 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:06,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:06,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:06,183 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:06,332 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:06,335 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (40)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:06,337 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:06,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:06,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:06,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:06,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:06,346 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:06,346 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:06,347 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:06,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-11-19 03:25:06,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:06,590 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:06,621 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:06,622 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:06,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-11-19 03:25:06,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:06,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:06,815 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:06,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:06,816 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:06,816 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:06,816 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:06,820 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:06,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-11-19 03:25:07,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:07,085 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:07,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:07,122 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:07,123 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:07,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:07,294 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:07,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:07,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:07,307 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:07,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:07,308 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:07,308 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:07,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:07,309 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:07,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-11-19 03:25:07,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:07,610 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:07,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:07,638 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:07,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:07,840 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:07,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:07,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:07,851 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:07,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:07,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:07,853 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:07,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:07,854 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:07,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-11-19 03:25:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:08,175 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:08,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:08,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:08,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:08,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:08,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-11-19 03:25:08,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:08,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:08,380 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:08,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:08,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:08,380 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:08,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:08,381 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:08,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-11-19 03:25:08,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:08,621 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:08,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:08,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:08,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:08,835 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:08,838 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-11-19 03:25:08,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:08,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:08,847 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:08,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:08,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:08,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:08,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:08,852 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:08,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-11-19 03:25:09,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:09,173 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:09,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:09,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:09,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:09,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:09,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:09,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:09,351 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:09,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:09,352 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:09,352 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:09,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:09,353 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:09,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-11-19 03:25:09,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:09,600 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:09,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:09,634 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:09,794 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:09,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:09,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:09,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:09,811 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:09,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:09,812 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:09,812 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:09,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:09,813 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:09,818 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-11-19 03:25:10,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:10,068 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:10,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:10,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:10,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:10,250 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:10,254 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (48)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:10,260 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:10,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:10,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:10,268 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:10,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:10,268 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:10,268 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:10,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:10,270 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:10,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-11-19 03:25:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:10,525 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:10,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:10,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:10,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:10,759 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:10,761 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:10,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:10,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:10,776 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:10,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:10,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:10,777 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:10,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:10,778 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:10,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-11-19 03:25:11,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:11,047 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:11,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:11,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:11,259 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:11,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:11,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:11,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:11,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:11,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:11,271 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:11,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:11,272 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:11,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-11-19 03:25:11,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:11,529 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:11,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:11,555 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:11,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:11,753 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:11,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:11,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:11,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:11,766 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:11,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:11,767 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:11,767 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:11,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:11,768 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:11,771 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-11-19 03:25:12,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:12,026 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:12,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:12,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:12,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:12,213 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:12,216 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:12,216 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (52)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:12,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:12,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:12,224 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:12,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:12,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:12,225 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:12,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:12,228 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:12,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-11-19 03:25:12,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:12,493 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:12,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:12,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:12,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:12,708 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (53)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:12,708 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (53)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:12,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:12,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:12,717 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:12,717 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:12,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:12,718 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:12,719 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-11-19 03:25:12,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:12,975 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:13,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:13,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:13,166 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:13,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-11-19 03:25:13,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:13,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:13,177 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:13,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:13,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:13,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:13,179 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:13,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-11-19 03:25:13,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:13,467 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:13,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:13,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:13,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:13,663 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:13,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:13,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:13,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:13,674 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:13,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:13,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:13,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:13,676 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:13,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-11-19 03:25:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:13,934 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:13,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:13,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:13,961 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:14,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (56)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:14,103 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (56)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:14,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:14,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:14,115 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:14,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:14,116 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:14,116 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:14,116 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:14,117 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:14,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-11-19 03:25:14,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:14,387 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:14,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:14,432 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:14,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:14,604 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (57)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:14,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:14,612 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:14,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:14,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:14,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:14,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:14,614 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:14,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-11-19 03:25:14,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:14,878 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:14,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:14,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:15,092 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:15,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:15,095 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (58)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:15,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:15,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:15,103 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:15,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:15,104 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:15,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:15,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:15,105 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:15,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-11-19 03:25:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:15,375 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:15,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:15,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:15,598 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:15,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-11-19 03:25:15,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:15,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:15,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:15,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:15,610 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:15,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:15,616 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:15,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-11-19 03:25:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:15,898 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:15,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:15,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:15,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:16,142 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:16,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:16,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:16,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:16,156 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:16,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:16,157 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:16,157 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:16,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:16,158 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:16,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-11-19 03:25:16,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:16,424 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:16,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:16,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:16,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:16,637 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:16,640 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-11-19 03:25:16,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:16,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:16,647 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:16,647 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:16,647 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:16,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:16,648 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:16,650 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-11-19 03:25:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:16,915 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:16,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:16,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:16,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:17,113 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-11-19 03:25:17,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:17,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:17,121 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:17,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:17,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:17,121 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:17,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:17,123 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:17,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-11-19 03:25:17,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:17,391 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:17,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:17,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:17,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:17,610 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:17,613 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:17,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:17,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:17,620 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:17,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:17,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:17,621 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:17,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:17,622 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:17,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-11-19 03:25:17,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:17,901 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:17,927 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:17,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:18,093 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:18,103 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (64)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:18,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:18,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:18,112 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:18,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:18,114 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:18,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:18,115 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:18,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-11-19 03:25:18,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:18,398 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:18,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:18,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:18,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:18,597 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:18,600 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (65)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:18,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (65)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:18,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:18,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:18,612 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:18,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:18,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:18,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:18,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:18,616 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:18,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-11-19 03:25:18,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:18,901 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:18,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:18,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:18,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:19,087 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:19,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:19,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:19,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:19,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:19,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:19,100 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:19,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:19,101 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:19,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-11-19 03:25:19,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:19,378 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:19,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:19,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:19,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:19,580 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:19,583 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (67)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:19,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (67)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:19,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:19,591 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:19,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:19,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:19,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:19,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:19,600 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:19,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-11-19 03:25:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:19,873 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:19,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:19,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:19,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:20,058 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:20,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:20,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:20,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:20,069 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:20,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:20,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:20,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:20,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:20,070 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:20,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-11-19 03:25:20,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:20,349 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:20,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:20,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:20,549 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:20,552 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (69)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:20,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:20,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:20,567 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:20,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:20,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:20,568 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:20,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:20,569 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:20,579 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-11-19 03:25:20,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:20,833 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:20,858 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:20,859 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:21,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:21,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (70)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:21,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:21,041 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:21,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:21,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:21,042 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:21,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:21,043 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:21,056 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-11-19 03:25:21,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:21,307 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:21,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:21,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:21,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:21,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:21,483 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (71)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:21,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (71)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:21,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:21,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:21,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:21,491 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:21,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:21,493 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:21,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-11-19 03:25:21,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:21,768 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:21,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:21,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 03:25:21,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:21,976 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:21,979 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:21,979 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (72)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:21,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:21,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:21,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:21,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:21,987 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:21,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:21,988 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:21,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-11-19 03:25:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:22,270 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 03:25:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 03:25:22,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 03:25:22,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 03:25:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 03:25:22,630 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (73)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 03:25:22,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (73)] Forceful destruction successful, exit code 0 [2023-11-19 03:25:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 03:25:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-19 03:25:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-19 03:25:22,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 03:25:22,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 03:25:22,640 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 03:25:22,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 03:25:22,641 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 03:25:22,643 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c56f1080-0214-42ed-8cbb-00b242f8db24/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process