./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 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_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/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_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/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_d7db1c71-6979-4c18-b1e9-448b7493573d/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 de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:58:29,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:58:29,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-19 02:58:29,665 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-19 02:58:29,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-19 02:58:29,698 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:58:29,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:58:29,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:58:29,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:58:29,701 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:58:29,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:58:29,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:58:29,703 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:58:29,704 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-19 02:58:29,707 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:58:29,707 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:58:29,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:58:29,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:58:29,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:58:29,714 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:58:29,716 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:58:29,716 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:58:29,717 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:58:29,717 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:58:29,718 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:58:29,719 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:58:29,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:58:29,720 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:58:29,720 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:58:29,721 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:58:29,722 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-19 02:58:29,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-19 02:58:29,722 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:58:29,723 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_d7db1c71-6979-4c18-b1e9-448b7493573d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2023-11-19 02:58:30,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:58:30,104 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:58:30,107 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:58:30,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:58:30,109 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:58:30,110 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-19 02:58:33,159 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:58:33,347 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:58:33,348 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-19 02:58:33,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data/7c017caf0/31094c43d6d944a18fde8de9c97d5fed/FLAG2e9929b36 [2023-11-19 02:58:33,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data/7c017caf0/31094c43d6d944a18fde8de9c97d5fed [2023-11-19 02:58:33,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:58:33,375 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:58:33,376 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:58:33,376 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:58:33,381 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:58:33,382 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,383 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd703f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33, skipping insertion in model container [2023-11-19 02:58:33,383 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:58:33,621 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-19 02:58:33,634 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-19 02:58:33,641 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:58:33,651 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:58:33,690 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-19 02:58:33,698 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-19 02:58:33,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:58:33,724 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:58:33,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33 WrapperNode [2023-11-19 02:58:33,725 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:58:33,727 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:58:33,727 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:58:33,727 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:58:33,735 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,776 INFO L138 Inliner]: procedures = 18, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-19 02:58:33,785 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:58:33,786 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:58:33,786 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:58:33,786 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:58:33,797 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,797 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,801 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,801 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,808 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,812 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,814 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,816 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,818 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:58:33,819 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:58:33,819 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:58:33,820 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:58:33,820 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:33" (1/1) ... [2023-11-19 02:58:33,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:58:33,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:58:33,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:58:33,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:58:33,912 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:58:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-19 02:58:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:58:33,913 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-19 02:58:33,914 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-19 02:58:33,914 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-19 02:58:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-19 02:58:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-19 02:58:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:58:33,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:58:33,915 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-19 02:58:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:58:34,038 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:58:34,040 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:58:34,363 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:58:34,505 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:58:34,520 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 02:58:34,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:34 BoogieIcfgContainer [2023-11-19 02:58:34,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:58:34,526 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:58:34,526 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:58:34,537 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:58:34,537 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:34" (1/1) ... [2023-11-19 02:58:34,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:58:34,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:34,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 47 states and 65 transitions. [2023-11-19 02:58:34,593 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2023-11-19 02:58:34,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:58:34,598 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:34,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:34,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:34,945 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 02:58:35,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:35,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 49 states and 64 transitions. [2023-11-19 02:58:35,039 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2023-11-19 02:58:35,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-19 02:58:35,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:35,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:35,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:35,139 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 02:58:35,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:35,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2023-11-19 02:58:35,168 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-19 02:58:35,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-19 02:58:35,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:35,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-19 02:58:35,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:58:35,247 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:58:35,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:58:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:58:35,363 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-19 02:58:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-19 02:58:35,410 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-19 02:58:35,439 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-19 02:58:35,440 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-19 02:58:35,440 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-19 02:58:35,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-19 02:58:35,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-19 02:58:35,441 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 02:58:35,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-19 02:58:35,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 02:58:35,442 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-19 02:58:35,443 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-19 02:58:35,443 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated [2023-11-19 02:58:35,443 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated [2023-11-19 02:58:35,443 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated [2023-11-19 02:58:35,444 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-19 02:58:35,445 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-19 02:58:35,445 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-19 02:58:35,445 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-19 02:58:35,446 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-19 02:58:35,446 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-19 02:58:35,446 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-19 02:58:35,446 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated [2023-11-19 02:58:35,447 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-19 02:58:35,447 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated [2023-11-19 02:58:35,453 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 19.11 02:58:35 ImpRootNode [2023-11-19 02:58:35,453 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-19 02:58:35,454 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-19 02:58:35,454 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-19 02:58:35,454 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-19 02:58:35,455 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:34" (3/4) ... [2023-11-19 02:58:35,457 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-19 02:58:35,459 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-19 02:58:35,460 INFO L158 Benchmark]: Toolchain (without parser) took 2084.62ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 118.0MB in the beginning and 147.9MB in the end (delta: -29.9MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2023-11-19 02:58:35,460 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:58:35,461 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.53ms. Allocated memory is still 159.4MB. Free memory was 117.7MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-19 02:58:35,462 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.92ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 104.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-19 02:58:35,463 INFO L158 Benchmark]: Boogie Preprocessor took 32.37ms. Allocated memory is still 159.4MB. Free memory was 104.5MB in the beginning and 103.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:58:35,463 INFO L158 Benchmark]: RCFGBuilder took 706.36ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 82.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-19 02:58:35,464 INFO L158 Benchmark]: CodeCheck took 926.90ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 82.1MB in the beginning and 147.9MB in the end (delta: -65.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:58:35,465 INFO L158 Benchmark]: Witness Printer took 5.03ms. Allocated memory is still 209.7MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-19 02:58:35,468 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: 0.9s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 147 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 80 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 32 IncrementalHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 80 mSDtfsCounter, 32 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 362 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s 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: 76]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 75. Possible FailurePath: [L66] float x = __VERIFIER_nondet_float(); [L67] float y = __VERIFIER_nondet_float(); [L69] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L57] return x != x; [L69] RET, EXPR isnan_float(x) VAL [x=2] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2] [L69] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L57] return x != x; [L69] RET, EXPR isnan_float(y) VAL [x=2, y=3] [L69] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2, y=3] [L69-L70] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) VAL [x=2, y=3] [L69-L70] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L72] CALL, EXPR fmax_float(x, y) [L46] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2] [L23] __uint32_t w; VAL [\old(x)=2, x=2] [L26] ieee_float_shape_type gf_u; [L27] EXPR gf_u.value = (x) [L28] EXPR gf_u.word [L28] EXPR (w) = gf_u.word [L25-L29] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=2, w=2139095041, x=2] [L31] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L33-L34] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L36-L37] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L39] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L42] return 0; [L46] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2, \old(y)=3, x=2, y=3] [L46] COND TRUE __fpclassify_float(x) == 0 [L47] return y; VAL [\old(x)=2, \old(y)=3, \result=3, x=2, y=3] [L72] RET, EXPR fmax_float(x, y) [L72] float res = fmax_float(x, y); [L75] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L57] return x != x; [L75] RET, EXPR isnan_float(x) VAL [res=3, x=2, y=3] [L75] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L75] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L57] return x != x; [L75] RET, EXPR isnan_float(y) VAL [res=3, x=2, y=3] [L75] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L75] COND TRUE isnan_float(x) && !isnan_float(y) && res != y [L76] reach_error() VAL [res=3, x=2, y=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 159.4MB. Free memory is still 107.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.53ms. Allocated memory is still 159.4MB. Free memory was 117.7MB in the beginning and 106.4MB in the end (delta: 11.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.92ms. Allocated memory is still 159.4MB. Free memory was 106.4MB in the beginning and 104.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.37ms. Allocated memory is still 159.4MB. Free memory was 104.5MB in the beginning and 103.3MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 706.36ms. Allocated memory is still 159.4MB. Free memory was 103.0MB in the beginning and 82.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 926.90ms. Allocated memory was 159.4MB in the beginning and 209.7MB in the end (delta: 50.3MB). Free memory was 82.1MB in the beginning and 147.9MB in the end (delta: -65.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.03ms. Allocated memory is still 209.7MB. Free memory is still 147.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short15 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret17 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short19 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-19 02:58:35,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/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_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/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_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/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_d7db1c71-6979-4c18-b1e9-448b7493573d/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 de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-9bd2c7f [2023-11-19 02:58:38,282 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-19 02:58:38,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-19 02:58:38,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-19 02:58:38,469 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-19 02:58:38,470 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-19 02:58:38,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-19 02:58:38,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-19 02:58:38,473 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-19 02:58:38,478 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-19 02:58:38,479 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-19 02:58:38,480 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-19 02:58:38,480 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-19 02:58:38,482 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-19 02:58:38,482 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-19 02:58:38,483 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-19 02:58:38,483 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-19 02:58:38,484 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-19 02:58:38,484 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-19 02:58:38,485 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-19 02:58:38,485 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-19 02:58:38,486 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-19 02:58:38,486 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-19 02:58:38,486 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-19 02:58:38,487 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-19 02:58:38,487 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:38,488 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-19 02:58:38,488 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-19 02:58:38,488 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:58:38,489 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-19 02:58:38,490 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-19 02:58:38,490 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-19 02:58:38,491 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-19 02:58:38,491 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:38,491 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-19 02:58:38,492 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-19 02:58:38,492 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-19 02:58:38,492 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_d7db1c71-6979-4c18-b1e9-448b7493573d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> de540e539c3db6027c1fdb04fcc6cae02aafb8aa58950d31054b2b0b8391af6d [2023-11-19 02:58:38,863 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-19 02:58:38,888 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-19 02:58:38,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-19 02:58:38,892 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-19 02:58:38,892 INFO L274 PluginConnector]: CDTParser initialized [2023-11-19 02:58:38,894 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/../../sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-19 02:58:42,112 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-19 02:58:42,400 INFO L384 CDTParser]: Found 1 translation units. [2023-11-19 02:58:42,400 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c [2023-11-19 02:58:42,411 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data/5f27755e7/7981eb2749034e0284a1a7233f37c63f/FLAG1246d80db [2023-11-19 02:58:42,430 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/data/5f27755e7/7981eb2749034e0284a1a7233f37c63f [2023-11-19 02:58:42,437 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-19 02:58:42,438 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-19 02:58:42,443 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-19 02:58:42,443 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-19 02:58:42,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-19 02:58:42,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6111f15f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42, skipping insertion in model container [2023-11-19 02:58:42,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,478 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-19 02:58:42,700 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-19 02:58:42,714 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-19 02:58:42,716 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:58:42,732 INFO L202 MainTranslator]: Completed pre-run [2023-11-19 02:58:42,774 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[1980,1993] [2023-11-19 02:58:42,775 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_d7db1c71-6979-4c18-b1e9-448b7493573d/sv-benchmarks/c/float-newlib/float_req_bl_1251.c[2139,2152] [2023-11-19 02:58:42,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-19 02:58:42,802 INFO L206 MainTranslator]: Completed translation [2023-11-19 02:58:42,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42 WrapperNode [2023-11-19 02:58:42,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-19 02:58:42,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-19 02:58:42,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-19 02:58:42,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-19 02:58:42,813 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,873 INFO L138 Inliner]: procedures = 21, calls = 22, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2023-11-19 02:58:42,873 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-19 02:58:42,875 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-19 02:58:42,875 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-19 02:58:42,875 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-19 02:58:42,885 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,885 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,906 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,907 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,921 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,927 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,929 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-19 02:58:42,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-19 02:58:42,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-19 02:58:42,945 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-19 02:58:42,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:58:42" (1/1) ... [2023-11-19 02:58:42,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-19 02:58:42,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/z3 [2023-11-19 02:58:42,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-19 02:58:42,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-19 02:58:43,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-19 02:58:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-19 02:58:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-19 02:58:43,019 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-19 02:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-19 02:58:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-19 02:58:43,020 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-19 02:58:43,020 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-19 02:58:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-19 02:58:43,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-19 02:58:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-19 02:58:43,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-19 02:58:43,106 INFO L236 CfgBuilder]: Building ICFG [2023-11-19 02:58:43,110 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-19 02:58:43,419 INFO L277 CfgBuilder]: Performing block encoding [2023-11-19 02:58:43,536 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-19 02:58:43,542 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-19 02:58:43,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:43 BoogieIcfgContainer [2023-11-19 02:58:43,547 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-19 02:58:43,548 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-19 02:58:43,548 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-19 02:58:43,556 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-19 02:58:43,556 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:58:43" (1/1) ... [2023-11-19 02:58:43,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-19 02:58:43,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:43,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 64 transitions. [2023-11-19 02:58:43,616 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-19 02:58:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-19 02:58:43,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:43,621 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:43,622 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:43,624 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:43,625 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-19 02:58:43,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:43,828 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:43,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:43,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-19 02:58:43,867 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:43,919 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 02:58:43,922 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:58:43,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:43,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:43,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2023-11-19 02:58:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-11-19 02:58:43,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-19 02:58:43,963 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:43,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:43,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:43,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:43,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-19 02:58:44,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:44,143 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:44,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-19 02:58:44,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:44,205 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 02:58:44,208 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:58:44,210 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-11-19 02:58:44,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 47 states and 63 transitions. [2023-11-19 02:58:44,237 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-19 02:58:44,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-19 02:58:44,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:44,239 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:44,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:44,240 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:44,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-19 02:58:44,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:44,422 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:44,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:44,463 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-19 02:58:44,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:44,513 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 02:58:44,515 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:58:44,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:44,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:44,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 65 transitions. [2023-11-19 02:58:44,571 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-19 02:58:44,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:44,575 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:44,575 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:44,576 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:44,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-19 02:58:44,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:44,855 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:44,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:44,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:45,537 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 02:58:45,549 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-11-19 02:58:46,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:46,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 02:58:46,543 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 02:58:46,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:46,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:46,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:46,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:46,546 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:46,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-19 02:58:46,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:46,819 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:46,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:46,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:46,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:47,142 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 02:58:47,150 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-19 02:58:47,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:47,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-19 02:58:47,223 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-19 02:58:47,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:47,224 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:47,224 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:47,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:47,229 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:47,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-19 02:58:47,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,537 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:47,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:47,581 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 02:58:47,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:48,734 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 02:58:48,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-11-19 02:58:50,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:50,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:50,739 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:50,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:50,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:50,741 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:50,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:50,744 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:50,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-19 02:58:50,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:50,952 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:50,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:50,985 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:50,987 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:51,238 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 02:58:51,243 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:51,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:51,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:51,275 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:51,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:51,280 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:51,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:51,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:51,282 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:51,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-19 02:58:51,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:51,574 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:51,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:51,602 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:51,604 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:51,814 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 02:58:51,826 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:51,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:51,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:51,848 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:51,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:51,852 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:51,853 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:51,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:51,855 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:51,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-19 02:58:52,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:52,148 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:52,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:52,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:52,181 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:52,410 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 02:58:52,414 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:52,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:52,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:52,447 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:52,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:52,448 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:52,448 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:52,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:52,450 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:52,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-19 02:58:52,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:52,742 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:52,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:52,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:52,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:52,964 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 02:58:52,967 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:52,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:52,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:52,981 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:52,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:52,983 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:52,983 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:52,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:52,984 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:53,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-19 02:58:53,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:53,213 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:53,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:53,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:53,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:53,445 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 02:58:53,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:53,464 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:53,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:53,465 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:53,465 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:53,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:53,469 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:53,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-19 02:58:53,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:53,695 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:53,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:53,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:53,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:53,958 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 02:58:53,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (13)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:53,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:53,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:53,973 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:53,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:53,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:53,975 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:53,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:53,976 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:54,004 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-19 02:58:54,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:54,223 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:54,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:54,254 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:54,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:54,454 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 02:58:54,464 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:54,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:54,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:54,475 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:54,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:54,476 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:54,476 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:54,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:54,478 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:54,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-19 02:58:54,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:54,788 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:54,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:54,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:55,038 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 02:58:55,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:55,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:55,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:55,068 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:55,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:55,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:55,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:55,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:55,070 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:55,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-19 02:58:55,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:55,372 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:55,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:55,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:55,629 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 02:58:55,636 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:55,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:55,648 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:55,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:55,649 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:55,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:55,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:55,650 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:55,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-19 02:58:55,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:55,955 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:55,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:55,984 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:55,986 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:56,222 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 02:58:56,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:56,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:56,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:56,245 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:56,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:56,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:56,247 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:56,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:56,248 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:56,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-19 02:58:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:56,505 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:56,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:56,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 02:58:56,538 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:56,980 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 02:58:56,984 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:56,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:56,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:56,996 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:56,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:56,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:56,997 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:56,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:56,999 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:57,000 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-19 02:58:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:57,257 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:57,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:57,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:57,466 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 02:58:57,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:57,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:57,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:57,485 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:57,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:57,486 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:57,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:57,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:57,490 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:57,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-19 02:58:57,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:57,793 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:57,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:57,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:57,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:58,026 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 02:58:58,029 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:58,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:58,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:58,040 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:58,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:58,041 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:58,041 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:58,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:58,045 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:58,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-19 02:58:58,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:58,269 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:58,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:58,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:58,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:58,506 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 02:58:58,515 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:58,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:58,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:58,529 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:58,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:58,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:58,533 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:58,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:58,536 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:58,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-19 02:58:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:58,786 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:58,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:58,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:59,045 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 02:58:59,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-11-19 02:58:59,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:59,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:59,077 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:59,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:59,081 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:59,082 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:59,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:59,085 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:59,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-19 02:58:59,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:59,392 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:59,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:59,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:58:59,595 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 02:58:59,598 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-11-19 02:58:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:58:59,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:58:59,612 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:58:59,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:58:59,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:58:59,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:58:59,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:58:59,614 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:58:59,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-19 02:58:59,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:59,878 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:58:59,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:58:59,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:58:59,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:00,078 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 02:59:00,081 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (24)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:00,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:00,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:00,092 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:00,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:00,097 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:00,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-19 02:59:00,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:00,366 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:00,394 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:00,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:00,600 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 02:59:00,607 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:00,612 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:00,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:00,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:00,625 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:00,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:00,625 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:00,627 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:00,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:00,629 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:00,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-19 02:59:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:00,857 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:00,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:00,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:00,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:01,051 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 02:59:01,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-11-19 02:59:01,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:01,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:01,063 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:01,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:01,064 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:01,064 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:01,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:01,065 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:01,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-19 02:59:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:01,297 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:01,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:01,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:01,526 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 02:59:01,529 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:01,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:01,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:01,539 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:01,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:01,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:01,541 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:01,541 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:01,542 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:01,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-11-19 02:59:01,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:01,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:01,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:01,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:02,031 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 02:59:02,038 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:02,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:02,049 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:02,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:02,051 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:02,051 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:02,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:02,053 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:02,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-19 02:59:02,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:02,336 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:02,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:02,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:02,528 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 02:59:02,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:02,532 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (29)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:02,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:02,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:02,540 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:02,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:02,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:02,541 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:02,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:02,557 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:02,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-11-19 02:59:02,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:02,802 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:02,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:02,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:02,829 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:03,016 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 02:59:03,018 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (30)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:03,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:03,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:03,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:03,029 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:03,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:03,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:03,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:03,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:03,033 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:03,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-19 02:59:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:03,286 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:03,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:03,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:03,491 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 02:59:03,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:03,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:03,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:03,503 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:03,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:03,504 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:03,504 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:03,504 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:03,509 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:03,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-11-19 02:59:03,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:03,751 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:03,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:03,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:03,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:03,948 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 02:59:03,951 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (32)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:03,952 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:03,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:03,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:03,960 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:03,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:03,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:03,961 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:03,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:03,964 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:03,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-11-19 02:59:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:04,197 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:04,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:04,283 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 02:59:04,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:04,642 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 02:59:04,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:04,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:04,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:04,658 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:04,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:04,659 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:04,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:04,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:04,660 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:04,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-11-19 02:59:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:04,917 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:04,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:04,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:04,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:05,107 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 02:59:05,115 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:05,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:05,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:05,124 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:05,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:05,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:05,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:05,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:05,126 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:05,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-11-19 02:59:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:05,386 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:05,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:05,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:05,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:05,600 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 02:59:05,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:05,604 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (35)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:05,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:05,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:05,626 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:05,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:05,627 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:05,627 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:05,630 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:05,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-11-19 02:59:05,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:05,867 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:05,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:05,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:06,094 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-19 02:59:06,100 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (36)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:06,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:06,111 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:06,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:06,112 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:06,112 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:06,112 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:06,113 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:06,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-11-19 02:59:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:06,397 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:06,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:06,424 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:06,585 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 02:59:06,588 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (37)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:06,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:06,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:06,599 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:06,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:06,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:06,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:06,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:06,601 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:06,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-11-19 02:59:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:06,842 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:06,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:06,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:06,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:07,056 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 02:59:07,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-11-19 02:59:07,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:07,069 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:07,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:07,069 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:07,069 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:07,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:07,070 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:07,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-11-19 02:59:07,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:07,321 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:07,348 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 02:59:07,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:07,670 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 02:59:07,672 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (39)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:07,676 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:07,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:07,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:07,689 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:07,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:07,690 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:07,690 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:07,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:07,692 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:07,695 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-11-19 02:59:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:07,961 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:07,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:07,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:07,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:08,133 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 02:59:08,135 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (40)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:08,136 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:08,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:08,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:08,148 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:08,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:08,148 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:08,148 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:08,149 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:08,150 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:08,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-11-19 02:59:08,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:08,392 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:08,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:08,418 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:08,592 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 02:59:08,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:08,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:08,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:08,605 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:08,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:08,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:08,606 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:08,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:08,608 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:08,628 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-11-19 02:59:08,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:08,861 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:08,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:08,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:08,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:09,078 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 02:59:09,082 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:09,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:09,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:09,092 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:09,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:09,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:09,092 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:09,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:09,097 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:09,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-11-19 02:59:09,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:09,350 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:09,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:09,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:09,567 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 02:59:09,570 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:09,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:09,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:09,577 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:09,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:09,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:09,577 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:09,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:09,580 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:09,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-11-19 02:59:09,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:09,828 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:09,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:09,861 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:09,863 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:10,048 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 02:59:10,050 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:10,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:10,063 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:10,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:10,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:10,063 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:10,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:10,065 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:10,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-11-19 02:59:10,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:10,315 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:10,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:10,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:10,510 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 02:59:10,512 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (45)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:10,512 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:10,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:10,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:10,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:10,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:10,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:10,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:10,528 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:10,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-11-19 02:59:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:10,780 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:10,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:10,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:11,014 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 02:59:11,024 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:11,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:11,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:11,034 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:11,034 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:11,035 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:11,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:11,036 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:11,061 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-11-19 02:59:11,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:11,295 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:11,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:11,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:11,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:11,512 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 02:59:11,514 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:11,514 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (47)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:11,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:11,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:11,521 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:11,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:11,522 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:11,522 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:11,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:11,523 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:11,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-11-19 02:59:11,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:11,774 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:11,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:11,814 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:11,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:11,968 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 02:59:11,971 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:11,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:11,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:11,979 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:11,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:11,979 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:11,980 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:11,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:11,980 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:11,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-11-19 02:59:12,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:12,236 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:12,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:12,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:12,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:12,451 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 02:59:12,453 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:12,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:12,460 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:12,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:12,461 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:12,461 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:12,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:12,469 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:12,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-11-19 02:59:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:12,734 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:12,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:12,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:12,934 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 02:59:12,937 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (50)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:12,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:12,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:12,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:12,944 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:12,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:12,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:12,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:12,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:12,946 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:12,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-11-19 02:59:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:13,206 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:13,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-19 02:59:13,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:13,396 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 02:59:13,399 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (51)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:13,399 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:13,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:13,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:13,407 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:13,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:13,408 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:13,408 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:13,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:13,409 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:13,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-11-19 02:59:13,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:13,671 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:13,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:13,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:13,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:13,861 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 02:59:13,863 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (52)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:13,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:13,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:13,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:13,873 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:13,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:13,873 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:13,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:13,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:13,880 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:13,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-11-19 02:59:14,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:14,136 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:14,165 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-19 02:59:14,167 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:14,550 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 02:59:14,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-11-19 02:59:14,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:14,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:14,562 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:14,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:14,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:14,563 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:14,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:14,564 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:14,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-11-19 02:59:14,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:14,828 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:14,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:14,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:14,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:15,055 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 02:59:15,058 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:15,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:15,065 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:15,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:15,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:15,065 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:15,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:15,067 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:15,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-11-19 02:59:15,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:15,321 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:15,347 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:15,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:15,513 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 02:59:15,516 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (55)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:15,516 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:15,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:15,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:15,524 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:15,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:15,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:15,524 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:15,525 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:15,526 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:15,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-11-19 02:59:15,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:15,789 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:15,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:15,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:15,817 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:16,015 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 02:59:16,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (56)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:16,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:16,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:16,027 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:16,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:16,028 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:16,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:16,029 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:16,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-11-19 02:59:16,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:16,301 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:16,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:16,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:16,508 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 02:59:16,510 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (57)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:16,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:16,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:16,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:16,518 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:16,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:16,519 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:16,519 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:16,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:16,525 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:16,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-11-19 02:59:16,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:16,797 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:16,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:16,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:16,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:17,000 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 02:59:17,003 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:17,003 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (58)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:17,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:17,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:17,012 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:17,012 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:17,012 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:17,013 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:17,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-11-19 02:59:17,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:17,279 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:17,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:17,306 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:17,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:17,474 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 02:59:17,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (59)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:17,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:17,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:17,485 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:17,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:17,485 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:17,486 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:17,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:17,487 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:17,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-11-19 02:59:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:17,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:17,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:17,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:17,972 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 02:59:17,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:17,975 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (60)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:17,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:17,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:17,984 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:17,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:17,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:17,985 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:17,985 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:17,986 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:17,989 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-11-19 02:59:18,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:18,267 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:18,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:18,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:18,551 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 02:59:18,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:18,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:18,566 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:18,566 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:18,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:18,567 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:18,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-11-19 02:59:18,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:18,871 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:18,897 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:18,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:19,054 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 02:59:19,057 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-11-19 02:59:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:19,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:19,064 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:19,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:19,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:19,066 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:19,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:19,067 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:19,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-11-19 02:59:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:19,347 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:19,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:19,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:19,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:19,549 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 02:59:19,551 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (63)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:19,551 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:19,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:19,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:19,564 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:19,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:19,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:19,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:19,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:19,566 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:19,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-11-19 02:59:19,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:19,833 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:19,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:19,857 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:19,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:20,020 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 02:59:20,023 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (64)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:20,023 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (64)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:20,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:20,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:20,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:20,032 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:20,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:20,041 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:20,043 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-11-19 02:59:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:20,309 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:20,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:20,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:20,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:20,480 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 02:59:20,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-11-19 02:59:20,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:20,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:20,490 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:20,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:20,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:20,491 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:20,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:20,492 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:20,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-11-19 02:59:20,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:20,773 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:20,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:20,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:20,807 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:20,968 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 02:59:20,971 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (66)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:20,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-11-19 02:59:20,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:20,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:20,981 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:20,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:20,982 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:20,982 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:20,982 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:20,983 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:20,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-11-19 02:59:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:21,260 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:21,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:21,285 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:21,435 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 02:59:21,438 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (67)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:21,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:21,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:21,444 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:21,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:21,445 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:21,445 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:21,445 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:21,449 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:21,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-11-19 02:59:21,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:21,731 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:21,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:21,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:21,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:21,924 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 02:59:21,927 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (68)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:21,927 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:21,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:21,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:21,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:21,939 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:21,939 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:21,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:21,940 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:21,960 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-11-19 02:59:22,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:22,226 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:22,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:22,251 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:22,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:22,417 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 02:59:22,421 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (69)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:22,425 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (69)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:22,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:22,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:22,434 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:22,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:22,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:22,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:22,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:22,435 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:22,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-11-19 02:59:22,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:22,712 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:22,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:22,738 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:22,869 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 02:59:22,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-11-19 02:59:22,872 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (70)] Exception during sending of exit command (exit): Stream closed [2023-11-19 02:59:22,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:22,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:22,883 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:22,884 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:22,884 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:22,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:22,885 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:22,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-11-19 02:59:23,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,171 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:23,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:23,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:23,361 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 02:59:23,364 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (71)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:23,364 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (71)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:23,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:23,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:23,380 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:23,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:23,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:23,380 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:23,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:23,382 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:23,400 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-11-19 02:59:23,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,672 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:23,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:23,698 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:23,699 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:23,864 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 02:59:23,866 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (72)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:23,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (72)] Forceful destruction successful, exit code 0 [2023-11-19 02:59:23,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:23,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:23,873 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:23,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:23,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:23,874 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:23,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:23,875 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:23,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-11-19 02:59:24,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:24,154 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-19 02:59:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-19 02:59:24,181 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-19 02:59:24,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-19 02:59:24,319 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 02:59:24,322 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (73)] Exception during sending of exit command (exit): Broken pipe [2023-11-19 02:59:24,324 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (73)] Ended with exit code 0 [2023-11-19 02:59:24,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-19 02:59:24,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 67 states and 100 transitions. [2023-11-19 02:59:24,334 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 100 transitions. [2023-11-19 02:59:24,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-19 02:59:24,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-19 02:59:24,335 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-19 02:59:24,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 [2023-11-19 02:59:24,336 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-19 02:59:24,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d7db1c71-6979-4c18-b1e9-448b7493573d/bin/ukojak-verify-G8NBE6pJGL/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process