./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:58:22,995 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:58:23,068 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Default.epf [2023-11-24 22:58:23,072 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 22:58:23,073 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-11-24 22:58:23,097 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:58:23,098 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:58:23,099 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:58:23,100 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:58:23,100 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:58:23,101 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:58:23,102 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:58:23,102 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:58:23,103 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 22:58:23,103 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:58:23,104 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:58:23,104 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:58:23,105 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:58:23,106 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:58:23,106 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:58:23,107 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:58:23,107 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:58:23,108 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:58:23,108 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:58:23,109 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:58:23,109 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:58:23,110 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:23,110 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:58:23,111 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:58:23,111 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:58:23,112 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-11-24 22:58:23,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 22:58:23,112 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:58:23,113 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_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 [2023-11-24 22:58:23,371 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:58:23,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:58:23,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:58:23,411 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:58:23,411 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:58:23,413 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-24 22:58:26,446 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:58:26,693 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:58:26,693 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-24 22:58:26,701 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data/d3624bf11/0837572897bb4839bfc6de2fc83b3017/FLAGabf86c17b [2023-11-24 22:58:26,720 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data/d3624bf11/0837572897bb4839bfc6de2fc83b3017 [2023-11-24 22:58:26,723 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:58:26,724 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:58:26,726 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:26,726 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:58:26,731 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:58:26,732 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:26,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7baca57e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26, skipping insertion in model container [2023-11-24 22:58:26,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:26,768 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:58:26,931 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-24 22:58:26,936 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-24 22:58:26,937 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:26,946 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:58:26,970 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-24 22:58:26,972 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-24 22:58:26,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:26,988 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:58:26,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26 WrapperNode [2023-11-24 22:58:26,989 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:26,990 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:26,990 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:58:26,990 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:58:26,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,028 INFO L138 Inliner]: procedures = 19, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 105 [2023-11-24 22:58:27,029 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:27,029 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:58:27,029 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:58:27,030 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:58:27,039 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,039 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,046 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,046 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,053 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,056 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,058 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,060 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,062 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:58:27,063 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:58:27,063 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:58:27,063 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:58:27,064 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:26" (1/1) ... [2023-11-24 22:58:27,070 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:27,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:58:27,105 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:58:27,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:58:27,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:58:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 22:58:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:58:27,145 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-24 22:58:27,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-24 22:58:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-24 22:58:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-24 22:58:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-24 22:58:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:58:27,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:58:27,146 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 22:58:27,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:58:27,242 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:58:27,244 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:58:27,474 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:58:27,623 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:58:27,623 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:58:27,625 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:27 BoogieIcfgContainer [2023-11-24 22:58:27,625 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:58:27,626 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:58:27,626 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:58:27,637 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:58:27,637 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:27" (1/1) ... [2023-11-24 22:58:27,645 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:58:27,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:27,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 47 states and 65 transitions. [2023-11-24 22:58:27,719 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 65 transitions. [2023-11-24 22:58:27,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:58:27,733 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:27,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:27,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:28,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:58:28,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:28,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 49 states and 64 transitions. [2023-11-24 22:58:28,148 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 64 transitions. [2023-11-24 22:58:28,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2023-11-24 22:58:28,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:28,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:28,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-11-24 22:58:28,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:28,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 50 states and 66 transitions. [2023-11-24 22:58:28,289 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2023-11-24 22:58:28,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-11-24 22:58:28,291 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:28,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 22:58:28,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:28,385 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:58:28,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:28,532 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 22:58:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 22:58:28,579 WARN L476 CodeCheckObserver]: This program is UNSAFE, Check terminated with 3 iterations. [2023-11-24 22:58:28,608 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:58:28,609 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:58:28,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-24 22:58:28,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-24 22:58:28,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-24 22:58:28,610 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:58:28,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-24 22:58:28,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:58:28,611 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-24 22:58:28,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated [2023-11-24 22:58:28,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-24 22:58:28,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated [2023-11-24 22:58:28,612 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-24 22:58:28,613 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated [2023-11-24 22:58:28,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-24 22:58:28,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-24 22:58:28,614 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated [2023-11-24 22:58:28,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated [2023-11-24 22:58:28,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-24 22:58:28,615 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated [2023-11-24 22:58:28,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated [2023-11-24 22:58:28,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated [2023-11-24 22:58:28,616 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated [2023-11-24 22:58:28,622 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 24.11 10:58:28 ImpRootNode [2023-11-24 22:58:28,622 INFO L131 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2023-11-24 22:58:28,623 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-24 22:58:28,623 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-24 22:58:28,623 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-24 22:58:28,624 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:27" (3/4) ... [2023-11-24 22:58:28,626 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-24 22:58:28,628 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-24 22:58:28,629 INFO L158 Benchmark]: Toolchain (without parser) took 1904.26ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 109.6MB in the beginning and 110.8MB in the end (delta: -1.2MB). Peak memory consumption was 40.8MB. Max. memory is 16.1GB. [2023-11-24 22:58:28,629 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:28,630 INFO L158 Benchmark]: CACSL2BoogieTranslator took 263.64ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 97.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-24 22:58:28,631 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.75ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-24 22:58:28,631 INFO L158 Benchmark]: Boogie Preprocessor took 33.04ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:28,632 INFO L158 Benchmark]: RCFGBuilder took 562.30ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 73.7MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-24 22:58:28,633 INFO L158 Benchmark]: CodeCheck took 996.36ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 73.7MB in the beginning and 110.8MB in the end (delta: -37.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. [2023-11-24 22:58:28,633 INFO L158 Benchmark]: Witness Printer took 4.83ms. Allocated memory is still 182.5MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-24 22:58:28,637 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 86 NumberOfCodeBlocks, 86 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 51 ConstructedInterpolants, 0 QuantifiedInterpolants, 54 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - UnprovableResult [Line: 77]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 76. Possible FailurePath: [L68] float x = __VERIFIER_nondet_float(); [L69] float y = __VERIFIER_nondet_float(); [L70] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L59] return x != x; [L70] RET, EXPR isnan_float(x) VAL [x=2] [L70] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2] [L70] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L59] return x != x; [L70] RET, EXPR isnan_float(y) VAL [x=2, y=3] [L70] EXPR isnan_float(x) && !isnan_float(y) VAL [x=2, y=3] [L70-L71] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) VAL [x=2, y=3] [L70-L71] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L73] CALL, EXPR fmin_float(x, y) [L38] CALL, EXPR __fpclassify_float(x) VAL [\old(x)=2] [L15] __uint32_t w; VAL [\old(x)=2, x=2] [L18] ieee_float_shape_type gf_u; [L19] EXPR gf_u.value = (x) [L20] EXPR gf_u.word [L20] EXPR (w) = gf_u.word [L17-L21] { ieee_float_shape_type gf_u; gf_u.value = (x); (w) = gf_u.word; } VAL [\old(x)=2, w=2139095041, x=2] [L23] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L25-L26] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L28-L29] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L31] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L34] return 0; [L38] RET, EXPR __fpclassify_float(x) VAL [\old(x)=2, \old(y)=3, x=2, y=3] [L38] COND TRUE __fpclassify_float(x) == 0 [L39] return y; VAL [\old(x)=2, \old(y)=3, \result=3, x=2, y=3] [L73] RET, EXPR fmin_float(x, y) [L73] float res = fmin_float(x, y); [L76] CALL, EXPR isnan_float(x) VAL [\old(x)=2] [L59] return x != x; [L76] RET, EXPR isnan_float(x) VAL [res=3, x=2, y=3] [L76] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L76] CALL, EXPR isnan_float(y) VAL [\old(x)=3] [L59] return x != x; [L76] RET, EXPR isnan_float(y) VAL [res=3, x=2, y=3] [L76] EXPR isnan_float(x) && !isnan_float(y) VAL [res=3, x=2, y=3] [L76] COND TRUE isnan_float(x) && !isnan_float(y) && res != y [L77] reach_error() VAL [res=3, x=2, y=3] * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 142.6MB. Free memory is still 90.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 263.64ms. Allocated memory is still 142.6MB. Free memory was 109.3MB in the beginning and 97.8MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.75ms. Allocated memory is still 142.6MB. Free memory was 97.8MB in the beginning and 96.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.04ms. Allocated memory is still 142.6MB. Free memory was 96.0MB in the beginning and 94.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 562.30ms. Allocated memory is still 142.6MB. Free memory was 94.6MB in the beginning and 73.7MB in the end (delta: 20.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * CodeCheck took 996.36ms. Allocated memory was 142.6MB in the beginning and 182.5MB in the end (delta: 39.8MB). Free memory was 73.7MB in the beginning and 110.8MB in the end (delta: -37.1MB). Peak memory consumption was 5.2MB. Max. memory is 16.1GB. * Witness Printer took 4.83ms. Allocated memory is still 182.5MB. Free memory is still 110.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret10 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short16 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret5 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret19 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short20 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret18 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-24 22:58:28,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/config/KojakReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-24 22:58:31,387 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 22:58:31,505 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2023-11-24 22:58:31,559 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 22:58:31,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 22:58:31,561 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2023-11-24 22:58:31,562 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 22:58:31,563 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 22:58:31,564 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 22:58:31,569 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 22:58:31,570 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 22:58:31,570 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 22:58:31,571 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 22:58:31,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 22:58:31,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 22:58:31,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 22:58:31,574 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-24 22:58:31,574 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-24 22:58:31,575 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-24 22:58:31,575 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 22:58:31,576 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 22:58:31,576 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 22:58:31,577 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-11-24 22:58:31,577 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-11-24 22:58:31,578 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-11-24 22:58:31,578 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:31,578 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-11-24 22:58:31,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 22:58:31,579 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:31,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 22:58:31,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 22:58:31,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 22:58:31,582 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-11-24 22:58:31,582 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:31,582 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 22:58:31,583 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-11-24 22:58:31,583 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-24 22:58:31,583 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_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7acfe881669b731d03fc8aee9db955b71d947923db9c9de4e28fcb386b44b191 [2023-11-24 22:58:32,001 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 22:58:32,029 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 22:58:32,031 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 22:58:32,033 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 22:58:32,033 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 22:58:32,035 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/../../sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-24 22:58:35,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 22:58:35,456 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 22:58:35,457 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2023-11-24 22:58:35,464 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data/cd6fb5dd8/45b47e072b854a598eda68b016c8b78a/FLAGec981147d [2023-11-24 22:58:35,477 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/data/cd6fb5dd8/45b47e072b854a598eda68b016c8b78a [2023-11-24 22:58:35,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 22:58:35,482 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 22:58:35,483 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:35,484 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 22:58:35,488 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 22:58:35,489 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,490 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a6d0025 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35, skipping insertion in model container [2023-11-24 22:58:35,491 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,513 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 22:58:35,711 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-24 22:58:35,716 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-24 22:58:35,717 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:35,731 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 22:58:35,757 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1835,1848] [2023-11-24 22:58:35,770 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_0f748ef1-2230-4140-9935-ce435c68684d/sv-benchmarks/c/float-newlib/float_req_bl_1231.c[1994,2007] [2023-11-24 22:58:35,771 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 22:58:35,791 INFO L206 MainTranslator]: Completed translation [2023-11-24 22:58:35,792 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35 WrapperNode [2023-11-24 22:58:35,792 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 22:58:35,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:35,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 22:58:35,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 22:58:35,805 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,866 INFO L138 Inliner]: procedures = 22, calls = 26, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 96 [2023-11-24 22:58:35,866 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 22:58:35,868 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 22:58:35,868 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 22:58:35,868 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 22:58:35,877 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,878 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,899 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,899 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,908 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,925 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,928 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,931 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,935 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 22:58:35,936 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 22:58:35,936 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 22:58:35,936 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 22:58:35,937 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 10:58:35" (1/1) ... [2023-11-24 22:58:35,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-11-24 22:58:35,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/z3 [2023-11-24 22:58:35,997 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-11-24 22:58:36,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-11-24 22:58:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 22:58:36,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-24 22:58:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 22:58:36,045 INFO L130 BoogieDeclarations]: Found specification of procedure __fpclassify_float [2023-11-24 22:58:36,046 INFO L138 BoogieDeclarations]: Found implementation of procedure __fpclassify_float [2023-11-24 22:58:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2023-11-24 22:58:36,046 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2023-11-24 22:58:36,046 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-24 22:58:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 22:58:36,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 22:58:36,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2023-11-24 22:58:36,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 22:58:36,164 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 22:58:36,174 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 22:58:36,511 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 22:58:36,608 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 22:58:36,608 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-24 22:58:36,610 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:36 BoogieIcfgContainer [2023-11-24 22:58:36,610 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 22:58:36,611 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-11-24 22:58:36,611 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-11-24 22:58:36,622 INFO L274 PluginConnector]: CodeCheck initialized [2023-11-24 22:58:36,622 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 10:58:36" (1/1) ... [2023-11-24 22:58:36,631 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 22:58:36,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 46 states and 64 transitions. [2023-11-24 22:58:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 64 transitions. [2023-11-24 22:58:36,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-24 22:58:36,691 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:36,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:36,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:36,696 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:36,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-11-24 22:58:36,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:36,895 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:36,930 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 22:58:36,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 22:58:36,965 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:36,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:37,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:37,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 46 states and 61 transitions. [2023-11-24 22:58:37,035 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 61 transitions. [2023-11-24 22:58:37,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-11-24 22:58:37,037 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:37,037 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:37,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:37,041 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:37,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-11-24 22:58:37,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:37,207 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:37,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:37,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-24 22:58:37,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:37,318 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:58:37,320 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:37,330 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (3)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:37,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:37,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 47 states and 63 transitions. [2023-11-24 22:58:37,396 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 63 transitions. [2023-11-24 22:58:37,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-24 22:58:37,400 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:37,400 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:37,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:37,404 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:37,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-11-24 22:58:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:37,597 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:37,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:37,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 22:58:37,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-24 22:58:37,722 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:37,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:37,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 49 states and 65 transitions. [2023-11-24 22:58:37,784 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 65 transitions. [2023-11-24 22:58:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:37,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:37,787 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:37,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:37,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:37,819 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-11-24 22:58:38,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:38,107 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:38,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:38,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:38,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:38,829 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:39,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:39,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-24 22:58:39,970 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-24 22:58:39,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:39,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:39,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:39,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:39,974 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:39,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-11-24 22:58:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:40,291 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:40,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:40,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:40,348 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:40,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-11-24 22:58:40,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:40,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 56 states and 78 transitions. [2023-11-24 22:58:40,704 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2023-11-24 22:58:40,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:40,706 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:40,707 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:40,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:40,708 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:40,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-11-24 22:58:41,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:41,011 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:41,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:41,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:58:41,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:41,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:44,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:44,086 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:44,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:44,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:44,094 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:44,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:44,096 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:44,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-11-24 22:58:44,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:44,418 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:44,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:44,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:58:44,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:44,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:45,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:45,042 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:45,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:45,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:45,045 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:45,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:45,049 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:45,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-11-24 22:58:45,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:45,339 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:45,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:45,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:58:45,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:45,672 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:45,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:45,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:45,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:45,698 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:45,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:45,699 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:45,699 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:45,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:45,701 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:45,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-11-24 22:58:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:45,975 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:46,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:46,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 22:58:46,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:46,285 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:46,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:46,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:46,310 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:46,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:46,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:46,311 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:46,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:46,320 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:46,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-11-24 22:58:46,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:46,586 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:46,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:46,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:46,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:46,861 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:46,868 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (11)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:46,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:46,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:46,880 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:46,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:46,881 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:46,882 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:46,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:46,883 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:46,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-11-24 22:58:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:47,178 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:47,214 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:58:47,216 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:47,476 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:47,488 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:47,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:47,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:47,502 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:47,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:47,503 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:47,503 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:47,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:47,504 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:47,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-11-24 22:58:47,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:47,750 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:47,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:47,829 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:58:47,831 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:48,101 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:48,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-11-24 22:58:48,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:48,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:48,139 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:48,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:48,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:48,144 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:48,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:48,145 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:48,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-11-24 22:58:48,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:48,389 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:48,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:48,425 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:48,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:48,652 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:48,660 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:48,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:48,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:48,674 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:48,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:48,675 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:48,675 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:48,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:48,677 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:48,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-11-24 22:58:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:48,915 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:48,957 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:48,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:49,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:49,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:49,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:49,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:49,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:49,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:49,210 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:49,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-11-24 22:58:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:49,477 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:49,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:49,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:49,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:49,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:49,792 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:49,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:49,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:49,810 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:49,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:49,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:49,811 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:49,812 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:49,813 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:49,823 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-11-24 22:58:50,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:50,043 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:50,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:50,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:50,088 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:50,290 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:50,297 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-11-24 22:58:50,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:50,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:50,310 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:50,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:50,311 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:50,311 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:50,311 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:50,312 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:50,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-11-24 22:58:50,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:50,607 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:50,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:50,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:50,836 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:50,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:50,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:50,847 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:50,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:50,847 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:50,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:50,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:50,852 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:50,853 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-11-24 22:58:51,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:51,088 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:51,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:51,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:51,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:51,330 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:51,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:51,336 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (19)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:51,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:51,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:51,349 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:51,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:51,350 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:51,350 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:51,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:51,352 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:51,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-11-24 22:58:51,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:51,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:51,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:51,610 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:51,611 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:51,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:51,851 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:51,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:51,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:51,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:51,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:51,866 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:51,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:51,867 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:51,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-24 22:58:52,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:52,144 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:52,177 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:52,179 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:52,388 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:52,395 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:52,395 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:52,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:52,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:52,406 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:52,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:52,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:52,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:52,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:52,408 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:52,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-11-24 22:58:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:52,652 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:52,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:52,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:52,693 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:52,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:52,947 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-11-24 22:58:52,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:52,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:52,960 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:52,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:52,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:52,962 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:52,962 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:52,965 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:52,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-24 22:58:53,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:53,266 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:53,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:53,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:53,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:53,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:53,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:53,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:53,529 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:53,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:53,531 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:53,531 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:53,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:53,533 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:53,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-11-24 22:58:53,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:53,865 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:53,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:53,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 19 conjunts are in the unsatisfiable core [2023-11-24 22:58:53,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:54,164 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:54,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:54,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:54,181 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:54,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:54,183 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:54,184 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:54,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:54,188 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:54,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-24 22:58:54,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:54,477 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:54,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:54,532 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:54,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:54,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:54,748 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:54,748 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:54,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:54,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:54,765 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:54,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:54,769 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:54,769 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:54,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:54,773 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:54,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-11-24 22:58:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:55,039 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:55,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:58:55,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:55,307 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:55,310 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:55,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:55,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:55,320 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:55,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:55,321 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:55,321 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:55,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:55,323 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:55,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-24 22:58:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:55,608 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:55,637 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:58:55,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:55,881 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:55,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:55,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:55,893 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:55,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:55,894 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:55,895 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:55,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:55,900 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:55,912 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-11-24 22:58:56,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:56,190 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:56,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:56,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:56,230 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:56,423 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:56,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:56,428 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (28)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:56,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:56,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:56,449 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:56,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:56,450 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:56,450 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:56,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:56,452 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:56,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-24 22:58:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:56,719 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:56,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:56,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:56,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:56,984 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:56,997 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (29)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:57,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:57,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:57,015 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:57,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:57,016 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:57,016 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:57,016 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:57,017 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:57,036 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-11-24 22:58:57,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:57,320 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:57,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:57,358 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:57,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:57,537 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:57,539 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (30)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:57,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:57,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:57,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:57,549 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:57,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:57,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:57,550 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:57,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:57,551 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:57,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-24 22:58:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:57,785 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:57,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:57,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:58:57,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:58,118 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (31)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:58,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:58,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:58,140 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:58,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:58,140 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:58,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:58,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:58,142 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:58,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-11-24 22:58:58,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:58,421 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:58,455 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:58:58,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:58,679 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:58,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (32)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:58,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:58,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:58,700 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:58,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:58,701 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:58,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:58,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:58,705 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:58,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-11-24 22:58:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:58,972 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:59,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:59,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:59,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:59,230 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:59,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:59,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:59,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:59,248 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:59,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:59,249 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:59,249 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:59,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:59,250 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:59,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-11-24 22:58:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:59,511 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:58:59,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:59,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:58:59,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:58:59,713 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:58:59,716 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (34)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:58:59,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (34)] Forceful destruction successful, exit code 0 [2023-11-24 22:58:59,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:58:59,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:58:59,724 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:58:59,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:58:59,725 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:58:59,725 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:58:59,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:58:59,727 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:58:59,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-11-24 22:58:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:58:59,967 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:00,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:00,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:00,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:00,189 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:00,191 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:00,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:00,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:00,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:00,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:00,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:00,205 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:00,205 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:00,206 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:00,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-11-24 22:59:00,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:00,526 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:00,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:00,560 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:00,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:00,764 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:00,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-11-24 22:59:00,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:00,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:00,776 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:00,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:00,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:00,777 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:00,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:00,778 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:00,779 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-11-24 22:59:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:01,073 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:01,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:01,107 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:59:01,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:01,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:01,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:01,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:01,324 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:01,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:01,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:01,324 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:01,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:01,325 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:01,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-11-24 22:59:01,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:01,630 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:01,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:01,676 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:01,678 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:01,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:01,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:01,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:01,914 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:01,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:01,915 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:01,915 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:01,915 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:01,916 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:01,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-11-24 22:59:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:02,219 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:02,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:02,255 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:02,256 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:02,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:02,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:02,557 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:02,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:02,558 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:02,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:02,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:02,563 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:02,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-11-24 22:59:02,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:02,846 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:02,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:02,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:02,886 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:03,118 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:03,126 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (40)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:03,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:03,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:03,137 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:03,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:03,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:03,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:03,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:03,141 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:03,164 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-11-24 22:59:03,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:03,465 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:03,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:03,527 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:03,760 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:03,763 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:03,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:03,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:03,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:03,774 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:03,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:03,775 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:03,775 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:03,775 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:03,776 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:03,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-11-24 22:59:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:04,030 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:04,069 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:59:04,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:04,266 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (42)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:04,267 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (42)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:04,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:04,276 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:04,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:04,277 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:04,277 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:04,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:04,280 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:04,308 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-11-24 22:59:04,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:04,567 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:04,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:04,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:04,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:04,772 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:04,774 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (43)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:04,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:04,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:04,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:04,783 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:04,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:04,784 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:04,784 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:04,784 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:04,788 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:04,789 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-11-24 22:59:05,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:05,062 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:05,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:05,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-24 22:59:05,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:05,312 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:05,314 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (44)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:05,314 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (44)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:05,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:05,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:05,325 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:05,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:05,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:05,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:05,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:05,326 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:05,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-11-24 22:59:05,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:05,596 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:05,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:59:05,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:05,883 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:05,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:05,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:05,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:05,893 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:05,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:05,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:05,894 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:05,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:05,895 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:05,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-11-24 22:59:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:06,168 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:06,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:06,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:06,376 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:06,378 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (46)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:06,378 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (46)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:06,387 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:06,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:06,388 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:06,388 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:06,388 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:06,389 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:06,391 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-11-24 22:59:06,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:06,659 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:06,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:06,694 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:06,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:06,901 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:06,903 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:06,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:06,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:06,917 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:06,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:06,918 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:06,918 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:06,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:06,919 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:06,920 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-11-24 22:59:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:07,178 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:07,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:07,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:07,235 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:07,413 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:07,415 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:07,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (48)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:07,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:07,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:07,424 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:07,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:07,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:07,425 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:07,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:07,426 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:07,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-11-24 22:59:07,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:07,677 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:07,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:07,716 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:07,719 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:07,930 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:07,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-11-24 22:59:07,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:07,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:07,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:07,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:07,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:07,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:07,942 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:07,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-11-24 22:59:08,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:08,221 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:08,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:08,260 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:08,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:08,441 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:08,443 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:08,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (50)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:08,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:08,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:08,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:08,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:08,458 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:08,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:08,459 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:08,461 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-11-24 22:59:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:08,731 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:08,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:08,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:08,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:08,956 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:08,958 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (51)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:08,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:08,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:08,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:08,968 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:08,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:08,968 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:08,968 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:08,969 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:08,971 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:08,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-11-24 22:59:09,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:09,236 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:09,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:09,285 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:09,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:09,482 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:09,482 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (52)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:09,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:09,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:09,495 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:09,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:09,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:09,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:09,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:09,497 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:09,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-11-24 22:59:09,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:09,802 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:09,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:09,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:09,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:10,032 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:10,034 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (53)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:10,035 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (53)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:10,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:10,042 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:10,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:10,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:10,043 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:10,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:10,044 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:10,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-11-24 22:59:10,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:10,313 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:10,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:59:10,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:10,571 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (54)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:10,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:10,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:10,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:10,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:10,583 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:10,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:10,587 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:10,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-11-24 22:59:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:10,899 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:10,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:10,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:11,104 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:11,107 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (55)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:11,107 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:11,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:11,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:11,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:11,115 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:11,115 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:11,115 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:11,116 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:11,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-11-24 22:59:11,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:11,402 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:11,442 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:11,443 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:11,621 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:11,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-11-24 22:59:11,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:11,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:11,631 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:11,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:11,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:11,632 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:11,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:11,633 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:11,652 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-11-24 22:59:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:11,922 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:11,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:11,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:11,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:12,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:12,175 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (57)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:12,181 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (57)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:12,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:12,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:12,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:12,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:12,194 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:12,194 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:12,195 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:12,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-11-24 22:59:12,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:12,471 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:12,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:12,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:12,746 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:12,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-11-24 22:59:12,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:12,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:12,756 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:12,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:12,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:12,757 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:12,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:12,758 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:12,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-11-24 22:59:13,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:13,030 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:13,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:13,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:13,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:13,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-11-24 22:59:13,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:13,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:13,285 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:13,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:13,285 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:13,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:13,292 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:13,312 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-11-24 22:59:13,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:13,587 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:13,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:13,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:59:13,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:13,921 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:13,923 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (60)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:13,923 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (60)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:13,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:13,933 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:13,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:13,933 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:13,933 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:13,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:13,934 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:13,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-11-24 22:59:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:14,219 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:14,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:59:14,258 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:14,445 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:14,447 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (61)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:14,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:14,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:14,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:14,456 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:14,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:14,457 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:14,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:14,460 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:14,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-11-24 22:59:14,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:14,732 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:14,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:14,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-24 22:59:14,766 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:14,955 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (62)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:14,955 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (62)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:14,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:14,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:14,964 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:14,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:14,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:14,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:14,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:14,966 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:14,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-11-24 22:59:15,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:15,292 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:15,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 24 conjunts are in the unsatisfiable core [2023-11-24 22:59:15,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:15,561 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:15,564 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (63)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:15,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:15,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:15,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:15,574 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:15,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:15,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:15,574 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:15,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:15,584 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:15,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-11-24 22:59:15,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:15,912 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:15,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:15,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:15,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:16,183 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (64)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:16,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:16,194 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:16,195 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:16,195 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:16,196 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:16,209 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-11-24 22:59:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:16,544 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:16,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:16,574 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:16,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:16,781 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:16,785 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (65)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:16,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:16,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:16,794 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:16,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:16,794 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:16,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:16,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:16,796 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:16,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-11-24 22:59:17,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:17,135 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:17,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:17,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:17,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:17,362 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:17,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:17,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:17,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:17,374 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:17,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:17,374 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:17,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:17,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:17,390 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:17,390 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-11-24 22:59:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:17,749 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:17,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:17,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:18,018 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (67)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:18,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (67)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:18,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:18,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:18,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:18,030 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:18,030 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:18,030 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:18,031 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:18,033 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-11-24 22:59:18,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:18,371 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-11-24 22:59:18,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 22:59:18,415 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-24 22:59:18,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 22:59:18,592 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-24 22:59:18,595 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (68)] Exception during sending of exit command (exit): Broken pipe [2023-11-24 22:59:18,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (68)] Forceful destruction successful, exit code 0 [2023-11-24 22:59:18,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-11-24 22:59:18,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 68 states and 101 transitions. [2023-11-24 22:59:18,606 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 101 transitions. [2023-11-24 22:59:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-24 22:59:18,606 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-11-24 22:59:18,606 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-24 22:59:18,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 [2023-11-24 22:59:18,607 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-24 22:59:18,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f748ef1-2230-4140-9935-ce435c68684d/bin/ukojak-verify-afCqCEvfdi/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process