./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:51:08,049 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:51:08,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-03 01:51:08,133 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:51:08,133 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:51:08,155 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:51:08,156 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:51:08,156 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:51:08,157 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:51:08,157 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:51:08,158 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:51:08,158 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:51:08,159 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:51:08,159 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:51:08,160 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:51:08,160 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:51:08,160 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:51:08,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:51:08,161 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:51:08,162 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:51:08,162 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:51:08,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:51:08,164 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:51:08,164 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:51:08,164 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:51:08,165 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:51:08,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:51:08,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:51:08,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:51:08,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:51:08,167 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:51:08,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:51:08,168 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b [2023-12-03 01:51:08,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:51:08,424 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:51:08,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:51:08,428 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:51:08,428 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:51:08,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2023-12-03 01:51:11,161 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:51:11,421 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:51:11,422 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2023-12-03 01:51:11,440 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data/5b8fe6c01/c9072b6a78c24868874a220e47f75211/FLAG855dbd101 [2023-12-03 01:51:11,452 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data/5b8fe6c01/c9072b6a78c24868874a220e47f75211 [2023-12-03 01:51:11,454 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:51:11,455 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:51:11,456 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:51:11,457 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:51:11,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:51:11,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:51:11" (1/1) ... [2023-12-03 01:51:11,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@525f3914 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:11, skipping insertion in model container [2023-12-03 01:51:11,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:51:11" (1/1) ... [2023-12-03 01:51:11,522 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:51:11,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:51:11,941 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:51:12,026 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:51:12,067 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:51:12,074 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:51:12,075 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12 WrapperNode [2023-12-03 01:51:12,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:51:12,076 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:51:12,076 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:51:12,076 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:51:12,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,118 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,241 INFO L138 Inliner]: procedures = 177, calls = 350, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1824 [2023-12-03 01:51:12,242 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:51:12,243 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:51:12,243 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:51:12,243 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:51:12,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,270 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,271 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,326 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,371 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:51:12,371 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:51:12,371 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:51:12,372 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:51:12,372 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:51:12" (1/1) ... [2023-12-03 01:51:12,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:51:12,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:51:12,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:51:12,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:51:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:51:12,446 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:51:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 01:51:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:51:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 01:51:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:51:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 01:51:12,447 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 01:51:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:51:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:51:12,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:51:12,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:51:12,642 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:51:12,644 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:51:14,282 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:51:15,951 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:51:15,952 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-12-03 01:51:15,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:51:15 BoogieIcfgContainer [2023-12-03 01:51:15,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:51:15,955 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:51:15,955 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:51:15,965 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:51:15,965 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:51:15" (1/1) ... [2023-12-03 01:51:15,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:51:16,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:16,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 338 states and 520 transitions. [2023-12-03 01:51:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 520 transitions. [2023-12-03 01:51:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:51:16,039 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:16,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:16,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:16,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:51:16,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:16,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 338 states and 518 transitions. [2023-12-03 01:51:16,224 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 518 transitions. [2023-12-03 01:51:16,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:51:16,226 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:16,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:16,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:16,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:51:16,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:16,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 340 states and 521 transitions. [2023-12-03 01:51:16,415 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 521 transitions. [2023-12-03 01:51:16,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:51:16,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:16,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:16,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:16,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:51:16,514 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:51:16,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:51:16,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:16,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 339 states and 516 transitions. [2023-12-03 01:51:16,527 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 516 transitions. [2023-12-03 01:51:16,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:51:16,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:16,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:16,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:51:16,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:51:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:51:16,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:16,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 339 states and 512 transitions. [2023-12-03 01:51:16,628 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 512 transitions. [2023-12-03 01:51:16,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 01:51:16,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:16,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:16,733 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:51:16,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:51:16,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:51:16,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:16,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 339 states and 506 transitions. [2023-12-03 01:51:16,746 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 506 transitions. [2023-12-03 01:51:16,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:51:16,747 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:16,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:16,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:51:16,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:51:16,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:51:26,949 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:51:27,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:51:27,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 339 states and 500 transitions. [2023-12-03 01:51:27,044 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 500 transitions. [2023-12-03 01:51:27,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 01:51:27,045 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:51:27,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:51:27,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:51:27,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:51:27,294 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:51:27,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:51:37,542 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:51:47,576 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:51:57,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:07,648 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:07,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:07,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 352 states and 515 transitions. [2023-12-03 01:52:07,678 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 515 transitions. [2023-12-03 01:52:07,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 01:52:07,680 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:07,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:52:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:07,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:52:07,865 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:52:07,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:52:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:07,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 352 states and 513 transitions. [2023-12-03 01:52:07,878 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 513 transitions. [2023-12-03 01:52:07,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:52:07,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:07,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:52:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:08,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:52:08,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:52:08,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:52:08,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:08,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 352 states and 511 transitions. [2023-12-03 01:52:08,104 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 511 transitions. [2023-12-03 01:52:08,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-03 01:52:08,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:08,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:52:08,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:08,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:52:08,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:52:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:52:18,346 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:18,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:18,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 352 states and 509 transitions. [2023-12-03 01:52:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 509 transitions. [2023-12-03 01:52:18,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 01:52:18,396 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:18,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:52:18,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:52:18,692 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:52:18,695 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:52:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:52:28,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:38,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:48,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:58,897 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:52:58,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:52:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 355 states and 511 transitions. [2023-12-03 01:52:58,964 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 511 transitions. [2023-12-03 01:52:58,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 01:52:58,964 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:52:58,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:53:09,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 01:53:09,222 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 01:53:09,226 INFO L158 Benchmark]: Toolchain (without parser) took 117770.53ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 113.2MB in the beginning and 84.3MB in the end (delta: 28.9MB). Peak memory consumption was 108.6MB. Max. memory is 16.1GB. [2023-12-03 01:53:09,227 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:53:09,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 619.01ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 78.1MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-03 01:53:09,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.15ms. Allocated memory is still 151.0MB. Free memory was 78.1MB in the beginning and 113.7MB in the end (delta: -35.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-12-03 01:53:09,228 INFO L158 Benchmark]: Boogie Preprocessor took 127.80ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 102.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 01:53:09,229 INFO L158 Benchmark]: RCFGBuilder took 3582.64ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 102.4MB in the beginning and 174.1MB in the end (delta: -71.8MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2023-12-03 01:53:09,229 INFO L158 Benchmark]: CodeCheck took 113270.41ms. Allocated memory is still 230.7MB. Free memory was 174.1MB in the beginning and 84.3MB in the end (delta: 89.9MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. [2023-12-03 01:53:09,232 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 109.1MB. Free memory is still 82.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 619.01ms. Allocated memory is still 151.0MB. Free memory was 113.2MB in the beginning and 78.1MB in the end (delta: 35.1MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 166.15ms. Allocated memory is still 151.0MB. Free memory was 78.1MB in the beginning and 113.7MB in the end (delta: -35.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 127.80ms. Allocated memory is still 151.0MB. Free memory was 113.7MB in the beginning and 102.4MB in the end (delta: 11.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3582.64ms. Allocated memory was 151.0MB in the beginning and 230.7MB in the end (delta: 79.7MB). Free memory was 102.4MB in the beginning and 174.1MB in the end (delta: -71.8MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. * CodeCheck took 113270.41ms. Allocated memory is still 230.7MB. Free memory was 174.1MB in the beginning and 84.3MB in the end (delta: 89.9MB). Peak memory consumption was 88.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 01:53:09,305 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-memcleanup) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:53:11,055 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:53:11,129 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-03 01:53:11,162 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:53:11,163 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:53:11,163 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:53:11,164 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:53:11,164 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:53:11,165 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:53:11,165 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:53:11,166 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:53:11,166 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:53:11,167 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:53:11,168 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:53:11,168 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:53:11,168 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:53:11,169 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:53:11,170 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:53:11,170 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:53:11,170 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:53:11,171 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:53:11,171 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:53:11,172 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:53:11,173 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:53:11,173 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:53:11,173 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:53:11,174 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:53:11,174 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:11,174 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:53:11,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:53:11,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:53:11,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:53:11,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:53:11,177 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:53:11,177 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:11,178 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:53:11,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:53:11,178 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_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 42d34b3801344b79b388ecea52b2e670196aa6b758fe24ea6ecf5c2b8bbf579b [2023-12-03 01:53:11,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:53:11,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:53:11,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:53:11,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:53:11,475 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:53:11,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2023-12-03 01:53:14,275 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:53:14,523 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:53:14,524 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_test8-2.i [2023-12-03 01:53:14,542 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data/64365608d/1c5230d5ff4340d8a60f02dc0f54c76a/FLAGa4085523f [2023-12-03 01:53:14,557 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/data/64365608d/1c5230d5ff4340d8a60f02dc0f54c76a [2023-12-03 01:53:14,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:53:14,561 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:53:14,562 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:53:14,562 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:53:14,567 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:53:14,567 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:53:14" (1/1) ... [2023-12-03 01:53:14,569 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ac67d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:14, skipping insertion in model container [2023-12-03 01:53:14,569 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:53:14" (1/1) ... [2023-12-03 01:53:14,641 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:53:15,144 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:53:15,157 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 01:53:15,171 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:53:15,248 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:53:15,253 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:53:15,335 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:53:15,364 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:53:15,370 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:53:15,370 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15 WrapperNode [2023-12-03 01:53:15,370 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:53:15,371 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:53:15,371 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:53:15,371 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:53:15,378 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,410 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,479 INFO L138 Inliner]: procedures = 180, calls = 350, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1490 [2023-12-03 01:53:15,480 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:53:15,481 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:53:15,481 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:53:15,481 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:53:15,490 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,506 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,506 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,566 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,580 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,587 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,596 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,608 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:53:15,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:53:15,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:53:15,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:53:15,610 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:53:15" (1/1) ... [2023-12-03 01:53:15,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:53:15,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:53:15,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:53:15,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:53:15,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-03 01:53:15,677 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 01:53:15,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 01:53:15,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:53:15,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 01:53:15,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:53:15,678 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 01:53:15,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 01:53:15,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:53:15,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 01:53:15,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:53:15,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:53:15,679 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:53:15,904 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:53:15,906 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:53:30,816 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:53:31,286 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:53:31,286 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-12-03 01:53:31,288 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:53:31 BoogieIcfgContainer [2023-12-03 01:53:31,288 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:53:31,289 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:53:31,290 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:53:31,297 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:53:31,297 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:53:31" (1/1) ... [2023-12-03 01:53:31,305 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:53:31,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:31,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 338 states and 520 transitions. [2023-12-03 01:53:31,356 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 520 transitions. [2023-12-03 01:53:31,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:53:31,358 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:31,358 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:31,359 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:31,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:31,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:53:31,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:31,692 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:31,763 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:53:31,768 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:31,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:31,794 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:53:31,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:31,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 338 states and 518 transitions. [2023-12-03 01:53:31,851 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 518 transitions. [2023-12-03 01:53:31,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:53:31,852 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:31,852 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:31,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:31,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:31,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:53:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:32,167 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:32,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:32,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:53:32,293 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:32,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:32,299 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:53:32,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:32,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 337 states and 513 transitions. [2023-12-03 01:53:32,403 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 513 transitions. [2023-12-03 01:53:32,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:53:32,404 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:32,404 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:32,404 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:32,405 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:32,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 01:53:32,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:32,723 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:32,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:53:32,791 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:32,834 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:53:32,835 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:53:32,835 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:53:32,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-03 01:53:32,932 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 01:53:32,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-03 01:53:32,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:32,962 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-03 01:53:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:33,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 339 states and 516 transitions. [2023-12-03 01:53:33,269 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 516 transitions. [2023-12-03 01:53:33,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:53:33,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:33,270 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:33,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:33,271 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:33,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 01:53:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:33,587 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:33,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:53:33,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:33,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:33,710 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-03 01:53:33,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:33,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 339 states and 512 transitions. [2023-12-03 01:53:33,718 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 512 transitions. [2023-12-03 01:53:33,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 01:53:33,719 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:33,720 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:33,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:33,721 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:33,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 01:53:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:34,055 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:34,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:53:34,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:34,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 01:53:34,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:34,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 339 states and 506 transitions. [2023-12-03 01:53:34,221 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 506 transitions. [2023-12-03 01:53:34,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 01:53:34,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:34,223 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:34,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:34,224 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:34,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 01:53:34,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:34,598 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:34,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:34,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:53:34,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:34,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:34,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 01:53:35,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 339 states and 498 transitions. [2023-12-03 01:53:35,518 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 498 transitions. [2023-12-03 01:53:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 01:53:35,519 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:35,519 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:35,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:35,520 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:35,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 01:53:35,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:35,922 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:36,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:36,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:53:36,236 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:36,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:36,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-03 01:53:38,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:38,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 352 states and 513 transitions. [2023-12-03 01:53:38,139 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 513 transitions. [2023-12-03 01:53:38,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:53:38,140 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:38,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:38,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:38,141 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:38,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 01:53:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:38,545 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:38,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:38,775 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:53:38,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:38,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:38,787 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-03 01:53:38,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:38,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 352 states and 511 transitions. [2023-12-03 01:53:38,801 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 511 transitions. [2023-12-03 01:53:38,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-03 01:53:38,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:38,802 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:38,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:38,803 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:38,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 01:53:39,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:39,273 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:39,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:39,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:53:39,549 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:39,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:39,557 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 01:53:39,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:39,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 352 states and 509 transitions. [2023-12-03 01:53:39,566 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 509 transitions. [2023-12-03 01:53:39,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 01:53:39,567 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:39,567 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:39,567 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:39,568 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:39,570 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 01:53:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:40,071 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:40,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:40,351 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:53:40,354 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:53:40,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 01:53:40,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:40,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 355 states and 511 transitions. [2023-12-03 01:53:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 511 transitions. [2023-12-03 01:53:40,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 01:53:40,516 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:40,516 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:40,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:40,517 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:40,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 01:53:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:41,126 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:41,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:41,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:53:41,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:41,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:53:41,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 01:53:49,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:53:49,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:53:49,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 356 states and 512 transitions. [2023-12-03 01:53:49,527 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 512 transitions. [2023-12-03 01:53:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 01:53:49,527 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:53:49,527 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:53:49,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:53:49,528 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:53:49,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 01:53:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:50,192 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:53:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:53:50,524 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:53:50,526 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:53:50,595 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:53:50,601 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 01:54:00,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:54:00,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:00,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 357 states and 513 transitions. [2023-12-03 01:54:00,735 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 513 transitions. [2023-12-03 01:54:00,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 01:54:00,736 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:00,736 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:00,736 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:00,737 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:00,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 01:54:01,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:01,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:01,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:01,905 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:54:01,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:01,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:54:01,999 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 01:54:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:02,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 358 states and 514 transitions. [2023-12-03 01:54:02,270 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 514 transitions. [2023-12-03 01:54:02,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 01:54:02,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:02,270 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:02,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:02,271 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:02,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 01:54:03,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:03,183 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:03,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:03,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:54:03,536 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:03,621 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:54:03,628 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 01:54:13,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:54:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:13,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 359 states and 515 transitions. [2023-12-03 01:54:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 515 transitions. [2023-12-03 01:54:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 01:54:13,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:13,890 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:13,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:13,891 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:13,892 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 01:54:14,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:14,821 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:15,145 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 01:54:15,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:15,253 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:54:15,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 01:54:24,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.06s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:54:24,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:24,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 360 states and 516 transitions. [2023-12-03 01:54:24,614 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 516 transitions. [2023-12-03 01:54:24,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 01:54:24,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:24,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:24,615 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:24,616 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:24,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 01:54:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:25,541 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:25,842 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:54:25,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:25,956 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:54:25,967 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 01:54:36,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:54:36,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:36,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 361 states and 517 transitions. [2023-12-03 01:54:36,302 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2023-12-03 01:54:36,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 01:54:36,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:36,303 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:36,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:36,304 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:36,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 01:54:37,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:37,264 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:37,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:37,579 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 01:54:37,581 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:54:37,701 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 01:54:37,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:37,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 362 states and 518 transitions. [2023-12-03 01:54:37,982 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 518 transitions. [2023-12-03 01:54:37,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 01:54:37,982 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:37,983 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:37,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:37,984 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:37,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 01:54:39,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:39,088 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:39,410 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:54:39,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:39,530 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:54:39,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 01:54:39,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:39,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 363 states and 519 transitions. [2023-12-03 01:54:39,859 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 519 transitions. [2023-12-03 01:54:39,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 01:54:39,860 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:39,860 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:39,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:39,861 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:39,866 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 01:54:40,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:40,880 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:41,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:41,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 01:54:41,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:41,326 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:54:41,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 01:54:50,184 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.51s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:54:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:54:50,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 364 states and 520 transitions. [2023-12-03 01:54:50,227 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 520 transitions. [2023-12-03 01:54:50,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 01:54:50,227 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:54:50,228 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:54:50,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:54:50,228 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:54:50,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 01:54:51,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:51,349 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:54:51,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:54:51,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:54:51,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:54:51,837 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:54:51,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Forceful destruction successful, exit code 0 [2023-12-03 01:55:02,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:55:02,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:02,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 365 states and 521 transitions. [2023-12-03 01:55:02,244 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2023-12-03 01:55:02,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 01:55:02,245 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:02,245 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:02,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:02,246 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:02,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 01:55:03,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:03,237 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:03,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:03,546 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 01:55:03,548 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:55:03,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-03 01:55:04,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:04,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 366 states and 522 transitions. [2023-12-03 01:55:04,072 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 522 transitions. [2023-12-03 01:55:04,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 01:55:04,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:04,072 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:04,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:04,073 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:04,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 01:55:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:05,295 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:05,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:05,629 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:55:05,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:05,791 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:55:05,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-03 01:55:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:06,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 367 states and 523 transitions. [2023-12-03 01:55:06,222 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 523 transitions. [2023-12-03 01:55:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 01:55:06,222 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:06,222 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:06,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:06,223 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:06,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 01:55:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:07,488 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:07,840 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:55:07,842 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:08,023 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:55:08,040 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 01:55:18,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:55:18,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:18,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 368 states and 524 transitions. [2023-12-03 01:55:18,565 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 524 transitions. [2023-12-03 01:55:18,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-03 01:55:18,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:18,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:18,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:18,566 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:18,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 01:55:19,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:19,883 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:20,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:55:20,209 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:20,374 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:55:20,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 01:55:30,833 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:55:30,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:30,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 369 states and 525 transitions. [2023-12-03 01:55:30,883 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 525 transitions. [2023-12-03 01:55:30,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 01:55:30,884 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:30,884 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:30,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:30,885 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:30,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 01:55:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:32,070 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:32,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:32,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:55:32,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:32,555 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:55:32,572 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 01:55:33,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 370 states and 526 transitions. [2023-12-03 01:55:33,042 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 526 transitions. [2023-12-03 01:55:33,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-03 01:55:33,042 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:33,042 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:33,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:33,043 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:33,045 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 01:55:34,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:34,351 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:34,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:34,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:55:34,683 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:55:34,870 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 01:55:35,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:35,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 371 states and 527 transitions. [2023-12-03 01:55:35,360 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 527 transitions. [2023-12-03 01:55:35,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 01:55:35,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:35,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:35,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:35,361 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:35,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 01:55:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:36,707 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:37,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:37,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 01:55:37,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:37,284 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:55:37,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 01:55:47,091 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.21s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:55:47,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:47,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 372 states and 528 transitions. [2023-12-03 01:55:47,145 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 528 transitions. [2023-12-03 01:55:47,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 01:55:47,146 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:47,146 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:47,146 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:47,147 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:47,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 01:55:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:48,569 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:55:48,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:48,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 01:55:48,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:49,191 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:55:49,213 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 01:55:59,792 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:55:59,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:59,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 373 states and 529 transitions. [2023-12-03 01:55:59,837 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 529 transitions. [2023-12-03 01:55:59,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 01:55:59,837 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:59,837 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:55:59,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:55:59,838 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:55:59,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-03 01:56:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:01,259 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:01,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:01,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 01:56:01,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:01,842 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:56:01,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-03 01:56:02,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:02,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 374 states and 530 transitions. [2023-12-03 01:56:02,499 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 530 transitions. [2023-12-03 01:56:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 01:56:02,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:02,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:56:02,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:56:02,501 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:56:02,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-03 01:56:04,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:04,035 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:04,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 01:56:04,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:04,625 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:56:04,647 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-03 01:56:05,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:05,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 375 states and 531 transitions. [2023-12-03 01:56:05,288 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 531 transitions. [2023-12-03 01:56:05,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 01:56:05,288 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:05,288 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:56:05,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:56:05,289 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:56:05,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-03 01:56:06,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:06,843 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:07,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:07,235 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 01:56:07,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:07,493 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:56:07,518 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-03 01:56:18,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:18,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 376 states and 532 transitions. [2023-12-03 01:56:18,212 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 532 transitions. [2023-12-03 01:56:18,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 01:56:18,212 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:18,213 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:56:18,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:56:18,214 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:56:18,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-03 01:56:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:19,939 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:20,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:20,309 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 01:56:20,311 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:20,594 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:56:20,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-03 01:56:31,378 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:31,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:31,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 377 states and 533 transitions. [2023-12-03 01:56:31,419 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 533 transitions. [2023-12-03 01:56:31,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-03 01:56:31,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:31,420 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:56:31,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:56:31,421 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:56:31,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-03 01:56:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:33,281 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:33,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:33,650 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 01:56:33,652 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:33,920 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:56:33,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-03 01:56:34,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:34,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 378 states and 534 transitions. [2023-12-03 01:56:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 534 transitions. [2023-12-03 01:56:34,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 01:56:34,734 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:34,734 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:56:34,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:56:34,735 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:56:34,736 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-03 01:56:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:36,589 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:36,971 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 01:56:36,973 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:37,249 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:56:37,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-03 01:56:38,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:38,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 379 states and 535 transitions. [2023-12-03 01:56:38,074 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 535 transitions. [2023-12-03 01:56:38,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 01:56:38,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:38,074 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:56:38,074 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:56:38,075 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:56:38,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-03 01:56:39,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:39,931 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:40,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:40,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:56:40,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:56:40,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-03 01:56:51,485 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:51,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 380 states and 536 transitions. [2023-12-03 01:56:51,533 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 536 transitions. [2023-12-03 01:56:51,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-03 01:56:51,533 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:51,533 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:56:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:56:51,534 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:56:51,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-03 01:56:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:53,623 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:56:53,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:53,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:56:53,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:56:54,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-03 01:57:03,945 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:03,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:03,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 381 states and 537 transitions. [2023-12-03 01:57:03,995 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 537 transitions. [2023-12-03 01:57:03,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 01:57:03,995 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:03,996 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:57:03,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:57:03,996 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:57:03,997 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-03 01:57:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:05,974 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:57:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:06,354 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:57:06,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:57:06,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-03 01:57:07,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:07,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 382 states and 538 transitions. [2023-12-03 01:57:07,565 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 538 transitions. [2023-12-03 01:57:07,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-03 01:57:07,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:07,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:57:07,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:57:07,566 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:57:07,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-03 01:57:09,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:09,678 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:57:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:10,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:57:10,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:10,409 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:57:10,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-03 01:57:11,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 383 states and 539 transitions. [2023-12-03 01:57:11,397 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 539 transitions. [2023-12-03 01:57:11,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 01:57:11,398 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:11,398 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:57:11,398 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:57:11,399 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:57:11,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-03 01:57:13,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:13,533 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:57:13,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:13,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:57:13,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:14,229 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:57:14,261 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-03 01:57:25,133 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:25,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:25,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 384 states and 540 transitions. [2023-12-03 01:57:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 540 transitions. [2023-12-03 01:57:25,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-03 01:57:25,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:25,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:57:25,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:57:25,178 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:57:25,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-03 01:57:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:27,389 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:57:27,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:27,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 01:57:27,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:28,137 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:57:28,170 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-03 01:57:39,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:39,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:39,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 385 states and 541 transitions. [2023-12-03 01:57:39,271 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 541 transitions. [2023-12-03 01:57:39,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 01:57:39,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:39,271 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:57:39,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:57:39,272 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:57:39,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-03 01:57:41,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:41,487 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:57:41,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:41,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:57:41,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:42,224 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:57:42,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-03 01:57:43,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:43,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 386 states and 542 transitions. [2023-12-03 01:57:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 542 transitions. [2023-12-03 01:57:43,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 01:57:43,236 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:43,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:57:43,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:57:43,237 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:57:43,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-03 01:57:45,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:45,427 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:57:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:45,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 01:57:45,851 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:46,229 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:57:46,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2023-12-03 01:57:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:47,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 387 states and 543 transitions. [2023-12-03 01:57:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 543 transitions. [2023-12-03 01:57:47,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-03 01:57:47,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:47,383 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:57:47,383 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:57:47,384 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:57:47,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-03 01:57:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:49,719 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:57:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:50,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 01:57:50,126 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:50,541 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:57:50,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-03 01:58:00,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:00,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:00,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 388 states and 544 transitions. [2023-12-03 01:58:00,356 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 544 transitions. [2023-12-03 01:58:00,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-03 01:58:00,357 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:00,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:00,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:58:00,358 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:58:00,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-03 01:58:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:02,673 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:58:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:03,096 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 01:58:03,098 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:03,501 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:58:03,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2023-12-03 01:58:14,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:14,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:14,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 389 states and 545 transitions. [2023-12-03 01:58:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 545 transitions. [2023-12-03 01:58:14,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-03 01:58:14,783 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:14,783 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:14,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:58:14,784 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:58:14,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-03 01:58:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:17,180 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:58:17,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:17,606 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 01:58:17,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:17,976 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 01:58:18,015 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-03 01:58:19,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:19,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 390 states and 546 transitions. [2023-12-03 01:58:19,264 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 546 transitions. [2023-12-03 01:58:19,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 01:58:19,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:19,264 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:19,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:58:19,265 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:58:19,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-03 01:58:21,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:21,818 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:58:22,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:22,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 01:58:22,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:22,703 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 01:58:22,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-03 01:58:23,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:23,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 391 states and 547 transitions. [2023-12-03 01:58:23,931 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 547 transitions. [2023-12-03 01:58:23,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 01:58:23,931 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:23,931 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:58:23,932 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:58:23,933 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-03 01:58:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:26,736 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:58:27,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:27,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 01:58:27,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:27,552 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 01:58:27,577 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-03 01:58:38,879 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:38,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:38,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 392 states and 548 transitions. [2023-12-03 01:58:38,925 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 548 transitions. [2023-12-03 01:58:38,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 01:58:38,926 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:38,926 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:38,926 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:58:38,927 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:58:38,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-03 01:58:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:41,583 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:58:41,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:42,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 01:58:42,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:42,471 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-03 01:58:42,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-03 01:58:53,830 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:53,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:53,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 393 states and 549 transitions. [2023-12-03 01:58:53,881 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 549 transitions. [2023-12-03 01:58:53,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 01:58:53,882 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:53,882 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:53,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:58:53,882 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:58:53,883 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-03 01:58:56,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:56,567 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:58:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:57,017 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 01:58:57,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:57,481 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 01:58:57,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-03 01:58:58,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:58,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 394 states and 550 transitions. [2023-12-03 01:58:58,891 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 550 transitions. [2023-12-03 01:58:58,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-03 01:58:58,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:58,892 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:58:58,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:58:58,893 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:58:58,893 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-03 01:59:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:01,811 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:59:02,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:02,246 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 01:59:02,248 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 01:59:02,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-03 01:59:04,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:04,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 395 states and 551 transitions. [2023-12-03 01:59:04,161 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 551 transitions. [2023-12-03 01:59:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 01:59:04,161 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:04,161 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:04,162 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:59:04,162 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:59:04,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-03 01:59:07,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:07,253 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:59:07,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:07,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 01:59:07,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:08,160 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 01:59:08,189 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-03 01:59:19,657 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:59:19,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:19,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 396 states and 552 transitions. [2023-12-03 01:59:19,713 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 552 transitions. [2023-12-03 01:59:19,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-03 01:59:19,714 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:19,714 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:19,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:59:19,715 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:59:19,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-03 01:59:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:22,765 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:59:23,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:23,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 01:59:23,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:23,707 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-03 01:59:23,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-03 01:59:35,222 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:59:35,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:35,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 397 states and 553 transitions. [2023-12-03 01:59:35,269 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 553 transitions. [2023-12-03 01:59:35,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 01:59:35,270 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:35,270 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:35,270 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:59:35,271 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:59:35,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-03 01:59:38,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:38,427 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:59:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:38,887 INFO L262 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 01:59:38,889 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:39,415 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 01:59:39,443 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Forceful destruction successful, exit code 0 [2023-12-03 01:59:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:40,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 398 states and 554 transitions. [2023-12-03 01:59:40,928 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 554 transitions. [2023-12-03 01:59:40,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-03 01:59:40,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:40,928 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:40,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:59:40,929 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:59:40,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-03 01:59:44,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:44,071 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:59:44,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:44,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 01:59:44,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:45,017 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 01:59:45,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-03 01:59:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:46,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 399 states and 555 transitions. [2023-12-03 01:59:46,601 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 555 transitions. [2023-12-03 01:59:46,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 01:59:46,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:46,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:46,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:59:46,603 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:59:46,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-03 01:59:49,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:49,589 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:59:50,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:50,060 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 01:59:50,062 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:50,636 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 01:59:50,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-03 02:00:02,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:00:02,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:02,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 400 states and 556 transitions. [2023-12-03 02:00:02,390 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 556 transitions. [2023-12-03 02:00:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 02:00:02,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:02,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:02,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:02,391 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:02,392 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-03 02:00:05,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:05,831 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:06,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:06,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 02:00:06,362 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 02:00:07,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-03 02:00:18,729 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:00:18,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:18,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 401 states and 557 transitions. [2023-12-03 02:00:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 557 transitions. [2023-12-03 02:00:18,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-03 02:00:18,787 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:18,787 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:18,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:18,788 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:18,790 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-03 02:00:22,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:22,092 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:22,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 02:00:22,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:23,160 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 02:00:23,191 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-03 02:00:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:24,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 402 states and 558 transitions. [2023-12-03 02:00:24,899 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 558 transitions. [2023-12-03 02:00:24,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-03 02:00:24,899 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:24,899 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:24,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:24,900 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:24,900 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-03 02:00:27,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:27,943 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:28,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:28,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 02:00:28,420 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:29,005 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 02:00:29,036 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-03 02:00:30,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:30,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 403 states and 559 transitions. [2023-12-03 02:00:30,822 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 559 transitions. [2023-12-03 02:00:30,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-03 02:00:30,822 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:30,822 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:30,822 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:30,823 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:30,824 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-03 02:00:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:34,586 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:35,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 02:00:35,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:35,716 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 02:00:35,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-03 02:00:43,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:00:43,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:43,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 404 states and 560 transitions. [2023-12-03 02:00:43,990 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 560 transitions. [2023-12-03 02:00:43,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-03 02:00:43,991 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:43,991 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:43,991 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:43,992 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:43,993 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-03 02:00:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:47,762 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:48,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:48,240 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 02:00:48,242 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 02:00:48,935 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-03 02:01:00,742 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:00,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:00,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 405 states and 561 transitions. [2023-12-03 02:01:00,794 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 561 transitions. [2023-12-03 02:01:00,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-03 02:01:00,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:00,795 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:00,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:00,796 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:00,796 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-03 02:01:04,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:04,492 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:04,955 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 02:01:04,957 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-03 02:01:05,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-03 02:01:07,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:07,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 406 states and 562 transitions. [2023-12-03 02:01:07,618 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 562 transitions. [2023-12-03 02:01:07,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 02:01:07,619 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:07,619 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:07,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:07,620 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:07,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-03 02:01:11,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:11,535 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:12,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:12,040 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 02:01:12,042 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:12,703 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-03 02:01:12,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-03 02:01:14,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:14,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 407 states and 563 transitions. [2023-12-03 02:01:14,826 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 563 transitions. [2023-12-03 02:01:14,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 02:01:14,826 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:14,826 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:14,826 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:14,827 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:14,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-03 02:01:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:18,919 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:19,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:19,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 02:01:19,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:20,073 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-03 02:01:20,109 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-03 02:01:32,122 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:32,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:32,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 408 states and 564 transitions. [2023-12-03 02:01:32,179 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 564 transitions. [2023-12-03 02:01:32,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-03 02:01:32,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:32,180 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:32,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:32,180 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:32,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-03 02:01:36,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:36,325 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:36,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 02:01:36,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:37,502 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-03 02:01:37,538 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-03 02:01:43,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:43,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:43,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 409 states and 565 transitions. [2023-12-03 02:01:43,487 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 565 transitions. [2023-12-03 02:01:43,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-03 02:01:43,487 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:43,487 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:43,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:43,488 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:43,489 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-03 02:01:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:47,595 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:48,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 02:01:48,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:48,879 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-03 02:01:48,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Forceful destruction successful, exit code 0 [2023-12-03 02:01:51,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:51,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 410 states and 566 transitions. [2023-12-03 02:01:51,004 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 566 transitions. [2023-12-03 02:01:51,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-03 02:01:51,004 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:51,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:51,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:51,005 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:51,006 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-03 02:01:55,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:55,193 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:55,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 02:01:55,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:56,416 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-03 02:01:56,453 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-03 02:01:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 411 states and 567 transitions. [2023-12-03 02:01:58,654 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 567 transitions. [2023-12-03 02:01:58,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-03 02:01:58,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:58,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:58,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:58,655 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:58,656 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-03 02:02:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:02,895 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:03,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:03,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 02:02:03,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:04,203 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-03 02:02:04,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-03 02:02:16,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:02:16,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:16,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 412 states and 568 transitions. [2023-12-03 02:02:16,553 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 568 transitions. [2023-12-03 02:02:16,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-03 02:02:16,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:16,553 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:16,553 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:16,554 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:16,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-03 02:02:21,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:21,043 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:21,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:21,542 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-03 02:02:21,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:22,292 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-03 02:02:22,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Forceful destruction successful, exit code 0 [2023-12-03 02:02:31,363 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:02:31,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:31,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 413 states and 569 transitions. [2023-12-03 02:02:31,428 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 569 transitions. [2023-12-03 02:02:31,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-03 02:02:31,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:31,428 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:31,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:31,429 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:31,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-12-03 02:02:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:35,863 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:36,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:36,362 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 02:02:36,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-03 02:02:37,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-12-03 02:02:39,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:39,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 414 states and 570 transitions. [2023-12-03 02:02:39,591 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 570 transitions. [2023-12-03 02:02:39,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-03 02:02:39,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:39,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:39,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:39,593 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:39,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-12-03 02:02:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:43,949 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:44,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:44,548 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-03 02:02:44,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:45,335 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-03 02:02:45,376 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Ended with exit code 0 [2023-12-03 02:02:47,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 415 states and 571 transitions. [2023-12-03 02:02:47,941 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 571 transitions. [2023-12-03 02:02:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-03 02:02:47,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:47,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:47,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:47,942 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:47,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-12-03 02:02:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:52,796 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:53,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:53,284 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 02:02:53,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:54,085 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-03 02:02:54,127 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2023-12-03 02:03:06,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:03:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:06,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 416 states and 572 transitions. [2023-12-03 02:03:06,824 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 572 transitions. [2023-12-03 02:03:06,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-03 02:03:06,825 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:06,825 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:06,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:06,826 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:06,826 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-12-03 02:03:11,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:11,430 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:11,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:11,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 02:03:11,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:12,796 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-03 02:03:12,840 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Ended with exit code 0 [2023-12-03 02:03:21,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.85s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:03:21,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:21,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 417 states and 573 transitions. [2023-12-03 02:03:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 573 transitions. [2023-12-03 02:03:21,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-03 02:03:21,204 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:21,204 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:21,204 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:21,205 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:21,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2023-12-03 02:03:26,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:26,212 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:26,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:26,790 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 02:03:26,792 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:27,646 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-03 02:03:27,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Ended with exit code 0 [2023-12-03 02:03:30,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:30,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 418 states and 574 transitions. [2023-12-03 02:03:30,295 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 574 transitions. [2023-12-03 02:03:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-03 02:03:30,295 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:30,295 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:30,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:30,296 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:30,297 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2023-12-03 02:03:35,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:35,527 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:36,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 02:03:36,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:36,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-03 02:03:36,925 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Ended with exit code 0 [2023-12-03 02:03:39,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:39,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 419 states and 575 transitions. [2023-12-03 02:03:39,686 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 575 transitions. [2023-12-03 02:03:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-03 02:03:39,686 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:39,686 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:39,686 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:39,687 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:39,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2023-12-03 02:03:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:44,537 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:45,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:45,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-03 02:03:45,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-03 02:03:45,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2023-12-03 02:03:48,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 420 states and 576 transitions. [2023-12-03 02:03:48,888 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 576 transitions. [2023-12-03 02:03:48,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-03 02:03:48,888 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:48,889 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:48,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:48,890 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:48,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2023-12-03 02:03:54,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:54,002 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:54,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:54,552 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-03 02:03:54,554 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:55,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-03 02:03:55,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Ended with exit code 0 [2023-12-03 02:03:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:58,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 421 states and 577 transitions. [2023-12-03 02:03:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 577 transitions. [2023-12-03 02:03:58,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-03 02:03:58,438 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:58,438 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:58,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:58,439 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:58,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2023-12-03 02:04:03,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:03,518 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:04,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-03 02:04:04,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:04,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-03 02:04:05,036 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Forceful destruction successful, exit code 0 [2023-12-03 02:04:17,918 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:04:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 422 states and 578 transitions. [2023-12-03 02:04:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 578 transitions. [2023-12-03 02:04:17,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-03 02:04:17,977 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:17,977 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:17,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:17,978 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:17,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Waiting until timeout for monitored process [2023-12-03 02:04:23,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:23,366 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:23,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-03 02:04:23,895 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:24,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-03 02:04:24,875 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Ended with exit code 0 [2023-12-03 02:04:37,796 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:04:37,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:37,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 423 states and 579 transitions. [2023-12-03 02:04:37,855 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 579 transitions. [2023-12-03 02:04:37,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-03 02:04:37,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:37,855 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:37,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:37,856 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:37,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2023-12-03 02:04:43,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:43,249 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:43,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:43,798 INFO L262 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-03 02:04:43,801 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:44,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-03 02:04:44,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Forceful destruction successful, exit code 0 [2023-12-03 02:04:47,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:47,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 424 states and 580 transitions. [2023-12-03 02:04:47,887 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 580 transitions. [2023-12-03 02:04:47,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-03 02:04:47,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:47,887 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:47,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:47,888 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:47,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Waiting until timeout for monitored process [2023-12-03 02:04:52,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:52,970 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:53,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:53,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 02:04:53,488 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:54,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-03 02:04:54,499 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Ended with exit code 0 [2023-12-03 02:04:57,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:57,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 425 states and 581 transitions. [2023-12-03 02:04:57,597 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 581 transitions. [2023-12-03 02:04:57,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-03 02:04:57,598 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:57,598 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:57,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:57,598 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:57,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2023-12-03 02:05:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:03,077 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:05:03,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:03,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-03 02:05:03,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:05:04,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2023-12-03 02:05:04,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Ended with exit code 0 [2023-12-03 02:05:17,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:05:17,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:05:17,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 426 states and 582 transitions. [2023-12-03 02:05:17,790 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 582 transitions. [2023-12-03 02:05:17,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-03 02:05:17,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:05:17,790 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:05:17,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:05:17,791 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:05:17,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (83)] Waiting until timeout for monitored process [2023-12-03 02:05:23,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:23,472 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:05:24,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:24,053 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 02:05:24,055 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:05:25,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1296 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2023-12-03 02:05:25,139 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12fd2f9-df9a-40b4-ae09-f3d1fd83941a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (83)] Ended with exit code 0