./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 05:00:14,074 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 05:00:14,135 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-03 05:00:14,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 05:00:14,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 05:00:14,160 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 05:00:14,161 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 05:00:14,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 05:00:14,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 05:00:14,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 05:00:14,163 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 05:00:14,164 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 05:00:14,164 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 05:00:14,165 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 05:00:14,166 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 05:00:14,166 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 05:00:14,167 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 05:00:14,167 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 05:00:14,168 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 05:00:14,168 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 05:00:14,169 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 05:00:14,169 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 05:00:14,170 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 05:00:14,170 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 05:00:14,171 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 05:00:14,171 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 05:00:14,172 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 05:00:14,172 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:00:14,173 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 05:00:14,173 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 05:00:14,174 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 05:00:14,174 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 05:00:14,174 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_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2023-12-03 05:00:14,400 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 05:00:14,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 05:00:14,423 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 05:00:14,424 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 05:00:14,424 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 05:00:14,425 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-12-03 05:00:17,205 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 05:00:17,454 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 05:00:17,455 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-12-03 05:00:17,473 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data/34f47b5ac/3fca17d5a9d34b2f95ddaa4253a56977/FLAGa2a38f0e3 [2023-12-03 05:00:17,488 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data/34f47b5ac/3fca17d5a9d34b2f95ddaa4253a56977 [2023-12-03 05:00:17,490 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 05:00:17,491 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 05:00:17,493 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 05:00:17,493 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 05:00:17,498 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 05:00:17,499 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:00:17" (1/1) ... [2023-12-03 05:00:17,500 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e994bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:17, skipping insertion in model container [2023-12-03 05:00:17,500 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:00:17" (1/1) ... [2023-12-03 05:00:17,576 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 05:00:18,043 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:00:18,053 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 05:00:18,139 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:00:18,173 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 05:00:18,181 INFO L206 MainTranslator]: Completed translation [2023-12-03 05:00:18,181 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18 WrapperNode [2023-12-03 05:00:18,181 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 05:00:18,183 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 05:00:18,183 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 05:00:18,183 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 05:00:18,190 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,221 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,291 INFO L138 Inliner]: procedures = 177, calls = 350, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1824 [2023-12-03 05:00:18,292 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 05:00:18,292 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 05:00:18,292 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 05:00:18,293 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 05:00:18,302 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,314 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,314 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,362 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,403 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,410 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,433 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 05:00:18,434 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 05:00:18,434 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 05:00:18,434 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 05:00:18,435 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:00:18" (1/1) ... [2023-12-03 05:00:18,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:00:18,455 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 05:00:18,468 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 05:00:18,477 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 05:00:18,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 05:00:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 05:00:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 05:00:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 05:00:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 05:00:18,509 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 05:00:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 05:00:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 05:00:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 05:00:18,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 05:00:18,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 05:00:18,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 05:00:18,725 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 05:00:18,728 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 05:00:20,360 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 05:00:21,924 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 05:00:21,924 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-12-03 05:00:21,926 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:00:21 BoogieIcfgContainer [2023-12-03 05:00:21,926 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 05:00:21,927 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 05:00:21,927 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 05:00:21,937 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 05:00:21,937 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:00:21" (1/1) ... [2023-12-03 05:00:21,946 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 05:00:22,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:22,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 338 states and 520 transitions. [2023-12-03 05:00:22,011 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 520 transitions. [2023-12-03 05:00:22,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:00:22,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:22,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:00:22,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:22,178 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 05:00:22,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 338 states and 518 transitions. [2023-12-03 05:00:22,207 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 518 transitions. [2023-12-03 05:00:22,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 05:00:22,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:22,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:00:22,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:22,385 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 05:00:22,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:22,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 340 states and 521 transitions. [2023-12-03 05:00:22,424 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 521 transitions. [2023-12-03 05:00:22,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 05:00:22,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:22,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:00:22,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:22,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:00:22,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:22,527 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 05:00:22,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 339 states and 516 transitions. [2023-12-03 05:00:22,534 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 516 transitions. [2023-12-03 05:00:22,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 05:00:22,536 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:22,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:00:22,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:22,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:00:22,631 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:22,633 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 05:00:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:22,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 339 states and 512 transitions. [2023-12-03 05:00:22,640 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 512 transitions. [2023-12-03 05:00:22,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 05:00:22,642 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:22,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:00:22,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:22,746 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:00:22,748 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:22,752 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 05:00:22,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:22,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 339 states and 506 transitions. [2023-12-03 05:00:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 506 transitions. [2023-12-03 05:00:22,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 05:00:22,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:22,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:00:22,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:22,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:00:22,944 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:22,947 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 05:00:32,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:00:33,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:00:33,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 339 states and 500 transitions. [2023-12-03 05:00:33,066 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 500 transitions. [2023-12-03 05:00:33,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 05:00:33,067 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:00:33,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:00:33,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:00:33,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 05:00:33,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:00:33,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 05:00:43,623 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:00:53,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:01:03,690 WARN L539 Checker$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 05:01:13,720 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 05:01:13,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:01:13,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 352 states and 515 transitions. [2023-12-03 05:01:13,756 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 515 transitions. [2023-12-03 05:01:13,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 05:01:13,757 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:01:13,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:01:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:13,942 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:01:13,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:01:13,950 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 05:01:13,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:01:13,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 352 states and 513 transitions. [2023-12-03 05:01:13,959 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 513 transitions. [2023-12-03 05:01:13,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 05:01:13,960 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:01:13,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:01:14,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:14,172 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:01:14,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:01:14,178 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 05:01:14,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:01:14,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 352 states and 511 transitions. [2023-12-03 05:01:14,189 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 511 transitions. [2023-12-03 05:01:14,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-03 05:01:14,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:01:14,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:01:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:14,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:01:14,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:01:14,407 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 05:01:24,418 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 05:01:24,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:01:24,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 352 states and 509 transitions. [2023-12-03 05:01:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 509 transitions. [2023-12-03 05:01:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 05:01:24,458 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:01:24,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:01:24,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:01:24,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 05:01:24,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:01:24,813 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 05:01:34,831 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:01:44,892 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:01:54,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 05:02:04,968 WARN L539 Checker$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 05:02:05,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:05,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 355 states and 511 transitions. [2023-12-03 05:02:05,028 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 511 transitions. [2023-12-03 05:02:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 05:02:05,029 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:05,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 05:02:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 05:02:15,293 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 05:02:15,296 INFO L158 Benchmark]: Toolchain (without parser) took 117804.21ms. Allocated memory was 148.9MB in the beginning and 222.3MB in the end (delta: 73.4MB). Free memory was 110.3MB in the beginning and 84.1MB in the end (delta: 26.2MB). Peak memory consumption was 101.7MB. Max. memory is 16.1GB. [2023-12-03 05:02:15,296 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 148.9MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 05:02:15,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.03ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 75.1MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-03 05:02:15,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.25ms. Allocated memory is still 148.9MB. Free memory was 75.1MB in the beginning and 64.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 05:02:15,298 INFO L158 Benchmark]: Boogie Preprocessor took 140.89ms. Allocated memory is still 148.9MB. Free memory was 64.2MB in the beginning and 110.8MB in the end (delta: -46.6MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2023-12-03 05:02:15,299 INFO L158 Benchmark]: RCFGBuilder took 3492.23ms. Allocated memory was 148.9MB in the beginning and 222.3MB in the end (delta: 73.4MB). Free memory was 110.8MB in the beginning and 80.8MB in the end (delta: 30.0MB). Peak memory consumption was 107.6MB. Max. memory is 16.1GB. [2023-12-03 05:02:15,299 INFO L158 Benchmark]: CodeCheck took 113368.11ms. Allocated memory is still 222.3MB. Free memory was 80.8MB in the beginning and 84.1MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 05:02:15,301 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 0.15ms. Allocated memory is still 148.9MB. Free memory is still 121.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.03ms. Allocated memory is still 148.9MB. Free memory was 109.8MB in the beginning and 75.1MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.25ms. Allocated memory is still 148.9MB. Free memory was 75.1MB in the beginning and 64.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 140.89ms. Allocated memory is still 148.9MB. Free memory was 64.2MB in the beginning and 110.8MB in the end (delta: -46.6MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. * RCFGBuilder took 3492.23ms. Allocated memory was 148.9MB in the beginning and 222.3MB in the end (delta: 73.4MB). Free memory was 110.8MB in the beginning and 80.8MB in the end (delta: 30.0MB). Peak memory consumption was 107.6MB. Max. memory is 16.1GB. * CodeCheck took 113368.11ms. Allocated memory is still 222.3MB. Free memory was 80.8MB in the beginning and 84.1MB in the end (delta: -3.3MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 05:02:15,383 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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 dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 05:02:17,229 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 05:02:17,307 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-03 05:02:17,340 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 05:02:17,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 05:02:17,342 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 05:02:17,343 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 05:02:17,343 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 05:02:17,344 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 05:02:17,345 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 05:02:17,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 05:02:17,346 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 05:02:17,346 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 05:02:17,347 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 05:02:17,347 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 05:02:17,348 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 05:02:17,348 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 05:02:17,349 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 05:02:17,349 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 05:02:17,350 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 05:02:17,351 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 05:02:17,351 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 05:02:17,352 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 05:02:17,352 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 05:02:17,353 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 05:02:17,353 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 05:02:17,353 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 05:02:17,354 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:17,354 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 05:02:17,355 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 05:02:17,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:02:17,356 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 05:02:17,356 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 05:02:17,356 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 05:02:17,356 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:17,357 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 05:02:17,357 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 05:02:17,357 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_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dfe9cedb3fb732c747a1ef802da6fccda86efe7de6f5d2fc74063f23f28dc4dd [2023-12-03 05:02:17,665 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 05:02:17,685 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 05:02:17,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 05:02:17,689 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 05:02:17,689 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 05:02:17,690 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-12-03 05:02:20,432 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 05:02:20,725 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 05:02:20,726 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test8-2.i [2023-12-03 05:02:20,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data/798fbaffb/def3c47511014ac292ef305bce7c0729/FLAGbaceeeae9 [2023-12-03 05:02:20,760 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/data/798fbaffb/def3c47511014ac292ef305bce7c0729 [2023-12-03 05:02:20,762 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 05:02:20,764 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 05:02:20,766 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 05:02:20,766 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 05:02:20,771 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 05:02:20,772 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:02:20" (1/1) ... [2023-12-03 05:02:20,773 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d6f42e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:20, skipping insertion in model container [2023-12-03 05:02:20,773 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 05:02:20" (1/1) ... [2023-12-03 05:02:20,847 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 05:02:21,378 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:02:21,391 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 05:02:21,407 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 05:02:21,503 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:02:21,507 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 05:02:21,591 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 05:02:21,620 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 05:02:21,626 INFO L206 MainTranslator]: Completed translation [2023-12-03 05:02:21,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21 WrapperNode [2023-12-03 05:02:21,626 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 05:02:21,627 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 05:02:21,627 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 05:02:21,627 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 05:02:21,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,670 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,741 INFO L138 Inliner]: procedures = 180, calls = 350, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1490 [2023-12-03 05:02:21,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 05:02:21,742 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 05:02:21,742 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 05:02:21,742 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 05:02:21,750 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,751 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,766 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,767 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,826 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,840 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,847 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 05:02:21,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 05:02:21,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 05:02:21,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 05:02:21,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 05:02:21" (1/1) ... [2023-12-03 05:02:21,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 05:02:21,887 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 05:02:21,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 05:02:21,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 05:02:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-03 05:02:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 05:02:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 05:02:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 05:02:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 05:02:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 05:02:21,938 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 05:02:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 05:02:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 05:02:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 05:02:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 05:02:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 05:02:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 05:02:22,144 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 05:02:22,147 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 05:02:36,714 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 05:02:37,184 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 05:02:37,184 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-12-03 05:02:37,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:02:37 BoogieIcfgContainer [2023-12-03 05:02:37,186 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 05:02:37,187 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 05:02:37,188 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 05:02:37,197 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 05:02:37,197 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 05:02:37" (1/1) ... [2023-12-03 05:02:37,206 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 05:02:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 338 states and 520 transitions. [2023-12-03 05:02:37,269 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 520 transitions. [2023-12-03 05:02:37,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 05:02:37,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:37,272 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:37,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:37,273 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:37,276 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 05:02:37,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:37,593 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:37,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:02:37,665 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:37,684 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 05:02:37,691 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 05:02:37,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 338 states and 518 transitions. [2023-12-03 05:02:37,743 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 518 transitions. [2023-12-03 05:02:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 05:02:37,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:37,745 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:37,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:37,746 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:37,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 05:02:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:38,118 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:38,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:38,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:02:38,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:38,242 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 05:02:38,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 05:02:38,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:38,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 337 states and 513 transitions. [2023-12-03 05:02:38,392 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 513 transitions. [2023-12-03 05:02:38,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 05:02:38,393 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:38,394 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:38,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:38,395 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:38,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 05:02:38,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:38,704 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:38,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:38,771 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 05:02:38,774 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:38,820 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 05:02:38,820 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 05:02:38,821 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 05:02:38,833 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 05:02:38,919 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 05:02:38,919 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 05:02:38,942 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 05:02:38,946 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-03 05:02:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 339 states and 516 transitions. [2023-12-03 05:02:39,256 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 516 transitions. [2023-12-03 05:02:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 05:02:39,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:39,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:39,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:39,259 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:39,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 05:02:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:39,524 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:39,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:39,628 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:02:39,630 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:39,632 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 05:02:39,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 05:02:39,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:39,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 339 states and 512 transitions. [2023-12-03 05:02:39,643 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 512 transitions. [2023-12-03 05:02:39,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 05:02:39,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:39,645 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:39,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:39,646 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:39,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 05:02:39,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:39,949 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:40,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:40,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:02:40,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:40,090 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 05:02:40,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 05:02:40,094 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 05:02:40,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:40,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 339 states and 506 transitions. [2023-12-03 05:02:40,102 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 506 transitions. [2023-12-03 05:02:40,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-03 05:02:40,103 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:40,104 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:40,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:40,105 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:40,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 05:02:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:40,469 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:40,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:02:40,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:40,645 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 05:02:40,649 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 05:02:41,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:41,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 339 states and 498 transitions. [2023-12-03 05:02:41,404 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 498 transitions. [2023-12-03 05:02:41,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-03 05:02:41,405 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:41,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:41,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:41,406 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:41,407 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 05:02:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:41,818 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:42,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:42,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 05:02:42,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:42,264 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 05:02:42,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 05:02:43,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:43,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 352 states and 513 transitions. [2023-12-03 05:02:43,965 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 513 transitions. [2023-12-03 05:02:43,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 05:02:43,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:43,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:43,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:43,967 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:43,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 05:02:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:44,373 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:44,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:44,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:02:44,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:44,578 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 05:02:44,583 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 05:02:44,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:44,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 352 states and 511 transitions. [2023-12-03 05:02:44,596 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 511 transitions. [2023-12-03 05:02:44,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-03 05:02:44,597 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:44,598 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:44,598 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:44,599 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:44,600 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 05:02:45,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:45,036 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:45,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:45,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 05:02:45,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:45,270 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 05:02:45,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 05:02:45,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:45,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 352 states and 509 transitions. [2023-12-03 05:02:45,283 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 509 transitions. [2023-12-03 05:02:45,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 05:02:45,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:45,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:45,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:45,285 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:45,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 05:02:45,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:45,767 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:46,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:46,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 05:02:46,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:46,155 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 05:02:46,160 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 05:02:46,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:46,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 355 states and 511 transitions. [2023-12-03 05:02:46,179 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 511 transitions. [2023-12-03 05:02:46,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 05:02:46,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:46,180 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:46,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:46,181 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:46,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 05:02:46,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:46,715 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:46,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:47,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 05:02:47,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:47,061 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 05:02:47,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 05:02:53,778 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:02:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:02:53,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 356 states and 512 transitions. [2023-12-03 05:02:53,885 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 512 transitions. [2023-12-03 05:02:53,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 05:02:53,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:02:53,886 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:02:53,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:02:53,887 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:02:53,888 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 05:02:54,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:54,490 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:02:54,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:02:54,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 05:02:54,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:02:54,847 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 05:02:54,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 05:03:04,934 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 05:03:04,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:04,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 357 states and 513 transitions. [2023-12-03 05:03:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 513 transitions. [2023-12-03 05:03:04,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 05:03:04,980 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:04,980 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:04,980 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:04,981 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:04,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 05:03:05,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:05,786 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:06,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 05:03:06,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:06,189 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 05:03:06,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 05:03:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 358 states and 514 transitions. [2023-12-03 05:03:06,432 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 514 transitions. [2023-12-03 05:03:06,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 05:03:06,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:06,432 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:06,432 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:06,433 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:06,434 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 05:03:07,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:07,289 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:07,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:07,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 05:03:07,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:07,692 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 05:03:07,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 05:03:17,935 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 05:03:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:17,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 359 states and 515 transitions. [2023-12-03 05:03:17,977 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 515 transitions. [2023-12-03 05:03:17,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 05:03:17,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:17,978 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:17,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:17,979 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:17,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 05:03:18,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:18,889 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:19,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:19,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 05:03:19,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:19,331 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 05:03:19,339 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 05:03:29,617 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 05:03:29,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:29,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 360 states and 516 transitions. [2023-12-03 05:03:29,654 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 516 transitions. [2023-12-03 05:03:29,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 05:03:29,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:29,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:29,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:29,656 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:29,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 05:03:30,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:30,606 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:30,965 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 05:03:30,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:31,092 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 05:03:31,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 05:03:41,431 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 05:03:41,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:41,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 361 states and 517 transitions. [2023-12-03 05:03:41,471 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2023-12-03 05:03:41,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 05:03:41,471 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:41,471 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:41,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:41,472 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:41,475 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 05:03:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:42,465 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:42,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:42,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 05:03:42,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:42,885 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 05:03:42,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 05:03:43,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:43,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 362 states and 518 transitions. [2023-12-03 05:03:43,163 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 518 transitions. [2023-12-03 05:03:43,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 05:03:43,163 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:43,164 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:43,164 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:43,164 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:43,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 05:03:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:44,142 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:44,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:44,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 05:03:44,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:44,562 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 05:03:44,572 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Forceful destruction successful, exit code 0 [2023-12-03 05:03:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:44,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 363 states and 519 transitions. [2023-12-03 05:03:44,849 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 519 transitions. [2023-12-03 05:03:44,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 05:03:44,849 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:44,849 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:44,850 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:44,850 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:44,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 05:03:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:45,873 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:46,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:46,203 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 05:03:46,205 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:46,327 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 05:03:46,338 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 05:03:56,671 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 05:03:56,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:03:56,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 364 states and 520 transitions. [2023-12-03 05:03:56,708 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 520 transitions. [2023-12-03 05:03:56,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 05:03:56,708 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:03:56,708 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:03:56,708 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:03:56,709 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:03:56,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 05:03:57,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:57,662 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:03:57,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:03:57,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 05:03:58,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:03:58,146 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 05:03:58,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-03 05:04:08,522 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 05:04:08,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:08,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 365 states and 521 transitions. [2023-12-03 05:04:08,620 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2023-12-03 05:04:08,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 05:04:08,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:08,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:08,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:08,621 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:08,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 05:04:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:09,745 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:10,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:10,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 05:04:10,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:10,205 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 05:04:10,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-03 05:04:10,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:10,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 366 states and 522 transitions. [2023-12-03 05:04:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 522 transitions. [2023-12-03 05:04:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 05:04:10,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:10,611 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:10,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:10,612 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:10,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 05:04:11,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:11,847 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:12,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:12,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 05:04:12,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:12,338 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 05:04:12,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-03 05:04:12,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:12,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 367 states and 523 transitions. [2023-12-03 05:04:12,724 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 523 transitions. [2023-12-03 05:04:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 05:04:12,725 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:12,725 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:12,725 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:12,726 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:12,727 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 05:04:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:13,936 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:14,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:14,250 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 05:04:14,252 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:14,424 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 05:04:14,438 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 05:04:24,846 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 05:04:24,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:24,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 368 states and 524 transitions. [2023-12-03 05:04:24,889 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 524 transitions. [2023-12-03 05:04:24,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-03 05:04:24,890 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:24,890 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:24,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:24,891 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:24,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 05:04:26,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:26,187 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:26,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:26,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 05:04:26,525 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:26,718 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 05:04:26,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 05:04:36,559 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:04:36,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:36,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 369 states and 525 transitions. [2023-12-03 05:04:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 525 transitions. [2023-12-03 05:04:36,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 05:04:36,607 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:36,607 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:36,607 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:36,608 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:36,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 05:04:37,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:37,962 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:38,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:38,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 05:04:38,306 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:38,505 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 05:04:38,525 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 05:04:39,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:39,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 370 states and 526 transitions. [2023-12-03 05:04:39,019 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 526 transitions. [2023-12-03 05:04:39,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-03 05:04:39,020 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:39,020 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:39,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:39,021 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:39,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 05:04:40,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:40,405 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:40,724 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 05:04:40,726 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:40,906 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 05:04:40,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 05:04:41,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:41,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 371 states and 527 transitions. [2023-12-03 05:04:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 527 transitions. [2023-12-03 05:04:41,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 05:04:41,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:41,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:41,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:41,465 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:41,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 05:04:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:42,973 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:43,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:43,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 05:04:43,333 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:43,547 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 05:04:43,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 05:04:54,097 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 05:04:54,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:04:54,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 372 states and 528 transitions. [2023-12-03 05:04:54,145 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 528 transitions. [2023-12-03 05:04:54,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 05:04:54,145 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:04:54,145 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:04:54,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:04:54,146 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:04:54,147 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 05:04:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:55,558 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:04:55,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:04:55,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 05:04:55,937 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:04:56,179 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 05:04:56,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 05:05:06,817 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 05:05:06,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 373 states and 529 transitions. [2023-12-03 05:05:06,857 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 529 transitions. [2023-12-03 05:05:06,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 05:05:06,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:06,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:06,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:06,858 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:06,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-03 05:05:08,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:08,412 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:08,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:08,750 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 05:05:08,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:09,000 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 05:05:09,021 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-12-03 05:05:09,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:09,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 374 states and 530 transitions. [2023-12-03 05:05:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 530 transitions. [2023-12-03 05:05:09,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 05:05:09,640 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:09,640 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:09,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:09,641 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:09,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-03 05:05:11,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:11,282 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:11,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 05:05:11,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:11,858 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 05:05:11,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-03 05:05:12,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:12,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 375 states and 531 transitions. [2023-12-03 05:05:12,547 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 531 transitions. [2023-12-03 05:05:12,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 05:05:12,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:12,547 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:12,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:12,548 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:12,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-03 05:05:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:14,318 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:14,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:14,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 05:05:14,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:14,924 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 05:05:14,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-03 05:05:23,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.73s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:05:23,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:23,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 376 states and 532 transitions. [2023-12-03 05:05:23,446 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 532 transitions. [2023-12-03 05:05:23,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 05:05:23,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:23,446 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:23,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:23,447 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:23,448 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-03 05:05:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:25,181 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:25,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:25,563 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 05:05:25,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:25,836 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 05:05:25,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-03 05:05:31,904 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:05:31,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 377 states and 533 transitions. [2023-12-03 05:05:31,948 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 533 transitions. [2023-12-03 05:05:31,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-03 05:05:31,949 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:31,949 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:31,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:31,950 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:31,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-03 05:05:33,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:33,620 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:33,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:34,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 05:05:34,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:34,283 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 05:05:34,308 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-03 05:05:35,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:35,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 378 states and 534 transitions. [2023-12-03 05:05:35,061 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 534 transitions. [2023-12-03 05:05:35,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 05:05:35,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:35,061 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:35,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:35,062 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:35,063 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-03 05:05:36,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:36,735 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:37,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:37,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 05:05:37,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:37,388 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 05:05:37,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-03 05:05:38,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:38,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 379 states and 535 transitions. [2023-12-03 05:05:38,170 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 535 transitions. [2023-12-03 05:05:38,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 05:05:38,170 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:38,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:38,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:38,171 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:38,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-03 05:05:39,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:39,935 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:40,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:40,319 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 05:05:40,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:40,632 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 05:05:40,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-03 05:05:51,486 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 05:05:51,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:05:51,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 380 states and 536 transitions. [2023-12-03 05:05:51,533 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 536 transitions. [2023-12-03 05:05:51,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-03 05:05:51,533 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:05:51,533 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:05:51,533 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:05:51,534 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:05:51,535 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-03 05:05:53,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:53,546 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:05:53,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:05:53,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 05:05:53,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:05:54,258 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 05:05:54,285 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-03 05:06:05,162 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 05:06:05,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:05,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 381 states and 537 transitions. [2023-12-03 05:06:05,209 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 537 transitions. [2023-12-03 05:06:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 05:06:05,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:05,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:05,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:06:05,210 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:06:05,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-03 05:06:07,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:07,146 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:06:07,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:07,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 05:06:07,503 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:06:07,828 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 05:06:07,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Forceful destruction successful, exit code 0 [2023-12-03 05:06:08,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:08,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 382 states and 538 transitions. [2023-12-03 05:06:08,745 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 538 transitions. [2023-12-03 05:06:08,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-03 05:06:08,746 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:08,746 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:08,746 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:06:08,747 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:06:08,748 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-03 05:06:10,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:10,678 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:06:11,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:11,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 05:06:11,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:06:11,403 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 05:06:11,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-03 05:06:12,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:12,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 383 states and 539 transitions. [2023-12-03 05:06:12,386 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 539 transitions. [2023-12-03 05:06:12,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 05:06:12,387 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:12,387 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:12,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:06:12,387 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:06:12,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-03 05:06:14,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:14,530 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:06:14,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:14,928 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 05:06:14,930 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:06:15,285 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 05:06:15,316 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-03 05:06:26,294 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 05:06:26,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:26,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 384 states and 540 transitions. [2023-12-03 05:06:26,344 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 540 transitions. [2023-12-03 05:06:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-03 05:06:26,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:26,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:26,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:06:26,345 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:06:26,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-03 05:06:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:28,629 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:06:29,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:29,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 05:06:29,044 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:06:29,414 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 05:06:29,445 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-03 05:06:40,464 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 05:06:40,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:40,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 385 states and 541 transitions. [2023-12-03 05:06:40,512 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 541 transitions. [2023-12-03 05:06:40,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 05:06:40,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:40,512 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:40,512 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:06:40,513 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:06:40,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-03 05:06:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:42,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:06:42,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:42,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 05:06:42,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:06:43,317 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 05:06:43,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-03 05:06:44,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:44,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 386 states and 542 transitions. [2023-12-03 05:06:44,362 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 542 transitions. [2023-12-03 05:06:44,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 05:06:44,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:44,363 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:44,363 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:06:44,364 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:06:44,364 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-03 05:06:46,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:46,799 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:06:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:47,184 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 05:06:47,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:06:47,540 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 05:06:47,575 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-03 05:06:48,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:06:48,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 387 states and 543 transitions. [2023-12-03 05:06:48,633 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 543 transitions. [2023-12-03 05:06:48,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-03 05:06:48,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:06:48,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:06:48,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:06:48,634 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:06:48,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-03 05:06:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:51,022 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:06:51,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:06:51,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 05:06:51,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:06:51,877 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 05:06:51,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-03 05:07:03,052 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 05:07:03,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:07:03,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 388 states and 544 transitions. [2023-12-03 05:07:03,101 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 544 transitions. [2023-12-03 05:07:03,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-03 05:07:03,102 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:07:03,102 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:07:03,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:07:03,103 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:07:03,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-03 05:07:05,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:05,539 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:07:05,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:05,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 05:07:05,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:07:06,361 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 05:07:06,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-03 05:07:17,605 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 05:07:17,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:07:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 389 states and 545 transitions. [2023-12-03 05:07:17,653 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 545 transitions. [2023-12-03 05:07:17,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-03 05:07:17,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:07:17,653 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:07:17,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:07:17,654 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:07:17,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-03 05:07:20,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:20,209 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:07:20,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:20,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 05:07:20,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:07:21,049 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 05:07:21,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-03 05:07:22,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:07:22,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 390 states and 546 transitions. [2023-12-03 05:07:22,324 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 546 transitions. [2023-12-03 05:07:22,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 05:07:22,324 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:07:22,324 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:07:22,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:07:22,325 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:07:22,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-03 05:07:24,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:24,849 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:07:25,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:25,276 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 05:07:25,278 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:07:25,721 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 05:07:25,744 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-03 05:07:27,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:07:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 391 states and 547 transitions. [2023-12-03 05:07:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 547 transitions. [2023-12-03 05:07:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 05:07:27,105 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:07:27,105 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:07:27,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:07:27,106 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:07:27,109 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-03 05:07:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:29,664 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:07:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:30,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 05:07:30,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:07:30,579 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 05:07:30,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-03 05:07:41,972 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 05:07:42,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:07:42,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 392 states and 548 transitions. [2023-12-03 05:07:42,018 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 548 transitions. [2023-12-03 05:07:42,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 05:07:42,018 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:07:42,018 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:07:42,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:07:42,019 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:07:42,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-03 05:07:44,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:44,812 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:07:45,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:07:45,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 05:07:45,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:07:45,703 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 05:07:45,728 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-03 05:07:57,190 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 05:07:57,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:07:57,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 393 states and 549 transitions. [2023-12-03 05:07:57,232 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 549 transitions. [2023-12-03 05:07:57,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 05:07:57,233 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:07:57,233 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:07:57,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:07:57,233 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:07:57,234 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-03 05:08:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:00,082 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:00,500 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 05:08:00,502 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:01,001 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 05:08:01,028 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-03 05:08:02,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:08:02,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 394 states and 550 transitions. [2023-12-03 05:08:02,447 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 550 transitions. [2023-12-03 05:08:02,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-03 05:08:02,447 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:08:02,448 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:08:02,448 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:08:02,448 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:08:02,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-03 05:08:05,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:05,070 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:05,516 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 05:08:05,518 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:06,021 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 05:08:06,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-03 05:08:07,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:08:07,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 395 states and 551 transitions. [2023-12-03 05:08:07,482 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 551 transitions. [2023-12-03 05:08:07,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 05:08:07,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:08:07,482 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:08:07,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:08:07,483 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:08:07,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-03 05:08:10,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:10,494 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:10,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:10,917 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 05:08:10,919 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:11,406 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 05:08:11,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-03 05:08:23,010 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 05:08:23,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:08:23,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 396 states and 552 transitions. [2023-12-03 05:08:23,055 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 552 transitions. [2023-12-03 05:08:23,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-03 05:08:23,055 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:08:23,055 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:08:23,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:08:23,056 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:08:23,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-03 05:08:26,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:26,280 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:26,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:26,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 05:08:26,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:27,316 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 05:08:27,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-03 05:08:38,881 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 05:08:38,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:08:38,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 397 states and 553 transitions. [2023-12-03 05:08:38,929 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 553 transitions. [2023-12-03 05:08:38,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 05:08:38,930 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:08:38,930 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:08:38,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:08:38,931 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:08:38,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-03 05:08:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:42,219 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:42,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 05:08:42,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:43,203 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 05:08:43,231 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-03 05:08:44,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:08:44,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 398 states and 554 transitions. [2023-12-03 05:08:44,766 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 554 transitions. [2023-12-03 05:08:44,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-03 05:08:44,766 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:08:44,766 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:08:44,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:08:44,767 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:08:44,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-03 05:08:47,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:47,920 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:48,377 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 05:08:48,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:48,960 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 05:08:48,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-03 05:08:50,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:08:50,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 399 states and 555 transitions. [2023-12-03 05:08:50,615 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 555 transitions. [2023-12-03 05:08:50,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 05:08:50,616 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:08:50,616 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:08:50,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:08:50,617 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:08:50,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-03 05:08:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:53,664 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:08:54,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:08:54,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 05:08:54,117 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:08:54,690 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 05:08:54,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-03 05:09:04,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:09:04,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:09:04,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 400 states and 556 transitions. [2023-12-03 05:09:04,536 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 556 transitions. [2023-12-03 05:09:04,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 05:09:04,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:09:04,537 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:09:04,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:09:04,538 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:09:04,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-03 05:09:07,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:07,670 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:09:08,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:08,170 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 05:09:08,172 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:09:08,774 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 05:09:08,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-03 05:09:20,553 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 05:09:20,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:09:20,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 401 states and 557 transitions. [2023-12-03 05:09:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 557 transitions. [2023-12-03 05:09:20,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-03 05:09:20,600 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:09:20,600 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:09:20,600 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:09:20,601 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:09:20,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-03 05:09:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:23,836 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:09:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:24,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 05:09:24,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:09:24,937 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 05:09:24,968 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-03 05:09:26,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:09:26,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 402 states and 558 transitions. [2023-12-03 05:09:26,695 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 558 transitions. [2023-12-03 05:09:26,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-03 05:09:26,696 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:09:26,696 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:09:26,696 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:09:26,697 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:09:26,697 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-03 05:09:30,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:30,175 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:09:30,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:30,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 05:09:30,643 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:09:31,240 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 05:09:31,272 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-03 05:09:33,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:09:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 403 states and 559 transitions. [2023-12-03 05:09:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 559 transitions. [2023-12-03 05:09:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-03 05:09:33,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:09:33,052 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:09:33,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:09:33,053 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:09:33,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-03 05:09:36,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:36,346 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:09:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:36,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 05:09:36,835 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:09:37,472 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 05:09:37,505 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-03 05:09:49,334 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 05:09:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:09:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 404 states and 560 transitions. [2023-12-03 05:09:49,387 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 560 transitions. [2023-12-03 05:09:49,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-03 05:09:49,387 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:09:49,387 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:09:49,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:09:49,388 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:09:49,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-03 05:09:52,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:52,879 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:09:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:09:53,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 05:09:53,317 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:09:54,001 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 05:09:54,034 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-03 05:10:02,253 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.31s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:10:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:10:02,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 405 states and 561 transitions. [2023-12-03 05:10:02,304 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 561 transitions. [2023-12-03 05:10:02,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-03 05:10:02,304 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:10:02,304 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:10:02,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:10:02,305 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:10:02,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-03 05:10:05,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:05,790 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:10:06,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:06,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 05:10:06,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:10:06,902 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 05:10:06,936 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-03 05:10:08,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:10:08,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 406 states and 562 transitions. [2023-12-03 05:10:08,818 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 562 transitions. [2023-12-03 05:10:08,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 05:10:08,818 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:10:08,819 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:10:08,819 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:10:08,819 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:10:08,820 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-03 05:10:12,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:12,883 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:10:13,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:13,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 05:10:13,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:10:14,010 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 05:10:14,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-03 05:10:16,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:10:16,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 407 states and 563 transitions. [2023-12-03 05:10:16,028 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 563 transitions. [2023-12-03 05:10:16,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 05:10:16,028 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:10:16,028 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:10:16,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:10:16,029 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:10:16,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-03 05:10:20,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:20,037 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:10:20,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:20,569 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 05:10:20,571 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:10:21,279 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 05:10:21,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-03 05:10:33,368 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 05:10:33,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:10:33,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 408 states and 564 transitions. [2023-12-03 05:10:33,419 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 564 transitions. [2023-12-03 05:10:33,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-03 05:10:33,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:10:33,420 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:10:33,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:10:33,421 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:10:33,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-03 05:10:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:37,541 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:10:37,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:38,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 05:10:38,035 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:10:38,759 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 05:10:38,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-03 05:10:51,016 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 05:10:51,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:10:51,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 409 states and 565 transitions. [2023-12-03 05:10:51,062 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 565 transitions. [2023-12-03 05:10:51,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-03 05:10:51,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:10:51,063 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:10:51,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:10:51,063 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:10:51,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-03 05:10:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:55,026 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:10:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:10:55,499 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 05:10:55,501 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:10:56,207 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 05:10:56,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-03 05:10:58,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:10:58,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 410 states and 566 transitions. [2023-12-03 05:10:58,372 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 566 transitions. [2023-12-03 05:10:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-03 05:10:58,372 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:10:58,372 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:10:58,373 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:10:58,373 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:10:58,374 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-03 05:11:02,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:02,105 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:02,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:02,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 05:11:02,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:03,336 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 05:11:03,374 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-03 05:11:05,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:05,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 411 states and 567 transitions. [2023-12-03 05:11:05,592 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 567 transitions. [2023-12-03 05:11:05,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-03 05:11:05,593 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:05,593 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:05,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:05,594 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:05,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-03 05:11:09,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:09,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:10,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 05:11:10,296 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:11,070 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 05:11:11,108 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-03 05:11:17,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.27s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:11:17,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:17,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 412 states and 568 transitions. [2023-12-03 05:11:17,686 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 568 transitions. [2023-12-03 05:11:17,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-03 05:11:17,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:17,687 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:17,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:17,687 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:17,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-03 05:11:22,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:22,139 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:22,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-03 05:11:22,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:23,457 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 05:11:23,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2023-12-03 05:11:35,700 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 05:11:35,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:35,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 413 states and 569 transitions. [2023-12-03 05:11:35,749 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 569 transitions. [2023-12-03 05:11:35,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-03 05:11:35,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:35,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:35,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:35,750 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:35,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-12-03 05:11:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:39,926 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:40,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:40,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-03 05:11:40,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:41,235 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 05:11:41,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-12-03 05:11:43,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:43,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 414 states and 570 transitions. [2023-12-03 05:11:43,674 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 570 transitions. [2023-12-03 05:11:43,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-03 05:11:43,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:43,674 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:43,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:43,675 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:43,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-12-03 05:11:48,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:48,011 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:48,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:48,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-03 05:11:48,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:49,334 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 05:11:49,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Ended with exit code 0 [2023-12-03 05:11:51,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:11:51,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 415 states and 571 transitions. [2023-12-03 05:11:51,846 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 571 transitions. [2023-12-03 05:11:51,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-03 05:11:51,846 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:11:51,847 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:11:51,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:11:51,847 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:11:51,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-12-03 05:11:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:56,424 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:11:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:11:56,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 05:11:56,904 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:11:57,763 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 05:11:57,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2023-12-03 05:12:10,220 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 05:12:10,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:12:10,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 416 states and 572 transitions. [2023-12-03 05:12:10,269 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 572 transitions. [2023-12-03 05:12:10,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-03 05:12:10,269 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:12:10,269 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:12:10,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:12:10,270 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:12:10,271 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-12-03 05:12:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:14,767 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:12:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:15,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 05:12:15,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:12:16,169 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 05:12:16,212 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Ended with exit code 0 [2023-12-03 05:12:28,844 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 05:12:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:12:28,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 417 states and 573 transitions. [2023-12-03 05:12:28,892 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 573 transitions. [2023-12-03 05:12:28,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-03 05:12:28,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:12:28,892 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:12:28,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:12:28,893 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:12:28,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2023-12-03 05:12:33,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:33,487 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:12:33,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:34,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-03 05:12:34,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:12:34,869 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 05:12:34,913 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Ended with exit code 0 [2023-12-03 05:12:37,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:12:37,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 418 states and 574 transitions. [2023-12-03 05:12:37,544 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 574 transitions. [2023-12-03 05:12:37,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-03 05:12:37,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:12:37,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:12:37,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:12:37,552 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:12:37,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2023-12-03 05:12:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:42,410 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:12:42,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:42,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-03 05:12:42,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:12:43,813 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 05:12:43,859 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Ended with exit code 0 [2023-12-03 05:12:46,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:12:46,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 419 states and 575 transitions. [2023-12-03 05:12:46,480 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 575 transitions. [2023-12-03 05:12:46,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-03 05:12:46,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:12:46,480 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:12:46,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:12:46,481 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:12:46,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2023-12-03 05:12:51,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:51,472 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:12:52,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:12:52,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-03 05:12:52,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:12:53,001 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 05:12:53,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2023-12-03 05:12:55,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:12:55,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 420 states and 576 transitions. [2023-12-03 05:12:55,807 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 576 transitions. [2023-12-03 05:12:55,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-03 05:12:55,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:12:55,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:12:55,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:12:55,808 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:12:55,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2023-12-03 05:13:00,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:00,519 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:13:01,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:01,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-03 05:13:01,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:13:02,026 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 05:13:02,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Ended with exit code 0 [2023-12-03 05:13:05,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:13:05,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 421 states and 577 transitions. [2023-12-03 05:13:05,079 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 577 transitions. [2023-12-03 05:13:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-03 05:13:05,079 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:13:05,079 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:13:05,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:13:05,080 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:13:05,081 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2023-12-03 05:13:10,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:10,103 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:13:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:10,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-03 05:13:10,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:13:11,590 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 05:13:11,638 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2023-12-03 05:13:17,901 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 05:13:17,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:13:17,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 422 states and 578 transitions. [2023-12-03 05:13:17,948 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 578 transitions. [2023-12-03 05:13:17,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-03 05:13:17,948 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:13:17,949 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:13:17,949 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:13:17,949 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:13:17,950 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Waiting until timeout for monitored process [2023-12-03 05:13:23,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:23,246 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:13:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:23,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-03 05:13:23,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:13:24,727 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 05:13:24,776 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Forceful destruction successful, exit code 0 [2023-12-03 05:13:37,717 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 05:13:37,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:13:37,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 423 states and 579 transitions. [2023-12-03 05:13:37,774 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 579 transitions. [2023-12-03 05:13:37,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-03 05:13:37,774 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:13:37,774 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:13:37,774 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:13:37,775 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:13:37,776 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2023-12-03 05:13:43,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:43,087 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:13:43,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:43,631 INFO L262 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-03 05:13:43,633 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:13:44,642 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 05:13:44,695 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Ended with exit code 0 [2023-12-03 05:13:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:13:48,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 424 states and 580 transitions. [2023-12-03 05:13:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 580 transitions. [2023-12-03 05:13:48,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-03 05:13:48,121 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:13:48,121 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:13:48,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:13:48,122 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:13:48,122 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Waiting until timeout for monitored process [2023-12-03 05:13:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:53,524 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:13:54,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:13:54,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 05:13:54,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:13:55,335 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 05:13:55,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Ended with exit code 0 [2023-12-03 05:13:58,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:13:58,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 425 states and 581 transitions. [2023-12-03 05:13:58,928 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 581 transitions. [2023-12-03 05:13:58,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-03 05:13:58,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:13:58,928 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:13:58,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:13:58,929 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:13:58,951 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2023-12-03 05:14:04,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:14:04,262 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:14:04,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:14:04,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-03 05:14:04,805 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:14:05,976 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 05:14:06,032 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Ended with exit code 0 [2023-12-03 05:14:19,489 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 05:14:19,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 05:14:19,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 582 states to 426 states and 582 transitions. [2023-12-03 05:14:19,546 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 582 transitions. [2023-12-03 05:14:19,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-12-03 05:14:19,547 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 05:14:19,547 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 05:14:19,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 05:14:19,548 INFO L229 MonitoredProcess]: Starting monitored process 83 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 05:14:19,548 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (83)] Waiting until timeout for monitored process [2023-12-03 05:14:24,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:14:24,961 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 05:14:25,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 05:14:25,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 1193 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-03 05:14:25,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 05:14:26,797 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 05:14:26,860 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b50dd0dc-2707-4e9c-a7c1-aeaa5240aa9d/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (83)] Ended with exit code 0