./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:35:36,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:35:36,290 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-03 04:35:36,294 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 04:35:36,295 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 04:35:36,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:35:36,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:35:36,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:35:36,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:35:36,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:35:36,317 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:35:36,318 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:35:36,319 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:35:36,319 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:35:36,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:35:36,320 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 04:35:36,320 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 04:35:36,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:35:36,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:35:36,322 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:35:36,322 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:35:36,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:35:36,323 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:35:36,324 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:35:36,324 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:35:36,325 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:35:36,325 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:35:36,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:35:36,326 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:35:36,327 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:35:36,327 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 04:35:36,328 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 04:35:36,328 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_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2023-12-03 04:35:36,549 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:35:36,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:35:36,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:35:36,572 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:35:36,572 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:35:36,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-12-03 04:35:39,341 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:35:39,621 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:35:39,621 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-12-03 04:35:39,641 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data/2db16f5fa/92845c44fa2f4a47ac3c0aee63d08593/FLAGaa25209e9 [2023-12-03 04:35:39,656 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data/2db16f5fa/92845c44fa2f4a47ac3c0aee63d08593 [2023-12-03 04:35:39,659 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:35:39,661 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:35:39,662 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:35:39,662 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:35:39,667 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:35:39,668 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:35:39" (1/1) ... [2023-12-03 04:35:39,669 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8ca7ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:39, skipping insertion in model container [2023-12-03 04:35:39,669 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:35:39" (1/1) ... [2023-12-03 04:35:39,736 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:35:40,287 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:35:40,299 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:35:40,402 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:35:40,479 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:35:40,486 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:35:40,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40 WrapperNode [2023-12-03 04:35:40,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:35:40,488 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:35:40,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:35:40,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:35:40,496 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,533 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,604 INFO L138 Inliner]: procedures = 282, calls = 298, calls flagged for inlining = 24, calls inlined = 36, statements flattened = 1528 [2023-12-03 04:35:40,604 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:35:40,605 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:35:40,605 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:35:40,605 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:35:40,615 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,615 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,638 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,688 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,702 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,716 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,727 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:35:40,727 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:35:40,728 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:35:40,728 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:35:40,728 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:35:40" (1/1) ... [2023-12-03 04:35:40,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:35:40,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:35:40,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:35:40,760 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 04:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 04:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 04:35:40,792 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 04:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 04:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 04:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 04:35:40,793 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:35:40,793 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:35:41,000 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:35:41,001 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:35:42,336 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:35:43,797 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:35:43,797 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-03 04:35:43,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:35:43 BoogieIcfgContainer [2023-12-03 04:35:43,799 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:35:43,799 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:35:43,799 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:35:43,809 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:35:43,809 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:35:43" (1/1) ... [2023-12-03 04:35:43,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:35:43,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:35:43,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 182 states and 288 transitions. [2023-12-03 04:35:43,880 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2023-12-03 04:35:43,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:35:43,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:35:43,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:35:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:35:44,057 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 04:35:44,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:35:44,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 181 states and 283 transitions. [2023-12-03 04:35:44,081 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2023-12-03 04:35:44,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 04:35:44,082 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:35:44,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:35:44,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:35:44,236 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 04:35:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:35:44,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 183 states and 286 transitions. [2023-12-03 04:35:44,278 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 286 transitions. [2023-12-03 04:35:44,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 04:35:44,279 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:35:44,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:35:44,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:35:44,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:35:44,410 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:35:44,417 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 04:35:44,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:35:44,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 182 states and 275 transitions. [2023-12-03 04:35:44,424 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 275 transitions. [2023-12-03 04:35:44,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 04:35:44,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:35:44,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:35:44,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:35:44,550 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:35:44,552 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:35:44,555 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 04:35:44,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:35:44,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 182 states and 273 transitions. [2023-12-03 04:35:44,560 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 273 transitions. [2023-12-03 04:35:44,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 04:35:44,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:35:44,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:35:44,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:35:44,690 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:35:44,692 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:35:44,695 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 04:35:54,716 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 04:35:54,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:35:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 182 states and 271 transitions. [2023-12-03 04:35:54,755 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 271 transitions. [2023-12-03 04:35:54,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 04:35:54,755 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:35:54,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:35:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:35:55,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 04:35:55,414 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:35:55,467 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 04:35:55,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:35:55,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 179 states and 268 transitions. [2023-12-03 04:35:55,531 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 268 transitions. [2023-12-03 04:35:55,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 04:35:55,532 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:35:55,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:35:55,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:35:55,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 04:35:55,742 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:35:55,832 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 04:36:06,111 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 04:36:16,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:36:26,161 WARN L539 Checker$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 04:36:36,190 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 04:36:36,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:36:36,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 197 states and 290 transitions. [2023-12-03 04:36:36,467 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 290 transitions. [2023-12-03 04:36:36,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 04:36:36,468 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:36:36,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:36:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:36:36,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:36:36,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:36:36,679 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 04:36:36,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:36:36,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 196 states and 277 transitions. [2023-12-03 04:36:36,806 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 277 transitions. [2023-12-03 04:36:36,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 04:36:36,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:36:36,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:36:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:36:36,994 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 04:36:36,997 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:36:37,015 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 04:36:37,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:36:37,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 196 states and 276 transitions. [2023-12-03 04:36:37,123 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 276 transitions. [2023-12-03 04:36:37,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 04:36:37,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:36:37,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:36:37,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:36:37,338 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:36:37,340 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:36:37,343 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 04:36:37,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:36:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 190 states and 267 transitions. [2023-12-03 04:36:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 267 transitions. [2023-12-03 04:36:37,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 04:36:37,355 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:36:37,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:36:37,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:36:37,575 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:36:37,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:36:37,578 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 04:36:47,589 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 04:36:47,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:36:47,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 190 states and 265 transitions. [2023-12-03 04:36:47,624 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 265 transitions. [2023-12-03 04:36:47,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 04:36:47,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:36:47,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:36:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:36:47,833 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:36:47,836 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:36:47,921 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 04:36:58,429 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:37:08,594 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:37:18,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:37:28,657 WARN L539 Checker$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 04:37:28,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:37:28,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 203 states and 281 transitions. [2023-12-03 04:37:28,704 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 281 transitions. [2023-12-03 04:37:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 04:37:28,705 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:37:28,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:37:28,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:37:28,894 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 04:37:28,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:37:28,931 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 04:37:38,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:37:48,993 WARN L539 Checker$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 04:37:59,027 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:38:09,059 WARN L539 Checker$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 04:38:09,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:38:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 206 states and 283 transitions. [2023-12-03 04:38:09,103 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 283 transitions. [2023-12-03 04:38:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 04:38:09,103 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:38:09,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:38:09,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:38:09,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:38:09,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:38:09,404 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 04:38:19,422 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:38:29,474 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:38:39,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:38:49,537 WARN L539 Checker$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 04:38:49,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:38:49,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 209 states and 285 transitions. [2023-12-03 04:38:49,577 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 285 transitions. [2023-12-03 04:38:49,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 04:38:49,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:38:49,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:38:49,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:38:49,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:38:49,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:38:49,929 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 04:38:50,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:38:50,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 221 states and 301 transitions. [2023-12-03 04:38:50,173 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 301 transitions. [2023-12-03 04:38:50,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 04:38:50,174 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:38:50,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:38:50,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:38:50,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:38:50,471 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:38:50,474 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 04:38:50,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:38:50,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 220 states and 296 transitions. [2023-12-03 04:38:50,496 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 296 transitions. [2023-12-03 04:38:50,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 04:38:50,496 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:38:50,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:38:50,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:38:50,762 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:38:50,763 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:38:50,831 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 04:39:01,424 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:39:11,459 WARN L539 Checker$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 04:39:21,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 04:39:31,527 WARN L539 Checker$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 04:39:31,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:31,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 235 states and 314 transitions. [2023-12-03 04:39:31,734 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 314 transitions. [2023-12-03 04:39:31,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 04:39:31,734 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:39:31,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:39:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:39:32,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 04:39:32,356 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:39:32,423 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 04:39:32,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:39:32,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 236 states and 315 transitions. [2023-12-03 04:39:32,669 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 315 transitions. [2023-12-03 04:39:32,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 04:39:32,670 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:39:32,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 04:39:42,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 04:39:42,957 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 04:39:42,960 INFO L158 Benchmark]: Toolchain (without parser) took 243299.18ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 110.5MB in the beginning and 118.8MB in the end (delta: -8.3MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2023-12-03 04:39:42,960 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 04:39:42,961 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.52ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 122.3MB in the end (delta: -11.8MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2023-12-03 04:39:42,962 INFO L158 Benchmark]: Boogie Procedure Inliner took 116.30ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 111.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 04:39:42,962 INFO L158 Benchmark]: Boogie Preprocessor took 121.59ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 102.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 04:39:42,963 INFO L158 Benchmark]: RCFGBuilder took 3071.25ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 102.1MB in the beginning and 177.2MB in the end (delta: -75.2MB). Peak memory consumption was 96.8MB. Max. memory is 16.1GB. [2023-12-03 04:39:42,963 INFO L158 Benchmark]: CodeCheck took 239159.82ms. Allocated memory is still 232.8MB. Free memory was 177.2MB in the beginning and 118.8MB in the end (delta: 58.5MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2023-12-03 04:39:42,966 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 0.14ms. Allocated memory is still 107.0MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.52ms. Allocated memory is still 159.4MB. Free memory was 110.5MB in the beginning and 122.3MB in the end (delta: -11.8MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 116.30ms. Allocated memory is still 159.4MB. Free memory was 121.6MB in the beginning and 111.8MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 121.59ms. Allocated memory is still 159.4MB. Free memory was 111.8MB in the beginning and 102.1MB in the end (delta: 9.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3071.25ms. Allocated memory was 159.4MB in the beginning and 232.8MB in the end (delta: 73.4MB). Free memory was 102.1MB in the beginning and 177.2MB in the end (delta: -75.2MB). Peak memory consumption was 96.8MB. Max. memory is 16.1GB. * CodeCheck took 239159.82ms. Allocated memory is still 232.8MB. Free memory was 177.2MB in the beginning and 118.8MB in the end (delta: 58.5MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 04:39:43,114 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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 ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 04:39:44,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 04:39:44,935 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-03 04:39:44,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 04:39:44,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 04:39:44,972 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 04:39:44,972 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 04:39:44,973 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 04:39:44,973 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 04:39:44,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 04:39:44,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 04:39:44,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 04:39:44,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 04:39:44,976 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 04:39:44,977 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 04:39:44,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 04:39:44,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 04:39:44,979 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 04:39:44,979 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 04:39:44,980 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 04:39:44,980 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 04:39:44,981 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 04:39:44,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 04:39:44,981 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 04:39:44,982 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 04:39:44,982 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 04:39:44,982 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 04:39:44,983 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:39:44,983 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 04:39:44,984 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 04:39:44,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:39:44,985 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 04:39:44,985 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 04:39:44,985 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 04:39:44,985 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 04:39:44,986 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 04:39:44,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 04:39:44,986 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_fa2cc609-e457-45bc-a9b4-c62f786e7b52/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac848265e1daab3ca0f2905a3d0d6fdafaee38399ca7123ad8517babc999ef80 [2023-12-03 04:39:45,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 04:39:45,297 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 04:39:45,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 04:39:45,301 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 04:39:45,301 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 04:39:45,303 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-12-03 04:39:47,983 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 04:39:48,312 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 04:39:48,313 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test6-1.i [2023-12-03 04:39:48,332 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data/b8dfbeaf3/f86b57997d4b4e29b2a6c19d70e4b54c/FLAG38f0ebe29 [2023-12-03 04:39:48,347 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/data/b8dfbeaf3/f86b57997d4b4e29b2a6c19d70e4b54c [2023-12-03 04:39:48,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 04:39:48,352 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 04:39:48,353 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 04:39:48,353 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 04:39:48,358 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 04:39:48,359 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:39:48" (1/1) ... [2023-12-03 04:39:48,360 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74790729 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:48, skipping insertion in model container [2023-12-03 04:39:48,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 04:39:48" (1/1) ... [2023-12-03 04:39:48,420 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:39:49,049 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:39:49,064 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 04:39:49,085 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 04:39:49,182 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:39:49,187 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 04:39:49,278 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 04:39:49,334 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 04:39:49,340 INFO L206 MainTranslator]: Completed translation [2023-12-03 04:39:49,341 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49 WrapperNode [2023-12-03 04:39:49,341 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 04:39:49,342 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 04:39:49,342 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 04:39:49,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 04:39:49,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,382 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,445 INFO L138 Inliner]: procedures = 285, calls = 298, calls flagged for inlining = 24, calls inlined = 36, statements flattened = 1200 [2023-12-03 04:39:49,446 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 04:39:49,446 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 04:39:49,446 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 04:39:49,447 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 04:39:49,454 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,454 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,463 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,464 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,516 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,521 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,529 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,540 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 04:39:49,541 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 04:39:49,541 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 04:39:49,542 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 04:39:49,542 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 04:39:49" (1/1) ... [2023-12-03 04:39:49,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 04:39:49,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 04:39:49,573 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 04:39:49,576 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 04:39:49,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-03 04:39:49,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 04:39:49,605 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 04:39:49,605 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 04:39:49,605 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 04:39:49,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 04:39:49,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 04:39:49,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 04:39:49,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 04:39:49,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 04:39:49,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 04:39:49,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 04:39:49,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 04:39:49,829 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 04:39:49,831 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 04:40:04,082 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 04:40:04,502 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 04:40:04,502 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-03 04:40:04,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:40:04 BoogieIcfgContainer [2023-12-03 04:40:04,504 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 04:40:04,505 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 04:40:04,505 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 04:40:04,514 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 04:40:04,514 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 04:40:04" (1/1) ... [2023-12-03 04:40:04,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 04:40:04,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 182 states and 288 transitions. [2023-12-03 04:40:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 288 transitions. [2023-12-03 04:40:04,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 04:40:04,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:04,585 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:04,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:04,587 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:04,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 04:40:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:04,887 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:04,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:04,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:04,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:04,974 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 04:40:04,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 04:40:05,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:05,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 181 states and 283 transitions. [2023-12-03 04:40:05,022 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 283 transitions. [2023-12-03 04:40:05,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 04:40:05,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:05,024 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:05,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:05,026 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:05,027 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 04:40:05,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:05,317 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:05,385 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:40:05,387 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:05,549 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 04:40:05,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 04:40:05,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:05,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 188 states and 293 transitions. [2023-12-03 04:40:05,868 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 293 transitions. [2023-12-03 04:40:05,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 04:40:05,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:05,870 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:05,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:05,871 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:05,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 04:40:06,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:06,152 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:06,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:06,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:06,226 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 04:40:06,230 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-03 04:40:06,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:06,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 187 states and 288 transitions. [2023-12-03 04:40:06,238 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 288 transitions. [2023-12-03 04:40:06,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 04:40:06,239 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:06,239 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:06,239 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:06,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:06,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 04:40:06,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:06,541 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:06,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:06,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:40:06,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:06,631 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 29 treesize of output 28 [2023-12-03 04:40:06,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-03 04:40:06,650 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 27 [2023-12-03 04:40:06,658 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 04:40:06,659 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 04:40:06,659 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 04:40:06,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 39 [2023-12-03 04:40:06,845 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 04:40:06,849 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 04:40:07,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:07,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 188 states and 288 transitions. [2023-12-03 04:40:07,653 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 288 transitions. [2023-12-03 04:40:07,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 04:40:07,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:07,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:07,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:07,655 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:07,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 04:40:07,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:07,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:08,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:08,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:08,051 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 04:40:08,055 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 04:40:08,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:08,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 187 states and 277 transitions. [2023-12-03 04:40:08,061 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 277 transitions. [2023-12-03 04:40:08,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 04:40:08,062 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:08,062 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:08,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:08,064 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:08,066 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 04:40:08,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:08,329 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:08,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:08,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:08,461 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:08,464 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 04:40:08,467 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 04:40:08,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:08,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 187 states and 275 transitions. [2023-12-03 04:40:08,473 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 275 transitions. [2023-12-03 04:40:08,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 04:40:08,474 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:08,474 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:08,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:08,477 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:08,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 04:40:08,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:08,820 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:08,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:08,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:08,965 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:08,968 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 04:40:08,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 04:40:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:09,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 187 states and 273 transitions. [2023-12-03 04:40:09,022 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 273 transitions. [2023-12-03 04:40:09,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 04:40:09,023 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:09,023 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:09,024 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:09,025 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:09,029 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 04:40:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:09,508 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:09,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:09,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 04:40:09,659 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:09,867 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 04:40:09,872 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 04:40:11,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:11,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 203 states and 295 transitions. [2023-12-03 04:40:11,947 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 295 transitions. [2023-12-03 04:40:11,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 04:40:11,950 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:11,950 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:11,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:11,951 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:11,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 04:40:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:12,315 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:12,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:12,483 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:12,485 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 04:40:12,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 04:40:12,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:12,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 203 states and 293 transitions. [2023-12-03 04:40:12,496 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 293 transitions. [2023-12-03 04:40:12,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 04:40:12,497 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:12,497 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:12,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:12,498 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:12,504 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 04:40:12,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:12,857 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:13,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:13,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 04:40:13,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:13,122 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 04:40:13,126 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 04:40:13,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:13,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 206 states and 295 transitions. [2023-12-03 04:40:13,138 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 295 transitions. [2023-12-03 04:40:13,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 04:40:13,139 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:13,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:13,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:13,141 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:13,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 04:40:13,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:13,579 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:13,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:13,765 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:13,767 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:13,768 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 04:40:13,774 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 04:40:14,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:14,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 205 states and 282 transitions. [2023-12-03 04:40:14,741 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 282 transitions. [2023-12-03 04:40:14,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 04:40:14,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:14,742 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:14,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:14,742 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:14,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 04:40:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:15,248 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:15,497 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 04:40:15,499 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:15,668 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 04:40:15,673 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 04:40:23,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:40:29,595 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.54s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:40:35,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.87s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:40:45,045 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:40:45,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:45,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 209 states and 285 transitions. [2023-12-03 04:40:45,079 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 285 transitions. [2023-12-03 04:40:45,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 04:40:45,080 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:45,080 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:45,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:45,081 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:45,082 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 04:40:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:45,568 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:45,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 04:40:45,845 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:45,968 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 04:40:45,974 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 04:40:46,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:46,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 220 states and 297 transitions. [2023-12-03 04:40:46,602 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 297 transitions. [2023-12-03 04:40:46,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 04:40:46,602 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:46,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:46,602 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:46,603 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:46,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 04:40:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:47,126 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:47,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:47,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:40:47,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:47,377 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 04:40:47,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 04:40:47,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:47,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 214 states and 288 transitions. [2023-12-03 04:40:47,508 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 288 transitions. [2023-12-03 04:40:47,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 04:40:47,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:47,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:47,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:47,510 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:47,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 04:40:48,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:48,066 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:48,330 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 04:40:48,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:48,467 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 04:40:48,474 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 04:40:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:48,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 217 states and 290 transitions. [2023-12-03 04:40:48,495 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 290 transitions. [2023-12-03 04:40:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 04:40:48,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:48,496 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:48,496 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:48,497 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:48,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 04:40:49,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:49,076 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:49,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:49,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:40:49,423 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:49,552 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 04:40:49,558 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Forceful destruction successful, exit code 0 [2023-12-03 04:40:49,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:40:49,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 218 states and 291 transitions. [2023-12-03 04:40:49,700 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 291 transitions. [2023-12-03 04:40:49,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 04:40:49,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:40:49,700 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:40:49,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:40:49,702 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:40:49,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 04:40:50,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:50,458 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:40:50,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:40:50,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 04:40:50,786 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:40:50,932 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 04:40:50,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-03 04:41:01,443 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 04:41:01,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:01,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 219 states and 292 transitions. [2023-12-03 04:41:01,488 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 292 transitions. [2023-12-03 04:41:01,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 04:41:01,489 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:01,489 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:01,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:01,491 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:01,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 04:41:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:02,278 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:02,617 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 04:41:02,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:02,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 04:41:02,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 04:41:06,145 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:41:08,866 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:41:09,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:09,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 232 states and 309 transitions. [2023-12-03 04:41:09,246 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 309 transitions. [2023-12-03 04:41:09,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 04:41:09,247 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:09,247 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:09,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:09,248 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:09,250 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 04:41:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:10,089 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:10,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 04:41:10,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 04:41:10,483 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Forceful destruction successful, exit code 0 [2023-12-03 04:41:11,776 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:41:11,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:11,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 231 states and 304 transitions. [2023-12-03 04:41:11,789 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 304 transitions. [2023-12-03 04:41:11,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 04:41:11,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:11,790 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:11,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:11,791 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:11,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 04:41:12,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:12,957 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:13,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:13,333 INFO L262 TraceCheckSpWp]: Trace formula consists of 619 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 04:41:13,335 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:13,499 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 04:41:13,514 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-03 04:41:14,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:14,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 232 states and 305 transitions. [2023-12-03 04:41:14,235 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 305 transitions. [2023-12-03 04:41:14,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 04:41:14,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:14,236 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:14,236 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:14,237 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:14,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 04:41:15,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:15,375 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:15,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:15,761 INFO L262 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 04:41:15,764 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:15,925 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 04:41:15,940 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-03 04:41:23,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:41:23,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:23,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 233 states and 306 transitions. [2023-12-03 04:41:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 306 transitions. [2023-12-03 04:41:23,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 04:41:23,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:23,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:23,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:23,566 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:23,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 04:41:24,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:24,754 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:25,176 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 04:41:25,178 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:25,390 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 04:41:25,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-12-03 04:41:34,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.25s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:41:34,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:34,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 234 states and 307 transitions. [2023-12-03 04:41:34,482 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 307 transitions. [2023-12-03 04:41:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 04:41:34,483 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:34,483 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:34,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:34,484 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:34,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 04:41:35,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:35,811 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:36,195 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 04:41:36,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:36,408 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 04:41:36,424 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 04:41:47,289 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 04:41:47,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:47,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 235 states and 308 transitions. [2023-12-03 04:41:47,334 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 308 transitions. [2023-12-03 04:41:47,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 04:41:47,334 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:47,334 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:47,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:47,336 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:47,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 04:41:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:48,739 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:49,199 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 04:41:49,201 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:49,451 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 04:41:49,470 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 04:41:50,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:50,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 236 states and 309 transitions. [2023-12-03 04:41:50,343 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 309 transitions. [2023-12-03 04:41:50,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 04:41:50,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:50,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:50,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:50,345 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:50,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 04:41:51,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:51,842 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:52,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:52,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 04:41:52,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:52,497 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 04:41:52,517 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 04:41:53,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:41:53,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 237 states and 310 transitions. [2023-12-03 04:41:53,483 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 310 transitions. [2023-12-03 04:41:53,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-03 04:41:53,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:41:53,484 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:41:53,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:41:53,485 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:41:53,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 04:41:54,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:54,995 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:41:55,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:41:55,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 04:41:55,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:41:55,664 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 04:41:55,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 04:42:06,692 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 04:42:06,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:06,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 238 states and 311 transitions. [2023-12-03 04:42:06,749 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 311 transitions. [2023-12-03 04:42:06,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 04:42:06,749 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:06,750 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:06,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:06,750 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:06,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 04:42:08,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:08,326 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:08,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:08,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 04:42:08,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:09,085 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 04:42:09,106 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 04:42:17,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:42:17,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 239 states and 312 transitions. [2023-12-03 04:42:17,441 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 312 transitions. [2023-12-03 04:42:17,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-03 04:42:17,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:17,442 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:17,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:17,443 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:17,443 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 04:42:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:19,087 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:19,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:19,543 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 04:42:19,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:19,822 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 04:42:19,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 04:42:20,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:20,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 240 states and 313 transitions. [2023-12-03 04:42:20,908 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 313 transitions. [2023-12-03 04:42:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 04:42:20,909 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:20,909 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:20,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:20,910 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:20,911 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-03 04:42:22,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:22,601 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:23,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 04:42:23,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:23,384 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 04:42:23,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-03 04:42:24,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:24,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 241 states and 314 transitions. [2023-12-03 04:42:24,591 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 314 transitions. [2023-12-03 04:42:24,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 04:42:24,592 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:24,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:24,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:24,593 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:24,594 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-03 04:42:26,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:26,291 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:26,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:26,744 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 04:42:26,746 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:27,068 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 04:42:27,094 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-03 04:42:35,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.88s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:42:35,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:35,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 242 states and 315 transitions. [2023-12-03 04:42:35,303 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 315 transitions. [2023-12-03 04:42:35,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 04:42:35,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:35,303 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:35,303 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:35,304 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:35,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-03 04:42:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:37,132 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:37,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 04:42:37,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:37,930 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 04:42:37,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-03 04:42:46,706 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:42:46,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:46,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 243 states and 316 transitions. [2023-12-03 04:42:46,750 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 316 transitions. [2023-12-03 04:42:46,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 04:42:46,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:46,751 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:46,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:46,752 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:46,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-03 04:42:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:48,472 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:48,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:48,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 04:42:48,921 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:49,294 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 04:42:49,321 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-03 04:42:50,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:50,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 244 states and 317 transitions. [2023-12-03 04:42:50,637 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 317 transitions. [2023-12-03 04:42:50,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 04:42:50,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:50,637 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:50,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:50,638 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:50,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-03 04:42:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:52,600 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:52,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:53,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 04:42:53,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:53,405 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 04:42:53,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-03 04:42:54,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:42:54,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 245 states and 318 transitions. [2023-12-03 04:42:54,892 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 318 transitions. [2023-12-03 04:42:54,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 04:42:54,892 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:42:54,892 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:42:54,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:42:54,893 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:42:54,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-03 04:42:56,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:56,833 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:42:57,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:42:57,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 04:42:57,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:42:57,680 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 04:42:57,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-03 04:43:04,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.92s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:43:04,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:04,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 246 states and 319 transitions. [2023-12-03 04:43:04,128 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 319 transitions. [2023-12-03 04:43:04,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-03 04:43:04,129 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:04,129 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:04,129 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:04,130 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:04,132 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-03 04:43:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:06,187 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:43:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:06,665 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 04:43:06,667 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:43:07,059 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 04:43:07,091 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-03 04:43:18,607 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 04:43:18,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:18,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 247 states and 320 transitions. [2023-12-03 04:43:18,655 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 320 transitions. [2023-12-03 04:43:18,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 04:43:18,656 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:18,656 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:18,656 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:18,657 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:18,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-03 04:43:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:20,864 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:43:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:21,272 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 04:43:21,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:43:21,685 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 04:43:21,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-03 04:43:23,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:23,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 248 states and 321 transitions. [2023-12-03 04:43:23,356 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 321 transitions. [2023-12-03 04:43:23,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 04:43:23,357 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:23,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:23,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:23,358 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:23,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-03 04:43:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:25,332 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:43:25,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:25,797 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 04:43:25,800 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:43:26,232 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 04:43:26,265 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-03 04:43:27,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:27,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 249 states and 322 transitions. [2023-12-03 04:43:27,946 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 322 transitions. [2023-12-03 04:43:27,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-03 04:43:27,946 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:27,946 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:27,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:27,947 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:27,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-03 04:43:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:30,202 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:43:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:30,659 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 04:43:30,661 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:43:31,124 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 04:43:31,158 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-03 04:43:39,525 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:43:39,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:39,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 250 states and 323 transitions. [2023-12-03 04:43:39,572 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 323 transitions. [2023-12-03 04:43:39,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 04:43:39,573 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:39,573 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:39,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:39,574 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:39,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-03 04:43:41,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:41,919 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:43:42,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:42,433 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 04:43:42,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:43:42,904 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 04:43:42,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-03 04:43:51,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:43:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 251 states and 324 transitions. [2023-12-03 04:43:51,653 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 324 transitions. [2023-12-03 04:43:51,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-03 04:43:51,653 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:51,654 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:51,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:51,654 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:51,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-03 04:43:53,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:53,907 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:43:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:54,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 04:43:54,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:43:54,952 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 04:43:54,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-03 04:43:56,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:43:56,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 252 states and 325 transitions. [2023-12-03 04:43:56,874 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 325 transitions. [2023-12-03 04:43:56,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 04:43:56,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:43:56,875 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:43:56,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:43:56,876 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:43:56,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-03 04:43:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:59,384 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:43:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:43:59,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 04:43:59,880 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:44:00,406 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 04:44:00,444 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-03 04:44:02,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:44:02,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 253 states and 326 transitions. [2023-12-03 04:44:02,530 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 326 transitions. [2023-12-03 04:44:02,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-03 04:44:02,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:44:02,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:44:02,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:44:02,531 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:44:02,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-03 04:44:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:05,080 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:44:05,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:05,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 04:44:05,576 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:44:06,206 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 04:44:06,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-03 04:44:16,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:44:16,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:44:16,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 254 states and 327 transitions. [2023-12-03 04:44:16,113 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 327 transitions. [2023-12-03 04:44:16,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 04:44:16,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:44:16,114 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:44:16,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:44:16,115 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:44:16,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-03 04:44:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:18,658 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:44:19,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:19,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 04:44:19,128 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:44:19,747 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 04:44:19,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-03 04:44:26,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:44:26,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:44:26,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 255 states and 328 transitions. [2023-12-03 04:44:26,376 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 328 transitions. [2023-12-03 04:44:26,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 04:44:26,376 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:44:26,376 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:44:26,376 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:44:26,377 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:44:26,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-03 04:44:29,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:29,198 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:44:29,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:29,680 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 04:44:29,682 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:44:30,211 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 04:44:30,252 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-03 04:44:32,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:44:32,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 256 states and 329 transitions. [2023-12-03 04:44:32,463 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 329 transitions. [2023-12-03 04:44:32,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-03 04:44:32,464 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:44:32,464 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:44:32,464 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:44:32,465 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:44:32,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-03 04:44:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:35,135 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:44:35,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:35,618 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 04:44:35,620 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:44:36,218 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 04:44:36,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-03 04:44:38,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:44:38,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 257 states and 330 transitions. [2023-12-03 04:44:38,613 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 330 transitions. [2023-12-03 04:44:38,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-03 04:44:38,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:44:38,621 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:44:38,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:44:38,622 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:44:38,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-03 04:44:41,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:41,274 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:44:41,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:41,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 04:44:41,862 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:44:42,508 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 04:44:42,535 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Forceful destruction successful, exit code 0 [2023-12-03 04:44:54,969 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 04:44:55,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:44:55,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 258 states and 331 transitions. [2023-12-03 04:44:55,024 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 331 transitions. [2023-12-03 04:44:55,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-03 04:44:55,024 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:44:55,024 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:44:55,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:44:55,025 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:44:55,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-03 04:44:57,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:57,663 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:44:58,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:44:58,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 04:44:58,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:44:58,766 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 04:44:58,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-03 04:45:09,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:45:09,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:09,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 259 states and 332 transitions. [2023-12-03 04:45:09,191 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 332 transitions. [2023-12-03 04:45:09,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 04:45:09,191 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:09,191 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:45:09,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:45:09,192 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:45:09,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-03 04:45:12,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:12,293 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:45:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:12,793 INFO L262 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 04:45:12,795 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:45:13,462 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 04:45:13,489 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-03 04:45:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:16,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 260 states and 333 transitions. [2023-12-03 04:45:16,005 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 333 transitions. [2023-12-03 04:45:16,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 04:45:16,005 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:16,005 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:45:16,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:45:16,006 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:45:16,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-03 04:45:18,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:18,680 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:45:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:19,204 INFO L262 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 04:45:19,206 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:45:19,904 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 04:45:19,932 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-03 04:45:22,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:22,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 261 states and 334 transitions. [2023-12-03 04:45:22,557 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 334 transitions. [2023-12-03 04:45:22,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 04:45:22,558 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:22,558 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:45:22,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:45:22,559 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:45:22,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-03 04:45:25,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:25,627 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:45:26,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:26,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 04:45:26,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:45:26,836 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 04:45:26,865 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-03 04:45:39,685 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 04:45:39,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:39,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 262 states and 335 transitions. [2023-12-03 04:45:39,742 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 335 transitions. [2023-12-03 04:45:39,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 04:45:39,743 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:39,743 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:45:39,743 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:45:39,744 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:45:39,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-03 04:45:42,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:42,887 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:45:43,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:43,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 04:45:43,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:45:44,124 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 04:45:44,153 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-03 04:45:55,033 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:45:55,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:45:55,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 263 states and 336 transitions. [2023-12-03 04:45:55,093 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 336 transitions. [2023-12-03 04:45:55,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-03 04:45:55,093 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:45:55,093 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:45:55,093 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:45:55,094 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:45:55,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-03 04:45:58,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:58,572 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:45:59,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:45:59,091 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 04:45:59,094 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:45:59,900 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 04:45:59,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-03 04:46:03,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:03,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 264 states and 337 transitions. [2023-12-03 04:46:03,049 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 337 transitions. [2023-12-03 04:46:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 04:46:03,049 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:03,049 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:03,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:46:03,050 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:46:03,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-03 04:46:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:06,305 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:46:06,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:06,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 04:46:06,883 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:46:07,659 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 04:46:07,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-03 04:46:10,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 265 states and 338 transitions. [2023-12-03 04:46:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 338 transitions. [2023-12-03 04:46:10,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-03 04:46:10,808 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:10,808 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:10,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:46:10,809 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:46:10,810 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-03 04:46:14,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:14,487 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:46:14,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:15,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 04:46:15,016 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:46:15,845 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 04:46:15,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-03 04:46:29,231 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 04:46:29,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 266 states and 339 transitions. [2023-12-03 04:46:29,294 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 339 transitions. [2023-12-03 04:46:29,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 04:46:29,294 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:29,294 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:29,294 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:46:29,295 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:46:29,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-03 04:46:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:32,870 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:46:33,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:33,412 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 04:46:33,415 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:46:34,228 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 04:46:34,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-03 04:46:47,695 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 04:46:47,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:47,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 267 states and 340 transitions. [2023-12-03 04:46:47,749 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 340 transitions. [2023-12-03 04:46:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-03 04:46:47,750 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:47,750 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:47,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:46:47,751 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:46:47,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-03 04:46:51,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:51,440 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:46:51,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:51,998 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 04:46:52,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:46:52,906 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 04:46:52,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-03 04:46:56,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:46:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 268 states and 341 transitions. [2023-12-03 04:46:56,297 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 341 transitions. [2023-12-03 04:46:56,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 04:46:56,298 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:46:56,298 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:46:56,298 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:46:56,299 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:46:56,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-03 04:46:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:46:59,957 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:47:00,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:00,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 04:47:00,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:47:01,337 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 04:47:01,373 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-03 04:47:04,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 269 states and 342 transitions. [2023-12-03 04:47:04,839 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 342 transitions. [2023-12-03 04:47:04,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 04:47:04,840 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:04,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:04,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:47:04,841 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:47:04,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-03 04:47:08,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:08,633 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:47:09,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:09,238 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 04:47:09,241 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:47:10,048 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 04:47:10,084 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-03 04:47:19,637 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:47:19,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:19,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 270 states and 343 transitions. [2023-12-03 04:47:19,697 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 343 transitions. [2023-12-03 04:47:19,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-03 04:47:19,697 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:19,697 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:19,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:47:19,698 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:47:19,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-03 04:47:23,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:23,309 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:47:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:23,877 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 04:47:23,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:47:24,859 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 04:47:24,901 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-03 04:47:38,769 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 04:47:38,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:38,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 271 states and 344 transitions. [2023-12-03 04:47:38,838 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 344 transitions. [2023-12-03 04:47:38,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-03 04:47:38,838 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:38,838 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:38,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:47:38,839 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:47:38,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-03 04:47:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:42,769 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:47:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:43,292 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 04:47:43,295 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:47:44,184 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 04:47:44,222 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-03 04:47:47,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:47,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 345 states to 272 states and 345 transitions. [2023-12-03 04:47:47,866 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2023-12-03 04:47:47,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-03 04:47:47,866 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:47,866 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:47,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:47:47,867 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:47:47,868 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-03 04:47:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:51,975 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:47:52,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:47:52,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 04:47:52,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:47:53,504 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 04:47:53,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-03 04:47:57,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:47:57,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 273 states and 346 transitions. [2023-12-03 04:47:57,417 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 346 transitions. [2023-12-03 04:47:57,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-03 04:47:57,417 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:47:57,418 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:47:57,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:47:57,419 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:47:57,420 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-03 04:48:01,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:01,669 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:48:02,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:02,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 04:48:02,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:48:03,222 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 04:48:03,261 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2023-12-03 04:48:17,078 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 04:48:17,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:48:17,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 274 states and 347 transitions. [2023-12-03 04:48:17,140 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 347 transitions. [2023-12-03 04:48:17,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-03 04:48:17,141 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:48:17,141 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:48:17,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:48:17,142 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:48:17,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-03 04:48:21,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:21,450 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:48:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:22,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 04:48:22,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:48:23,090 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 04:48:23,130 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-03 04:48:37,078 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 04:48:37,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:48:37,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 275 states and 348 transitions. [2023-12-03 04:48:37,147 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 348 transitions. [2023-12-03 04:48:37,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 04:48:37,147 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:48:37,147 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:48:37,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:48:37,149 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:48:37,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-03 04:48:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:41,583 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:48:42,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:42,146 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 04:48:42,149 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:48:43,262 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 04:48:43,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-03 04:48:47,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:48:47,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 276 states and 349 transitions. [2023-12-03 04:48:47,569 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 349 transitions. [2023-12-03 04:48:47,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 04:48:47,569 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:48:47,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:48:47,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:48:47,570 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:48:47,571 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-03 04:48:51,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:51,748 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:48:52,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:48:52,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 04:48:52,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:48:53,403 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 04:48:53,446 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-03 04:48:57,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:48:57,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 277 states and 350 transitions. [2023-12-03 04:48:57,900 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 350 transitions. [2023-12-03 04:48:57,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-03 04:48:57,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:48:57,901 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:48:57,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:48:57,902 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:48:57,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-03 04:49:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:02,182 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:49:02,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:02,759 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 04:49:02,762 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:49:03,834 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 04:49:03,877 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-03 04:49:10,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 04:49:10,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:49:10,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 278 states and 351 transitions. [2023-12-03 04:49:10,785 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 351 transitions. [2023-12-03 04:49:10,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-03 04:49:10,785 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:49:10,785 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:49:10,785 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:49:10,786 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:49:10,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-03 04:49:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:15,488 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:49:16,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:16,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 1136 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 04:49:16,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:49:17,104 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 04:49:17,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-03 04:49:31,522 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 04:49:31,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:49:31,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 279 states and 352 transitions. [2023-12-03 04:49:31,580 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 352 transitions. [2023-12-03 04:49:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-03 04:49:31,581 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:49:31,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:49:31,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:49:31,582 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:49:31,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-03 04:49:36,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:36,298 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:49:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:36,902 INFO L262 TraceCheckSpWp]: Trace formula consists of 1147 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 04:49:36,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:49:38,036 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 04:49:38,079 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2023-12-03 04:49:42,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:49:42,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 280 states and 353 transitions. [2023-12-03 04:49:42,644 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 353 transitions. [2023-12-03 04:49:42,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-03 04:49:42,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:49:42,645 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:49:42,645 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:49:42,646 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:49:42,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-12-03 04:49:47,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:47,300 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 04:49:47,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 04:49:47,882 INFO L262 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-03 04:49:47,884 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 04:49:48,962 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 04:49:49,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-12-03 04:49:53,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 04:49:53,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 281 states and 354 transitions. [2023-12-03 04:49:53,619 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 354 transitions. [2023-12-03 04:49:53,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-03 04:49:53,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 04:49:53,620 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 04:49:53,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 04:49:53,621 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 04:49:53,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fa2cc609-e457-45bc-a9b4-c62f786e7b52/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process