./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/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_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/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_aa6158d1-6f95-4d7e-8196-881795bfd608/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 e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:55:16,454 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:55:16,519 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-03 01:55:16,524 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:55:16,525 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:55:16,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:55:16,548 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:55:16,549 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:55:16,550 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:55:16,550 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:55:16,551 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:55:16,551 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:55:16,552 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:55:16,552 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:55:16,552 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:55:16,553 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:55:16,553 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:55:16,554 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:55:16,554 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:55:16,554 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:55:16,555 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:55:16,559 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:55:16,559 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:55:16,560 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:55:16,560 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:55:16,561 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:55:16,561 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:55:16,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:55:16,562 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:55:16,562 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:55:16,563 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:55:16,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:55:16,563 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_aa6158d1-6f95-4d7e-8196-881795bfd608/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2023-12-03 01:55:16,775 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:55:16,797 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:55:16,800 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:55:16,801 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:55:16,802 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:55:16,803 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2023-12-03 01:55:19,602 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:55:19,943 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:55:19,944 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2023-12-03 01:55:19,965 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data/70b9db2ce/7724f2bb1c4c4ee79605d90eadf4296f/FLAGa8dfaa672 [2023-12-03 01:55:19,980 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data/70b9db2ce/7724f2bb1c4c4ee79605d90eadf4296f [2023-12-03 01:55:19,982 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:55:19,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:55:19,985 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:55:19,985 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:55:19,989 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:55:19,990 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:55:19" (1/1) ... [2023-12-03 01:55:19,991 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a19c887 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:19, skipping insertion in model container [2023-12-03 01:55:19,991 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:55:19" (1/1) ... [2023-12-03 01:55:20,069 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:55:20,729 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:55:20,742 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:55:20,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:55:20,935 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:55:20,943 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:55:20,943 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20 WrapperNode [2023-12-03 01:55:20,944 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:55:20,945 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:55:20,945 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:55:20,945 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:55:20,952 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:20,995 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,081 INFO L138 Inliner]: procedures = 282, calls = 351, calls flagged for inlining = 26, calls inlined = 40, statements flattened = 1725 [2023-12-03 01:55:21,082 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:55:21,082 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:55:21,082 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:55:21,083 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:55:21,093 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,161 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,185 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,207 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:55:21,208 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:55:21,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:55:21,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:55:21,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:55:20" (1/1) ... [2023-12-03 01:55:21,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:55:21,228 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:55:21,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:55:21,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:55:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:55:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 01:55:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 01:55:21,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:55:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:55:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:55:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 01:55:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:55:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 01:55:21,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:55:21,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:55:21,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:55:21,512 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:55:21,514 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:55:23,043 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:55:24,498 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:55:24,499 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-03 01:55:24,500 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:55:24 BoogieIcfgContainer [2023-12-03 01:55:24,500 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:55:24,501 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:55:24,501 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:55:24,510 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:55:24,510 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:55:24" (1/1) ... [2023-12-03 01:55:24,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:55:24,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:24,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 209 states and 330 transitions. [2023-12-03 01:55:24,574 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 330 transitions. [2023-12-03 01:55:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 01:55:24,576 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:24,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:24,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:24,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:55:24,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:24,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 208 states and 325 transitions. [2023-12-03 01:55:24,762 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 325 transitions. [2023-12-03 01:55:24,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 01:55:24,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:24,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:24,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:24,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:55:25,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:25,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 210 states and 328 transitions. [2023-12-03 01:55:25,009 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 328 transitions. [2023-12-03 01:55:25,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 01:55:25,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:25,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:25,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:25,157 INFO L262 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:55:25,163 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:25,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:55:25,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:25,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 209 states and 317 transitions. [2023-12-03 01:55:25,177 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 317 transitions. [2023-12-03 01:55:25,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 01:55:25,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:25,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:25,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:25,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:55:25,308 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:25,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:55:25,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:25,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 209 states and 315 transitions. [2023-12-03 01:55:25,317 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 315 transitions. [2023-12-03 01:55:25,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 01:55:25,318 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:25,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:25,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:55:25,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:25,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:55:35,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:55:35,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:35,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 209 states and 313 transitions. [2023-12-03 01:55:35,539 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 313 transitions. [2023-12-03 01:55:35,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 01:55:35,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:35,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:36,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:55:36,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:36,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:55:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:55:36,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 206 states and 310 transitions. [2023-12-03 01:55:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 310 transitions. [2023-12-03 01:55:36,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 01:55:36,573 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:55:36,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:55:36,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:55:36,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:55:36,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:55:36,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:55:47,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:55:57,327 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:07,357 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:17,387 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:17,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 224 states and 332 transitions. [2023-12-03 01:56:17,740 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 332 transitions. [2023-12-03 01:56:17,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 01:56:17,742 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:17,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:56:17,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:17,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:56:17,954 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:17,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:56:18,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:18,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 223 states and 319 transitions. [2023-12-03 01:56:18,008 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 319 transitions. [2023-12-03 01:56:18,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 01:56:18,008 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:18,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:56:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:18,271 INFO L262 TraceCheckSpWp]: Trace formula consists of 371 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:56:18,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:18,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:56:18,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:18,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 223 states and 318 transitions. [2023-12-03 01:56:18,431 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 318 transitions. [2023-12-03 01:56:18,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 01:56:18,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:18,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:56:18,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:18,681 INFO L262 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:56:18,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:18,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:56:18,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:18,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 217 states and 309 transitions. [2023-12-03 01:56:18,698 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 309 transitions. [2023-12-03 01:56:18,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 01:56:18,698 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:18,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:56:18,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:18,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:56:18,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:18,927 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:56:28,940 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:28,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:56:28,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 217 states and 307 transitions. [2023-12-03 01:56:28,983 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 307 transitions. [2023-12-03 01:56:28,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 01:56:28,984 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:56:28,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:56:29,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:56:29,234 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:56:29,237 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:56:29,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:56:40,166 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:56:50,200 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:00,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:10,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:10,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:10,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 230 states and 323 transitions. [2023-12-03 01:57:10,399 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 323 transitions. [2023-12-03 01:57:10,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 01:57:10,400 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:10,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:10,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:10,641 INFO L262 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:57:10,644 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:10,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:57:20,717 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:30,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:40,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:50,820 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:57:50,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:57:50,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 233 states and 325 transitions. [2023-12-03 01:57:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 325 transitions. [2023-12-03 01:57:50,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 01:57:50,887 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:57:50,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:57:51,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:57:51,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:57:51,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:57:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:58:01,231 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:11,291 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:21,460 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.17s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:31,507 WARN L539 Checker$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 01:58:31,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:31,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 236 states and 327 transitions. [2023-12-03 01:58:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2023-12-03 01:58:31,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-03 01:58:31,554 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:31,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:58:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:31,850 INFO L262 TraceCheckSpWp]: Trace formula consists of 562 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:58:31,853 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:31,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:58:32,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:32,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 343 states to 248 states and 343 transitions. [2023-12-03 01:58:32,294 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 343 transitions. [2023-12-03 01:58:32,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 01:58:32,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:32,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:58:32,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:32,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 682 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:58:32,600 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:32,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:58:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:58:32,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 247 states and 338 transitions. [2023-12-03 01:58:32,632 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 338 transitions. [2023-12-03 01:58:32,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 01:58:32,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:58:32,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:58:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:58:32,978 INFO L262 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:58:32,981 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:58:33,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:58:43,707 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:58:53,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:59:03,781 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:59:13,818 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:59:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:14,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 262 states and 356 transitions. [2023-12-03 01:59:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 356 transitions. [2023-12-03 01:59:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 01:59:14,099 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:14,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:15,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:59:15,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:15,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:15,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:15,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 263 states and 357 transitions. [2023-12-03 01:59:15,703 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 357 transitions. [2023-12-03 01:59:15,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-03 01:59:15,704 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:15,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:25,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:59:25,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 710 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 01:59:25,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:59:25,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:59:25,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:59:25,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 264 states and 358 transitions. [2023-12-03 01:59:25,813 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 358 transitions. [2023-12-03 01:59:25,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 01:59:25,813 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:59:25,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:59:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 01:59:36,211 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck has thrown an exception: java.lang.UnsupportedOperationException: Solver said unknown at de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.CFGWalker.runObserver(CFGWalker.java:57) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-12-03 01:59:36,215 INFO L158 Benchmark]: Toolchain (without parser) took 256231.03ms. Allocated memory was 153.1MB in the beginning and 293.6MB in the end (delta: 140.5MB). Free memory was 116.5MB in the beginning and 199.2MB in the end (delta: -82.7MB). Peak memory consumption was 61.7MB. Max. memory is 16.1GB. [2023-12-03 01:59:36,215 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 94.4MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:59:36,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 959.45ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 116.5MB in the beginning and 161.3MB in the end (delta: -44.7MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. [2023-12-03 01:59:36,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 136.84ms. Allocated memory is still 201.3MB. Free memory was 161.3MB in the beginning and 150.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:59:36,217 INFO L158 Benchmark]: Boogie Preprocessor took 124.75ms. Allocated memory is still 201.3MB. Free memory was 150.8MB in the beginning and 139.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:59:36,218 INFO L158 Benchmark]: RCFGBuilder took 3292.57ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 139.3MB in the beginning and 83.5MB in the end (delta: 55.7MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. [2023-12-03 01:59:36,218 INFO L158 Benchmark]: CodeCheck took 251712.40ms. Allocated memory was 243.3MB in the beginning and 293.6MB in the end (delta: 50.3MB). Free memory was 83.5MB in the beginning and 199.2MB in the end (delta: -115.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:59:36,222 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 0.19ms. Allocated memory is still 94.4MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 959.45ms. Allocated memory was 153.1MB in the beginning and 201.3MB in the end (delta: 48.2MB). Free memory was 116.5MB in the beginning and 161.3MB in the end (delta: -44.7MB). Peak memory consumption was 52.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 136.84ms. Allocated memory is still 201.3MB. Free memory was 161.3MB in the beginning and 150.8MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 124.75ms. Allocated memory is still 201.3MB. Free memory was 150.8MB in the beginning and 139.3MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3292.57ms. Allocated memory was 201.3MB in the beginning and 243.3MB in the end (delta: 41.9MB). Free memory was 139.3MB in the beginning and 83.5MB in the end (delta: 55.7MB). Peak memory consumption was 98.7MB. Max. memory is 16.1GB. * CodeCheck took 251712.40ms. Allocated memory was 243.3MB in the beginning and 293.6MB in the end (delta: 50.3MB). Free memory was 83.5MB in the beginning and 199.2MB in the end (delta: -115.7MB). There was no memory consumed. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 01:59:36,417 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/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_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/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_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/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_aa6158d1-6f95-4d7e-8196-881795bfd608/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 e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:59:38,322 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:59:38,413 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-03 01:59:38,450 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:59:38,451 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:59:38,452 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:59:38,453 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:59:38,453 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:59:38,454 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:59:38,455 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:59:38,456 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:59:38,456 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:59:38,457 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:59:38,458 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:59:38,458 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:59:38,459 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:59:38,460 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:59:38,461 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:59:38,462 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:59:38,462 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:59:38,463 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:59:38,466 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:59:38,467 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:59:38,468 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:59:38,468 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:59:38,469 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:59:38,469 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:59:38,469 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:38,470 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:59:38,470 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:59:38,471 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:59:38,472 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:59:38,472 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:59:38,472 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:59:38,473 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:59:38,473 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:59:38,473 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:59:38,473 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_aa6158d1-6f95-4d7e-8196-881795bfd608/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4ea247b245ebcaf5e735452e89c4110c7b9dc9b43836e98484a894783fc3462 [2023-12-03 01:59:38,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:59:38,818 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:59:38,821 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:59:38,823 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:59:38,823 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:59:38,825 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2023-12-03 01:59:41,798 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:59:42,160 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:59:42,161 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/sv-benchmarks/c/uthash-2.0.2/uthash_FNV_test6-2.i [2023-12-03 01:59:42,185 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data/dc97db143/0223b26deb6c42ffa08a6bc0d9e4a329/FLAG5832980ea [2023-12-03 01:59:42,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/data/dc97db143/0223b26deb6c42ffa08a6bc0d9e4a329 [2023-12-03 01:59:42,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:59:42,211 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:59:42,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:59:42,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:59:42,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:59:42,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:59:42" (1/1) ... [2023-12-03 01:59:42,223 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9580d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:42, skipping insertion in model container [2023-12-03 01:59:42,223 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:59:42" (1/1) ... [2023-12-03 01:59:42,341 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:59:43,208 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:59:43,228 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 01:59:43,259 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:59:43,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:59:43,399 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:59:43,514 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:59:43,591 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:59:43,600 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:59:43,601 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43 WrapperNode [2023-12-03 01:59:43,601 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:59:43,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:59:43,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:59:43,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:59:43,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,655 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,727 INFO L138 Inliner]: procedures = 285, calls = 351, calls flagged for inlining = 26, calls inlined = 40, statements flattened = 1390 [2023-12-03 01:59:43,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:59:43,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:59:43,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:59:43,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:59:43,740 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,752 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,828 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,857 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:59:43,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:59:43,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:59:43,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:59:43,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:59:43" (1/1) ... [2023-12-03 01:59:43,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:59:43,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:59:43,911 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:59:43,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:59:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-03 01:59:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 01:59:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:59:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 01:59:43,957 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 01:59:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:59:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 01:59:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:59:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 01:59:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:59:43,958 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 01:59:43,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:59:43,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:59:44,224 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:59:44,227 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 02:00:00,772 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 02:00:01,321 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 02:00:01,321 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-03 02:00:01,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:00:01 BoogieIcfgContainer [2023-12-03 02:00:01,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 02:00:01,324 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 02:00:01,324 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 02:00:01,336 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 02:00:01,336 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 02:00:01" (1/1) ... [2023-12-03 02:00:01,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 02:00:01,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:01,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 209 states and 330 transitions. [2023-12-03 02:00:01,420 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 330 transitions. [2023-12-03 02:00:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-03 02:00:01,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:01,424 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:01,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:01,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:01,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 02:00:01,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:01,806 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:01,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:01,884 INFO L262 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:01,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:01,914 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 02:00:01,925 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 02:00:01,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:01,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 208 states and 325 transitions. [2023-12-03 02:00:01,972 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 325 transitions. [2023-12-03 02:00:01,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:00:01,974 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:01,974 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:01,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:01,976 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:01,978 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 02:00:02,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:02,339 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:02,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:00:02,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:02,622 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 02:00:02,627 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 02:00:03,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:03,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 215 states and 335 transitions. [2023-12-03 02:00:03,112 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 335 transitions. [2023-12-03 02:00:03,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-03 02:00:03,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:03,114 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:03,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:03,117 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:03,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 02:00:03,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:03,463 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:03,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:03,535 INFO L262 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:03,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:03,539 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 02:00:03,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-03 02:00:03,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:03,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 214 states and 330 transitions. [2023-12-03 02:00:03,553 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 330 transitions. [2023-12-03 02:00:03,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-12-03 02:00:03,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:03,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:03,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:03,557 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:03,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 02:00:03,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:03,883 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:03,951 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 02:00:03,955 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:04,195 INFO L349 Elim1Store]: treesize reduction 64, result has 22.9 percent of original size [2023-12-03 02:00:04,196 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 102 [2023-12-03 02:00:04,217 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:00:04,218 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:00:04,220 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:00:04,251 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 02:00:04,292 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:00:04,293 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:00:04,294 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 02:00:04,315 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 02:00:04,527 INFO L160 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 02:00:04,529 INFO L165 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2023-12-03 02:00:04,570 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 31 [2023-12-03 02:00:04,583 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 17 [2023-12-03 02:00:04,693 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 02:00:04,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-03 02:00:04,733 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 02:00:04,738 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-03 02:00:05,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:05,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 215 states and 330 transitions. [2023-12-03 02:00:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 330 transitions. [2023-12-03 02:00:05,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-03 02:00:05,999 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:05,999 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:05,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:06,000 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:06,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 02:00:06,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:06,312 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:06,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:06,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:06,452 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:06,455 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 02:00:06,459 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 02:00:06,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:06,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 214 states and 319 transitions. [2023-12-03 02:00:06,466 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 319 transitions. [2023-12-03 02:00:06,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-03 02:00:06,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:06,467 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:06,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:06,468 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:06,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 02:00:06,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:06,781 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:06,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:06,922 INFO L262 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:06,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:06,927 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 02:00:06,931 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 02:00:06,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:06,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 214 states and 317 transitions. [2023-12-03 02:00:06,938 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 317 transitions. [2023-12-03 02:00:06,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-03 02:00:06,939 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:06,939 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:06,939 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:06,940 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:06,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 02:00:07,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:07,314 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:07,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:07,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:07,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:07,488 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 02:00:07,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 02:00:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:07,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 214 states and 315 transitions. [2023-12-03 02:00:07,516 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 315 transitions. [2023-12-03 02:00:07,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-03 02:00:07,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:07,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:07,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:07,518 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:07,521 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 02:00:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:08,006 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:08,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:08,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:00:08,169 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:08,383 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 02:00:08,389 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 02:00:10,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:10,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 230 states and 337 transitions. [2023-12-03 02:00:10,669 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 337 transitions. [2023-12-03 02:00:10,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-03 02:00:10,672 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:10,672 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:10,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:10,673 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:10,674 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 02:00:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:11,083 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:11,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:11,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:11,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:11,249 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 02:00:11,254 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 02:00:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:11,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 230 states and 335 transitions. [2023-12-03 02:00:11,261 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 335 transitions. [2023-12-03 02:00:11,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 02:00:11,263 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:11,263 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:11,263 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:11,264 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:11,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 02:00:11,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:11,712 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:11,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:00:11,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:12,011 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 02:00:12,018 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 02:00:12,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:12,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 233 states and 337 transitions. [2023-12-03 02:00:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 337 transitions. [2023-12-03 02:00:12,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-03 02:00:12,031 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:12,031 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:12,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:12,032 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:12,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 02:00:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:12,524 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:12,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:12,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:12,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:12,762 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 02:00:12,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 02:00:13,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 232 states and 324 transitions. [2023-12-03 02:00:13,732 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 324 transitions. [2023-12-03 02:00:13,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2023-12-03 02:00:13,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:13,732 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:13,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:13,733 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:13,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 02:00:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:14,201 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:14,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:14,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:00:14,455 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:14,619 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 02:00:14,625 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 02:00:25,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:00:35,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:00:45,196 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:00:55,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:00:55,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 236 states and 327 transitions. [2023-12-03 02:00:55,256 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 327 transitions. [2023-12-03 02:00:55,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-12-03 02:00:55,257 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:55,257 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:55,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:55,258 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:55,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 02:00:55,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:55,799 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:56,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:56,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:00:56,052 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:56,162 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 02:00:56,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 02:00:56,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:56,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 247 states and 339 transitions. [2023-12-03 02:00:56,628 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 339 transitions. [2023-12-03 02:00:56,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-12-03 02:00:56,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:56,629 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:56,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:56,630 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:56,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 02:00:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:57,224 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:57,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:00:57,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:57,496 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 02:00:57,503 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-12-03 02:00:57,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:57,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 241 states and 330 transitions. [2023-12-03 02:00:57,569 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 330 transitions. [2023-12-03 02:00:57,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2023-12-03 02:00:57,569 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:57,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:57,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:57,570 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:57,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 02:00:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:58,200 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:58,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 02:00:58,498 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:58,664 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 02:00:58,672 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 02:00:58,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:00:58,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 244 states and 332 transitions. [2023-12-03 02:00:58,702 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 332 transitions. [2023-12-03 02:00:58,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 02:00:58,703 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:00:58,703 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:00:58,703 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:00:58,704 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:00:58,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 02:00:59,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:59,376 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:00:59,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:00:59,735 INFO L262 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:00:59,737 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:00:59,887 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 02:00:59,895 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 02:01:00,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:00,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 245 states and 333 transitions. [2023-12-03 02:01:00,070 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 333 transitions. [2023-12-03 02:01:00,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-03 02:01:00,070 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:00,071 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:00,071 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:00,072 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:00,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 02:01:00,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:00,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:01,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:01:01,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:01,353 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 02:01:01,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 02:01:01,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 334 states to 246 states and 334 transitions. [2023-12-03 02:01:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 334 transitions. [2023-12-03 02:01:01,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 02:01:01,829 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:01,829 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:01,829 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:01,830 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:01,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 02:01:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:02,558 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:02,948 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 02:01:02,950 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:03,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 02:01:03,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 02:01:11,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:11,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:11,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 247 states and 335 transitions. [2023-12-03 02:01:11,691 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 335 transitions. [2023-12-03 02:01:11,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 02:01:11,691 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:11,691 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:11,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:11,692 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:11,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 02:01:12,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:12,603 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:12,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:12,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:01:12,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:13,162 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 02:01:13,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 02:01:20,246 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.30s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:20,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:20,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 248 states and 336 transitions. [2023-12-03 02:01:20,297 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 336 transitions. [2023-12-03 02:01:20,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 02:01:20,297 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:20,297 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:20,297 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:20,298 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:20,300 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 02:01:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:21,256 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:21,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 02:01:21,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:21,957 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:01:21,972 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-03 02:01:25,775 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.12s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:27,270 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:28,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:28,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 262 states and 354 transitions. [2023-12-03 02:01:28,550 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 354 transitions. [2023-12-03 02:01:28,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 02:01:28,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:28,551 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:28,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:28,552 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:28,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 02:01:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:29,520 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:29,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 638 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 02:01:29,922 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:29,924 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:01:29,940 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-03 02:01:30,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:30,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 261 states and 349 transitions. [2023-12-03 02:01:30,100 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 349 transitions. [2023-12-03 02:01:30,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 02:01:30,101 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:30,101 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:30,101 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:30,102 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:30,103 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 02:01:31,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:31,472 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:31,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:01:31,898 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:32,136 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 02:01:32,156 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-12-03 02:01:33,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:33,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 262 states and 350 transitions. [2023-12-03 02:01:33,045 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 350 transitions. [2023-12-03 02:01:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 02:01:33,046 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:33,046 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:33,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:33,047 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:33,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 02:01:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:34,435 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:34,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 02:01:34,857 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:35,120 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:01:35,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 02:01:40,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:40,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:40,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 351 states to 263 states and 351 transitions. [2023-12-03 02:01:40,158 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 351 transitions. [2023-12-03 02:01:40,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 02:01:40,159 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:40,159 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:40,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:40,160 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:40,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 02:01:41,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:41,639 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:42,034 INFO L262 TraceCheckSpWp]: Trace formula consists of 663 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 02:01:42,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:42,247 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-12-03 02:01:42,264 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 02:01:53,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:01:53,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:53,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 264 states and 352 transitions. [2023-12-03 02:01:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 352 transitions. [2023-12-03 02:01:53,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 02:01:53,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:53,335 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:53,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:53,336 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:53,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 02:01:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:54,851 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:55,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:55,300 INFO L262 TraceCheckSpWp]: Trace formula consists of 674 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 02:01:55,302 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:55,540 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 02:01:55,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 02:01:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:01:56,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 353 states to 265 states and 353 transitions. [2023-12-03 02:01:56,498 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 353 transitions. [2023-12-03 02:01:56,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-03 02:01:56,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:01:56,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:01:56,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:01:56,500 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:01:56,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 02:01:58,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:58,141 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:01:58,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:01:58,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 685 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:01:58,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:01:58,909 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 02:01:58,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Forceful destruction successful, exit code 0 [2023-12-03 02:02:00,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:00,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 266 states and 354 transitions. [2023-12-03 02:02:00,210 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 354 transitions. [2023-12-03 02:02:00,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 02:02:00,210 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:00,210 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:00,211 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:00,212 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:00,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 02:02:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:02,014 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:02,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 696 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:02:02,445 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:02,789 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 02:02:02,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 02:02:04,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:04,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 267 states and 355 transitions. [2023-12-03 02:02:04,193 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 355 transitions. [2023-12-03 02:02:04,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-03 02:02:04,193 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:04,193 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:04,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:04,194 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:04,196 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 02:02:05,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:05,987 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:06,441 INFO L262 TraceCheckSpWp]: Trace formula consists of 707 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 02:02:06,444 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:06,810 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 02:02:06,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 02:02:14,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:02:14,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:14,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 356 states to 268 states and 356 transitions. [2023-12-03 02:02:14,714 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 356 transitions. [2023-12-03 02:02:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-03 02:02:14,715 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:14,715 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:14,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:14,716 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:14,718 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-03 02:02:16,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:16,504 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:16,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:17,027 INFO L262 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 02:02:17,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:17,405 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 02:02:17,435 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-03 02:02:28,354 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.42s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:02:28,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:28,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 357 states to 269 states and 357 transitions. [2023-12-03 02:02:28,397 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 357 transitions. [2023-12-03 02:02:28,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 02:02:28,397 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:28,397 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:28,397 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:28,398 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:28,399 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-03 02:02:30,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:30,228 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:30,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:30,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 729 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 02:02:30,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:31,137 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 02:02:31,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-03 02:02:32,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 270 states and 358 transitions. [2023-12-03 02:02:32,750 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 358 transitions. [2023-12-03 02:02:32,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 02:02:32,751 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:32,751 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:32,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:32,752 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:32,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-03 02:02:34,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:34,611 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:35,072 INFO L262 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 02:02:35,074 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:35,500 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 02:02:35,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-03 02:02:37,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 271 states and 359 transitions. [2023-12-03 02:02:37,160 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 359 transitions. [2023-12-03 02:02:37,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 02:02:37,160 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:37,161 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:37,161 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:37,162 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:37,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-03 02:02:39,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:39,020 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:39,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 751 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 02:02:39,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:40,000 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 02:02:40,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-03 02:02:51,679 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:02:51,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:02:51,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 272 states and 360 transitions. [2023-12-03 02:02:51,736 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 360 transitions. [2023-12-03 02:02:51,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 02:02:51,736 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:02:51,737 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:02:51,737 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:02:51,738 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:02:51,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-03 02:02:53,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:53,864 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:02:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:02:54,337 INFO L262 TraceCheckSpWp]: Trace formula consists of 762 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 02:02:54,339 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:02:54,701 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 02:02:54,730 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-03 02:03:06,244 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:03:06,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:06,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 273 states and 361 transitions. [2023-12-03 02:03:06,289 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 361 transitions. [2023-12-03 02:03:06,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 02:03:06,290 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:06,290 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:06,290 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:06,291 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:06,291 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-03 02:03:08,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:08,396 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:08,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:08,862 INFO L262 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 02:03:08,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:09,243 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 02:03:09,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-03 02:03:10,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:10,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 274 states and 362 transitions. [2023-12-03 02:03:10,627 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 362 transitions. [2023-12-03 02:03:10,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-03 02:03:10,627 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:10,628 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:10,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:10,628 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:10,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-03 02:03:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:12,908 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:13,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:13,372 INFO L262 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 02:03:13,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:13,840 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 02:03:13,873 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-03 02:03:15,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:15,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 275 states and 363 transitions. [2023-12-03 02:03:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 363 transitions. [2023-12-03 02:03:15,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 02:03:15,621 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:15,621 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:15,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:15,622 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:15,623 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-03 02:03:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:17,767 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:18,220 INFO L262 TraceCheckSpWp]: Trace formula consists of 795 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 02:03:18,222 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:18,643 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 02:03:18,678 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-03 02:03:30,371 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:03:30,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:30,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 276 states and 364 transitions. [2023-12-03 02:03:30,425 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 364 transitions. [2023-12-03 02:03:30,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 02:03:30,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:30,425 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:30,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:30,426 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:30,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-03 02:03:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:32,783 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:33,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:33,315 INFO L262 TraceCheckSpWp]: Trace formula consists of 806 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 02:03:33,319 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:33,760 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 02:03:33,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-03 02:03:44,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:03:44,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:44,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 277 states and 365 transitions. [2023-12-03 02:03:44,933 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 365 transitions. [2023-12-03 02:03:44,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-03 02:03:44,934 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:44,934 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:44,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:44,935 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:44,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-03 02:03:47,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:47,618 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:48,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 02:03:48,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:48,647 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 02:03:48,684 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-03 02:03:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:50,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 278 states and 366 transitions. [2023-12-03 02:03:50,644 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 366 transitions. [2023-12-03 02:03:50,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 02:03:50,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:50,644 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:50,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:50,645 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:50,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-03 02:03:53,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:53,150 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:53,685 INFO L262 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 02:03:53,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:54,311 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 02:03:54,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-03 02:03:56,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:03:56,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 367 states to 279 states and 367 transitions. [2023-12-03 02:03:56,325 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 367 transitions. [2023-12-03 02:03:56,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-03 02:03:56,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:03:56,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:03:56,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:03:56,326 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:03:56,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-03 02:03:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:58,934 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:03:59,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:03:59,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 02:03:59,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:03:59,947 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 02:03:59,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-03 02:04:10,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.55s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:04:10,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:10,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 280 states and 368 transitions. [2023-12-03 02:04:10,467 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 368 transitions. [2023-12-03 02:04:10,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 02:04:10,468 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:10,468 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:10,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:10,469 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:10,470 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-03 02:04:13,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:13,028 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:13,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 850 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 02:04:13,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:14,033 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 02:04:14,071 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-03 02:04:25,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.98s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:04:25,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:25,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 281 states and 369 transitions. [2023-12-03 02:04:25,072 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 369 transitions. [2023-12-03 02:04:25,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-03 02:04:25,072 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:25,072 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:25,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:25,073 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:25,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-03 02:04:27,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:27,400 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:27,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:27,908 INFO L262 TraceCheckSpWp]: Trace formula consists of 861 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 02:04:27,911 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:28,400 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 02:04:28,440 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-03 02:04:30,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:30,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 282 states and 370 transitions. [2023-12-03 02:04:30,535 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 370 transitions. [2023-12-03 02:04:30,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 02:04:30,535 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:30,535 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:30,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:30,536 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:30,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-03 02:04:32,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:32,901 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:33,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 872 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 02:04:33,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:33,902 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 02:04:33,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-03 02:04:36,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:36,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 283 states and 371 transitions. [2023-12-03 02:04:36,060 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 371 transitions. [2023-12-03 02:04:36,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 02:04:36,061 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:36,061 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:36,061 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:36,062 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:36,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-03 02:04:38,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:38,649 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:39,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 02:04:39,180 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:39,730 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 02:04:39,757 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-03 02:04:51,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:04:51,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:04:51,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 284 states and 372 transitions. [2023-12-03 02:04:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 372 transitions. [2023-12-03 02:04:51,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-03 02:04:51,109 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:04:51,109 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:04:51,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:04:51,109 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:04:51,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-03 02:04:53,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:53,968 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:04:54,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:04:54,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 894 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 02:04:54,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:04:55,041 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 02:04:55,068 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-03 02:05:04,050 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.77s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:05:04,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:05:04,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 285 states and 373 transitions. [2023-12-03 02:05:04,099 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 373 transitions. [2023-12-03 02:05:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-03 02:05:04,100 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:05:04,100 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:05:04,100 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:05:04,100 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:05:04,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-03 02:05:06,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:06,832 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:05:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:07,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 905 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 02:05:07,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:05:08,030 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 02:05:08,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-03 02:05:10,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:05:10,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 286 states and 374 transitions. [2023-12-03 02:05:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 374 transitions. [2023-12-03 02:05:10,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-03 02:05:10,444 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:05:10,444 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:05:10,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:05:10,445 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:05:10,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-03 02:05:13,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:13,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:05:13,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:13,806 INFO L262 TraceCheckSpWp]: Trace formula consists of 916 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 02:05:13,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:05:14,494 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 02:05:14,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-03 02:05:16,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:05:16,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 375 states to 287 states and 375 transitions. [2023-12-03 02:05:16,916 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 375 transitions. [2023-12-03 02:05:16,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 02:05:16,916 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:05:16,916 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:05:16,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:05:16,917 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:05:16,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-03 02:05:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:19,868 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:05:20,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:20,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 02:05:20,373 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:05:21,058 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 02:05:21,087 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-03 02:05:33,614 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:05:33,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:05:33,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 288 states and 376 transitions. [2023-12-03 02:05:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 376 transitions. [2023-12-03 02:05:33,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 02:05:33,665 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:05:33,665 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:05:33,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:05:33,665 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:05:33,666 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-03 02:05:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:36,445 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:05:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:36,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 938 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 02:05:36,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:05:37,614 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 02:05:37,644 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-03 02:05:50,237 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:05:50,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:05:50,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 289 states and 377 transitions. [2023-12-03 02:05:50,286 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 377 transitions. [2023-12-03 02:05:50,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 02:05:50,287 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:05:50,287 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:05:50,287 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:05:50,288 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:05:50,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-03 02:05:53,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:53,477 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:05:53,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:05:53,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 02:05:53,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:05:54,670 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 02:05:54,700 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Forceful destruction successful, exit code 0 [2023-12-03 02:05:57,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:05:57,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 290 states and 378 transitions. [2023-12-03 02:05:57,407 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 378 transitions. [2023-12-03 02:05:57,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 02:05:57,407 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:05:57,407 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:05:57,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:05:57,408 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:05:57,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-03 02:06:00,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:00,568 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:06:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:01,079 INFO L262 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 02:06:01,081 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:06:01,803 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 02:06:01,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-03 02:06:04,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:06:04,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 379 states to 291 states and 379 transitions. [2023-12-03 02:06:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 379 transitions. [2023-12-03 02:06:04,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-03 02:06:04,571 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:06:04,571 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:06:04,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:06:04,572 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:06:04,573 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-03 02:06:07,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:07,556 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:06:08,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:08,129 INFO L262 TraceCheckSpWp]: Trace formula consists of 971 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-03 02:06:08,133 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:06:08,846 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 02:06:08,878 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-03 02:06:20,427 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:06:20,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:06:20,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 292 states and 380 transitions. [2023-12-03 02:06:20,478 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 380 transitions. [2023-12-03 02:06:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 02:06:20,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:06:20,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:06:20,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:06:20,480 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:06:20,480 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-03 02:06:23,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:23,840 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:06:24,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:24,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 982 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-03 02:06:24,368 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:06:25,153 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 02:06:25,185 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-03 02:06:34,279 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.20s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:06:34,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:06:34,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 293 states and 381 transitions. [2023-12-03 02:06:34,328 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 381 transitions. [2023-12-03 02:06:34,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-03 02:06:34,328 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:06:34,328 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:06:34,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:06:34,329 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:06:34,330 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-03 02:06:38,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:38,085 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:06:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:38,616 INFO L262 TraceCheckSpWp]: Trace formula consists of 993 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 02:06:38,619 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:06:39,367 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 02:06:39,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-03 02:06:42,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:06:42,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 294 states and 382 transitions. [2023-12-03 02:06:42,428 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 382 transitions. [2023-12-03 02:06:42,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 02:06:42,428 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:06:42,429 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:06:42,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:06:42,429 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:06:42,430 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-03 02:06:45,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:45,980 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:06:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:46,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 1004 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 02:06:46,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:06:47,281 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 02:06:47,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-03 02:06:50,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:06:50,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 383 states to 295 states and 383 transitions. [2023-12-03 02:06:50,572 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 383 transitions. [2023-12-03 02:06:50,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-03 02:06:50,572 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:06:50,573 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:06:50,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:06:50,573 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:06:50,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-03 02:06:54,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:54,142 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:06:54,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:06:54,710 INFO L262 TraceCheckSpWp]: Trace formula consists of 1015 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-03 02:06:54,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:06:55,561 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 02:06:55,594 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-03 02:07:04,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.64s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:07:04,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:04,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 296 states and 384 transitions. [2023-12-03 02:07:04,399 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 384 transitions. [2023-12-03 02:07:04,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 02:07:04,399 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:04,399 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:04,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:04,401 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:04,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-03 02:07:08,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:08,013 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:07:08,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:08,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 1026 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-03 02:07:08,541 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:09,327 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 02:07:09,362 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-03 02:07:22,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:07:22,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:22,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 297 states and 385 transitions. [2023-12-03 02:07:22,720 INFO L276 IsEmpty]: Start isEmpty. Operand 297 states and 385 transitions. [2023-12-03 02:07:22,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 02:07:22,721 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:22,721 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:22,721 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:22,722 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:22,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-03 02:07:26,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:26,505 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:07:27,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:27,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 02:07:27,078 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:27,966 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 02:07:28,001 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-03 02:07:31,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:31,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 298 states and 386 transitions. [2023-12-03 02:07:31,373 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 386 transitions. [2023-12-03 02:07:31,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-03 02:07:31,373 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:31,374 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:31,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:31,374 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:31,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-03 02:07:35,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:35,196 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:07:35,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:35,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 1048 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 02:07:35,757 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:36,721 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 02:07:36,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-03 02:07:40,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:40,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 299 states and 387 transitions. [2023-12-03 02:07:40,336 INFO L276 IsEmpty]: Start isEmpty. Operand 299 states and 387 transitions. [2023-12-03 02:07:40,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-03 02:07:40,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:40,336 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:40,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:40,337 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:40,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-03 02:07:44,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:44,270 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:07:44,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:07:44,841 INFO L262 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-03 02:07:44,843 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:07:45,736 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 02:07:45,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-03 02:07:59,418 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:07:59,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:07:59,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 300 states and 388 transitions. [2023-12-03 02:07:59,472 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 388 transitions. [2023-12-03 02:07:59,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-03 02:07:59,473 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:07:59,473 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:07:59,473 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:07:59,473 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:07:59,474 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-03 02:08:03,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:03,420 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:08:03,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:03,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 1070 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-03 02:08:03,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:08:04,840 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 02:08:04,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-03 02:08:18,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:08:18,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:08:18,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 301 states and 389 transitions. [2023-12-03 02:08:18,611 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 389 transitions. [2023-12-03 02:08:18,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-03 02:08:18,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:08:18,611 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:08:18,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:08:18,612 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:08:18,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-03 02:08:22,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:22,592 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:08:23,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:23,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 1081 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 02:08:23,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:08:24,102 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 02:08:24,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-03 02:08:27,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:08:27,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 302 states and 390 transitions. [2023-12-03 02:08:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 390 transitions. [2023-12-03 02:08:27,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-03 02:08:27,978 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:08:27,978 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:08:27,978 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:08:27,979 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:08:27,980 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-03 02:08:32,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:32,127 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:08:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:32,652 INFO L262 TraceCheckSpWp]: Trace formula consists of 1092 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 02:08:32,655 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:08:33,618 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-03 02:08:33,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-03 02:08:37,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:08:37,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 303 states and 391 transitions. [2023-12-03 02:08:37,762 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 391 transitions. [2023-12-03 02:08:37,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 02:08:37,762 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:08:37,762 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:08:37,763 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:08:37,764 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:08:37,765 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-03 02:08:42,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:42,227 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:08:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:08:42,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 1103 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-03 02:08:42,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:08:43,816 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 02:08:43,856 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-03 02:08:57,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:08:57,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:08:57,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 304 states and 392 transitions. [2023-12-03 02:08:57,919 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 392 transitions. [2023-12-03 02:08:57,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 02:08:57,919 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:08:57,919 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:08:57,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:08:57,920 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:08:57,921 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-03 02:09:02,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:09:02,333 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:09:02,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:09:02,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 1114 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-03 02:09:02,907 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:09:03,888 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 02:09:03,929 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-03 02:09:18,117 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 02:09:18,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 02:09:18,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 305 states and 393 transitions. [2023-12-03 02:09:18,171 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 393 transitions. [2023-12-03 02:09:18,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-03 02:09:18,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 02:09:18,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 02:09:18,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 02:09:18,172 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 02:09:18,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-03 02:09:22,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:09:22,435 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 02:09:22,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 02:09:22,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 1125 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-03 02:09:22,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 02:09:24,150 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-03 02:09:24,192 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_aa6158d1-6f95-4d7e-8196-881795bfd608/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Forceful destruction successful, exit code 0