./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.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_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/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_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/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_fd6edfb4-78b3-406e-b4bb-589bea239879/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 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:11:55,807 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:11:55,866 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-03 01:11:55,871 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-03 01:11:55,871 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-03 01:11:55,892 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:11:55,893 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:11:55,893 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:11:55,894 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:11:55,895 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:11:55,895 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:11:55,896 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:11:55,896 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:11:55,897 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:11:55,897 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:11:55,898 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:11:55,898 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:11:55,899 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:11:55,899 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:11:55,900 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:11:55,900 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:11:55,902 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:11:55,903 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:11:55,903 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:11:55,904 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:11:55,904 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:11:55,905 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:11:55,905 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:11:55,905 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:11:55,906 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:11:55,906 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-03 01:11:55,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-03 01:11:55,907 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_fd6edfb4-78b3-406e-b4bb-589bea239879/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 [2023-12-03 01:11:56,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:11:56,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:11:56,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:11:56,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:11:56,135 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:11:56,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2023-12-03 01:11:58,921 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:11:59,190 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:11:59,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2023-12-03 01:11:59,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data/4202bef0b/29e6faa0e82d4f1dba43e74e1aeb67e6/FLAG361fd26f9 [2023-12-03 01:11:59,223 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data/4202bef0b/29e6faa0e82d4f1dba43e74e1aeb67e6 [2023-12-03 01:11:59,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:11:59,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:11:59,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:11:59,229 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:11:59,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:11:59,234 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:11:59" (1/1) ... [2023-12-03 01:11:59,235 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51298d0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:11:59, skipping insertion in model container [2023-12-03 01:11:59,235 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:11:59" (1/1) ... [2023-12-03 01:11:59,320 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:11:59,843 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:11:59,854 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:11:59,953 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:12:00,017 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:12:00,024 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:12:00,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00 WrapperNode [2023-12-03 01:12:00,025 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:12:00,026 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:12:00,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:12:00,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:12:00,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,069 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,137 INFO L138 Inliner]: procedures = 208, calls = 288, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1420 [2023-12-03 01:12:00,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:12:00,138 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:12:00,138 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:12:00,138 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:12:00,147 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,148 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,160 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,160 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,221 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,229 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,236 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,247 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:12:00,248 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:12:00,248 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:12:00,249 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:12:00,249 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:12:00" (1/1) ... [2023-12-03 01:12:00,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:12:00,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:12:00,279 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:12:00,281 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:12:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:12:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 01:12:00,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 01:12:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:12:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-03 01:12:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-03 01:12:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 01:12:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:12:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 01:12:00,313 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-03 01:12:00,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:12:00,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:12:00,521 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:12:00,523 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:12:02,025 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:12:03,421 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:12:03,421 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-03 01:12:03,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:12:03 BoogieIcfgContainer [2023-12-03 01:12:03,423 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:12:03,424 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:12:03,424 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:12:03,434 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:12:03,434 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:12:03" (1/1) ... [2023-12-03 01:12:03,443 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:12:03,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:03,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 148 states and 245 transitions. [2023-12-03 01:12:03,504 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 245 transitions. [2023-12-03 01:12:03,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:12:03,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:03,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:03,671 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 01:12:03,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:03,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 148 states and 243 transitions. [2023-12-03 01:12:03,699 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 243 transitions. [2023-12-03 01:12:03,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:12:03,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:03,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:03,853 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 01:12:03,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:03,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 150 states and 246 transitions. [2023-12-03 01:12:03,895 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions. [2023-12-03 01:12:03,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:12:03,897 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:03,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:04,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:12:04,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:12:04,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:04,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 150 states and 244 transitions. [2023-12-03 01:12:04,021 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 244 transitions. [2023-12-03 01:12:04,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 01:12:04,022 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:04,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:04,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:12:04,138 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:04,141 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:12:04,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:04,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 150 states and 240 transitions. [2023-12-03 01:12:04,148 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 240 transitions. [2023-12-03 01:12:04,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 01:12:04,149 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:04,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:04,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:12:04,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:12:04,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:04,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 150 states and 234 transitions. [2023-12-03 01:12:04,270 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 234 transitions. [2023-12-03 01:12:04,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 01:12:04,271 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:04,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:04,492 INFO L262 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:12:04,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:04,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:12:14,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:12:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:14,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 150 states and 228 transitions. [2023-12-03 01:12:14,602 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 228 transitions. [2023-12-03 01:12:14,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 01:12:14,603 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:14,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:14,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:14,856 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:12:14,860 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:14,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:12:25,130 WARN L539 Checker$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 01:12:35,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:12:45,186 WARN L539 Checker$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 01:12:55,211 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 01:12:55,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:55,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 163 states and 243 transitions. [2023-12-03 01:12:55,259 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 243 transitions. [2023-12-03 01:12:55,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 01:12:55,261 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:55,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:55,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:55,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:12:55,467 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:55,471 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:12:55,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:55,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 163 states and 241 transitions. [2023-12-03 01:12:55,479 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2023-12-03 01:12:55,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 01:12:55,480 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:55,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:55,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:12:55,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:12:55,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:12:55,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 163 states and 239 transitions. [2023-12-03 01:12:55,683 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2023-12-03 01:12:55,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 01:12:55,684 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:12:55,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:12:55,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:12:55,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:12:55,972 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:12:55,975 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:13:05,984 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 01:13:06,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:13:06,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 163 states and 237 transitions. [2023-12-03 01:13:06,011 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 237 transitions. [2023-12-03 01:13:06,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 01:13:06,011 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:13:06,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:13:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:13:06,245 INFO L262 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:13:06,247 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:13:06,317 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:13:16,331 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:13:26,370 WARN L539 Checker$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 01:13:36,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:13:46,425 WARN L539 Checker$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 01:13:46,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:13:46,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 166 states and 239 transitions. [2023-12-03 01:13:46,473 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 239 transitions. [2023-12-03 01:13:46,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 01:13:46,474 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:13:46,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:13:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:13:46,755 INFO L262 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:13:46,758 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:13:46,866 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:13:56,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:07,046 WARN L539 Checker$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 01:14:17,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:27,152 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:27,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:14:27,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 201 states and 286 transitions. [2023-12-03 01:14:27,694 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2023-12-03 01:14:27,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 01:14:27,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:14:27,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:14:27,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:14:27,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:14:27,946 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:14:27,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:14:27,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:14:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 200 states and 281 transitions. [2023-12-03 01:14:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 281 transitions. [2023-12-03 01:14:27,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 01:14:27,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:14:27,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:14:28,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:14:28,241 INFO L262 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:14:28,243 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:14:28,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:14:28,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:14:28,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 200 states and 279 transitions. [2023-12-03 01:14:28,261 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 279 transitions. [2023-12-03 01:14:28,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 01:14:28,262 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:14:28,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:14:28,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:14:28,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:14:28,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:14:28,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:14:38,627 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:14:48,649 WARN L539 Checker$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 01:14:58,672 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:15:08,701 WARN L539 Checker$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 01:15:08,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:08,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 185 states and 260 transitions. [2023-12-03 01:15:08,763 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 260 transitions. [2023-12-03 01:15:08,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 01:15:08,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:08,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:09,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:09,019 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:15:09,021 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:09,024 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:15:09,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:09,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 185 states and 258 transitions. [2023-12-03 01:15:09,093 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 258 transitions. [2023-12-03 01:15:09,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 01:15:09,094 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:09,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:09,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:15:09,324 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:09,327 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:15:09,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:09,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 185 states and 254 transitions. [2023-12-03 01:15:09,336 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 254 transitions. [2023-12-03 01:15:09,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 01:15:09,337 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:09,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:09,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:09,580 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:15:09,582 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:09,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-03 01:15:09,655 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 15 treesize of output 7 [2023-12-03 01:15:09,683 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 01:15:09,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:09,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 187 states and 257 transitions. [2023-12-03 01:15:09,886 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 257 transitions. [2023-12-03 01:15:09,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 01:15:09,886 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:09,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:10,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:10,200 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:15:10,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:10,204 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:15:10,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:10,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 187 states and 256 transitions. [2023-12-03 01:15:10,219 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 256 transitions. [2023-12-03 01:15:10,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 01:15:10,220 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:10,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:10,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:10,484 INFO L262 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:15:10,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:10,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:15:10,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:10,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 195 states and 266 transitions. [2023-12-03 01:15:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 266 transitions. [2023-12-03 01:15:10,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-03 01:15:10,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:11,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:15:11,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:15:11,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:11,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 195 states and 264 transitions. [2023-12-03 01:15:11,080 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 264 transitions. [2023-12-03 01:15:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-03 01:15:11,081 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:11,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:11,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:11,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:15:11,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:11,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:15:12,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:12,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 196 states and 266 transitions. [2023-12-03 01:15:12,142 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 266 transitions. [2023-12-03 01:15:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 01:15:12,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:12,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:12,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:15:12,361 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:12,364 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:15:22,389 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 01:15:22,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:22,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 196 states and 264 transitions. [2023-12-03 01:15:22,419 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 264 transitions. [2023-12-03 01:15:22,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 01:15:22,420 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:22,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:22,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:22,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:15:22,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:22,783 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:15:22,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:15:22,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 196 states and 262 transitions. [2023-12-03 01:15:22,794 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 262 transitions. [2023-12-03 01:15:22,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-03 01:15:22,795 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:15:22,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:15:23,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:15:23,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:15:23,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:15:23,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:15:33,128 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 01:15:43,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:15:53,194 WARN L539 Checker$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 01:16:03,233 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 01:16:03,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:03,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 207 states and 275 transitions. [2023-12-03 01:16:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 275 transitions. [2023-12-03 01:16:03,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 01:16:03,269 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:03,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:03,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:16:03,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 739 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:16:03,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:16:03,698 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:16:04,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:04,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 210 states and 277 transitions. [2023-12-03 01:16:04,509 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 277 transitions. [2023-12-03 01:16:04,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 01:16:04,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:04,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:16:04,741 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:16:04,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:16:04,745 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:16:14,759 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 01:16:14,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:14,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 210 states and 275 transitions. [2023-12-03 01:16:14,789 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 275 transitions. [2023-12-03 01:16:14,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 01:16:14,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:14,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:15,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:16:15,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:16:15,038 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:16:15,041 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:16:15,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:15,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 210 states and 271 transitions. [2023-12-03 01:16:15,052 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 271 transitions. [2023-12-03 01:16:15,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-03 01:16:15,052 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:15,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:16:15,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:16:15,311 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-03 01:16:15,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:16:15,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:16:25,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:16:35,419 WARN L539 Checker$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 01:16:45,458 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:16:55,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-03 01:16:55,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:16:55,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 213 states and 273 transitions. [2023-12-03 01:16:55,567 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 273 transitions. [2023-12-03 01:16:55,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-03 01:16:55,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:16:55,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-03 01:17:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-03 01:17:05,827 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 01:17:05,831 INFO L158 Benchmark]: Toolchain (without parser) took 306603.37ms. Allocated memory was 153.1MB in the beginning and 239.1MB in the end (delta: 86.0MB). Free memory was 112.2MB in the beginning and 117.0MB in the end (delta: -4.8MB). Peak memory consumption was 82.7MB. Max. memory is 16.1GB. [2023-12-03 01:17:05,831 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-03 01:17:05,832 INFO L158 Benchmark]: CACSL2BoogieTranslator took 796.97ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 112.2MB in the beginning and 151.2MB in the end (delta: -39.0MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. [2023-12-03 01:17:05,832 INFO L158 Benchmark]: Boogie Procedure Inliner took 111.08ms. Allocated memory is still 186.6MB. Free memory was 150.2MB in the beginning and 141.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-03 01:17:05,833 INFO L158 Benchmark]: Boogie Preprocessor took 109.71ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 132.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-03 01:17:05,834 INFO L158 Benchmark]: RCFGBuilder took 3175.12ms. Allocated memory was 186.6MB in the beginning and 239.1MB in the end (delta: 52.4MB). Free memory was 132.3MB in the beginning and 160.8MB in the end (delta: -28.4MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. [2023-12-03 01:17:05,834 INFO L158 Benchmark]: CodeCheck took 302405.67ms. Allocated memory is still 239.1MB. Free memory was 160.8MB in the beginning and 117.0MB in the end (delta: 43.7MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. [2023-12-03 01:17:05,838 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - ExceptionOrErrorResult: UnsupportedOperationException: Solver said unknown de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: UnsupportedOperationException: Solver said unknown: de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.CodeCheckObserver.process(CodeCheckObserver.java:488) * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 98.6MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 796.97ms. Allocated memory was 153.1MB in the beginning and 186.6MB in the end (delta: 33.6MB). Free memory was 112.2MB in the beginning and 151.2MB in the end (delta: -39.0MB). Peak memory consumption was 46.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 111.08ms. Allocated memory is still 186.6MB. Free memory was 150.2MB in the beginning and 141.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 109.71ms. Allocated memory is still 186.6MB. Free memory was 141.8MB in the beginning and 132.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3175.12ms. Allocated memory was 186.6MB in the beginning and 239.1MB in the end (delta: 52.4MB). Free memory was 132.3MB in the beginning and 160.8MB in the end (delta: -28.4MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. * CodeCheck took 302405.67ms. Allocated memory is still 239.1MB. Free memory was 160.8MB in the beginning and 117.0MB in the end (delta: 43.7MB). Peak memory consumption was 43.4MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-03 01:17:06,025 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/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_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/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_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/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_fd6edfb4-78b3-406e-b4bb-589bea239879/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 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-03 01:17:07,742 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-03 01:17:07,824 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-03 01:17:07,860 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-03 01:17:07,861 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-03 01:17:07,862 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-03 01:17:07,863 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-03 01:17:07,863 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-03 01:17:07,864 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-03 01:17:07,865 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-03 01:17:07,866 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-03 01:17:07,866 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-03 01:17:07,867 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-03 01:17:07,867 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-03 01:17:07,868 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-03 01:17:07,869 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-03 01:17:07,869 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-03 01:17:07,870 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-03 01:17:07,871 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-03 01:17:07,871 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-03 01:17:07,872 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-03 01:17:07,872 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-03 01:17:07,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-03 01:17:07,873 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-03 01:17:07,874 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-03 01:17:07,874 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-03 01:17:07,875 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-03 01:17:07,875 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:07,875 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-03 01:17:07,876 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-03 01:17:07,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:17:07,877 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-03 01:17:07,877 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-03 01:17:07,877 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-03 01:17:07,878 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:07,878 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-03 01:17:07,878 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-03 01:17:07,878 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_fd6edfb4-78b3-406e-b4bb-589bea239879/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2a3326bc22943076798f4c55311213b2a5f9b1e03e68dc17c2ac5a3393252251 [2023-12-03 01:17:08,194 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-03 01:17:08,218 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-03 01:17:08,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-03 01:17:08,222 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-03 01:17:08,222 INFO L274 PluginConnector]: CDTParser initialized [2023-12-03 01:17:08,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2023-12-03 01:17:10,978 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-03 01:17:11,301 INFO L384 CDTParser]: Found 1 translation units. [2023-12-03 01:17:11,302 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test2-2.i [2023-12-03 01:17:11,322 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data/925a78594/a2ca2e75f048430e8f9b07885d60b7f3/FLAG36f50780a [2023-12-03 01:17:11,338 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/data/925a78594/a2ca2e75f048430e8f9b07885d60b7f3 [2023-12-03 01:17:11,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-03 01:17:11,343 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-03 01:17:11,345 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-03 01:17:11,345 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-03 01:17:11,350 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-03 01:17:11,351 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:17:11" (1/1) ... [2023-12-03 01:17:11,353 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2749c487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:11, skipping insertion in model container [2023-12-03 01:17:11,353 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 01:17:11" (1/1) ... [2023-12-03 01:17:11,418 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:17:12,006 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:17:12,020 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-03 01:17:12,039 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-03 01:17:12,157 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:17:12,162 INFO L202 MainTranslator]: Completed pre-run [2023-12-03 01:17:12,241 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-03 01:17:12,282 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-03 01:17:12,290 INFO L206 MainTranslator]: Completed translation [2023-12-03 01:17:12,290 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12 WrapperNode [2023-12-03 01:17:12,291 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-03 01:17:12,292 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-03 01:17:12,292 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-03 01:17:12,292 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-03 01:17:12,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,335 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,397 INFO L138 Inliner]: procedures = 211, calls = 288, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1093 [2023-12-03 01:17:12,397 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-03 01:17:12,398 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-03 01:17:12,398 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-03 01:17:12,398 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-03 01:17:12,408 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,409 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,422 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,423 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,473 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,484 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,512 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-03 01:17:12,513 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-03 01:17:12,513 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-03 01:17:12,513 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-03 01:17:12,514 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 01:17:12" (1/1) ... [2023-12-03 01:17:12,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-03 01:17:12,531 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-03 01:17:12,545 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-03 01:17:12,550 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-03 01:17:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-03 01:17:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-03 01:17:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-03 01:17:12,586 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-03 01:17:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-03 01:17:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-03 01:17:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-03 01:17:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-03 01:17:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-03 01:17:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-03 01:17:12,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-03 01:17:12,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-03 01:17:12,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-03 01:17:12,810 INFO L241 CfgBuilder]: Building ICFG [2023-12-03 01:17:12,812 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-03 01:17:27,643 INFO L282 CfgBuilder]: Performing block encoding [2023-12-03 01:17:28,098 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-03 01:17:28,098 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-03 01:17:28,100 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:17:28 BoogieIcfgContainer [2023-12-03 01:17:28,100 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-03 01:17:28,101 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-03 01:17:28,101 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-03 01:17:28,111 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-03 01:17:28,111 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 01:17:28" (1/1) ... [2023-12-03 01:17:28,121 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-03 01:17:28,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:28,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 148 states and 245 transitions. [2023-12-03 01:17:28,184 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 245 transitions. [2023-12-03 01:17:28,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-03 01:17:28,187 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:28,187 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:28,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:28,206 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:28,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-03 01:17:28,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:28,502 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:28,572 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:17:28,578 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:28,598 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 01:17:28,601 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:17:28,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-03 01:17:28,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:28,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 148 states and 243 transitions. [2023-12-03 01:17:28,657 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 243 transitions. [2023-12-03 01:17:28,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-03 01:17:28,658 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:28,659 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:28,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:28,660 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:28,662 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-03 01:17:28,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:28,963 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:29,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 01:17:29,028 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:29,068 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:17:29,069 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:17:29,069 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:17:29,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-03 01:17:29,168 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 01:17:29,169 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-03 01:17:29,195 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 01:17:29,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-03 01:17:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:29,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 150 states and 246 transitions. [2023-12-03 01:17:29,567 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions. [2023-12-03 01:17:29,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-03 01:17:29,568 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:29,569 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:29,569 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:29,570 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:29,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-03 01:17:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:29,864 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:29,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:29,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:17:29,991 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:29,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:29,997 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:17:29,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-03 01:17:30,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:30,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 150 states and 244 transitions. [2023-12-03 01:17:30,008 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 244 transitions. [2023-12-03 01:17:30,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-03 01:17:30,009 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:30,009 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:30,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:30,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:30,013 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-03 01:17:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:30,293 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:30,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:30,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:17:30,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:30,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:30,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-03 01:17:30,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:30,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 150 states and 240 transitions. [2023-12-03 01:17:30,422 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 240 transitions. [2023-12-03 01:17:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-03 01:17:30,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:30,424 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:30,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:30,425 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:30,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-03 01:17:30,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:30,786 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:30,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:30,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 194 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:17:30,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:30,945 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:30,949 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-03 01:17:30,954 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:17:30,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:30,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 150 states and 234 transitions. [2023-12-03 01:17:30,965 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 234 transitions. [2023-12-03 01:17:30,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-03 01:17:30,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:30,966 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:30,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:30,968 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:30,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-03 01:17:31,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:31,348 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:31,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:31,539 INFO L262 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:17:31,542 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:31,551 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-03 01:17:32,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:32,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 150 states and 226 transitions. [2023-12-03 01:17:32,049 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2023-12-03 01:17:32,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-03 01:17:32,050 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:32,051 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:32,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:32,052 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:32,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-03 01:17:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:32,448 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:32,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:32,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:17:32,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:32,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:32,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-03 01:17:34,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:34,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 163 states and 241 transitions. [2023-12-03 01:17:34,767 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2023-12-03 01:17:34,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-03 01:17:34,768 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:34,768 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:34,769 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:34,770 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:34,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-03 01:17:35,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:35,208 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:35,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:17:35,434 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:35,436 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:35,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-03 01:17:35,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:35,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 163 states and 239 transitions. [2023-12-03 01:17:35,455 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2023-12-03 01:17:35,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-03 01:17:35,456 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:35,457 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:35,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:35,458 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:35,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-03 01:17:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:35,947 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:36,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:36,192 INFO L262 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:17:36,195 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:36,199 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:36,203 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-03 01:17:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:36,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 163 states and 237 transitions. [2023-12-03 01:17:36,217 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 237 transitions. [2023-12-03 01:17:36,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-03 01:17:36,218 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:36,218 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:36,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:36,220 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:36,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-03 01:17:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:36,749 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:37,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:37,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:17:37,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:37,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:17:37,194 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-03 01:17:37,194 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Exception during sending of exit command (exit): Broken pipe [2023-12-03 01:17:37,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:17:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 166 states and 239 transitions. [2023-12-03 01:17:37,224 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 239 transitions. [2023-12-03 01:17:37,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-03 01:17:37,225 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:17:37,225 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:17:37,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:17:37,226 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:17:37,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-03 01:17:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:37,907 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:17:38,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:17:38,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:17:38,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:17:38,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:17:38,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-03 01:17:49,552 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:17:59,579 WARN L539 Checker$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 01:18:09,611 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:19,639 WARN L539 Checker$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 01:18:22,282 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:24,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:24,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 201 states and 286 transitions. [2023-12-03 01:18:24,498 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2023-12-03 01:18:24,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-03 01:18:24,499 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:24,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:24,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:24,500 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:24,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-03 01:18:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:25,184 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:25,510 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:18:25,511 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:25,514 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:25,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-03 01:18:25,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:25,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 200 states and 281 transitions. [2023-12-03 01:18:25,533 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 281 transitions. [2023-12-03 01:18:25,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-03 01:18:25,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:25,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:25,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:25,535 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:25,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-03 01:18:26,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:26,218 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:26,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:26,522 INFO L262 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:18:26,523 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:26,526 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:26,533 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-03 01:18:26,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:26,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 200 states and 279 transitions. [2023-12-03 01:18:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 279 transitions. [2023-12-03 01:18:26,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 01:18:26,561 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:26,562 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:26,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:26,563 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:26,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-03 01:18:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:27,234 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:27,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:27,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:18:27,570 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:18:27,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-03 01:18:27,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:27,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 185 states and 260 transitions. [2023-12-03 01:18:27,752 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 260 transitions. [2023-12-03 01:18:27,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-03 01:18:27,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:27,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:27,753 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:27,754 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:27,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-03 01:18:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:28,485 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:28,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:28,781 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:18:28,783 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:28,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-03 01:18:28,793 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-03 01:18:38,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:38,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 185 states and 258 transitions. [2023-12-03 01:18:38,844 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 258 transitions. [2023-12-03 01:18:38,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-03 01:18:38,845 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:38,845 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:38,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:38,846 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:38,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-03 01:18:39,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:39,655 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:39,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:39,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:18:39,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:39,953 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:39,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-03 01:18:39,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:39,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 185 states and 254 transitions. [2023-12-03 01:18:39,974 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 254 transitions. [2023-12-03 01:18:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-03 01:18:39,975 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:39,975 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:39,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:39,976 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:39,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-03 01:18:40,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:40,813 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:41,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:41,127 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:18:41,129 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:41,238 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:18:41,249 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-03 01:18:41,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:41,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 186 states and 255 transitions. [2023-12-03 01:18:41,747 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2023-12-03 01:18:41,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-03 01:18:41,748 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:41,748 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:41,749 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:41,750 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:41,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-03 01:18:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:42,572 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:42,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:42,918 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:18:42,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:43,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:43,048 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-03 01:18:48,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.76s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:18:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 187 states and 256 transitions. [2023-12-03 01:18:48,373 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 256 transitions. [2023-12-03 01:18:48,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-03 01:18:48,374 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:48,374 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:48,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:48,375 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:48,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-03 01:18:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:49,587 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:49,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:49,958 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:18:49,960 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:49,968 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:18:49,969 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:18:49,969 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-03 01:18:49,972 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 39 [2023-12-03 01:18:50,011 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-03 01:18:50,011 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 70 treesize of output 26 [2023-12-03 01:18:50,140 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 01:18:50,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-03 01:18:50,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:50,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 189 states and 259 transitions. [2023-12-03 01:18:50,962 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2023-12-03 01:18:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-03 01:18:50,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:50,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:50,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:50,964 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:50,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-03 01:18:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:52,007 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:52,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:52,464 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:18:52,466 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:52,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:52,483 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-03 01:18:52,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:18:52,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 189 states and 258 transitions. [2023-12-03 01:18:52,691 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 258 transitions. [2023-12-03 01:18:52,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-03 01:18:52,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:18:52,692 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:18:52,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:18:52,693 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:18:52,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-03 01:18:53,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:53,815 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:18:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:18:54,269 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:18:54,271 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:18:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:18:54,459 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-03 01:19:05,057 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:19:15,085 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:19:25,117 WARN L539 Checker$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 01:19:35,140 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:19:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:19:35,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 197 states and 268 transitions. [2023-12-03 01:19:35,178 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 268 transitions. [2023-12-03 01:19:35,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-03 01:19:35,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:19:35,179 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:19:35,179 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:19:35,180 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:19:35,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-03 01:19:36,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:19:36,214 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:19:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:19:36,533 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:19:36,535 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:19:36,537 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 01:19:36,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-03 01:19:36,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:19:36,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 197 states and 266 transitions. [2023-12-03 01:19:36,573 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 266 transitions. [2023-12-03 01:19:36,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-03 01:19:36,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:19:36,574 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:19:36,574 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:19:36,575 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:19:36,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-03 01:19:37,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:19:37,791 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:19:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:19:38,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:19:38,283 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:19:38,488 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 01:19:38,506 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-03 01:19:48,541 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:19:58,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:19:58,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:19:58,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 198 states and 268 transitions. [2023-12-03 01:19:58,600 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 268 transitions. [2023-12-03 01:19:58,609 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-03 01:19:58,609 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:19:58,609 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:19:58,609 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:19:58,610 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:19:58,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-03 01:19:59,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:19:59,691 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:19:59,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:00,023 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:20:00,025 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:00,027 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 01:20:00,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-03 01:20:00,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:00,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 198 states and 266 transitions. [2023-12-03 01:20:00,091 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 266 transitions. [2023-12-03 01:20:00,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 01:20:00,092 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:00,092 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:00,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:00,093 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:00,094 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-03 01:20:01,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:01,317 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:01,689 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:20:01,691 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:01,864 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:20:01,882 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-03 01:20:01,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:01,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 209 states and 279 transitions. [2023-12-03 01:20:01,961 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 279 transitions. [2023-12-03 01:20:01,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-03 01:20:01,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:01,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:01,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:01,964 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:01,966 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-03 01:20:03,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:03,402 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:03,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:03,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:20:03,920 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:03,932 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-03 01:20:03,952 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-03 01:20:03,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:03,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 209 states and 277 transitions. [2023-12-03 01:20:03,964 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 277 transitions. [2023-12-03 01:20:03,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-03 01:20:03,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:03,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:03,967 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:03,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-03 01:20:05,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:05,508 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:05,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:06,013 INFO L262 TraceCheckSpWp]: Trace formula consists of 724 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:20:06,015 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:06,235 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-03 01:20:06,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-03 01:20:16,295 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:20:26,325 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 01:20:26,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:26,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 212 states and 279 transitions. [2023-12-03 01:20:26,357 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 279 transitions. [2023-12-03 01:20:26,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 01:20:26,357 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:26,357 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:26,357 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:26,358 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:26,360 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-03 01:20:27,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:27,736 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:28,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:28,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:20:28,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:28,088 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 01:20:28,110 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-03 01:20:28,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:28,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 212 states and 275 transitions. [2023-12-03 01:20:28,125 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 275 transitions. [2023-12-03 01:20:28,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-03 01:20:28,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:28,126 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:28,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:28,127 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:28,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-03 01:20:29,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:29,583 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:29,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:29,992 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-03 01:20:29,994 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:29,997 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-03 01:20:30,020 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-03 01:20:30,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:30,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 212 states and 273 transitions. [2023-12-03 01:20:30,032 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 273 transitions. [2023-12-03 01:20:30,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-03 01:20:30,032 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:30,033 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:30,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:30,034 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:30,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-03 01:20:31,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:31,405 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:31,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:31,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-03 01:20:31,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:20:32,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-03 01:20:32,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:32,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 215 states and 275 transitions. [2023-12-03 01:20:32,085 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 275 transitions. [2023-12-03 01:20:32,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-03 01:20:32,085 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:32,086 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:32,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:32,087 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:32,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-03 01:20:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:33,933 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:34,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:34,316 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:20:34,318 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:34,515 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-03 01:20:34,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-03 01:20:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 216 states and 273 transitions. [2023-12-03 01:20:35,416 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 273 transitions. [2023-12-03 01:20:35,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-03 01:20:35,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:35,417 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:35,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:35,418 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:35,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-03 01:20:37,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:37,327 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:37,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:37,715 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-03 01:20:37,718 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:37,910 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:20:37,939 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-03 01:20:48,871 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:20:48,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:20:48,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 217 states and 274 transitions. [2023-12-03 01:20:48,922 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 274 transitions. [2023-12-03 01:20:48,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-03 01:20:48,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:20:48,923 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:20:48,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:20:48,924 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:20:48,925 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-03 01:20:50,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:50,869 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:20:51,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:20:51,277 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 01:20:51,279 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:20:51,503 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:20:51,534 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-03 01:21:02,453 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 01:21:02,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:21:02,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 218 states and 275 transitions. [2023-12-03 01:21:02,507 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 275 transitions. [2023-12-03 01:21:02,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-03 01:21:02,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:21:02,508 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:21:02,508 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:21:02,509 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:21:02,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-03 01:21:04,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:04,730 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:21:05,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:05,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:21:05,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:05,441 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-03 01:21:05,471 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-03 01:21:16,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:21:16,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:21:16,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 219 states and 276 transitions. [2023-12-03 01:21:16,586 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 276 transitions. [2023-12-03 01:21:16,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-03 01:21:16,587 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:21:16,587 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:21:16,587 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:21:16,588 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:21:16,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-03 01:21:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:18,652 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:21:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:19,043 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-03 01:21:19,046 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:19,276 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:21:19,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-03 01:21:20,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:21:20,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 220 states and 277 transitions. [2023-12-03 01:21:20,237 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 277 transitions. [2023-12-03 01:21:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-03 01:21:20,238 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:21:20,238 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:21:20,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:21:20,239 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:21:20,240 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-03 01:21:22,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:22,369 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:21:22,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:22,785 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-03 01:21:22,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:23,042 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:21:23,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-03 01:21:24,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:21:24,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 221 states and 278 transitions. [2023-12-03 01:21:24,176 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 278 transitions. [2023-12-03 01:21:24,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-03 01:21:24,177 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:21:24,177 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:21:24,177 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:21:24,178 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:21:24,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-03 01:21:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:26,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:21:26,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:26,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 01:21:26,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:21:27,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-03 01:21:38,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:21:38,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:21:38,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 222 states and 279 transitions. [2023-12-03 01:21:38,264 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 279 transitions. [2023-12-03 01:21:38,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-03 01:21:38,264 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:21:38,265 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:21:38,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:21:38,266 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:21:38,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-03 01:21:40,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:40,409 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:21:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:40,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:21:40,802 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:41,077 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-03 01:21:41,112 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-03 01:21:52,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:21:52,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:21:52,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 223 states and 280 transitions. [2023-12-03 01:21:52,363 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 280 transitions. [2023-12-03 01:21:52,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-03 01:21:52,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:21:52,364 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:21:52,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:21:52,365 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:21:52,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-03 01:21:54,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:54,498 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:21:54,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:54,903 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-03 01:21:54,905 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:55,195 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:21:55,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-03 01:21:56,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:21:56,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 224 states and 281 transitions. [2023-12-03 01:21:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 281 transitions. [2023-12-03 01:21:56,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-03 01:21:56,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:21:56,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:21:56,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:21:56,556 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:21:56,557 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-03 01:21:58,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:58,705 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:21:59,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:21:59,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-03 01:21:59,150 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:21:59,463 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:21:59,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Forceful destruction successful, exit code 0 [2023-12-03 01:22:00,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:22:00,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 225 states and 282 transitions. [2023-12-03 01:22:00,891 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 282 transitions. [2023-12-03 01:22:00,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-03 01:22:00,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:22:00,892 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:22:00,892 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:22:00,893 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:22:00,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-03 01:22:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:03,205 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:22:03,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:03,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:22:03,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:22:03,976 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:22:04,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-03 01:22:15,435 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 01:22:15,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:22:15,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 226 states and 283 transitions. [2023-12-03 01:22:15,498 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 283 transitions. [2023-12-03 01:22:15,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-03 01:22:15,498 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:22:15,499 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:22:15,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:22:15,500 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:22:15,501 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-03 01:22:18,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:18,074 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:22:18,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:18,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:22:18,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:22:18,870 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-03 01:22:18,909 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-03 01:22:30,489 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:22:30,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:22:30,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 227 states and 284 transitions. [2023-12-03 01:22:30,543 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2023-12-03 01:22:30,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-03 01:22:30,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:22:30,543 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:22:30,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:22:30,544 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:22:30,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-03 01:22:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:33,032 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:22:33,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:33,470 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-03 01:22:33,472 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:22:33,822 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:22:33,863 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-03 01:22:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:22:35,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 228 states and 285 transitions. [2023-12-03 01:22:35,385 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 285 transitions. [2023-12-03 01:22:35,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-03 01:22:35,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:22:35,386 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:22:35,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:22:35,387 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:22:35,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-03 01:22:37,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:37,996 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:22:38,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:38,431 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-03 01:22:38,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:22:38,790 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:22:38,831 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-03 01:22:40,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:22:40,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 229 states and 286 transitions. [2023-12-03 01:22:40,499 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 286 transitions. [2023-12-03 01:22:40,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-03 01:22:40,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:22:40,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:22:40,500 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:22:40,501 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:22:40,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-03 01:22:43,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:43,209 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:22:43,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:43,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 01:22:43,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:22:44,075 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:22:44,116 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-03 01:22:55,773 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:22:55,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:22:55,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 230 states and 287 transitions. [2023-12-03 01:22:55,831 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 287 transitions. [2023-12-03 01:22:55,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-03 01:22:55,831 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:22:55,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:22:55,831 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:22:55,832 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:22:55,833 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-03 01:22:58,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:58,542 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:22:59,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:22:59,052 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 01:22:59,054 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:22:59,468 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-03 01:22:59,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-03 01:23:11,269 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:23:11,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:11,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 231 states and 288 transitions. [2023-12-03 01:23:11,334 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 288 transitions. [2023-12-03 01:23:11,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-03 01:23:11,335 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:11,335 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:11,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:23:11,336 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:23:11,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-03 01:23:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:14,204 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:23:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:14,674 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-03 01:23:14,676 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:15,100 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:23:15,128 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-03 01:23:16,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 232 states and 289 transitions. [2023-12-03 01:23:16,934 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 289 transitions. [2023-12-03 01:23:16,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-03 01:23:16,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:16,935 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:16,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:23:16,936 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:23:16,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-03 01:23:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:19,802 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:23:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:20,289 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-03 01:23:20,291 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:20,730 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:23:20,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-03 01:23:22,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:22,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 233 states and 290 transitions. [2023-12-03 01:23:22,613 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 290 transitions. [2023-12-03 01:23:22,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-03 01:23:22,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:22,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:22,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:23:22,614 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:23:22,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-03 01:23:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:25,473 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:23:25,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:25,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 01:23:25,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:26,344 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:23:26,371 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-03 01:23:38,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:23:38,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:38,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 234 states and 291 transitions. [2023-12-03 01:23:38,359 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 291 transitions. [2023-12-03 01:23:38,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-03 01:23:38,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:38,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:38,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:23:38,361 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:23:38,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-03 01:23:41,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:41,197 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:23:41,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:41,662 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 01:23:41,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:42,138 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-03 01:23:42,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-03 01:23:54,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:23:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:23:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 235 states and 292 transitions. [2023-12-03 01:23:54,344 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 292 transitions. [2023-12-03 01:23:54,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-03 01:23:54,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:23:54,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:23:54,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:23:54,345 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:23:54,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-03 01:23:57,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:57,034 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:23:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:23:57,494 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-03 01:23:57,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:23:57,948 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:23:57,976 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-03 01:24:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:24:00,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 236 states and 293 transitions. [2023-12-03 01:24:00,057 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 293 transitions. [2023-12-03 01:24:00,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-03 01:24:00,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:24:00,057 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:24:00,058 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:24:00,058 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:24:00,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-03 01:24:03,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:03,230 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:24:03,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:03,708 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-03 01:24:03,710 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:24:04,225 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:24:04,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-03 01:24:06,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:24:06,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 237 states and 294 transitions. [2023-12-03 01:24:06,508 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 294 transitions. [2023-12-03 01:24:06,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-03 01:24:06,509 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:24:06,509 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:24:06,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:24:06,510 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:24:06,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-03 01:24:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:09,473 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:24:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:09,949 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:24:09,951 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:24:10,440 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:24:10,469 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-03 01:24:22,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:24:22,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:24:22,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 238 states and 295 transitions. [2023-12-03 01:24:22,765 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 295 transitions. [2023-12-03 01:24:22,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-03 01:24:22,765 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:24:22,766 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:24:22,766 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:24:22,767 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:24:22,768 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-03 01:24:25,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:25,844 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:24:26,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:26,335 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:24:26,337 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:24:26,870 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-03 01:24:26,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-03 01:24:39,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:24:39,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:24:39,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 239 states and 296 transitions. [2023-12-03 01:24:39,366 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 296 transitions. [2023-12-03 01:24:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-03 01:24:39,367 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:24:39,367 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:24:39,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:24:39,368 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:24:39,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-03 01:24:42,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:42,678 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:24:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:43,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-03 01:24:43,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:24:43,719 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:24:43,749 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Forceful destruction successful, exit code 0 [2023-12-03 01:24:46,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:24:46,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 240 states and 297 transitions. [2023-12-03 01:24:46,167 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 297 transitions. [2023-12-03 01:24:46,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-03 01:24:46,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:24:46,168 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:24:46,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:24:46,169 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:24:46,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-03 01:24:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:49,551 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:24:50,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:50,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-03 01:24:50,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:24:50,645 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:24:50,676 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-03 01:24:53,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:24:53,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 241 states and 298 transitions. [2023-12-03 01:24:53,211 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 298 transitions. [2023-12-03 01:24:53,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-03 01:24:53,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:24:53,212 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:24:53,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:24:53,213 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:24:53,214 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-03 01:24:56,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:56,734 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:24:57,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:24:57,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:24:57,224 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:24:57,816 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:24:57,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-03 01:25:10,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:25:10,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:25:10,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 242 states and 299 transitions. [2023-12-03 01:25:10,443 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 299 transitions. [2023-12-03 01:25:10,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-03 01:25:10,443 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:25:10,443 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:25:10,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:25:10,444 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:25:10,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-03 01:25:13,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:13,997 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:25:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:14,476 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 01:25:14,478 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:25:15,111 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-03 01:25:15,144 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-03 01:25:27,853 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 01:25:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:25:27,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 243 states and 300 transitions. [2023-12-03 01:25:27,912 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 300 transitions. [2023-12-03 01:25:27,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-03 01:25:27,912 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:25:27,912 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:25:27,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:25:27,913 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:25:27,914 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-03 01:25:31,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:31,433 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:25:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:31,973 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-03 01:25:31,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:25:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:25:32,623 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-03 01:25:35,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:25:35,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 244 states and 301 transitions. [2023-12-03 01:25:35,513 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 301 transitions. [2023-12-03 01:25:35,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-03 01:25:35,514 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:25:35,514 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:25:35,514 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:25:35,515 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:25:35,516 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-03 01:25:39,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:39,252 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:25:39,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:39,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-03 01:25:39,797 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:25:40,453 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:25:40,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-03 01:25:43,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:25:43,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 245 states and 302 transitions. [2023-12-03 01:25:43,466 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 302 transitions. [2023-12-03 01:25:43,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-03 01:25:43,466 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:25:43,466 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:25:43,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:25:43,467 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:25:43,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-03 01:25:47,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:47,304 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:25:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:25:47,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-03 01:25:47,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:25:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:25:48,552 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-03 01:26:01,517 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:26:01,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:26:01,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 246 states and 303 transitions. [2023-12-03 01:26:01,577 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 303 transitions. [2023-12-03 01:26:01,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-03 01:26:01,577 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:26:01,577 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:26:01,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:26:01,578 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:26:01,580 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-03 01:26:05,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:26:05,509 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-03 01:26:05,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-03 01:26:06,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-03 01:26:06,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-03 01:26:06,674 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-03 01:26:06,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Forceful destruction successful, exit code 0 [2023-12-03 01:26:19,813 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-03 01:26:19,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-03 01:26:19,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 247 states and 304 transitions. [2023-12-03 01:26:19,879 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 304 transitions. [2023-12-03 01:26:19,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-03 01:26:19,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-03 01:26:19,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-03 01:26:19,879 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-03 01:26:19,880 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-03 01:26:19,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fd6edfb4-78b3-406e-b4bb-589bea239879/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process