./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:05:00,410 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:05:00,480 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 21:05:00,485 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:05:00,486 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:05:00,509 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:05:00,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:05:00,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:05:00,512 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:05:00,512 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:05:00,513 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:05:00,513 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:05:00,514 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:05:00,514 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:05:00,515 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:05:00,515 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:05:00,516 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:05:00,516 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:05:00,517 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:05:00,517 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:05:00,518 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:05:00,520 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:05:00,521 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:05:00,521 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:05:00,522 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:05:00,522 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:05:00,523 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:05:00,523 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:05:00,524 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:05:00,524 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:05:00,524 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:05:00,525 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:05:00,525 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_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-12-02 21:05:00,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:05:00,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:05:00,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:05:00,791 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:05:00,791 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:05:00,793 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-12-02 21:05:03,659 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:05:03,931 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:05:03,932 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-12-02 21:05:03,950 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data/2604db178/691cb071e13f4dfc959d4c00585129c5/FLAG188e6e43f [2023-12-02 21:05:03,964 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data/2604db178/691cb071e13f4dfc959d4c00585129c5 [2023-12-02 21:05:03,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:05:03,968 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:05:03,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:05:03,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:05:03,974 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:05:03,975 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:05:03" (1/1) ... [2023-12-02 21:05:03,976 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@338d0361 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:03, skipping insertion in model container [2023-12-02 21:05:03,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:05:03" (1/1) ... [2023-12-02 21:05:04,035 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:05:04,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:05:04,524 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:05:04,616 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:05:04,649 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:05:04,658 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:05:04,658 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04 WrapperNode [2023-12-02 21:05:04,659 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:05:04,660 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:05:04,660 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:05:04,660 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:05:04,681 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,799 INFO L138 Inliner]: procedures = 177, calls = 287, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1407 [2023-12-02 21:05:04,799 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:05:04,800 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:05:04,800 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:05:04,800 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:05:04,808 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,820 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,874 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,891 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,905 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:05:04,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:05:04,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:05:04,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:05:04,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:05:04" (1/1) ... [2023-12-02 21:05:04,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:05:04,930 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:05:04,942 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:05:04,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:05:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 21:05:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 21:05:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:05:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:05:04,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:05:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:05:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:05:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:05:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:05:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:05:04,979 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:05:04,980 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:05:05,167 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:05:05,169 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:05:06,515 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:05:08,028 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:05:08,028 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-02 21:05:08,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:05:08 BoogieIcfgContainer [2023-12-02 21:05:08,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:05:08,031 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:05:08,031 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:05:08,041 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:05:08,041 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:05:08" (1/1) ... [2023-12-02 21:05:08,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:05:08,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:08,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 148 states and 245 transitions. [2023-12-02 21:05:08,109 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 245 transitions. [2023-12-02 21:05:08,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:05:08,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:08,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:08,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:05:08,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 148 states and 243 transitions. [2023-12-02 21:05:08,309 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 243 transitions. [2023-12-02 21:05:08,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 21:05:08,310 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:08,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:08,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:08,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:05:08,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:08,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 150 states and 246 transitions. [2023-12-02 21:05:08,518 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions. [2023-12-02 21:05:08,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:05:08,519 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:08,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:08,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:08,622 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:05:08,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:08,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:05:08,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:08,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 150 states and 244 transitions. [2023-12-02 21:05:08,642 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 244 transitions. [2023-12-02 21:05:08,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 21:05:08,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:08,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:08,747 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:05:08,750 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:08,752 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:05:08,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:08,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 150 states and 240 transitions. [2023-12-02 21:05:08,759 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 240 transitions. [2023-12-02 21:05:08,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:05:08,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:08,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:08,865 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:05:08,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:08,871 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:05:08,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:08,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 150 states and 234 transitions. [2023-12-02 21:05:08,878 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 234 transitions. [2023-12-02 21:05:08,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 21:05:08,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:08,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:09,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:09,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:05:09,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:05:19,115 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:05:19,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:19,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 150 states and 228 transitions. [2023-12-02 21:05:19,318 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 228 transitions. [2023-12-02 21:05:19,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 21:05:19,320 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:19,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:05:19,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:05:19,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:05:19,568 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:05:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:05:29,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:05:39,894 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:05:49,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:05:59,946 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 [] [2023-12-02 21:05:59,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:05:59,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 163 states and 243 transitions. [2023-12-02 21:05:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 243 transitions. [2023-12-02 21:05:59,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 21:05:59,985 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:05:59,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:00,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:06:00,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:00,223 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:06:00,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:00,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 163 states and 241 transitions. [2023-12-02 21:06:00,233 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2023-12-02 21:06:00,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:06:00,235 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:00,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:00,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:00,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:06:00,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:00,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:06:00,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:00,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 163 states and 239 transitions. [2023-12-02 21:06:00,461 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2023-12-02 21:06:00,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:06:00,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:00,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:00,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:00,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:06:00,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:00,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:06:10,734 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 [] [2023-12-02 21:06:10,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:10,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 163 states and 237 transitions. [2023-12-02 21:06:10,762 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 237 transitions. [2023-12-02 21:06:10,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:06:10,763 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:10,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:10,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:11,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:06:11,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:11,078 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:06:21,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:31,131 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:41,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:51,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:06:51,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:06:51,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 166 states and 239 transitions. [2023-12-02 21:06:51,229 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 239 transitions. [2023-12-02 21:06:51,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 21:06:51,229 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:06:51,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:06:51,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:06:51,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:06:51,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:06:51,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:07:01,735 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:07:11,759 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:07:21,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:07:31,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:07:32,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 201 states and 286 transitions. [2023-12-02 21:07:32,343 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2023-12-02 21:07:32,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:07:32,343 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:32,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:07:32,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:32,578 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:07:32,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:32,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:07:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:32,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 200 states and 281 transitions. [2023-12-02 21:07:32,593 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 281 transitions. [2023-12-02 21:07:32,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 21:07:32,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:32,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:07:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:32,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:07:32,840 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:32,907 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 [2023-12-02 21:07:32,941 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 [2023-12-02 21:07:32,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:07:33,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:07:33,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 201 states and 281 transitions. [2023-12-02 21:07:33,178 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 281 transitions. [2023-12-02 21:07:33,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 21:07:33,179 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:07:33,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:07:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:07:33,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:07:33,447 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:07:33,510 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:07:43,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:07:53,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:08:03,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:08:13,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:08:13,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:13,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 186 states and 262 transitions. [2023-12-02 21:08:13,692 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 262 transitions. [2023-12-02 21:08:13,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 21:08:13,692 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:13,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:13,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:13,926 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:08:13,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:13,929 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:08:13,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:13,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 186 states and 260 transitions. [2023-12-02 21:08:13,964 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 260 transitions. [2023-12-02 21:08:13,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:08:13,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:13,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:14,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:14,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:08:14,186 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:14,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:08:14,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:14,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 186 states and 256 transitions. [2023-12-02 21:08:14,199 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 256 transitions. [2023-12-02 21:08:14,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 21:08:14,199 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:14,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:14,515 INFO L262 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:08:14,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:08:14,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:14,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 186 states and 255 transitions. [2023-12-02 21:08:14,542 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 255 transitions. [2023-12-02 21:08:14,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 21:08:14,542 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:14,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:14,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:14,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:08:14,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:14,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:08:15,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:15,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 194 states and 265 transitions. [2023-12-02 21:08:15,186 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 265 transitions. [2023-12-02 21:08:15,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 21:08:15,187 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:15,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:15,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:15,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:08:15,377 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:15,380 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:08:15,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:15,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 194 states and 263 transitions. [2023-12-02 21:08:15,386 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 263 transitions. [2023-12-02 21:08:15,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 21:08:15,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:15,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:15,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:15,660 INFO L262 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:08:15,662 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:15,725 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:08:16,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:16,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 195 states and 265 transitions. [2023-12-02 21:08:16,088 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 265 transitions. [2023-12-02 21:08:16,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 21:08:16,088 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:16,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:16,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:16,323 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:08:16,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:16,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:08:19,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:08:19,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:19,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 195 states and 263 transitions. [2023-12-02 21:08:19,228 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 263 transitions. [2023-12-02 21:08:19,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 21:08:19,228 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:19,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:19,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:19,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 737 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:08:19,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:19,553 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:08:19,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:08:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 195 states and 261 transitions. [2023-12-02 21:08:19,562 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 261 transitions. [2023-12-02 21:08:19,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 21:08:19,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:08:19,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:08:19,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:08:19,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:08:19,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:08:19,887 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:08:29,921 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 [] [2023-12-02 21:08:39,976 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:08:49,999 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:09:00,045 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 [] [2023-12-02 21:09:00,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:09:00,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 206 states and 274 transitions. [2023-12-02 21:09:00,073 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 274 transitions. [2023-12-02 21:09:00,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 21:09:00,074 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:09:00,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:09:00,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:09:00,435 INFO L262 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:09:00,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:09:00,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:09:00,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:09:00,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 209 states and 276 transitions. [2023-12-02 21:09:00,912 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 276 transitions. [2023-12-02 21:09:00,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:09:00,913 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:09:00,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:09:01,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:09:01,160 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:09:01,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:09:01,163 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:09:11,175 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 [] [2023-12-02 21:09:11,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:09:11,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 209 states and 274 transitions. [2023-12-02 21:09:11,201 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 274 transitions. [2023-12-02 21:09:11,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:09:11,201 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:09:11,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:09:11,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:09:11,437 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:09:11,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:09:11,441 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:09:11,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:09:11,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 209 states and 270 transitions. [2023-12-02 21:09:11,452 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 270 transitions. [2023-12-02 21:09:11,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:09:11,453 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:09:11,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:09:11,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:09:11,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:09:11,697 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:09:11,749 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:09:21,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:09:31,788 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:09:41,814 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:09:51,843 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:09:51,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:09:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 212 states and 272 transitions. [2023-12-02 21:09:51,873 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 272 transitions. [2023-12-02 21:09:51,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 21:09:51,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:09:51,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:10:00,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:00,114 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:10:00,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:00,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:00,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:00,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 213 states and 270 transitions. [2023-12-02 21:10:00,336 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 270 transitions. [2023-12-02 21:10:00,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 21:10:00,336 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:00,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:10:10,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:10:10,594 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) [2023-12-02 21:10:10,597 INFO L158 Benchmark]: Toolchain (without parser) took 306628.36ms. Allocated memory was 132.1MB in the beginning and 255.9MB in the end (delta: 123.7MB). Free memory was 83.8MB in the beginning and 176.4MB in the end (delta: -92.7MB). Peak memory consumption was 33.4MB. Max. memory is 16.1GB. [2023-12-02 21:10:10,597 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:10:10,597 INFO L158 Benchmark]: CACSL2BoogieTranslator took 689.13ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 50.8MB in the end (delta: 32.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 21:10:10,598 INFO L158 Benchmark]: Boogie Procedure Inliner took 139.48ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 50.8MB in the beginning and 131.0MB in the end (delta: -80.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2023-12-02 21:10:10,598 INFO L158 Benchmark]: Boogie Preprocessor took 116.19ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 121.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 21:10:10,599 INFO L158 Benchmark]: RCFGBuilder took 3113.48ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 121.6MB in the beginning and 143.3MB in the end (delta: -21.6MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. [2023-12-02 21:10:10,599 INFO L158 Benchmark]: CodeCheck took 302565.35ms. Allocated memory was 201.3MB in the beginning and 255.9MB in the end (delta: 54.5MB). Free memory was 143.3MB in the beginning and 176.4MB in the end (delta: -33.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2023-12-02 21:10:10,601 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 0.18ms. Allocated memory is still 132.1MB. Free memory is still 104.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 689.13ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 50.8MB in the end (delta: 32.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 139.48ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 50.8MB in the beginning and 131.0MB in the end (delta: -80.2MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.19ms. Allocated memory is still 167.8MB. Free memory was 131.0MB in the beginning and 121.6MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 3113.48ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 121.6MB in the beginning and 143.3MB in the end (delta: -21.6MB). Peak memory consumption was 102.0MB. Max. memory is 16.1GB. * CodeCheck took 302565.35ms. Allocated memory was 201.3MB in the beginning and 255.9MB in the end (delta: 54.5MB). Free memory was 143.3MB in the beginning and 176.4MB in the end (delta: -33.2MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:10:10,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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 f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:10:12,444 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:10:12,511 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 21:10:12,542 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:10:12,543 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:10:12,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:10:12,544 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:10:12,545 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:10:12,545 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:10:12,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:10:12,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:10:12,547 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:10:12,547 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:10:12,548 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:10:12,549 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:10:12,549 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:10:12,550 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:10:12,550 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:10:12,551 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:10:12,551 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:10:12,552 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:10:12,552 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:10:12,553 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:10:12,553 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:10:12,554 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:10:12,554 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:10:12,555 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:10:12,555 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:12,556 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:10:12,556 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:10:12,557 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:10:12,557 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:10:12,557 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:10:12,558 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:10:12,558 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:12,558 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:10:12,558 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:10:12,558 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_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6bf6d70eb07e52125f91259e05d2dabd63dc1b16a64b1f25a229511f6ff83f8 [2023-12-02 21:10:12,871 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:10:12,892 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:10:12,894 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:10:12,896 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:10:12,896 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:10:12,898 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-12-02 21:10:17,767 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:10:18,080 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:10:18,081 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-1.i [2023-12-02 21:10:18,096 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data/5a33905dc/a1d6b2aaf45542f6aff51b619409e5b3/FLAGb0e27dd20 [2023-12-02 21:10:18,110 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/data/5a33905dc/a1d6b2aaf45542f6aff51b619409e5b3 [2023-12-02 21:10:18,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:10:18,114 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:10:18,115 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:10:18,116 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:10:18,119 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:10:18,120 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:18,120 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31aac968 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18, skipping insertion in model container [2023-12-02 21:10:18,121 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:18,180 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:10:18,615 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:10:18,630 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 21:10:18,643 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:10:18,726 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:10:18,731 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:10:18,810 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:10:18,843 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:10:18,851 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:10:18,852 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18 WrapperNode [2023-12-02 21:10:18,852 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:10:18,853 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:10:18,853 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:10:18,854 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:10:18,861 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:18,892 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:18,946 INFO L138 Inliner]: procedures = 180, calls = 287, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1080 [2023-12-02 21:10:18,947 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:10:18,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:10:18,948 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:10:18,948 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:10:18,957 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:18,958 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:18,967 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:18,968 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:19,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:19,030 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:19,035 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:19,042 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:19,052 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:10:19,053 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:10:19,053 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:10:19,054 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:10:19,054 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:10:18" (1/1) ... [2023-12-02 21:10:19,059 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:10:19,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:10:19,082 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:10:19,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:10:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 21:10:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 21:10:19,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:10:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:10:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:10:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:10:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:10:19,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:10:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:10:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 21:10:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:10:19,119 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:10:19,119 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:10:19,323 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:10:19,325 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:10:33,374 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:10:33,818 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:10:33,818 INFO L309 CfgBuilder]: Removed 63 assume(true) statements. [2023-12-02 21:10:33,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:10:33 BoogieIcfgContainer [2023-12-02 21:10:33,819 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:10:33,820 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:10:33,820 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:10:33,827 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:10:33,827 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:10:33" (1/1) ... [2023-12-02 21:10:33,835 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:10:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:33,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 148 states and 245 transitions. [2023-12-02 21:10:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 245 transitions. [2023-12-02 21:10:33,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 21:10:33,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:33,886 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:33,886 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:33,887 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:33,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:10:34,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:34,196 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:34,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:34,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:10:34,266 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:34,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:34,289 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:10:34,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:34,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 148 states and 243 transitions. [2023-12-02 21:10:34,326 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 243 transitions. [2023-12-02 21:10:34,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 21:10:34,327 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:34,327 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:34,327 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:34,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:34,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:10:34,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:34,621 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:34,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:34,682 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:10:34,686 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:34,723 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:10:34,723 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:10:34,724 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:10:34,732 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 [2023-12-02 21:10:34,843 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:10:34,844 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 [2023-12-02 21:10:34,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:34,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:10:35,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:35,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 150 states and 246 transitions. [2023-12-02 21:10:35,138 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 246 transitions. [2023-12-02 21:10:35,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 21:10:35,140 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:35,140 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:35,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:35,141 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:35,144 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:10:35,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:35,466 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:35,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:35,571 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:10:35,573 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:35,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:35,578 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:10:35,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:10:35,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:35,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 150 states and 244 transitions. [2023-12-02 21:10:35,590 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 244 transitions. [2023-12-02 21:10:35,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-12-02 21:10:35,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:35,592 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:35,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:35,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:35,596 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:10:35,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:35,902 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:36,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:36,046 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:10:36,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:36,050 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:36,053 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 21:10:36,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:36,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 150 states and 240 transitions. [2023-12-02 21:10:36,061 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 240 transitions. [2023-12-02 21:10:36,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-02 21:10:36,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:36,063 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:36,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:36,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:36,073 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 21:10:36,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:36,426 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:36,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:10:36,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:36,561 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:10:36,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 21:10:36,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:36,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 150 states and 234 transitions. [2023-12-02 21:10:36,570 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 234 transitions. [2023-12-02 21:10:36,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-12-02 21:10:36,572 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:36,572 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:36,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:36,573 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:36,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 21:10:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:36,941 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:37,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:37,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:10:37,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:37,114 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:37,118 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 21:10:38,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:38,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 150 states and 226 transitions. [2023-12-02 21:10:38,132 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 226 transitions. [2023-12-02 21:10:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 21:10:38,133 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:38,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:38,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:38,138 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:38,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 21:10:38,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:38,638 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:38,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:38,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:10:38,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:39,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:39,045 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:10:39,045 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-02 21:10:40,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:40,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 163 states and 241 transitions. [2023-12-02 21:10:40,212 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 241 transitions. [2023-12-02 21:10:40,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:10:40,213 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:40,214 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:40,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:40,215 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:40,216 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 21:10:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:40,631 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:40,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:40,852 INFO L262 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:10:40,854 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:40,858 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:40,864 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 21:10:40,864 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Exception during sending of exit command (exit): Stream closed [2023-12-02 21:10:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 163 states and 239 transitions. [2023-12-02 21:10:40,879 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 239 transitions. [2023-12-02 21:10:40,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:10:40,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:40,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:40,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:40,882 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:40,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 21:10:41,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:41,388 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:41,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:41,666 INFO L262 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:10:41,668 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:41,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 21:10:41,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:41,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 163 states and 237 transitions. [2023-12-02 21:10:41,684 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 237 transitions. [2023-12-02 21:10:41,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:10:41,685 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:41,685 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:41,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:41,686 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:41,687 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 21:10:42,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:42,184 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:42,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:42,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:10:42,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:42,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:10:42,579 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 21:10:42,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:10:42,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 166 states and 239 transitions. [2023-12-02 21:10:42,595 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 239 transitions. [2023-12-02 21:10:42,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 21:10:42,596 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:10:42,596 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:10:42,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:10:42,597 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:10:42,604 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 21:10:43,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:43,183 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:10:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:10:43,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:10:43,480 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:10:43,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:10:43,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-02 21:10:54,388 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:04,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:14,439 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:24,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:27,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:11:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:29,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 201 states and 286 transitions. [2023-12-02 21:11:29,190 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 286 transitions. [2023-12-02 21:11:29,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:11:29,190 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:29,191 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:29,191 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:29,192 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:29,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 21:11:29,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:29,843 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:30,113 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:11:30,115 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:30,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:11:30,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 21:11:30,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:30,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 200 states and 281 transitions. [2023-12-02 21:11:30,136 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 281 transitions. [2023-12-02 21:11:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 21:11:30,136 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:30,137 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:30,137 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:30,138 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:30,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 21:11:30,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:30,834 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:31,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:31,149 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:11:31,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:31,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:11:31,237 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 21:11:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 200 states and 279 transitions. [2023-12-02 21:11:31,612 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 279 transitions. [2023-12-02 21:11:31,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 21:11:31,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:31,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:31,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:31,614 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:31,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 21:11:32,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:32,262 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:32,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:32,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:11:32,558 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:32,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:11:32,658 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 21:11:43,068 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 [] [2023-12-02 21:11:43,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:43,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 201 states and 280 transitions. [2023-12-02 21:11:43,114 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 280 transitions. [2023-12-02 21:11:43,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 21:11:43,114 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:43,114 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:43,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:43,115 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:43,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 21:11:43,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:43,748 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:44,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:44,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:11:44,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:44,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:11:44,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 21:11:44,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:44,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 261 states to 186 states and 261 transitions. [2023-12-02 21:11:44,220 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 261 transitions. [2023-12-02 21:11:44,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:11:44,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:44,221 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:44,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:44,222 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:44,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 21:11:45,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:45,147 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:45,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:45,436 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:11:45,438 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:45,447 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:11:45,447 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:11:45,448 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:11:45,449 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 [2023-12-02 21:11:45,481 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:11:45,481 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 [2023-12-02 21:11:45,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:11:45,578 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 21:11:46,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:46,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 188 states and 264 transitions. [2023-12-02 21:11:46,242 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 264 transitions. [2023-12-02 21:11:46,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 21:11:46,242 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:46,242 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:46,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:46,243 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:46,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 21:11:46,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:46,921 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:47,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:47,221 INFO L262 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:11:47,223 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:47,225 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:11:47,233 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 21:11:57,253 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 [] [2023-12-02 21:11:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:57,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 188 states and 262 transitions. [2023-12-02 21:11:57,282 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 262 transitions. [2023-12-02 21:11:57,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 21:11:57,282 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:57,282 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:57,282 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:57,283 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:57,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 21:11:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:58,117 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:58,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:58,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:11:58,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:11:58,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 21:11:58,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:11:58,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 188 states and 258 transitions. [2023-12-02 21:11:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 258 transitions. [2023-12-02 21:11:58,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 21:11:58,424 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:11:58,424 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:11:58,424 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:11:58,425 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:11:58,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 21:11:59,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:59,369 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:11:59,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:11:59,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:11:59,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:11:59,812 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:11:59,824 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 21:12:00,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:00,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 257 states to 188 states and 257 transitions. [2023-12-02 21:12:00,303 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 257 transitions. [2023-12-02 21:12:00,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 21:12:00,303 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:00,303 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:12:00,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:12:00,304 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:12:00,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 21:12:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:01,420 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:12:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:01,811 INFO L262 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:12:01,814 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:01,960 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:12:01,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 21:12:13,012 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 [] [2023-12-02 21:12:23,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:33,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:12:43,085 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 [] [2023-12-02 21:12:43,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 196 states and 267 transitions. [2023-12-02 21:12:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 267 transitions. [2023-12-02 21:12:43,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 21:12:43,119 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:43,119 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:12:43,119 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:12:43,120 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:12:43,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 21:12:44,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:44,217 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:12:44,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:44,496 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:12:44,497 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:44,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:12:44,511 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 21:12:44,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:12:44,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 196 states and 265 transitions. [2023-12-02 21:12:44,525 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 265 transitions. [2023-12-02 21:12:44,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 21:12:44,526 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:12:44,526 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:12:44,526 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:12:44,527 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:12:44,528 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 21:12:45,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:45,741 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:12:46,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:12:46,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:12:46,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:12:46,331 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:12:46,347 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 21:12:56,385 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 [] [2023-12-02 21:13:06,406 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 [] [2023-12-02 21:13:06,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:06,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 197 states and 267 transitions. [2023-12-02 21:13:06,442 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 267 transitions. [2023-12-02 21:13:06,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 21:13:06,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:06,443 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:06,443 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:06,443 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:06,444 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 21:13:07,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:07,426 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:07,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:07,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:13:07,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:07,735 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:13:07,748 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 21:13:07,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:07,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 197 states and 265 transitions. [2023-12-02 21:13:07,789 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 265 transitions. [2023-12-02 21:13:07,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 21:13:07,790 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:07,790 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:07,790 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:07,791 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:07,792 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 21:13:08,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:08,953 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:09,282 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:13:09,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:09,425 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:13:09,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 21:13:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:09,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 208 states and 278 transitions. [2023-12-02 21:13:09,521 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 278 transitions. [2023-12-02 21:13:09,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 21:13:09,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:09,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:09,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:09,522 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:09,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 21:13:10,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:10,897 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:11,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:11,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 722 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:13:11,392 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:11,395 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:13:11,412 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 21:13:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 208 states and 276 transitions. [2023-12-02 21:13:11,425 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 276 transitions. [2023-12-02 21:13:11,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:13:11,425 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:11,426 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:11,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:11,426 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:11,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 21:13:12,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:12,561 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:13,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:13,059 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:13:13,061 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:13,228 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 21:13:13,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 21:13:23,273 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 [] [2023-12-02 21:13:33,294 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 [] [2023-12-02 21:13:33,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 211 states and 278 transitions. [2023-12-02 21:13:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 278 transitions. [2023-12-02 21:13:33,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:13:33,325 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:33,325 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:33,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:33,326 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:33,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 21:13:34,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:34,746 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:35,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:35,077 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:13:35,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:35,080 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:13:35,099 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 21:13:35,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:35,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 211 states and 276 transitions. [2023-12-02 21:13:35,126 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 276 transitions. [2023-12-02 21:13:35,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:13:35,126 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:35,127 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:35,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:35,127 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:35,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 21:13:36,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:36,542 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:36,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:13:36,868 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:13:36,889 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 21:13:36,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:36,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 211 states and 272 transitions. [2023-12-02 21:13:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 272 transitions. [2023-12-02 21:13:36,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:13:36,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:36,901 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:36,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:36,902 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:36,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 21:13:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:38,302 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:38,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:13:38,684 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:38,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:13:38,881 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 21:13:38,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:38,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 214 states and 274 transitions. [2023-12-02 21:13:38,896 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 274 transitions. [2023-12-02 21:13:38,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 21:13:38,896 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:38,897 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:38,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:38,897 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:38,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 21:13:40,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:40,412 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:40,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:40,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:13:40,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:40,907 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 21:13:40,930 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 21:13:41,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:41,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 215 states and 272 transitions. [2023-12-02 21:13:41,591 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 272 transitions. [2023-12-02 21:13:41,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 21:13:41,591 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:41,591 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:41,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:41,592 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:41,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 21:13:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:43,198 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:43,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:43,536 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:13:43,537 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:43,695 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:13:43,719 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 21:13:54,440 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 [] [2023-12-02 21:13:54,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:13:54,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 216 states and 273 transitions. [2023-12-02 21:13:54,484 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 273 transitions. [2023-12-02 21:13:54,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 21:13:54,484 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:13:54,484 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:13:54,484 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:13:54,485 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:13:54,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 21:13:56,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:56,254 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:13:56,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:13:56,600 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:13:56,602 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:13:56,788 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:13:56,817 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 21:14:07,579 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 [] [2023-12-02 21:14:07,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:07,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 217 states and 274 transitions. [2023-12-02 21:14:07,627 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 274 transitions. [2023-12-02 21:14:07,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 21:14:07,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:07,628 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:14:07,628 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:14:07,629 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:14:07,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 21:14:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:09,416 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:09,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:14:09,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:09,977 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 21:14:10,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 21:14:20,760 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 [] [2023-12-02 21:14:20,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:20,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 218 states and 275 transitions. [2023-12-02 21:14:20,807 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 275 transitions. [2023-12-02 21:14:20,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 21:14:20,807 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:20,807 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:14:20,807 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:14:20,808 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:14:20,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 21:14:22,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:22,673 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:23,051 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:14:23,053 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:23,255 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 21:14:23,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 21:14:24,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:24,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 219 states and 276 transitions. [2023-12-02 21:14:24,117 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 276 transitions. [2023-12-02 21:14:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 21:14:24,117 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:24,118 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:14:24,118 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:14:24,118 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:14:24,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 21:14:26,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:26,111 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:26,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:26,481 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:14:26,482 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:26,691 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 21:14:26,720 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 21:14:27,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:27,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 220 states and 277 transitions. [2023-12-02 21:14:27,553 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 277 transitions. [2023-12-02 21:14:27,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 21:14:27,553 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:27,554 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:14:27,554 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:14:27,554 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:14:27,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 21:14:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:29,571 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:29,924 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:14:29,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:30,129 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 21:14:30,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 21:14:41,085 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 [] [2023-12-02 21:14:41,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:41,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 221 states and 278 transitions. [2023-12-02 21:14:41,134 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 278 transitions. [2023-12-02 21:14:41,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 21:14:41,135 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:41,135 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:14:41,135 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:14:41,136 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:14:41,137 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 21:14:43,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:43,060 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:43,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:43,452 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:14:43,454 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:43,709 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 21:14:43,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 21:14:54,758 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 [] [2023-12-02 21:14:54,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:54,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 222 states and 279 transitions. [2023-12-02 21:14:54,810 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 279 transitions. [2023-12-02 21:14:54,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 21:14:54,811 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:54,811 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:14:54,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:14:54,812 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:14:54,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 21:14:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:56,990 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:14:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:14:57,359 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:14:57,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:14:57,577 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 21:14:57,607 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 21:14:58,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:14:58,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 223 states and 280 transitions. [2023-12-02 21:14:58,549 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 280 transitions. [2023-12-02 21:14:58,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 21:14:58,550 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:14:58,550 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:14:58,550 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:14:58,550 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:14:58,551 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 21:15:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:00,655 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:15:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:01,030 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:15:01,031 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 21:15:01,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 21:15:02,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:15:02,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 224 states and 281 transitions. [2023-12-02 21:15:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 281 transitions. [2023-12-02 21:15:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 21:15:02,413 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:15:02,413 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:15:02,413 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:15:02,414 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:15:02,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 21:15:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:04,622 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:15:04,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:05,002 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:15:05,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:05,278 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 21:15:05,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 21:15:16,411 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 [] [2023-12-02 21:15:16,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:15:16,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 225 states and 282 transitions. [2023-12-02 21:15:16,461 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 282 transitions. [2023-12-02 21:15:16,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 21:15:16,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:15:16,462 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:15:16,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:15:16,463 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:15:16,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 21:15:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:18,598 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:15:18,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:19,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:15:19,003 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:19,265 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 21:15:19,298 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 21:15:30,509 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 [] [2023-12-02 21:15:30,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:15:30,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 226 states and 283 transitions. [2023-12-02 21:15:30,554 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 283 transitions. [2023-12-02 21:15:30,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 21:15:30,555 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:15:30,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:15:30,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:15:30,556 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:15:30,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 21:15:32,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:32,970 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:15:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:33,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:15:33,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:33,657 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 2 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 21:15:33,691 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 21:15:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:15:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 227 states and 284 transitions. [2023-12-02 21:15:34,928 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 284 transitions. [2023-12-02 21:15:34,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 21:15:34,928 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:15:34,928 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:15:34,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:15:34,929 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:15:34,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 21:15:37,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:37,490 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:15:37,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:37,898 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:15:37,899 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 66 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 21:15:38,270 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 21:15:39,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:15:39,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 228 states and 285 transitions. [2023-12-02 21:15:39,657 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 285 transitions. [2023-12-02 21:15:39,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 21:15:39,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:15:39,657 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:15:39,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:15:39,658 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:15:39,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 21:15:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:42,063 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:15:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:42,456 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:15:42,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:42,752 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 21:15:42,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 21:15:54,078 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:15:54,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:15:54,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 229 states and 286 transitions. [2023-12-02 21:15:54,134 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 286 transitions. [2023-12-02 21:15:54,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 21:15:54,134 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:15:54,134 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:15:54,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:15:54,135 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:15:54,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 21:15:56,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:56,633 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:15:57,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:15:57,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:15:57,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:15:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 21:15:57,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 21:16:08,909 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 [] [2023-12-02 21:16:08,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:08,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 230 states and 287 transitions. [2023-12-02 21:16:08,959 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 287 transitions. [2023-12-02 21:16:08,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 21:16:08,959 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:08,959 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:16:08,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:16:08,960 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:16:08,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 21:16:11,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:11,427 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:16:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:11,854 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:16:11,855 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:12,183 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 21:16:12,206 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 21:16:13,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:13,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 231 states and 288 transitions. [2023-12-02 21:16:13,637 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 288 transitions. [2023-12-02 21:16:13,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 21:16:13,638 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:13,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:16:13,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:16:13,639 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:16:13,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 21:16:16,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:16,243 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:16:16,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:16,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:16:16,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:17,020 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 2 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 21:16:17,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 21:16:18,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:18,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 232 states and 289 transitions. [2023-12-02 21:16:18,643 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 289 transitions. [2023-12-02 21:16:18,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 21:16:18,644 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:18,644 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:16:18,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:16:18,645 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:16:18,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 21:16:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:21,460 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:16:21,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:21,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:16:21,893 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:22,350 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 21:16:22,378 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 21:16:34,279 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 [] [2023-12-02 21:16:34,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:34,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 233 states and 290 transitions. [2023-12-02 21:16:34,343 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 290 transitions. [2023-12-02 21:16:34,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 21:16:34,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:34,344 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:16:34,344 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:16:34,345 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:16:34,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 21:16:37,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:37,303 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:16:37,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:37,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:16:37,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:38,116 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 21:16:38,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 21:16:49,923 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 [] [2023-12-02 21:16:49,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:49,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 234 states and 291 transitions. [2023-12-02 21:16:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 291 transitions. [2023-12-02 21:16:49,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 21:16:49,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:49,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:16:49,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:16:49,974 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:16:49,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 21:16:52,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:52,822 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:16:53,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:53,302 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:16:53,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:53,740 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 2 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 21:16:53,767 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 21:16:55,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:55,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 235 states and 292 transitions. [2023-12-02 21:16:55,527 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 292 transitions. [2023-12-02 21:16:55,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 21:16:55,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:55,528 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:16:55,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:16:55,529 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:16:55,529 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 21:16:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:58,272 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:16:58,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:58,749 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:16:58,751 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:59,174 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 2 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 21:16:59,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 21:17:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:01,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 236 states and 293 transitions. [2023-12-02 21:17:01,087 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 293 transitions. [2023-12-02 21:17:01,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 21:17:01,087 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:01,087 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:17:01,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:17:01,088 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:17:01,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 21:17:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:03,893 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:17:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:04,312 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:17:04,314 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:04,779 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 21:17:04,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 21:17:16,917 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 [] [2023-12-02 21:17:16,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:16,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 237 states and 294 transitions. [2023-12-02 21:17:16,967 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 294 transitions. [2023-12-02 21:17:16,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 21:17:16,967 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:16,967 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:17:16,967 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:17:16,968 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:17:16,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 21:17:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:20,110 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:17:20,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:20,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:17:20,556 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 21:17:21,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 21:17:33,031 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 [] [2023-12-02 21:17:33,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:33,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 238 states and 295 transitions. [2023-12-02 21:17:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 295 transitions. [2023-12-02 21:17:33,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 21:17:33,081 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:33,081 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:17:33,082 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:17:33,082 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:17:33,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 21:17:36,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:36,316 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:17:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:36,739 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:17:36,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:37,210 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 2 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:17:37,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 21:17:39,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:39,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 239 states and 296 transitions. [2023-12-02 21:17:39,379 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 296 transitions. [2023-12-02 21:17:39,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 21:17:39,380 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:39,380 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:17:39,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:17:39,381 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:17:39,381 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 21:17:42,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:42,522 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:17:43,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:43,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:17:43,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 2 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:17:43,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 21:17:45,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:45,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 240 states and 297 transitions. [2023-12-02 21:17:45,645 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 297 transitions. [2023-12-02 21:17:45,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 21:17:45,645 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:45,646 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:17:45,646 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:17:45,646 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:17:45,647 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 21:17:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:48,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:17:49,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:49,237 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:17:49,240 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:17:49,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 21:18:01,304 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.16s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:18:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 241 states and 298 transitions. [2023-12-02 21:18:01,360 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 298 transitions. [2023-12-02 21:18:01,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 21:18:01,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:01,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:18:01,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:18:01,361 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:18:01,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 21:18:04,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:04,405 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:18:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:04,855 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:18:04,858 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:05,422 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 21:18:05,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 21:18:17,885 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 [] [2023-12-02 21:18:17,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:17,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 242 states and 299 transitions. [2023-12-02 21:18:17,940 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 299 transitions. [2023-12-02 21:18:17,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 21:18:17,940 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:17,940 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:18:17,940 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:18:17,941 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:18:17,942 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 21:18:21,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:21,294 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:18:21,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:21,732 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:18:21,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:22,248 INFO L134 CoverageAnalysis]: Checked inductivity of 243 backedges. 2 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:18:22,281 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 21:18:24,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:24,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 243 states and 300 transitions. [2023-12-02 21:18:24,414 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 300 transitions. [2023-12-02 21:18:24,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 21:18:24,414 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:24,414 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:18:24,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:18:24,415 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:18:24,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 21:18:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:27,674 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:18:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:28,108 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:18:28,111 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:28,742 INFO L134 CoverageAnalysis]: Checked inductivity of 258 backedges. 2 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:18:28,772 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 21:18:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:31,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 244 states and 301 transitions. [2023-12-02 21:18:31,211 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 301 transitions. [2023-12-02 21:18:31,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 21:18:31,211 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:31,211 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:18:31,212 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:18:31,212 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:18:31,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 21:18:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:34,378 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:18:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:34,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:18:34,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:35,466 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:18:35,500 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 21:18:48,105 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 [] [2023-12-02 21:18:48,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:48,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 245 states and 302 transitions. [2023-12-02 21:18:48,168 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 302 transitions. [2023-12-02 21:18:48,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 21:18:48,168 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:48,168 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:18:48,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:18:48,169 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:18:48,170 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 21:18:51,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:51,758 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:18:52,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:52,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:18:52,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:52,859 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:18:52,894 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-02 21:19:05,428 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 [] [2023-12-02 21:19:05,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:05,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 246 states and 303 transitions. [2023-12-02 21:19:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 303 transitions. [2023-12-02 21:19:05,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 21:19:05,490 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:05,490 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:19:05,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:19:05,491 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:19:05,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 21:19:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:09,156 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:19:09,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:09,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:19:09,626 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:10,270 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 2 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:19:10,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-02 21:19:12,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:12,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 247 states and 304 transitions. [2023-12-02 21:19:12,924 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 304 transitions. [2023-12-02 21:19:12,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 21:19:12,925 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:12,925 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:19:12,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:19:12,926 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:19:12,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 21:19:16,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:16,442 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:19:16,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:16,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:19:16,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:17,636 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 21:19:17,673 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Forceful destruction successful, exit code 0 [2023-12-02 21:19:20,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 248 states and 305 transitions. [2023-12-02 21:19:20,686 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 305 transitions. [2023-12-02 21:19:20,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 21:19:20,687 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:20,687 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:19:20,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:19:20,688 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:19:20,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff5e78df-cdb4-43e7-b3cc-69df314fe47f/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process