./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.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_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/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_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/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_eaba6578-730d-4136-8e6d-1d7b19252c88/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 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:47:21,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:47:21,422 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 21:47:21,427 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:47:21,428 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:47:21,457 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:47:21,458 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:47:21,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:47:21,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:47:21,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:47:21,461 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:47:21,462 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:47:21,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:47:21,463 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:47:21,464 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:47:21,464 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:47:21,465 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:47:21,466 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:47:21,466 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:47:21,467 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:47:21,468 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:47:21,469 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:47:21,469 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:47:21,470 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:47:21,471 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:47:21,471 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:47:21,472 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:47:21,472 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:47:21,473 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:47:21,474 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:47:21,474 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:47:21,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:47:21,475 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_eaba6578-730d-4136-8e6d-1d7b19252c88/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2023-12-02 21:47:21,754 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:47:21,780 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:47:21,783 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:47:21,785 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:47:21,785 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:47:21,787 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2023-12-02 21:47:25,276 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:47:25,688 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:47:25,689 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2023-12-02 21:47:25,714 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data/a865f2695/45517c1de98a43d6a5c4577b6562201d/FLAG0cd19e7ea [2023-12-02 21:47:25,730 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data/a865f2695/45517c1de98a43d6a5c4577b6562201d [2023-12-02 21:47:25,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:47:25,734 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:47:25,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:47:25,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:47:25,741 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:47:25,742 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:47:25" (1/1) ... [2023-12-02 21:47:25,743 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7886682c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:25, skipping insertion in model container [2023-12-02 21:47:25,743 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:47:25" (1/1) ... [2023-12-02 21:47:25,858 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:47:26,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:47:26,697 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:47:26,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:47:26,939 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:47:26,948 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:47:26,948 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26 WrapperNode [2023-12-02 21:47:26,948 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:47:26,950 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:47:26,950 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:47:26,950 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:47:26,960 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,016 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,244 INFO L138 Inliner]: procedures = 177, calls = 732, calls flagged for inlining = 508, calls inlined = 1007, statements flattened = 6205 [2023-12-02 21:47:27,244 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:47:27,245 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:47:27,245 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:47:27,245 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:47:27,258 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,258 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,284 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,285 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,432 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,487 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,560 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,579 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:47:27,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:47:27,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:47:27,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:47:27,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:47:26" (1/1) ... [2023-12-02 21:47:27,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:47:27,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:47:27,653 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:47:27,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:47:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 21:47:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 21:47:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:47:27,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:47:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:47:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:47:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:47:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:47:27,696 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:47:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:47:27,697 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:47:27,697 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:47:27,924 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:47:27,927 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:47:32,322 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:47:34,526 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:47:34,526 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-12-02 21:47:34,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:47:34 BoogieIcfgContainer [2023-12-02 21:47:34,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:47:34,531 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:47:34,531 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:47:34,542 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:47:34,542 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:47:34" (1/1) ... [2023-12-02 21:47:34,551 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:47:34,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:34,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 3598 states and 5169 transitions. [2023-12-02 21:47:34,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5169 transitions. [2023-12-02 21:47:34,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:47:34,674 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:34,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:34,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:47:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:34,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 3598 states and 5167 transitions. [2023-12-02 21:47:34,890 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5167 transitions. [2023-12-02 21:47:34,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:47:34,891 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:34,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:34,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:35,071 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 21:47:35,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:35,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 3600 states and 5170 transitions. [2023-12-02 21:47:35,152 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5170 transitions. [2023-12-02 21:47:35,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 21:47:35,153 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:35,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:35,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:35,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:35,276 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 21:47:35,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:35,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 3600 states and 5168 transitions. [2023-12-02 21:47:35,307 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5168 transitions. [2023-12-02 21:47:35,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:47:35,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:35,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:35,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:35,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:35,444 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 21:47:35,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:35,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 3600 states and 5164 transitions. [2023-12-02 21:47:35,475 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5164 transitions. [2023-12-02 21:47:35,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 21:47:35,477 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:35,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:35,590 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:35,593 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:35,596 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 21:47:35,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:35,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5158 states to 3600 states and 5158 transitions. [2023-12-02 21:47:35,626 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5158 transitions. [2023-12-02 21:47:35,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:47:35,628 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:35,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:35,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:35,827 INFO L262 TraceCheckSpWp]: Trace formula consists of 269 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:47:35,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:35,835 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 21:47:45,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:47:45,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:47:45,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5152 states to 3600 states and 5152 transitions. [2023-12-02 21:47:45,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5152 transitions. [2023-12-02 21:47:45,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:47:45,962 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:47:45,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:47:46,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:47:46,179 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:47:46,182 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:47:46,265 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:47:56,431 WARN L539 Checker$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 21:48:06,454 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:48:16,476 WARN L539 Checker$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 21:48:26,506 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 21:48:26,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:26,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 3613 states and 5167 transitions. [2023-12-02 21:48:26,573 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5167 transitions. [2023-12-02 21:48:26,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:48:26,574 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:26,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:26,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:26,795 INFO L262 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:48:26,799 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:26,803 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 21:48:26,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:26,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 3613 states and 5165 transitions. [2023-12-02 21:48:26,831 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5165 transitions. [2023-12-02 21:48:26,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 21:48:26,832 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:26,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:27,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:27,068 INFO L262 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:48:27,071 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:27,075 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 21:48:27,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:27,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3613 states and 5163 transitions. [2023-12-02 21:48:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5163 transitions. [2023-12-02 21:48:27,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:48:27,107 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:27,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:27,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:48:27,429 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:27,433 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 21:48:37,447 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 21:48:37,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:48:37,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 3613 states and 5161 transitions. [2023-12-02 21:48:37,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5161 transitions. [2023-12-02 21:48:37,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:48:37,508 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:48:37,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:48:37,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:48:37,805 INFO L262 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:48:37,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:48:37,909 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 21:48:47,927 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:48:57,973 WARN L539 Checker$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 21:49:07,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:18,031 WARN L539 Checker$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 21:49:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:18,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3616 states and 5163 transitions. [2023-12-02 21:49:18,110 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5163 transitions. [2023-12-02 21:49:18,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:49:18,111 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:18,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:18,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:18,413 INFO L262 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:49:18,416 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:18,474 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 21:49:18,500 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 21:49:18,522 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 21:49:18,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:18,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 3618 states and 5166 transitions. [2023-12-02 21:49:18,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5166 transitions. [2023-12-02 21:49:18,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:49:18,652 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:18,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:18,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:18,990 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:18,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:18,996 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 21:49:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:19,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 3617 states and 5161 transitions. [2023-12-02 21:49:19,021 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5161 transitions. [2023-12-02 21:49:19,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:49:19,021 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:19,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:19,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:19,376 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:19,379 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:19,382 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 21:49:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:19,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 3617 states and 5157 transitions. [2023-12-02 21:49:19,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5157 transitions. [2023-12-02 21:49:19,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 21:49:19,409 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:19,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:19,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:19,724 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:19,727 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 21:49:19,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:19,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 3617 states and 5155 transitions. [2023-12-02 21:49:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5155 transitions. [2023-12-02 21:49:19,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 21:49:19,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:19,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:20,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:20,087 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:49:20,090 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:20,093 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 21:49:30,156 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:49:30,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:49:30,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5153 states to 3617 states and 5153 transitions. [2023-12-02 21:49:30,365 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5153 transitions. [2023-12-02 21:49:30,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 21:49:30,365 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:49:30,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:49:30,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:49:30,646 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:49:30,649 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:49:30,755 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:49:40,882 WARN L539 Checker$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 21:49:50,916 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:00,948 WARN L539 Checker$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 21:50:10,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:21,969 WARN L539 Checker$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 21:50:32,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:42,055 WARN L539 Checker$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 21:50:52,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.51s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:50:52,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:50:52,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 3661 states and 5210 transitions. [2023-12-02 21:50:52,619 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5210 transitions. [2023-12-02 21:50:52,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:50:52,620 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:50:52,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:50:52,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:50:52,886 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:50:52,888 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:50:52,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:51:02,908 WARN L539 Checker$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 21:51:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:51:02,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 3661 states and 5208 transitions. [2023-12-02 21:51:02,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5208 transitions. [2023-12-02 21:51:02,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:51:02,956 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:51:02,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:51:03,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:51:03,223 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:51:03,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:51:03,228 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 21:51:03,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:51:03,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 3661 states and 5204 transitions. [2023-12-02 21:51:03,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5204 transitions. [2023-12-02 21:51:03,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:51:03,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:51:03,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:51:03,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:51:03,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:51:03,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:51:03,549 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 21:51:03,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:51:03,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 3661 states and 5202 transitions. [2023-12-02 21:51:03,614 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5202 transitions. [2023-12-02 21:51:03,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:51:03,615 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:51:03,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:51:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:51:03,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:51:03,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:51:04,035 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 21:51:14,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:51:24,099 WARN L539 Checker$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 21:51:34,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:51:44,165 WARN L539 Checker$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 21:51:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:51:44,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 3664 states and 5204 transitions. [2023-12-02 21:51:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5204 transitions. [2023-12-02 21:51:44,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:51:44,213 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:51:44,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:51:44,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:51:44,468 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:51:44,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:51:44,545 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 21:51:54,561 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:52:04,594 WARN L539 Checker$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 21:52:14,625 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:52:24,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:52:24,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:24,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 3649 states and 5185 transitions. [2023-12-02 21:52:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5185 transitions. [2023-12-02 21:52:24,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 21:52:24,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:24,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:52:25,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:25,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 680 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:52:25,027 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:25,030 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 21:52:25,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:25,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 3649 states and 5184 transitions. [2023-12-02 21:52:25,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3649 states and 5184 transitions. [2023-12-02 21:52:25,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 21:52:25,063 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:25,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:52:25,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:25,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:52:25,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:25,501 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 21:52:25,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:25,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 3657 states and 5194 transitions. [2023-12-02 21:52:25,711 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 5194 transitions. [2023-12-02 21:52:25,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 21:52:25,711 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:25,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:52:35,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:52:35,364 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:52:35,366 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:52:35,417 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 21:52:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:52:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 3658 states and 5192 transitions. [2023-12-02 21:52:35,757 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5192 transitions. [2023-12-02 21:52:35,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 21:52:35,758 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:52:35,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:52:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:52:46,020 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 21:52:46,023 INFO L158 Benchmark]: Toolchain (without parser) took 320288.70ms. Allocated memory was 136.3MB in the beginning and 480.2MB in the end (delta: 343.9MB). Free memory was 87.7MB in the beginning and 117.1MB in the end (delta: -29.4MB). Peak memory consumption was 317.7MB. Max. memory is 16.1GB. [2023-12-02 21:52:46,024 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 98.6MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:52:46,024 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1212.72ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 87.6MB in the beginning and 131.5MB in the end (delta: -43.8MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. [2023-12-02 21:52:46,025 INFO L158 Benchmark]: Boogie Procedure Inliner took 294.57ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 101.3MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2023-12-02 21:52:46,025 INFO L158 Benchmark]: Boogie Preprocessor took 369.74ms. Allocated memory is still 192.9MB. Free memory was 101.3MB in the beginning and 127.3MB in the end (delta: -26.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2023-12-02 21:52:46,026 INFO L158 Benchmark]: RCFGBuilder took 6914.11ms. Allocated memory was 192.9MB in the beginning and 480.2MB in the end (delta: 287.3MB). Free memory was 127.3MB in the beginning and 226.5MB in the end (delta: -99.3MB). Peak memory consumption was 198.3MB. Max. memory is 16.1GB. [2023-12-02 21:52:46,026 INFO L158 Benchmark]: CodeCheck took 311491.37ms. Allocated memory is still 480.2MB. Free memory was 226.5MB in the beginning and 117.1MB in the end (delta: 109.5MB). Peak memory consumption was 109.5MB. Max. memory is 16.1GB. [2023-12-02 21:52:46,029 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 0.28ms. Allocated memory is still 98.6MB. Free memory is still 52.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1212.72ms. Allocated memory was 136.3MB in the beginning and 192.9MB in the end (delta: 56.6MB). Free memory was 87.6MB in the beginning and 131.5MB in the end (delta: -43.8MB). Peak memory consumption was 35.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 294.57ms. Allocated memory is still 192.9MB. Free memory was 131.5MB in the beginning and 101.3MB in the end (delta: 30.2MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 369.74ms. Allocated memory is still 192.9MB. Free memory was 101.3MB in the beginning and 127.3MB in the end (delta: -26.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * RCFGBuilder took 6914.11ms. Allocated memory was 192.9MB in the beginning and 480.2MB in the end (delta: 287.3MB). Free memory was 127.3MB in the beginning and 226.5MB in the end (delta: -99.3MB). Peak memory consumption was 198.3MB. Max. memory is 16.1GB. * CodeCheck took 311491.37ms. Allocated memory is still 480.2MB. Free memory was 226.5MB in the beginning and 117.1MB in the end (delta: 109.5MB). Peak memory consumption was 109.5MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:52:46,221 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/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_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/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_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/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_eaba6578-730d-4136-8e6d-1d7b19252c88/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 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:52:47,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:52:48,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 21:52:48,046 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:52:48,047 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:52:48,047 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:52:48,048 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:52:48,049 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:52:48,049 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:52:48,050 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:52:48,050 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:52:48,051 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:52:48,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:52:48,052 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:52:48,053 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:52:48,054 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:52:48,054 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:52:48,055 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:52:48,056 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:52:48,056 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:52:48,057 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:52:48,057 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:52:48,058 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:52:48,058 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:52:48,059 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:52:48,059 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:52:48,060 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:52:48,060 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:48,060 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:52:48,061 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:52:48,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:52:48,062 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:52:48,062 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:52:48,062 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:52:48,063 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:52:48,063 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:52:48,063 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:52:48,063 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_eaba6578-730d-4136-8e6d-1d7b19252c88/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 501447f5c37550c3f5e8fdfcef22269dce5065ef789f4faf9fbe7fcfc263a044 [2023-12-02 21:52:48,372 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:52:48,392 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:52:48,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:52:48,397 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:52:48,397 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:52:48,399 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2023-12-02 21:52:51,349 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:52:51,699 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:52:51,700 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test9-1.i [2023-12-02 21:52:51,723 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data/946182314/939a06cb9a4b4a6dbb08cc6abff3c7b8/FLAG0de319da0 [2023-12-02 21:52:51,737 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/data/946182314/939a06cb9a4b4a6dbb08cc6abff3c7b8 [2023-12-02 21:52:51,739 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:52:51,740 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:52:51,742 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:52:51,742 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:52:51,747 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:52:51,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:52:51" (1/1) ... [2023-12-02 21:52:51,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d67e9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:51, skipping insertion in model container [2023-12-02 21:52:51,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:52:51" (1/1) ... [2023-12-02 21:52:51,815 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:52:52,494 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:52:52,509 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 21:52:52,530 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:52:52,642 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:52:52,646 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:52:52,752 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:52:52,777 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:52:52,782 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:52:52,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52 WrapperNode [2023-12-02 21:52:52,783 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:52:52,784 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:52:52,784 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:52:52,784 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:52:52,789 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:52,836 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:52,993 INFO L138 Inliner]: procedures = 180, calls = 732, calls flagged for inlining = 508, calls inlined = 1007, statements flattened = 5885 [2023-12-02 21:52:52,994 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:52:52,994 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:52:52,994 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:52:52,995 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:52:53,002 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,023 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,023 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,094 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,178 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,212 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,235 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:52:53,236 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:52:53,236 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:52:53,236 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:52:53,237 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:52:52" (1/1) ... [2023-12-02 21:52:53,241 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:52:53,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:52:53,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:52:53,285 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:52:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 21:52:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 21:52:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:52:53,311 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:52:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:52:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:52:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:52:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:52:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:52:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 21:52:53,312 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:52:53,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:52:53,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:52:53,518 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:52:53,528 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:53:13,286 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:53:14,114 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:53:14,115 INFO L309 CfgBuilder]: Removed 54 assume(true) statements. [2023-12-02 21:53:14,118 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:53:14 BoogieIcfgContainer [2023-12-02 21:53:14,118 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:53:14,119 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:53:14,119 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:53:14,129 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:53:14,130 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:53:14" (1/1) ... [2023-12-02 21:53:14,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:53:14,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:14,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5169 states to 3598 states and 5169 transitions. [2023-12-02 21:53:14,270 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5169 transitions. [2023-12-02 21:53:14,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-12-02 21:53:14,272 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:14,273 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:14,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:14,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:14,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:53:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:14,542 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:14,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:14,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:14,601 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:14,617 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 21:53:14,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:53:14,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:14,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 3598 states and 5167 transitions. [2023-12-02 21:53:14,664 INFO L276 IsEmpty]: Start isEmpty. Operand 3598 states and 5167 transitions. [2023-12-02 21:53:14,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:53:14,664 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:14,664 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:14,665 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:14,666 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:14,667 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:53:14,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:14,928 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:15,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:15,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:53:15,014 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:15,065 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:15,067 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:15,067 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:15,084 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 21:53:15,208 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:53:15,210 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 21:53:15,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:53:15,239 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:53:15,240 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:53:15,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:15,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5170 states to 3600 states and 5170 transitions. [2023-12-02 21:53:15,856 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5170 transitions. [2023-12-02 21:53:15,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-12-02 21:53:15,857 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:15,857 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:15,858 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:15,859 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:15,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:53:16,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:16,149 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:16,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:16,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:16,269 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:16,272 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 21:53:16,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:53:16,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:16,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 3600 states and 5168 transitions. [2023-12-02 21:53:16,306 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5168 transitions. [2023-12-02 21:53:16,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-12-02 21:53:16,317 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:16,318 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:16,318 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:16,319 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:16,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:53:16,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:16,605 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:16,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:16,707 INFO L262 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:16,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:16,711 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 21:53:16,715 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 21:53:16,715 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:53:16,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:16,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 3600 states and 5164 transitions. [2023-12-02 21:53:16,743 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5164 transitions. [2023-12-02 21:53:16,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-12-02 21:53:16,744 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:16,744 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:16,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:16,746 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:16,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 21:53:17,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:17,043 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:17,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:17,168 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:17,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:17,173 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 21:53:17,176 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 21:53:17,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5158 states to 3600 states and 5158 transitions. [2023-12-02 21:53:17,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5158 transitions. [2023-12-02 21:53:17,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-12-02 21:53:17,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:17,221 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:17,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:17,223 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:17,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 21:53:17,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:17,554 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:17,706 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:17,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:17,712 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 21:53:17,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 21:53:17,718 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:53:18,839 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:53:18,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:18,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5150 states to 3600 states and 5150 transitions. [2023-12-02 21:53:18,878 INFO L276 IsEmpty]: Start isEmpty. Operand 3600 states and 5150 transitions. [2023-12-02 21:53:18,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 21:53:18,879 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:18,879 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:18,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:18,884 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:18,886 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 21:53:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:19,203 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:19,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:19,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:53:19,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:19,519 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 21:53:19,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 21:53:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:21,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 3613 states and 5165 transitions. [2023-12-02 21:53:21,063 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5165 transitions. [2023-12-02 21:53:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 21:53:21,065 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:21,065 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:21,065 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:21,068 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:21,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 21:53:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:21,475 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:21,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:21,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:21,703 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:21,707 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 21:53:21,712 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2023-12-02 21:53:21,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:21,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3613 states and 5163 transitions. [2023-12-02 21:53:21,740 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5163 transitions. [2023-12-02 21:53:21,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 21:53:21,741 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:21,741 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:21,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:21,743 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:21,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 21:53:22,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:22,230 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:22,473 INFO L262 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:22,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:22,477 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 21:53:22,482 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 21:53:22,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:22,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5161 states to 3613 states and 5161 transitions. [2023-12-02 21:53:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 3613 states and 5161 transitions. [2023-12-02 21:53:22,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:53:22,500 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:22,500 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:22,501 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:22,501 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:22,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 21:53:23,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:23,027 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:23,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:23,273 INFO L262 TraceCheckSpWp]: Trace formula consists of 339 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:53:23,275 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:23,400 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 21:53:23,404 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 21:53:23,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:23,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3616 states and 5163 transitions. [2023-12-02 21:53:23,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3616 states and 5163 transitions. [2023-12-02 21:53:23,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:53:23,430 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:23,430 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:23,430 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:23,431 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:23,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 21:53:24,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:24,039 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:24,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:24,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:53:24,344 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:24,408 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 21:53:24,413 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 21:53:34,428 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 21:53:34,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5164 states to 3617 states and 5164 transitions. [2023-12-02 21:53:34,533 INFO L276 IsEmpty]: Start isEmpty. Operand 3617 states and 5164 transitions. [2023-12-02 21:53:34,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 21:53:34,534 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:34,534 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:34,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:34,535 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:34,536 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 21:53:35,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:35,219 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:35,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:35,538 INFO L262 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:53:35,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:35,604 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 21:53:35,609 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 21:53:45,683 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 21:53:45,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:45,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 3618 states and 5165 transitions. [2023-12-02 21:53:45,732 INFO L276 IsEmpty]: Start isEmpty. Operand 3618 states and 5165 transitions. [2023-12-02 21:53:45,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:53:45,732 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:45,732 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:45,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:45,733 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:45,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 21:53:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:46,581 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:46,895 INFO L262 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:53:46,897 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:46,905 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:46,905 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:46,906 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:53:46,908 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 21:53:46,939 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:53:46,940 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 21:53:46,998 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 21:53:47,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 21:53:47,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:47,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5168 states to 3620 states and 5168 transitions. [2023-12-02 21:53:47,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3620 states and 5168 transitions. [2023-12-02 21:53:47,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 21:53:47,144 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:47,144 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:47,144 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:47,145 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:47,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 21:53:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:47,883 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:48,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:48,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:48,168 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:48,170 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 21:53:48,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 21:53:48,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 3619 states and 5163 transitions. [2023-12-02 21:53:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5163 transitions. [2023-12-02 21:53:48,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 21:53:48,196 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:48,196 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:48,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:48,198 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:48,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 21:53:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:48,896 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:49,182 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:49,184 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:49,185 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 21:53:49,193 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-12-02 21:53:49,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5159 states to 3619 states and 5159 transitions. [2023-12-02 21:53:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5159 transitions. [2023-12-02 21:53:49,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 21:53:49,209 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:49,209 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:49,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:49,210 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:49,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 21:53:49,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:49,993 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:50,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:50,263 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:50,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:50,266 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 21:53:50,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 21:53:50,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:50,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5157 states to 3619 states and 5157 transitions. [2023-12-02 21:53:50,291 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5157 transitions. [2023-12-02 21:53:50,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 21:53:50,291 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:50,291 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:50,291 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:50,292 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:50,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 21:53:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:51,044 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:51,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:53:51,341 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:51,344 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 21:53:51,353 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 21:53:51,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:53:51,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5155 states to 3619 states and 5155 transitions. [2023-12-02 21:53:51,386 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5155 transitions. [2023-12-02 21:53:51,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 21:53:51,386 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:53:51,386 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:53:51,387 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:53:51,387 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:53:51,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 21:53:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:52,291 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:53:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:53:52,611 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:53:52,613 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:53:52,881 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 21:53:52,891 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 21:54:00,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:54:10,428 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:54:19,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.82s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:54:29,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:54:32,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:54:35,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:35,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 3665 states and 5214 transitions. [2023-12-02 21:54:35,847 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5214 transitions. [2023-12-02 21:54:35,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:54:35,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:35,848 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:35,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:35,849 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:35,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 21:54:36,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:36,702 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:37,055 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:37,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:37,059 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 21:54:37,069 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 21:54:37,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:37,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 3665 states and 5212 transitions. [2023-12-02 21:54:37,086 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5212 transitions. [2023-12-02 21:54:37,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:54:37,086 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:37,086 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:37,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:37,087 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:37,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 21:54:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:37,981 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:38,344 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:38,345 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:38,347 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 21:54:38,359 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 21:54:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:38,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 3665 states and 5208 transitions. [2023-12-02 21:54:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5208 transitions. [2023-12-02 21:54:38,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:54:38,375 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:38,375 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:38,375 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:38,376 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:38,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 21:54:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:39,348 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:39,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:54:39,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:39,901 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 21:54:39,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 21:54:39,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:39,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 3648 states and 5187 transitions. [2023-12-02 21:54:39,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3648 states and 5187 transitions. [2023-12-02 21:54:39,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:54:39,937 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:39,937 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:39,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:39,938 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:39,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 21:54:41,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:41,033 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:41,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:41,384 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:54:41,386 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:41,568 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 21:54:41,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-12-02 21:54:41,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:41,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 3651 states and 5189 transitions. [2023-12-02 21:54:41,603 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 5189 transitions. [2023-12-02 21:54:41,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:54:41,603 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:41,604 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:41,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:41,604 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:41,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 21:54:42,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:42,718 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:43,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:43,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:43,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:43,067 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 21:54:43,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 21:54:53,102 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 21:54:53,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:53,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 3651 states and 5187 transitions. [2023-12-02 21:54:53,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 5187 transitions. [2023-12-02 21:54:53,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 21:54:53,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:53,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:53,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:53,139 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:53,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 21:54:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:54,327 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:54,796 INFO L262 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:54:54,798 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:54,799 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 21:54:54,815 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Forceful destruction successful, exit code 0 [2023-12-02 21:54:55,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:55,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 3651 states and 5186 transitions. [2023-12-02 21:54:55,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3651 states and 5186 transitions. [2023-12-02 21:54:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 21:54:55,125 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:55,125 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:55,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:55,126 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:55,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 21:54:56,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:56,565 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:56,904 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:54:56,906 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:57,072 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 21:54:57,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 21:54:57,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:54:57,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5184 states to 3652 states and 5184 transitions. [2023-12-02 21:54:57,855 INFO L276 IsEmpty]: Start isEmpty. Operand 3652 states and 5184 transitions. [2023-12-02 21:54:57,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 21:54:57,855 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:54:57,855 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:54:57,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:54:57,856 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:54:57,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 21:54:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:59,345 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:54:59,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:54:59,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:54:59,669 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:54:59,846 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 21:54:59,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 21:55:10,582 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 21:55:10,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:10,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5185 states to 3653 states and 5185 transitions. [2023-12-02 21:55:10,638 INFO L276 IsEmpty]: Start isEmpty. Operand 3653 states and 5185 transitions. [2023-12-02 21:55:10,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 21:55:10,638 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:10,638 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:10,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:10,639 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:10,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 21:55:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:12,083 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:12,477 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:55:12,479 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:12,668 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 21:55:12,690 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 21:55:23,499 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 21:55:23,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:23,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 3654 states and 5186 transitions. [2023-12-02 21:55:23,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3654 states and 5186 transitions. [2023-12-02 21:55:23,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 21:55:23,570 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:23,570 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:23,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:23,571 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:23,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 21:55:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:25,080 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:25,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:25,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:55:25,439 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:25,634 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 21:55:25,655 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 21:55:36,479 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 21:55:36,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:36,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5187 states to 3655 states and 5187 transitions. [2023-12-02 21:55:36,529 INFO L276 IsEmpty]: Start isEmpty. Operand 3655 states and 5187 transitions. [2023-12-02 21:55:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 21:55:36,530 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:36,530 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:36,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:36,531 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:36,531 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 21:55:38,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:38,165 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:38,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:38,527 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:55:38,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:38,719 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 21:55:38,741 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 21:55:39,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:39,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5188 states to 3656 states and 5188 transitions. [2023-12-02 21:55:39,622 INFO L276 IsEmpty]: Start isEmpty. Operand 3656 states and 5188 transitions. [2023-12-02 21:55:39,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 21:55:39,623 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:39,623 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:39,623 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:39,624 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:39,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 21:55:41,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:41,369 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:41,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:41,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:55:41,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:41,965 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 21:55:41,989 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 21:55:42,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:42,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5189 states to 3657 states and 5189 transitions. [2023-12-02 21:55:42,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3657 states and 5189 transitions. [2023-12-02 21:55:42,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 21:55:42,920 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:42,920 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:42,920 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:42,921 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:42,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 21:55:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:44,606 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:44,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:44,999 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:55:45,000 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:45,303 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 21:55:45,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 21:55:56,435 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 21:55:56,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:55:56,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5190 states to 3658 states and 5190 transitions. [2023-12-02 21:55:56,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3658 states and 5190 transitions. [2023-12-02 21:55:56,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 21:55:56,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:55:56,493 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:55:56,493 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:55:56,494 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:55:56,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 21:55:58,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:58,155 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:55:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:55:58,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:55:58,506 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:55:58,740 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 21:55:58,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Ended with exit code 0 [2023-12-02 21:56:09,905 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 21:56:09,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:09,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5191 states to 3659 states and 5191 transitions. [2023-12-02 21:56:09,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3659 states and 5191 transitions. [2023-12-02 21:56:09,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 21:56:09,961 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:09,961 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:09,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:09,962 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:09,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 21:56:11,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:11,669 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:12,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:12,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:56:12,075 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:12,325 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 21:56:12,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 21:56:13,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:13,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5192 states to 3660 states and 5192 transitions. [2023-12-02 21:56:13,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3660 states and 5192 transitions. [2023-12-02 21:56:13,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 21:56:13,545 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:13,545 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:13,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:13,546 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:13,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 21:56:15,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:15,414 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:15,839 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:56:15,841 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:16,150 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 21:56:16,180 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 21:56:17,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:17,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5193 states to 3661 states and 5193 transitions. [2023-12-02 21:56:17,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5193 transitions. [2023-12-02 21:56:17,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 21:56:17,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:17,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:17,566 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:17,566 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:17,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 21:56:19,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:19,532 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:19,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:56:19,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:20,263 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 21:56:20,291 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 21:56:31,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.91s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:56:31,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:31,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5194 states to 3662 states and 5194 transitions. [2023-12-02 21:56:31,481 INFO L276 IsEmpty]: Start isEmpty. Operand 3662 states and 5194 transitions. [2023-12-02 21:56:31,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 21:56:31,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:31,482 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:31,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:31,483 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:31,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 21:56:33,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:33,432 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:33,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:33,837 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:56:33,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:34,142 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 21:56:34,171 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Forceful destruction successful, exit code 0 [2023-12-02 21:56:45,414 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 21:56:45,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:45,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5195 states to 3663 states and 5195 transitions. [2023-12-02 21:56:45,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3663 states and 5195 transitions. [2023-12-02 21:56:45,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 21:56:45,493 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:45,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:45,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:45,494 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:45,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 21:56:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:47,525 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:47,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:47,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:56:47,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:48,312 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 21:56:48,341 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 21:56:49,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5196 states to 3664 states and 5196 transitions. [2023-12-02 21:56:49,520 INFO L276 IsEmpty]: Start isEmpty. Operand 3664 states and 5196 transitions. [2023-12-02 21:56:49,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 21:56:49,520 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:49,520 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:49,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:49,521 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:49,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 21:56:51,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:51,533 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:51,939 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:56:51,941 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:52,315 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 21:56:52,348 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Forceful destruction successful, exit code 0 [2023-12-02 21:56:53,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:56:53,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5197 states to 3665 states and 5197 transitions. [2023-12-02 21:56:53,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3665 states and 5197 transitions. [2023-12-02 21:56:53,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 21:56:53,880 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:56:53,880 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:56:53,880 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:56:53,881 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:56:53,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 21:56:56,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:56,071 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:56:56,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:56:56,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:56:56,487 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:56:56,801 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 21:56:56,832 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 21:57:08,339 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 21:57:08,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:08,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5198 states to 3666 states and 5198 transitions. [2023-12-02 21:57:08,393 INFO L276 IsEmpty]: Start isEmpty. Operand 3666 states and 5198 transitions. [2023-12-02 21:57:08,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 21:57:08,394 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:08,394 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:08,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:08,395 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:08,395 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 21:57:10,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:10,656 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:11,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:11,074 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:57:11,076 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:11,461 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 21:57:11,496 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 21:57:23,167 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 21:57:23,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:23,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5199 states to 3667 states and 5199 transitions. [2023-12-02 21:57:23,221 INFO L276 IsEmpty]: Start isEmpty. Operand 3667 states and 5199 transitions. [2023-12-02 21:57:23,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 21:57:23,221 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:23,222 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:23,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:23,222 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:23,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 21:57:25,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:25,233 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:25,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:25,668 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:57:25,670 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:26,083 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 21:57:26,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 21:57:27,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:27,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5200 states to 3668 states and 5200 transitions. [2023-12-02 21:57:27,937 INFO L276 IsEmpty]: Start isEmpty. Operand 3668 states and 5200 transitions. [2023-12-02 21:57:27,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 21:57:27,937 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:27,937 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:27,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:27,938 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:27,939 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 21:57:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:30,381 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:30,813 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:57:30,815 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:31,268 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 21:57:31,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 21:57:33,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:33,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5201 states to 3669 states and 5201 transitions. [2023-12-02 21:57:33,094 INFO L276 IsEmpty]: Start isEmpty. Operand 3669 states and 5201 transitions. [2023-12-02 21:57:33,095 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 21:57:33,095 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:33,095 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:33,095 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:33,096 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:33,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 21:57:35,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:35,696 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:36,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:36,120 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:57:36,122 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:36,510 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 21:57:36,548 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 21:57:48,265 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 21:57:48,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:57:48,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5202 states to 3670 states and 5202 transitions. [2023-12-02 21:57:48,320 INFO L276 IsEmpty]: Start isEmpty. Operand 3670 states and 5202 transitions. [2023-12-02 21:57:48,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 21:57:48,321 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:57:48,321 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:57:48,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:57:48,322 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:57:48,323 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 21:57:50,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:50,707 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:57:51,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:57:51,135 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:57:51,137 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:57:51,616 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 21:57:51,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Forceful destruction successful, exit code 0 [2023-12-02 21:58:03,667 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 21:58:03,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:03,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5203 states to 3671 states and 5203 transitions. [2023-12-02 21:58:03,722 INFO L276 IsEmpty]: Start isEmpty. Operand 3671 states and 5203 transitions. [2023-12-02 21:58:03,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 21:58:03,722 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:03,722 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:03,722 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:03,723 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:03,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 21:58:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:06,184 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:06,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:58:06,614 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:07,042 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 21:58:07,080 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 21:58:09,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5204 states to 3672 states and 5204 transitions. [2023-12-02 21:58:09,025 INFO L276 IsEmpty]: Start isEmpty. Operand 3672 states and 5204 transitions. [2023-12-02 21:58:09,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 21:58:09,026 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:09,026 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:09,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:09,027 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:09,028 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 21:58:11,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:11,509 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:11,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:11,972 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:58:11,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:12,448 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 21:58:12,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 21:58:14,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:14,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5205 states to 3673 states and 5205 transitions. [2023-12-02 21:58:14,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3673 states and 5205 transitions. [2023-12-02 21:58:14,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 21:58:14,624 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:14,624 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:14,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:14,625 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:14,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 21:58:17,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:17,359 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:17,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:58:17,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:18,341 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 21:58:18,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 21:58:30,448 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 21:58:30,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5206 states to 3674 states and 5206 transitions. [2023-12-02 21:58:30,517 INFO L276 IsEmpty]: Start isEmpty. Operand 3674 states and 5206 transitions. [2023-12-02 21:58:30,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 21:58:30,517 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:30,517 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:30,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:30,518 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:30,519 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 21:58:33,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:33,162 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:33,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:33,597 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:58:33,599 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:34,119 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 21:58:34,146 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Forceful destruction successful, exit code 0 [2023-12-02 21:58:46,395 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 21:58:46,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:46,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5207 states to 3675 states and 5207 transitions. [2023-12-02 21:58:46,467 INFO L276 IsEmpty]: Start isEmpty. Operand 3675 states and 5207 transitions. [2023-12-02 21:58:46,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 21:58:46,467 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:46,467 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:46,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:46,468 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:46,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 21:58:49,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:49,250 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:49,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:49,734 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:58:49,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:50,247 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 21:58:50,274 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 21:58:52,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:52,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5208 states to 3676 states and 5208 transitions. [2023-12-02 21:58:52,536 INFO L276 IsEmpty]: Start isEmpty. Operand 3676 states and 5208 transitions. [2023-12-02 21:58:52,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 21:58:52,537 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:52,537 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:52,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:52,538 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:52,539 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 21:58:55,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:55,491 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:58:55,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:58:56,018 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:58:56,020 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:58:56,537 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 21:58:56,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 21:58:58,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:58:58,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5209 states to 3677 states and 5209 transitions. [2023-12-02 21:58:58,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3677 states and 5209 transitions. [2023-12-02 21:58:58,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 21:58:58,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:58:58,965 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:58:58,965 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:58:58,966 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:58:58,967 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 21:59:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:01,964 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:02,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:02,439 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:59:02,442 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:03,026 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 21:59:03,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 21:59:11,878 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.39s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:59:11,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:11,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 3678 states and 5210 transitions. [2023-12-02 21:59:11,944 INFO L276 IsEmpty]: Start isEmpty. Operand 3678 states and 5210 transitions. [2023-12-02 21:59:11,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 21:59:11,945 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:11,945 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:11,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:11,946 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:11,947 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 21:59:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:15,151 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:15,623 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:59:15,625 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:16,231 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 21:59:16,259 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 21:59:27,844 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.01s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:59:27,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:27,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5211 states to 3679 states and 5211 transitions. [2023-12-02 21:59:27,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3679 states and 5211 transitions. [2023-12-02 21:59:27,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 21:59:27,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:27,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:27,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:27,915 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:27,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 21:59:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:30,991 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:31,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:31,453 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:59:31,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:32,061 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 21:59:32,090 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 21:59:34,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:34,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 3680 states and 5212 transitions. [2023-12-02 21:59:34,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3680 states and 5212 transitions. [2023-12-02 21:59:34,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 21:59:34,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:34,700 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:34,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:34,701 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:34,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 21:59:37,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:37,725 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:38,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:38,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:59:38,218 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:38,784 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 21:59:38,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 21:59:41,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:41,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5213 states to 3681 states and 5213 transitions. [2023-12-02 21:59:41,561 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 5213 transitions. [2023-12-02 21:59:41,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 21:59:41,562 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:41,562 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:41,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:41,563 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:41,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 21:59:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:44,851 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:59:45,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:59:45,346 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:59:45,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:59:46,008 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 21:59:46,039 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 21:59:58,870 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 21:59:58,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:59:58,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5214 states to 3682 states and 5214 transitions. [2023-12-02 21:59:58,941 INFO L276 IsEmpty]: Start isEmpty. Operand 3682 states and 5214 transitions. [2023-12-02 21:59:58,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 21:59:58,941 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:59:58,941 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:59:58,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:59:58,942 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:59:58,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 22:00:02,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:02,248 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:02,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:02,743 INFO L262 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 22:00:02,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:03,352 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 22:00:03,384 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 22:00:16,341 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 22:00:16,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:16,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5215 states to 3683 states and 5215 transitions. [2023-12-02 22:00:16,405 INFO L276 IsEmpty]: Start isEmpty. Operand 3683 states and 5215 transitions. [2023-12-02 22:00:16,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 22:00:16,405 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:16,405 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:16,405 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:16,406 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:16,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 22:00:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:20,033 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:20,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:20,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 877 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 22:00:20,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:21,213 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 22:00:21,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Forceful destruction successful, exit code 0 [2023-12-02 22:00:24,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5216 states to 3684 states and 5216 transitions. [2023-12-02 22:00:24,212 INFO L276 IsEmpty]: Start isEmpty. Operand 3684 states and 5216 transitions. [2023-12-02 22:00:24,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 22:00:24,213 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:24,213 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:24,214 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:24,215 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 22:00:27,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:27,587 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:28,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:28,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 888 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 22:00:28,189 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:28,880 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 22:00:28,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Ended with exit code 0 [2023-12-02 22:00:32,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:32,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5217 states to 3685 states and 5217 transitions. [2023-12-02 22:00:32,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3685 states and 5217 transitions. [2023-12-02 22:00:32,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 22:00:32,048 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:32,048 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:32,048 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:32,049 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:32,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 22:00:35,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:35,429 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:35,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:35,960 INFO L262 TraceCheckSpWp]: Trace formula consists of 899 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:00:35,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:36,630 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 2 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:00:36,664 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 22:00:49,867 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 22:00:49,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:00:49,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5218 states to 3686 states and 5218 transitions. [2023-12-02 22:00:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 5218 transitions. [2023-12-02 22:00:49,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 22:00:49,934 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:00:49,934 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:00:49,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:00:49,935 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:00:49,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 22:00:53,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:53,717 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:00:54,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:00:54,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 910 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 22:00:54,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:00:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 2 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 22:00:55,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Forceful destruction successful, exit code 0 [2023-12-02 22:01:08,289 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 22:01:08,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:01:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5219 states to 3687 states and 5219 transitions. [2023-12-02 22:01:08,354 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5219 transitions. [2023-12-02 22:01:08,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 22:01:08,354 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:01:08,354 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:01:08,354 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:01:08,355 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:01:08,356 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 22:01:11,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:01:11,941 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:01:12,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:01:12,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 22:01:12,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:01:13,224 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 2 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 22:01:13,262 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-02 22:01:16,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:01:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5220 states to 3688 states and 5220 transitions. [2023-12-02 22:01:16,633 INFO L276 IsEmpty]: Start isEmpty. Operand 3688 states and 5220 transitions. [2023-12-02 22:01:16,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 22:01:16,634 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:01:16,634 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:01:16,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:01:16,635 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:01:16,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eaba6578-730d-4136-8e6d-1d7b19252c88/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process