./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:16:14,383 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:16:14,445 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 21:16:14,449 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 21:16:14,450 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 21:16:14,470 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:16:14,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:16:14,472 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:16:14,472 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:16:14,473 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:16:14,473 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:16:14,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:16:14,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:16:14,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:16:14,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:16:14,476 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:16:14,476 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:16:14,477 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:16:14,477 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:16:14,477 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:16:14,478 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:16:14,479 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:16:14,479 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:16:14,480 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:16:14,480 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:16:14,481 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:16:14,481 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:16:14,482 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:16:14,482 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:16:14,483 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:16:14,483 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 21:16:14,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 21:16:14,484 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_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2023-12-02 21:16:14,717 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:16:14,745 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:16:14,748 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:16:14,749 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:16:14,749 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:16:14,751 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-12-02 21:16:17,470 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:16:17,727 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:16:17,728 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-12-02 21:16:17,745 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data/799dc5512/ad6c96f487924349a818cd9e3da62518/FLAGd64af4abc [2023-12-02 21:16:17,758 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data/799dc5512/ad6c96f487924349a818cd9e3da62518 [2023-12-02 21:16:17,760 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:16:17,761 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:16:17,763 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:16:17,763 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:16:17,766 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:16:17,767 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:16:17" (1/1) ... [2023-12-02 21:16:17,768 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d629581 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:17, skipping insertion in model container [2023-12-02 21:16:17,769 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:16:17" (1/1) ... [2023-12-02 21:16:17,841 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:16:18,269 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:16:18,280 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:16:18,374 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:16:18,432 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:16:18,450 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:16:18,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18 WrapperNode [2023-12-02 21:16:18,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:16:18,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:16:18,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:16:18,452 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:16:18,459 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,489 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,551 INFO L138 Inliner]: procedures = 177, calls = 338, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1572 [2023-12-02 21:16:18,552 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:16:18,552 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:16:18,553 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:16:18,553 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:16:18,563 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,576 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,576 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,627 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,643 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,649 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,657 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:16:18,669 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:16:18,670 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:16:18,670 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:16:18,670 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:16:18" (1/1) ... [2023-12-02 21:16:18,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:16:18,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:16:18,702 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:16:18,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:16:18,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 21:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 21:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:16:18,736 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:16:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:16:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:16:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 21:16:18,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:16:18,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:16:18,950 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:16:18,952 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:16:20,392 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:16:21,823 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:16:21,823 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-02 21:16:21,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:16:21 BoogieIcfgContainer [2023-12-02 21:16:21,825 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:16:21,826 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:16:21,826 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:16:21,834 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:16:21,835 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:16:21" (1/1) ... [2023-12-02 21:16:21,842 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:16:21,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:21,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 163 states and 271 transitions. [2023-12-02 21:16:21,894 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 271 transitions. [2023-12-02 21:16:21,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:16:21,896 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:21,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:21,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:22,041 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 21:16:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:22,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 163 states and 269 transitions. [2023-12-02 21:16:22,072 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 269 transitions. [2023-12-02 21:16:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:16:22,073 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:22,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:22,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:22,235 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 21:16:22,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:22,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 165 states and 272 transitions. [2023-12-02 21:16:22,275 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 272 transitions. [2023-12-02 21:16:22,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 21:16:22,276 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:22,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:22,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:22,390 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:16:22,396 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:22,403 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 21:16:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:22,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 165 states and 270 transitions. [2023-12-02 21:16:22,411 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 270 transitions. [2023-12-02 21:16:22,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 21:16:22,412 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:22,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:22,525 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:16:22,528 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:22,531 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 21:16:22,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:22,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 165 states and 266 transitions. [2023-12-02 21:16:22,539 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 266 transitions. [2023-12-02 21:16:22,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:16:22,540 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:22,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:22,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:22,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:16:22,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:22,654 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 21:16:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:22,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 165 states and 260 transitions. [2023-12-02 21:16:22,661 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 260 transitions. [2023-12-02 21:16:22,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 21:16:22,663 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:22,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:22,893 INFO L262 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:16:22,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:22,901 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 21:16:32,928 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:16:33,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:16:33,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 165 states and 254 transitions. [2023-12-02 21:16:33,152 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 254 transitions. [2023-12-02 21:16:33,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 21:16:33,154 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:16:33,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:16:33,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:16:33,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:16:33,402 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:16:33,489 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:16:43,654 WARN L539 Checker$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 21:16:53,702 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:17:04,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.34s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:17:15,105 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:17:15,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:15,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 178 states and 269 transitions. [2023-12-02 21:17:15,141 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 269 transitions. [2023-12-02 21:17:15,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 21:17:15,143 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:15,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:17:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:15,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:17:15,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:15,373 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 21:17:15,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:15,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 178 states and 267 transitions. [2023-12-02 21:17:15,382 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 267 transitions. [2023-12-02 21:17:15,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:17:15,383 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:15,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:17:15,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:15,582 INFO L262 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:17:15,585 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:15,588 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 21:17:15,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:15,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 178 states and 265 transitions. [2023-12-02 21:17:15,600 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2023-12-02 21:17:15,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:17:15,601 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:15,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:17:15,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:15,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:17:15,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:15,833 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 21:17:25,843 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 21:17:25,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:17:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 178 states and 263 transitions. [2023-12-02 21:17:25,878 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 263 transitions. [2023-12-02 21:17:25,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 21:17:25,878 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:17:25,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:17:26,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:17:26,143 INFO L262 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:17:26,146 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:17:26,229 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 21:17:36,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:17:46,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:17:56,343 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:18:06,383 WARN L539 Checker$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 21:18:06,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:06,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 181 states and 265 transitions. [2023-12-02 21:18:06,422 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 265 transitions. [2023-12-02 21:18:06,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:18:06,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:06,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:18:06,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:06,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:18:06,690 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:06,785 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:18:16,893 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:18:26,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.10s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:18:37,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:18:47,065 WARN L539 Checker$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 21:18:47,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 216 states and 312 transitions. [2023-12-02 21:18:47,541 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 312 transitions. [2023-12-02 21:18:47,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:18:47,541 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:47,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:18:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:47,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:18:47,830 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:47,833 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 21:18:47,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 215 states and 307 transitions. [2023-12-02 21:18:47,843 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 307 transitions. [2023-12-02 21:18:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 21:18:47,844 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:47,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:18:48,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:48,089 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:18:48,092 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:48,124 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 11 treesize of output 7 [2023-12-02 21:18:48,152 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 21:18:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:48,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 216 states and 308 transitions. [2023-12-02 21:18:48,285 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 308 transitions. [2023-12-02 21:18:48,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:18:48,285 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:48,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:18:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:48,573 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:18:48,575 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:48,578 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 21:18:48,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:48,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 216 states and 306 transitions. [2023-12-02 21:18:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2023-12-02 21:18:48,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:18:48,733 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:18:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:48,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:18:48,982 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:48,985 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 21:18:48,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:18:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 216 states and 302 transitions. [2023-12-02 21:18:48,996 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 302 transitions. [2023-12-02 21:18:48,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:18:48,996 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:18:48,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:18:49,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:18:49,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:18:49,305 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:18:49,367 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 21:18:59,379 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:19:09,407 WARN L539 Checker$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 21:19:19,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:19:29,477 WARN L539 Checker$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 21:19:29,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:29,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 201 states and 283 transitions. [2023-12-02 21:19:29,511 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 283 transitions. [2023-12-02 21:19:29,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 21:19:29,512 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:29,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:19:29,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:29,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:19:29,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:29,825 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 21:19:29,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:29,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 201 states and 282 transitions. [2023-12-02 21:19:29,847 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2023-12-02 21:19:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 21:19:29,848 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:19:30,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:30,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:19:30,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:30,260 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 21:19:30,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:30,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 209 states and 292 transitions. [2023-12-02 21:19:30,542 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 292 transitions. [2023-12-02 21:19:30,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 21:19:30,543 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:30,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:19:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:30,748 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:19:30,749 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:30,751 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 21:19:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:30,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 209 states and 290 transitions. [2023-12-02 21:19:30,759 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2023-12-02 21:19:30,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 21:19:30,760 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:30,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:19:31,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:31,070 INFO L262 TraceCheckSpWp]: Trace formula consists of 659 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:19:31,072 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:31,128 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 21:19:31,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:31,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 210 states and 292 transitions. [2023-12-02 21:19:31,668 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 292 transitions. [2023-12-02 21:19:31,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 21:19:31,669 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:31,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:19:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:31,906 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:19:31,908 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:31,910 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 21:19:41,932 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:19:41,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:19:41,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 210 states and 290 transitions. [2023-12-02 21:19:41,965 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 290 transitions. [2023-12-02 21:19:41,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 21:19:41,966 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:19:41,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:19:42,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:19:42,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:19:42,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:19:42,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:19:52,298 WARN L539 Checker$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 21:20:02,352 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.05s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:20:12,406 WARN L539 Checker$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 21:20:22,429 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 21:20:22,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:22,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 221 states and 303 transitions. [2023-12-02 21:20:22,461 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 303 transitions. [2023-12-02 21:20:22,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 21:20:22,462 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:22,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:20:22,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:22,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:20:22,789 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:22,813 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 21:20:22,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:22,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 221 states and 301 transitions. [2023-12-02 21:20:22,824 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 301 transitions. [2023-12-02 21:20:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 21:20:22,824 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:22,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:20:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:23,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:20:23,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:23,220 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 21:20:23,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:23,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 224 states and 303 transitions. [2023-12-02 21:20:23,556 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 303 transitions. [2023-12-02 21:20:23,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:20:23,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:23,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:20:23,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:23,823 INFO L262 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:20:23,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:23,826 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 21:20:33,839 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 21:20:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:33,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 224 states and 301 transitions. [2023-12-02 21:20:33,868 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 301 transitions. [2023-12-02 21:20:33,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:20:33,868 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:33,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:20:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:34,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:20:34,105 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:34,107 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 21:20:34,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:20:34,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 224 states and 297 transitions. [2023-12-02 21:20:34,116 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 297 transitions. [2023-12-02 21:20:34,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:20:34,116 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:20:34,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:20:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:20:34,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:20:34,403 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:20:34,461 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 21:20:44,476 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:20:54,499 WARN L539 Checker$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 21:21:04,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 21:21:14,562 WARN L539 Checker$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 21:21:14,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:14,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 227 states and 299 transitions. [2023-12-02 21:21:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 299 transitions. [2023-12-02 21:21:14,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 21:21:14,594 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:14,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 21:21:24,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 21:21:24,842 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 21:21:24,845 INFO L158 Benchmark]: Toolchain (without parser) took 307083.37ms. Allocated memory was 172.0MB in the beginning and 266.3MB in the end (delta: 94.4MB). Free memory was 122.9MB in the beginning and 61.5MB in the end (delta: 61.4MB). Peak memory consumption was 157.1MB. Max. memory is 16.1GB. [2023-12-02 21:21:24,845 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 172.0MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 21:21:24,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 688.47ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 137.3MB in the end (delta: -14.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. [2023-12-02 21:21:24,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 100.13ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 128.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-12-02 21:21:24,846 INFO L158 Benchmark]: Boogie Preprocessor took 116.19ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 117.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 21:21:24,847 INFO L158 Benchmark]: RCFGBuilder took 3155.63ms. Allocated memory was 172.0MB in the beginning and 266.3MB in the end (delta: 94.4MB). Free memory was 117.6MB in the beginning and 177.3MB in the end (delta: -59.7MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. [2023-12-02 21:21:24,847 INFO L158 Benchmark]: CodeCheck took 303018.27ms. Allocated memory is still 266.3MB. Free memory was 177.3MB in the beginning and 61.5MB in the end (delta: 115.8MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. [2023-12-02 21:21:24,849 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 0.23ms. Allocated memory is still 172.0MB. Free memory is still 146.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 688.47ms. Allocated memory is still 172.0MB. Free memory was 122.9MB in the beginning and 137.3MB in the end (delta: -14.4MB). Peak memory consumption was 49.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 100.13ms. Allocated memory is still 172.0MB. Free memory was 137.3MB in the beginning and 128.1MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.19ms. Allocated memory is still 172.0MB. Free memory was 128.1MB in the beginning and 117.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 3155.63ms. Allocated memory was 172.0MB in the beginning and 266.3MB in the end (delta: 94.4MB). Free memory was 117.6MB in the beginning and 177.3MB in the end (delta: -59.7MB). Peak memory consumption was 109.8MB. Max. memory is 16.1GB. * CodeCheck took 303018.27ms. Allocated memory is still 266.3MB. Free memory was 177.3MB in the beginning and 61.5MB in the end (delta: 115.8MB). Peak memory consumption was 115.8MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 21:21:25,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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 d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 21:21:26,699 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 21:21:26,776 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 21:21:26,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 21:21:26,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 21:21:26,809 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 21:21:26,810 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 21:21:26,810 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 21:21:26,811 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 21:21:26,811 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 21:21:26,812 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 21:21:26,813 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 21:21:26,813 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 21:21:26,814 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 21:21:26,814 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 21:21:26,815 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 21:21:26,815 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 21:21:26,816 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 21:21:26,816 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 21:21:26,817 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 21:21:26,817 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 21:21:26,818 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 21:21:26,818 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 21:21:26,819 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 21:21:26,819 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 21:21:26,819 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 21:21:26,820 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 21:21:26,820 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:26,821 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 21:21:26,821 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 21:21:26,821 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:21:26,822 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 21:21:26,822 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 21:21:26,823 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 21:21:26,823 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:26,823 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 21:21:26,823 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 21:21:26,824 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_8cd1a1ba-859b-4797-9747-d97cd6807ce9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d11f955236406002afd026860cf5cae6834e26918579de44c447a4ac30cb678d [2023-12-02 21:21:27,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 21:21:27,137 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 21:21:27,139 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 21:21:27,140 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 21:21:27,141 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 21:21:27,142 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-12-02 21:21:29,869 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 21:21:30,169 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 21:21:30,170 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test3-2.i [2023-12-02 21:21:30,187 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data/5ebbf97d5/7894d9a29eb941d590666cafd5da9b5c/FLAG7480c41a5 [2023-12-02 21:21:30,201 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/data/5ebbf97d5/7894d9a29eb941d590666cafd5da9b5c [2023-12-02 21:21:30,203 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 21:21:30,205 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 21:21:30,206 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 21:21:30,207 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 21:21:30,210 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 21:21:30,211 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:30,212 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3850d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30, skipping insertion in model container [2023-12-02 21:21:30,212 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:30,277 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:21:30,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:21:30,754 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 21:21:30,765 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 21:21:30,841 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:21:30,845 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 21:21:30,914 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 21:21:30,960 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 21:21:30,967 INFO L206 MainTranslator]: Completed translation [2023-12-02 21:21:30,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30 WrapperNode [2023-12-02 21:21:30,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 21:21:30,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 21:21:30,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 21:21:30,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 21:21:30,976 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,074 INFO L138 Inliner]: procedures = 180, calls = 338, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 1238 [2023-12-02 21:21:31,074 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 21:21:31,075 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 21:21:31,075 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 21:21:31,076 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 21:21:31,085 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,085 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,098 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,147 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,159 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,171 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 21:21:31,182 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 21:21:31,182 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 21:21:31,182 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 21:21:31,183 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:21:30" (1/1) ... [2023-12-02 21:21:31,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 21:21:31,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 21:21:31,219 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 21:21:31,229 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 21:21:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 21:21:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 21:21:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 21:21:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 21:21:31,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 21:21:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 21:21:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 21:21:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 21:21:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 21:21:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 21:21:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 21:21:31,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 21:21:31,260 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 21:21:31,472 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 21:21:31,474 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 21:21:45,846 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 21:21:46,350 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 21:21:46,351 INFO L309 CfgBuilder]: Removed 72 assume(true) statements. [2023-12-02 21:21:46,352 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:46 BoogieIcfgContainer [2023-12-02 21:21:46,352 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 21:21:46,353 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 21:21:46,353 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 21:21:46,363 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 21:21:46,363 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:21:46" (1/1) ... [2023-12-02 21:21:46,372 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 21:21:46,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:46,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 163 states and 271 transitions. [2023-12-02 21:21:46,429 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 271 transitions. [2023-12-02 21:21:46,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-02 21:21:46,432 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:46,432 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:46,433 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:46,434 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:46,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 21:21:46,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:46,769 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:46,843 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:21:46,849 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:46,866 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 21:21:46,870 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:21:46,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 21:21:46,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:46,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 163 states and 269 transitions. [2023-12-02 21:21:46,914 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 269 transitions. [2023-12-02 21:21:46,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-12-02 21:21:46,915 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:46,916 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:46,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:46,917 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:46,918 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 21:21:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:47,258 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:47,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:47,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 21:21:47,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:47,369 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:21:47,370 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:21:47,371 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:21:47,379 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 21:21:47,478 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:21:47,479 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 21:21:47,499 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 21:21:47,502 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 21:21:48,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:48,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 165 states and 272 transitions. [2023-12-02 21:21:48,343 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 272 transitions. [2023-12-02 21:21:48,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-12-02 21:21:48,344 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:48,345 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:48,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:48,346 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:48,349 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 21:21:48,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:48,664 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:48,818 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:21:48,820 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:48,823 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 21:21:48,827 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 21:21:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 165 states and 270 transitions. [2023-12-02 21:21:48,837 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 270 transitions. [2023-12-02 21:21:48,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-02 21:21:48,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:48,840 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:48,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:48,841 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:48,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 21:21:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:49,173 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:49,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:49,321 INFO L262 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:21:49,323 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:49,326 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 21:21:49,332 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2023-12-02 21:21:49,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:49,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 165 states and 266 transitions. [2023-12-02 21:21:49,341 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 266 transitions. [2023-12-02 21:21:49,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2023-12-02 21:21:49,342 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:49,343 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:49,343 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:49,344 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:49,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 21:21:49,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:49,735 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:49,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:49,889 INFO L262 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:21:49,892 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:49,895 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 21:21:49,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 21:21:49,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:49,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 165 states and 260 transitions. [2023-12-02 21:21:49,912 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 260 transitions. [2023-12-02 21:21:49,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 21:21:49,914 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:49,914 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:49,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:49,915 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:49,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 21:21:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:50,306 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:50,450 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:21:50,453 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:50,456 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 21:21:50,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 21:21:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 165 states and 252 transitions. [2023-12-02 21:21:51,243 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 252 transitions. [2023-12-02 21:21:51,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 21:21:51,244 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:51,244 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:51,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:51,245 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:51,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 21:21:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:51,688 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:51,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:51,963 INFO L262 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:21:51,967 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:52,101 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 21:21:52,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 21:21:52,107 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 21:21:53,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:53,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 178 states and 267 transitions. [2023-12-02 21:21:53,129 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 267 transitions. [2023-12-02 21:21:53,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 21:21:53,131 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:53,131 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:53,131 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:53,132 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:53,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 21:21:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:53,578 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:53,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:53,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:21:53,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:53,811 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 21:21:53,815 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 21:21:53,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 178 states and 265 transitions. [2023-12-02 21:21:53,838 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 265 transitions. [2023-12-02 21:21:53,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 21:21:53,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:53,839 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:53,839 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:53,840 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:53,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 21:21:54,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:54,286 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:54,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:54,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 345 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:21:54,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:54,548 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 21:21:54,553 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 21:21:54,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:54,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 178 states and 263 transitions. [2023-12-02 21:21:54,564 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 263 transitions. [2023-12-02 21:21:54,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 21:21:54,565 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:54,565 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:54,565 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:54,566 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:54,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 21:21:55,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:55,062 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:55,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:55,375 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:21:55,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:55,517 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 21:21:55,522 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 21:21:55,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:21:55,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 181 states and 265 transitions. [2023-12-02 21:21:55,542 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 265 transitions. [2023-12-02 21:21:55,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:21:55,542 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:21:55,542 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:21:55,543 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:21:55,543 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:21:55,544 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 21:21:56,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:56,162 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:21:56,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:21:56,493 INFO L262 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:21:56,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:21:56,705 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 21:21:56,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 21:22:07,247 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.50s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:22:17,277 WARN L539 Checker$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 21:22:27,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:22:35,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:22:37,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:22:40,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:40,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 216 states and 312 transitions. [2023-12-02 21:22:40,488 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 312 transitions. [2023-12-02 21:22:40,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 21:22:40,488 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:40,488 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:40,488 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:40,489 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:40,491 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 21:22:41,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:41,111 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:41,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:41,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:22:41,440 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:41,442 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 21:22:41,449 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 21:22:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:41,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 215 states and 307 transitions. [2023-12-02 21:22:41,460 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 307 transitions. [2023-12-02 21:22:41,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 21:22:41,460 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:41,460 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:41,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:41,461 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:41,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 21:22:42,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:42,176 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:42,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:42,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:22:42,492 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:42,597 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 21:22:42,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 21:22:43,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:43,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 215 states and 305 transitions. [2023-12-02 21:22:43,056 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 305 transitions. [2023-12-02 21:22:43,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 21:22:43,057 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:43,057 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:43,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:43,058 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:43,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 21:22:43,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:43,814 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:44,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:44,133 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:22:44,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:44,251 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 21:22:44,259 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Forceful destruction successful, exit code 0 [2023-12-02 21:22:54,757 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 21:22:54,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:54,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 216 states and 306 transitions. [2023-12-02 21:22:54,802 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 306 transitions. [2023-12-02 21:22:54,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:22:54,802 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:54,802 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:54,802 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:54,803 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:54,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 21:22:55,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:55,772 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:56,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:56,118 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:22:56,121 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:56,129 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:22:56,129 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:22:56,130 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 21:22:56,132 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 21:22:56,167 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 21:22:56,168 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 21:22:56,278 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 21:22:56,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 21:22:56,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:56,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 218 states and 309 transitions. [2023-12-02 21:22:56,992 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 309 transitions. [2023-12-02 21:22:56,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 21:22:56,993 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:56,993 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:56,993 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:56,994 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:56,996 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 21:22:57,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:57,853 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:58,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:58,229 INFO L262 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:22:58,232 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:58,372 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 21:22:58,382 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 21:22:58,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:58,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 203 states and 290 transitions. [2023-12-02 21:22:58,401 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 290 transitions. [2023-12-02 21:22:58,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 21:22:58,401 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:58,402 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:58,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:58,403 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:58,404 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 21:22:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:59,316 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:22:59,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:22:59,605 INFO L262 TraceCheckSpWp]: Trace formula consists of 469 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:22:59,607 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:22:59,610 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 21:22:59,621 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-02 21:22:59,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:22:59,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 203 states and 286 transitions. [2023-12-02 21:22:59,633 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 286 transitions. [2023-12-02 21:22:59,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 21:22:59,633 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:22:59,633 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:22:59,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:22:59,634 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:22:59,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 21:23:00,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:00,485 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:00,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:00,808 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:23:00,810 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:00,811 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 21:23:00,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 21:23:10,845 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 21:23:10,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:10,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 203 states and 284 transitions. [2023-12-02 21:23:10,884 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 284 transitions. [2023-12-02 21:23:10,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 21:23:10,885 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:10,885 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:10,885 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:10,886 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:10,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 21:23:11,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:11,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:12,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:12,391 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:23:12,393 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:12,395 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 21:23:12,409 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 21:23:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 203 states and 283 transitions. [2023-12-02 21:23:12,699 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 283 transitions. [2023-12-02 21:23:12,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 21:23:12,700 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:12,700 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:12,700 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:12,701 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:12,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 21:23:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:13,661 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:13,954 INFO L262 TraceCheckSpWp]: Trace formula consists of 475 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:23:13,956 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:13,958 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 21:23:13,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 21:23:13,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 203 states and 281 transitions. [2023-12-02 21:23:13,987 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 281 transitions. [2023-12-02 21:23:13,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 21:23:13,987 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:13,988 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:13,988 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:13,989 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:13,990 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 21:23:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:15,220 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:15,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:15,672 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:23:15,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:15,841 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 21:23:15,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 21:23:26,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:23:36,351 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 21:23:46,380 WARN L539 Checker$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 21:23:56,399 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 21:23:56,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:23:56,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 211 states and 291 transitions. [2023-12-02 21:23:56,433 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 291 transitions. [2023-12-02 21:23:56,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 21:23:56,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:23:56,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:23:56,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:23:56,435 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:23:56,436 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 21:23:57,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:57,710 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:23:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:23:58,153 INFO L262 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:23:58,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:23:58,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-12-02 21:23:58,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 21:24:08,380 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 21:24:18,401 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 21:24:18,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:18,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 212 states and 293 transitions. [2023-12-02 21:24:18,446 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 293 transitions. [2023-12-02 21:24:18,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 21:24:18,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:18,447 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:18,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:18,448 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:18,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 21:24:19,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:19,522 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:19,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:24:19,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:19,820 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 21:24:19,837 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Forceful destruction successful, exit code 0 [2023-12-02 21:24:19,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:19,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 212 states and 291 transitions. [2023-12-02 21:24:19,874 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 291 transitions. [2023-12-02 21:24:19,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 21:24:19,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:19,875 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:19,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:19,876 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:19,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 21:24:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:20,889 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:21,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:21,225 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:24:21,227 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:21,400 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 21:24:21,418 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 21:24:21,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:21,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 223 states and 304 transitions. [2023-12-02 21:24:21,491 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 304 transitions. [2023-12-02 21:24:21,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 21:24:21,491 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:21,492 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:21,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:21,493 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:21,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 21:24:22,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:22,858 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:23,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:23,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:24:23,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:23,401 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-12-02 21:24:23,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Ended with exit code 0 [2023-12-02 21:24:23,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:23,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 223 states and 302 transitions. [2023-12-02 21:24:23,441 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 302 transitions. [2023-12-02 21:24:23,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 21:24:23,442 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:23,442 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:23,442 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:23,444 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:23,445 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 21:24:25,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:25,036 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:25,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:25,544 INFO L262 TraceCheckSpWp]: Trace formula consists of 728 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:24:25,546 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:25,759 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-12-02 21:24:25,779 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 21:24:35,809 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 21:24:45,831 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 21:24:45,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:45,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 226 states and 304 transitions. [2023-12-02 21:24:45,875 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 304 transitions. [2023-12-02 21:24:45,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:24:45,875 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:45,875 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:45,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:45,876 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:45,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 21:24:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:47,030 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:47,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:47,398 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:24:47,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:47,403 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 21:24:47,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Forceful destruction successful, exit code 0 [2023-12-02 21:24:47,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:47,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 226 states and 302 transitions. [2023-12-02 21:24:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2023-12-02 21:24:47,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 21:24:47,437 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:47,437 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:47,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:47,439 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:47,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 21:24:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:48,890 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:49,243 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 21:24:49,245 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:49,247 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 21:24:49,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 21:24:49,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:49,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 226 states and 298 transitions. [2023-12-02 21:24:49,283 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 298 transitions. [2023-12-02 21:24:49,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 21:24:49,284 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:49,284 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:49,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:49,285 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:49,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 21:24:50,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:50,846 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:51,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:51,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 21:24:51,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:51,442 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 21:24:51,466 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Forceful destruction successful, exit code 0 [2023-12-02 21:24:51,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:51,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 229 states and 300 transitions. [2023-12-02 21:24:51,482 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 300 transitions. [2023-12-02 21:24:51,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 21:24:51,482 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:51,482 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:51,482 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:51,483 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:51,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 21:24:53,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:53,094 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:53,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 525 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:24:53,468 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:53,631 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 21:24:53,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 21:24:54,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:24:54,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 230 states and 298 transitions. [2023-12-02 21:24:54,446 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 298 transitions. [2023-12-02 21:24:54,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 21:24:54,446 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:24:54,447 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:24:54,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:24:54,448 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:24:54,452 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 21:24:56,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:56,134 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:24:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:24:56,508 INFO L262 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 21:24:56,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:24:56,697 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 21:24:56,722 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 21:25:07,470 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 21:25:07,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:25:07,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 231 states and 299 transitions. [2023-12-02 21:25:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 299 transitions. [2023-12-02 21:25:07,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 21:25:07,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:25:07,528 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:25:07,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:25:07,529 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:25:07,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 21:25:09,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:09,410 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:25:09,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:09,778 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:25:09,780 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:25:09,999 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 21:25:10,027 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-12-02 21:25:20,942 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 21:25:20,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:25:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 232 states and 300 transitions. [2023-12-02 21:25:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 300 transitions. [2023-12-02 21:25:20,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 21:25:20,997 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:25:20,997 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:25:20,997 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:25:20,998 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:25:20,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 21:25:22,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:22,910 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:25:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:23,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:25:23,303 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:25:23,514 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 21:25:23,542 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 21:25:34,497 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 21:25:34,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:25:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 233 states and 301 transitions. [2023-12-02 21:25:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 301 transitions. [2023-12-02 21:25:34,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 21:25:34,556 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:25:34,556 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:25:34,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:25:34,557 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:25:34,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 21:25:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:36,524 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:25:36,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:36,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 21:25:36,934 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:25:37,162 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 21:25:37,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Ended with exit code 0 [2023-12-02 21:25:38,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:25:38,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 234 states and 302 transitions. [2023-12-02 21:25:38,202 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 302 transitions. [2023-12-02 21:25:38,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 21:25:38,202 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:25:38,202 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:25:38,203 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:25:38,203 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:25:38,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 21:25:40,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:40,206 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:25:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:40,625 INFO L262 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 21:25:40,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:25:40,866 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 21:25:40,898 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 21:25:41,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:25:41,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 235 states and 303 transitions. [2023-12-02 21:25:41,923 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 303 transitions. [2023-12-02 21:25:41,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 21:25:41,924 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:25:41,924 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:25:41,924 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:25:41,925 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:25:41,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 21:25:43,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:43,866 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:25:44,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:44,295 INFO L262 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:25:44,297 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:25:44,556 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 21:25:44,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 21:25:55,639 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 21:25:55,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:25:55,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 236 states and 304 transitions. [2023-12-02 21:25:55,694 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states and 304 transitions. [2023-12-02 21:25:55,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 21:25:55,695 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:25:55,695 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:25:55,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:25:55,696 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:25:55,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 21:25:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:57,685 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:25:58,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:25:58,131 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:25:58,134 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:25:58,439 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 21:25:58,472 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 21:26:09,561 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 21:26:09,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:09,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 237 states and 305 transitions. [2023-12-02 21:26:09,609 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 305 transitions. [2023-12-02 21:26:09,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 21:26:09,610 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:09,610 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:26:09,610 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:26:09,611 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:26:09,611 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 21:26:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:11,957 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:26:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:12,379 INFO L262 TraceCheckSpWp]: Trace formula consists of 613 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 21:26:12,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:26:12,678 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 21:26:12,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 21:26:14,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:14,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 238 states and 306 transitions. [2023-12-02 21:26:14,007 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 306 transitions. [2023-12-02 21:26:14,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 21:26:14,007 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:14,008 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:26:14,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:26:14,009 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:26:14,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 21:26:16,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:16,373 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:26:16,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:16,821 INFO L262 TraceCheckSpWp]: Trace formula consists of 624 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 21:26:16,823 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:26:17,115 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 21:26:17,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 21:26:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 239 states and 307 transitions. [2023-12-02 21:26:18,479 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 307 transitions. [2023-12-02 21:26:18,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 21:26:18,479 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:18,479 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:26:18,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:26:18,480 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:26:18,481 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 21:26:20,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:20,679 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:26:21,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:21,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 635 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:26:21,085 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:26:21,404 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 21:26:21,443 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 21:26:32,830 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 21:26:32,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:32,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 240 states and 308 transitions. [2023-12-02 21:26:32,892 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 308 transitions. [2023-12-02 21:26:32,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 21:26:32,893 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:32,893 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:26:32,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:26:32,894 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:26:32,895 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 21:26:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:35,274 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:26:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:35,713 INFO L262 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:26:35,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:26:36,050 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 21:26:36,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 21:26:47,500 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 21:26:47,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:47,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 241 states and 309 transitions. [2023-12-02 21:26:47,551 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 309 transitions. [2023-12-02 21:26:47,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 21:26:47,551 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:47,551 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:26:47,552 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:26:47,552 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:26:47,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 21:26:50,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:50,037 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:26:50,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:50,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 657 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 21:26:50,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:26:50,820 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 21:26:50,861 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Ended with exit code 0 [2023-12-02 21:26:52,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:52,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 242 states and 310 transitions. [2023-12-02 21:26:52,359 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 310 transitions. [2023-12-02 21:26:52,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 21:26:52,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:52,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:26:52,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:26:52,361 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:26:52,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 21:26:54,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:54,851 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:26:55,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:55,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 21:26:55,284 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:26:55,656 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 21:26:55,697 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 21:26:57,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:26:57,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 243 states and 311 transitions. [2023-12-02 21:26:57,311 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 311 transitions. [2023-12-02 21:26:57,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 21:26:57,312 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:26:57,312 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:26:57,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:26:57,313 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:26:57,316 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 21:26:59,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:26:59,814 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:27:00,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:00,275 INFO L262 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:27:00,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:27:00,642 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 21:27:00,682 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 21:27:12,234 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 21:27:12,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:27:12,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 244 states and 312 transitions. [2023-12-02 21:27:12,300 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 312 transitions. [2023-12-02 21:27:12,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 21:27:12,300 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:27:12,300 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:27:12,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:27:12,301 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:27:12,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 21:27:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:15,053 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:27:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:15,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:27:15,617 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:27:16,026 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 21:27:16,070 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 21:27:27,751 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 21:27:27,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:27:27,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 245 states and 313 transitions. [2023-12-02 21:27:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 313 transitions. [2023-12-02 21:27:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 21:27:27,810 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:27:27,810 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:27:27,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:27:27,811 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:27:27,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 21:27:30,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:30,579 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:27:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:31,016 INFO L262 TraceCheckSpWp]: Trace formula consists of 701 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 21:27:31,019 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:27:31,415 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 21:27:31,441 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 21:27:33,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:27:33,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 246 states and 314 transitions. [2023-12-02 21:27:33,167 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 314 transitions. [2023-12-02 21:27:33,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 21:27:33,167 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:27:33,167 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:27:33,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:27:33,169 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:27:33,169 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 21:27:36,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:36,038 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:27:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:36,506 INFO L262 TraceCheckSpWp]: Trace formula consists of 712 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 21:27:36,508 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:27:36,954 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 21:27:36,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 21:27:38,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:27:38,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 247 states and 315 transitions. [2023-12-02 21:27:38,874 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 315 transitions. [2023-12-02 21:27:38,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 21:27:38,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:27:38,874 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:27:38,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:27:38,875 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:27:38,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 21:27:41,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:41,564 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:27:41,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:42,035 INFO L262 TraceCheckSpWp]: Trace formula consists of 723 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:27:42,037 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:27:42,503 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 21:27:42,531 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 21:27:54,467 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 21:27:54,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:27:54,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 248 states and 316 transitions. [2023-12-02 21:27:54,523 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 316 transitions. [2023-12-02 21:27:54,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 21:27:54,523 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:27:54,523 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:27:54,523 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:27:54,524 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:27:54,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 21:27:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:57,334 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:27:57,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:27:57,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:27:57,926 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:27:58,398 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 21:27:58,427 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 21:28:10,358 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 21:28:10,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:28:10,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 249 states and 317 transitions. [2023-12-02 21:28:10,419 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 317 transitions. [2023-12-02 21:28:10,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 21:28:10,419 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:28:10,420 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:28:10,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:28:10,421 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:28:10,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 21:28:13,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:13,634 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:28:14,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:14,187 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 21:28:14,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:28:14,653 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 21:28:14,683 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 21:28:16,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:28:16,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 250 states and 318 transitions. [2023-12-02 21:28:16,856 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 318 transitions. [2023-12-02 21:28:16,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 21:28:16,856 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:28:16,856 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:28:16,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:28:16,858 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:28:16,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 21:28:19,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:19,879 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:28:20,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:20,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 756 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 21:28:20,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:28:20,885 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 21:28:20,916 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 21:28:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:28:23,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 251 states and 319 transitions. [2023-12-02 21:28:23,177 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 319 transitions. [2023-12-02 21:28:23,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 21:28:23,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:28:23,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:28:23,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:28:23,178 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:28:23,179 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 21:28:26,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:26,194 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:28:26,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:26,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 767 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:28:26,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:28:27,197 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 21:28:27,230 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 21:28:39,552 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 21:28:39,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:28:39,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 252 states and 320 transitions. [2023-12-02 21:28:39,613 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 320 transitions. [2023-12-02 21:28:39,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 21:28:39,613 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:28:39,613 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:28:39,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:28:39,614 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:28:39,615 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 21:28:42,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:42,559 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:28:42,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:43,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:28:43,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:28:43,540 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 21:28:43,570 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 21:28:55,824 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 21:28:55,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:28:55,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 253 states and 321 transitions. [2023-12-02 21:28:55,883 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 321 transitions. [2023-12-02 21:28:55,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 21:28:55,883 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:28:55,883 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:28:55,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:28:55,884 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:28:55,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 21:28:58,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:58,938 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:28:59,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:28:59,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 21:28:59,394 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:28:59,896 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 21:28:59,928 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Forceful destruction successful, exit code 0 [2023-12-02 21:29:02,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:29:02,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 254 states and 322 transitions. [2023-12-02 21:29:02,246 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 322 transitions. [2023-12-02 21:29:02,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 21:29:02,246 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:29:02,246 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:29:02,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:29:02,247 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:29:02,248 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 21:29:05,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:05,341 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:29:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:05,788 INFO L262 TraceCheckSpWp]: Trace formula consists of 800 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 21:29:05,790 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:29:06,325 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 21:29:06,357 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 21:29:08,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:29:08,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 323 states to 255 states and 323 transitions. [2023-12-02 21:29:08,637 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 323 transitions. [2023-12-02 21:29:08,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 21:29:08,637 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:29:08,637 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:29:08,638 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:29:08,638 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:29:08,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 21:29:11,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:11,926 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:29:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:12,378 INFO L262 TraceCheckSpWp]: Trace formula consists of 811 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:29:12,381 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:29:12,902 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 21:29:12,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 21:29:25,294 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 21:29:25,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:29:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 256 states and 324 transitions. [2023-12-02 21:29:25,349 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 324 transitions. [2023-12-02 21:29:25,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 21:29:25,349 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:29:25,349 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:29:25,349 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:29:25,350 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:29:25,351 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 21:29:28,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:28,601 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:29:29,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:29,064 INFO L262 TraceCheckSpWp]: Trace formula consists of 822 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:29:29,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:29:29,573 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 21:29:29,604 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 21:29:42,120 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 21:29:42,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:29:42,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 257 states and 325 transitions. [2023-12-02 21:29:42,179 INFO L276 IsEmpty]: Start isEmpty. Operand 257 states and 325 transitions. [2023-12-02 21:29:42,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 21:29:42,180 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:29:42,180 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:29:42,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:29:42,181 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:29:42,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 21:29:45,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:45,575 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:29:45,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:46,038 INFO L262 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 21:29:46,040 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:29:46,613 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 21:29:46,645 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Forceful destruction successful, exit code 0 [2023-12-02 21:29:49,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:29:49,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 258 states and 326 transitions. [2023-12-02 21:29:49,124 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 326 transitions. [2023-12-02 21:29:49,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 21:29:49,124 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:29:49,124 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:29:49,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:29:49,125 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:29:49,126 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 21:29:52,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:52,635 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:29:53,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:53,123 INFO L262 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 21:29:53,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:29:53,726 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 21:29:53,759 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 21:29:56,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:29:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 327 states to 259 states and 327 transitions. [2023-12-02 21:29:56,366 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 327 transitions. [2023-12-02 21:29:56,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 21:29:56,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:29:56,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:29:56,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:29:56,367 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:29:56,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 21:29:59,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:29:59,851 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:30:00,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:30:00,361 INFO L262 TraceCheckSpWp]: Trace formula consists of 855 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 21:30:00,363 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:30:00,957 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 21:30:00,990 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 21:30:13,715 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 21:30:13,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:30:13,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 260 states and 328 transitions. [2023-12-02 21:30:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 328 transitions. [2023-12-02 21:30:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 21:30:13,777 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:30:13,777 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:30:13,777 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:30:13,778 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:30:13,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 21:30:17,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:30:17,540 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 21:30:18,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:30:18,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 866 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 21:30:18,058 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 21:30:18,689 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 2 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 21:30:18,723 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-02 21:30:31,601 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 21:30:31,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 21:30:31,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 261 states and 329 transitions. [2023-12-02 21:30:31,657 INFO L276 IsEmpty]: Start isEmpty. Operand 261 states and 329 transitions. [2023-12-02 21:30:31,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 21:30:31,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 21:30:31,657 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 21:30:31,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 21:30:31,658 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 21:30:31,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd1a1ba-859b-4797-9747-d97cd6807ce9/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 21:30:35,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 21:30:35,313 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported