./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memcleanup.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (memcleanup) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/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_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/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_07f60c22-097e-447e-a140-4a5a80ed139a/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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:57:29,987 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:57:30,050 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Default.epf [2023-12-02 22:57:30,055 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-02 22:57:30,055 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck.Interpolating solver [2023-12-02 22:57:30,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:57:30,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:57:30,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:57:30,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:57:30,081 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:57:30,081 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:57:30,082 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:57:30,082 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:57:30,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:57:30,083 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:57:30,084 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:57:30,084 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:57:30,084 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:57:30,085 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:57:30,085 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:57:30,086 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:57:30,091 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:57:30,091 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:57:30,092 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:57:30,092 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:57:30,093 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:57:30,093 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:57:30,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:57:30,094 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:57:30,094 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:57:30,094 INFO L153 SettingsManager]: * Trace refinement strategy=PENGUIN [2023-12-02 22:57:30,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-02 22:57:30,095 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_07f60c22-097e-447e-a140-4a5a80ed139a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2023-12-02 22:57:30,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:57:30,335 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:57:30,338 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:57:30,339 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:57:30,339 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:57:30,340 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2023-12-02 22:57:33,032 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:57:33,283 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:57:33,284 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2023-12-02 22:57:33,301 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data/c163982c0/f8b91b2735b84ced8f7bb5bac2faefb2/FLAGeb28eab50 [2023-12-02 22:57:33,315 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data/c163982c0/f8b91b2735b84ced8f7bb5bac2faefb2 [2023-12-02 22:57:33,318 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:57:33,319 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:57:33,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:57:33,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:57:33,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:57:33,326 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:33,327 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63503860 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33, skipping insertion in model container [2023-12-02 22:57:33,327 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:33,390 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:57:33,826 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:57:33,837 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:57:33,939 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:57:33,970 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:57:33,976 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:57:33,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33 WrapperNode [2023-12-02 22:57:33,977 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:57:33,978 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:57:33,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:57:33,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:57:33,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,019 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,100 INFO L138 Inliner]: procedures = 177, calls = 350, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1824 [2023-12-02 22:57:34,100 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:57:34,101 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:57:34,101 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:57:34,101 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:57:34,111 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,112 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,130 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,130 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,288 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:57:34,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:57:34,301 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:57:34,302 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:57:34,302 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:57:33" (1/1) ... [2023-12-02 22:57:34,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:57:34,317 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:57:34,333 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:57:34,335 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:57:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-12-02 22:57:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-12-02 22:57:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:57:34,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:57:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 22:57:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:57:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 22:57:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 22:57:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:57:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-12-02 22:57:34,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:57:34,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:57:34,575 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:57:34,577 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:57:36,235 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:57:37,836 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:57:37,837 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-12-02 22:57:37,838 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:57:37 BoogieIcfgContainer [2023-12-02 22:57:37,839 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:57:37,839 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:57:37,840 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:57:37,849 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:57:37,849 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:57:37" (1/1) ... [2023-12-02 22:57:37,858 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:57:37,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:57:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 338 states and 520 transitions. [2023-12-02 22:57:37,920 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 520 transitions. [2023-12-02 22:57:37,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:57:37,923 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:57:37,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:57:38,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:57:38,086 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 22:57:38,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:57:38,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 338 states and 518 transitions. [2023-12-02 22:57:38,117 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 518 transitions. [2023-12-02 22:57:38,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:57:38,118 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:57:38,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:57:38,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:57:38,265 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 22:57:38,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:57:38,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 340 states and 521 transitions. [2023-12-02 22:57:38,306 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 521 transitions. [2023-12-02 22:57:38,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:57:38,307 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:57:38,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:57:38,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:57:38,401 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:57:38,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:57:38,414 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 22:57:38,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:57:38,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 339 states and 516 transitions. [2023-12-02 22:57:38,422 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 516 transitions. [2023-12-02 22:57:38,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 22:57:38,423 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:57:38,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:57:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:57:38,517 INFO L262 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:57:38,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:57:38,523 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 22:57:38,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:57:38,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 339 states and 512 transitions. [2023-12-02 22:57:38,530 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 512 transitions. [2023-12-02 22:57:38,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 22:57:38,531 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:57:38,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:57:38,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:57:38,639 INFO L262 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:57:38,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:57:38,645 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 22:57:38,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:57:38,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 339 states and 506 transitions. [2023-12-02 22:57:38,652 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 506 transitions. [2023-12-02 22:57:38,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 22:57:38,654 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:57:38,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:57:38,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:57:38,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:57:38,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:57:38,843 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 22:57:48,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:57:48,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:57:48,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 339 states and 500 transitions. [2023-12-02 22:57:48,964 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 500 transitions. [2023-12-02 22:57:48,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 22:57:48,965 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:57:48,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:57:49,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:57:49,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:57:49,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:57:49,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:57:59,482 WARN L539 Checker$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 22:58:09,508 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:58:19,538 WARN L539 Checker$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 22:58:29,566 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 22:58:29,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:58:29,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 352 states and 515 transitions. [2023-12-02 22:58:29,627 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 515 transitions. [2023-12-02 22:58:29,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 22:58:29,629 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:58:29,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:58:29,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:58:29,822 INFO L262 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:58:29,826 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:58:29,829 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 22:58:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:58:29,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 352 states and 513 transitions. [2023-12-02 22:58:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 513 transitions. [2023-12-02 22:58:29,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 22:58:29,839 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:58:29,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:58:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:58:30,032 INFO L262 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:58:30,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:58:30,039 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 22:58:30,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:58:30,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 352 states and 511 transitions. [2023-12-02 22:58:30,078 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 511 transitions. [2023-12-02 22:58:30,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 22:58:30,079 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:58:30,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:58:30,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:58:30,299 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:58:30,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:58:30,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 22:58:40,314 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 22:58:40,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:58:40,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 352 states and 509 transitions. [2023-12-02 22:58:40,350 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 509 transitions. [2023-12-02 22:58:40,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 22:58:40,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:58:40,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:58:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:58:40,588 INFO L262 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:58:40,591 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:58:40,666 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 22:58:50,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:59:00,708 WARN L539 Checker$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 22:59:10,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.03s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-02 22:59:20,757 WARN L539 Checker$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 22:59:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:59:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 355 states and 511 transitions. [2023-12-02 22:59:20,817 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 511 transitions. [2023-12-02 22:59:20,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 22:59:20,817 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:59:20,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:59:27,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:59:27,248 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-02 22:59:27,251 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:59:27,282 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 22:59:27,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:59:27,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 356 states and 512 transitions. [2023-12-02 22:59:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 512 transitions. [2023-12-02 22:59:27,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 22:59:27,387 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:59:27,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-02 22:59:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2023-12-02 22:59:37,665 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 22:59:37,668 INFO L158 Benchmark]: Toolchain (without parser) took 124348.60ms. Allocated memory was 165.7MB in the beginning and 276.8MB in the end (delta: 111.1MB). Free memory was 122.5MB in the beginning and 127.9MB in the end (delta: -5.4MB). Peak memory consumption was 107.7MB. Max. memory is 16.1GB. [2023-12-02 22:59:37,668 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 165.7MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-12-02 22:59:37,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.88ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 86.6MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2023-12-02 22:59:37,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 121.88ms. Allocated memory is still 165.7MB. Free memory was 86.6MB in the beginning and 75.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-12-02 22:59:37,670 INFO L158 Benchmark]: Boogie Preprocessor took 199.58ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 75.8MB in the beginning and 182.9MB in the end (delta: -107.0MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-12-02 22:59:37,671 INFO L158 Benchmark]: RCFGBuilder took 3537.47ms. Allocated memory was 222.3MB in the beginning and 276.8MB in the end (delta: 54.5MB). Free memory was 182.9MB in the beginning and 184.5MB in the end (delta: -1.6MB). Peak memory consumption was 134.7MB. Max. memory is 16.1GB. [2023-12-02 22:59:37,672 INFO L158 Benchmark]: CodeCheck took 119827.59ms. Allocated memory is still 276.8MB. Free memory was 184.5MB in the beginning and 127.9MB in the end (delta: 56.6MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2023-12-02 22:59:37,675 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 0.13ms. Allocated memory is still 165.7MB. Free memory is still 138.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.88ms. Allocated memory is still 165.7MB. Free memory was 122.2MB in the beginning and 86.6MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 121.88ms. Allocated memory is still 165.7MB. Free memory was 86.6MB in the beginning and 75.8MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 199.58ms. Allocated memory was 165.7MB in the beginning and 222.3MB in the end (delta: 56.6MB). Free memory was 75.8MB in the beginning and 182.9MB in the end (delta: -107.0MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3537.47ms. Allocated memory was 222.3MB in the beginning and 276.8MB in the end (delta: 54.5MB). Free memory was 182.9MB in the beginning and 184.5MB in the end (delta: -1.6MB). Peak memory consumption was 134.7MB. Max. memory is 16.1GB. * CodeCheck took 119827.59ms. Allocated memory is still 276.8MB. Free memory was 184.5MB in the beginning and 127.9MB in the end (delta: 56.6MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-12-02 22:59:37,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/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_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/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_07f60c22-097e-447e-a140-4a5a80ed139a/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 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-12-02 22:59:39,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-02 22:59:39,592 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/config/svcomp-MemCleanup-32bit-Kojak_Bitvector.epf [2023-12-02 22:59:39,625 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-02 22:59:39,626 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-02 22:59:39,627 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-02 22:59:39,628 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-02 22:59:39,628 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-02 22:59:39,629 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-02 22:59:39,629 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-02 22:59:39,630 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-02 22:59:39,630 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-02 22:59:39,631 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-02 22:59:39,631 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-12-02 22:59:39,632 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-12-02 22:59:39,632 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-02 22:59:39,633 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-02 22:59:39,634 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-02 22:59:39,634 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-02 22:59:39,635 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-02 22:59:39,635 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-12-02 22:59:39,636 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-02 22:59:39,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-02 22:59:39,637 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-02 22:59:39,637 INFO L151 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2023-12-02 22:59:39,638 INFO L153 SettingsManager]: * Timeout in seconds=1000000 [2023-12-02 22:59:39,638 INFO L153 SettingsManager]: * Theory for external solver=ALL [2023-12-02 22:59:39,639 INFO L153 SettingsManager]: * Command for calling external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:59:39,639 INFO L153 SettingsManager]: * Choose which separate solver to use for tracechecks=External_ModelsAndUnsatCoreMode [2023-12-02 22:59:39,640 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-02 22:59:39,640 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:59:39,640 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-02 22:59:39,641 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-02 22:59:39,641 INFO L153 SettingsManager]: * Trace refinement strategy=WALRUS [2023-12-02 22:59:39,641 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-02 22:59:39,641 INFO L153 SettingsManager]: * Use separate solver for trace checks=false [2023-12-02 22:59:39,642 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-02 22:59:39,642 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_07f60c22-097e-447e-a140-4a5a80ed139a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-memcleanup) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3011b5baaaedb6c621e2913d841379eae3b8a9da7212e43b784fc8c1004eda96 [2023-12-02 22:59:39,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-02 22:59:39,946 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-02 22:59:39,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-02 22:59:39,950 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-02 22:59:39,950 INFO L274 PluginConnector]: CDTParser initialized [2023-12-02 22:59:39,951 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2023-12-02 22:59:42,713 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-02 22:59:43,019 INFO L384 CDTParser]: Found 1 translation units. [2023-12-02 22:59:43,020 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_test8-2.i [2023-12-02 22:59:43,038 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data/8523ad905/a77bf64b59d640e3b8c59b056b0f973f/FLAG9d1de125a [2023-12-02 22:59:43,053 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/data/8523ad905/a77bf64b59d640e3b8c59b056b0f973f [2023-12-02 22:59:43,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-02 22:59:43,057 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-12-02 22:59:43,058 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-02 22:59:43,059 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-02 22:59:43,064 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-02 22:59:43,065 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,066 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73d669aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43, skipping insertion in model container [2023-12-02 22:59:43,066 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,126 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:59:43,573 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:59:43,586 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-12-02 22:59:43,598 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-02 22:59:43,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:59:43,687 INFO L202 MainTranslator]: Completed pre-run [2023-12-02 22:59:43,750 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-02 22:59:43,785 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-12-02 22:59:43,792 INFO L206 MainTranslator]: Completed translation [2023-12-02 22:59:43,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43 WrapperNode [2023-12-02 22:59:43,793 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-02 22:59:43,794 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-02 22:59:43,794 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-02 22:59:43,794 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-02 22:59:43,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,833 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,903 INFO L138 Inliner]: procedures = 180, calls = 350, calls flagged for inlining = 24, calls inlined = 68, statements flattened = 1490 [2023-12-02 22:59:43,903 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-02 22:59:43,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-02 22:59:43,904 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-02 22:59:43,904 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-02 22:59:43,914 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:43,987 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:44,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:44,009 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:44,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:44,027 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-02 22:59:44,042 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-02 22:59:44,042 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-02 22:59:44,043 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-02 22:59:44,043 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:59:43" (1/1) ... [2023-12-02 22:59:44,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2023-12-02 22:59:44,059 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/z3 [2023-12-02 22:59:44,072 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2023-12-02 22:59:44,084 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2023-12-02 22:59:44,114 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2023-12-02 22:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-12-02 22:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-12-02 22:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-02 22:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-12-02 22:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-02 22:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-12-02 22:59:44,115 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-12-02 22:59:44,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-02 22:59:44,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-12-02 22:59:44,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-12-02 22:59:44,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-02 22:59:44,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-02 22:59:44,310 INFO L241 CfgBuilder]: Building ICFG [2023-12-02 22:59:44,312 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-02 22:59:58,492 INFO L282 CfgBuilder]: Performing block encoding [2023-12-02 22:59:58,939 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-02 22:59:58,939 INFO L309 CfgBuilder]: Removed 71 assume(true) statements. [2023-12-02 22:59:58,941 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:59:58 BoogieIcfgContainer [2023-12-02 22:59:58,941 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-02 22:59:58,942 INFO L112 PluginConnector]: ------------------------CodeCheck---------------------------- [2023-12-02 22:59:58,942 INFO L270 PluginConnector]: Initializing CodeCheck... [2023-12-02 22:59:58,949 INFO L274 PluginConnector]: CodeCheck initialized [2023-12-02 22:59:58,949 INFO L184 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:59:58" (1/1) ... [2023-12-02 22:59:58,958 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-02 22:59:59,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:59:59,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 338 states and 520 transitions. [2023-12-02 22:59:59,011 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 520 transitions. [2023-12-02 22:59:59,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-12-02 22:59:59,013 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:59:59,013 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:59:59,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:59:59,031 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:59:59,032 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2023-12-02 22:59:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:59:59,358 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:59:59,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:59:59,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:59:59,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:59:59,439 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 22:59:59,444 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (2)] Forceful destruction successful, exit code 0 [2023-12-02 22:59:59,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 22:59:59,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 338 states and 518 transitions. [2023-12-02 22:59:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 518 transitions. [2023-12-02 22:59:59,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 22:59:59,498 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 22:59:59,498 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 22:59:59,499 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 22:59:59,502 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 22:59:59,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2023-12-02 22:59:59,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:59:59,826 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 22:59:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 22:59:59,950 INFO L262 TraceCheckSpWp]: Trace formula consists of 102 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 22:59:59,952 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 22:59:59,954 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 22:59:59,957 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 22:59:59,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2023-12-02 23:00:00,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:00,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 337 states and 513 transitions. [2023-12-02 23:00:00,061 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 513 transitions. [2023-12-02 23:00:00,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-12-02 23:00:00,062 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:00,062 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:00,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:00,063 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:00,064 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-02 23:00:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:00,371 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:00,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:00,443 INFO L262 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:00:00,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:00,489 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:00:00,489 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:00:00,491 INFO L173 IndexEqualityManager]: detected equality via solver [2023-12-02 23:00:00,503 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 23:00:00,629 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-02 23:00:00,629 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 23:00:00,652 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 23:00:00,656 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-02 23:00:00,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:00,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 339 states and 516 transitions. [2023-12-02 23:00:00,990 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 516 transitions. [2023-12-02 23:00:00,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-12-02 23:00:00,991 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:00,992 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:00,992 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:00,995 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:00,999 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2023-12-02 23:00:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:01,297 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:01,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:01,408 INFO L262 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:00:01,411 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:01,413 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 23:00:01,417 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (5)] Ended with exit code 0 [2023-12-02 23:00:01,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:01,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 339 states and 512 transitions. [2023-12-02 23:00:01,433 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 512 transitions. [2023-12-02 23:00:01,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-12-02 23:00:01,434 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:01,434 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:01,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:01,435 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:01,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-02 23:00:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:01,773 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:01,911 INFO L262 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:00:01,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:01,916 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 23:00:01,919 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:00:01,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-02 23:00:01,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:01,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 339 states and 506 transitions. [2023-12-02 23:00:01,932 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 506 transitions. [2023-12-02 23:00:01,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-12-02 23:00:01,934 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:01,934 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:01,934 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:01,935 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:01,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2023-12-02 23:00:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:02,277 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:02,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:00:02,457 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:02,460 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 23:00:02,464 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Ended with exit code 0 [2023-12-02 23:00:02,465 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (7)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:00:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:03,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 339 states and 498 transitions. [2023-12-02 23:00:03,266 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 498 transitions. [2023-12-02 23:00:03,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2023-12-02 23:00:03,267 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:03,267 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:03,267 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:03,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:03,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-02 23:00:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:03,718 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:04,009 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:00:04,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:04,149 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 23:00:04,155 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-02 23:00:04,155 ERROR L418 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (8)] Exception during sending of exit command (exit): Broken pipe [2023-12-02 23:00:05,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:05,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 352 states and 513 transitions. [2023-12-02 23:00:05,898 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 513 transitions. [2023-12-02 23:00:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-12-02 23:00:05,899 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:05,899 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:05,899 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:05,900 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:05,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2023-12-02 23:00:06,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:06,272 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:06,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:06,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:00:06,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:06,489 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 23:00:06,493 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (9)] Ended with exit code 0 [2023-12-02 23:00:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:06,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 352 states and 511 transitions. [2023-12-02 23:00:06,506 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 511 transitions. [2023-12-02 23:00:06,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-12-02 23:00:06,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:06,507 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:06,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:06,508 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:06,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-02 23:00:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:06,976 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:07,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:07,232 INFO L262 TraceCheckSpWp]: Trace formula consists of 306 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-02 23:00:07,234 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-02 23:00:07,241 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (10)] Ended with exit code 0 [2023-12-02 23:00:07,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:07,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 352 states and 509 transitions. [2023-12-02 23:00:07,251 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 509 transitions. [2023-12-02 23:00:07,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2023-12-02 23:00:07,251 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:07,252 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:07,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:07,253 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:07,254 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2023-12-02 23:00:07,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:07,737 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:07,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:07,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:00:07,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:08,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:00:08,111 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2023-12-02 23:00:08,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:08,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 511 states to 355 states and 511 transitions. [2023-12-02 23:00:08,138 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 511 transitions. [2023-12-02 23:00:08,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-12-02 23:00:08,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:08,139 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:08,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:08,140 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:08,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-02 23:00:08,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:08,619 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:08,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:08,920 INFO L262 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:00:08,923 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:08,986 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 23:00:08,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (12)] Ended with exit code 0 [2023-12-02 23:00:15,734 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:00:15,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:15,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 356 states and 512 transitions. [2023-12-02 23:00:15,829 INFO L276 IsEmpty]: Start isEmpty. Operand 356 states and 512 transitions. [2023-12-02 23:00:15,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2023-12-02 23:00:15,829 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:15,830 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:15,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:15,831 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:15,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Waiting until timeout for monitored process [2023-12-02 23:00:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:16,482 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:16,779 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-02 23:00:16,781 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:16,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:00:16,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (13)] Ended with exit code 0 [2023-12-02 23:00:26,933 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 23:00:26,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:26,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 513 states to 357 states and 513 transitions. [2023-12-02 23:00:26,972 INFO L276 IsEmpty]: Start isEmpty. Operand 357 states and 513 transitions. [2023-12-02 23:00:26,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-12-02 23:00:26,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:26,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:26,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:26,973 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:26,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-02 23:00:27,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:27,763 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:28,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:28,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:00:28,077 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:28,164 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-12-02 23:00:28,171 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (14)] Ended with exit code 0 [2023-12-02 23:00:28,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 514 states to 358 states and 514 transitions. [2023-12-02 23:00:28,378 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 514 transitions. [2023-12-02 23:00:28,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2023-12-02 23:00:28,379 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:28,379 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:28,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:28,380 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:28,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Waiting until timeout for monitored process [2023-12-02 23:00:29,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:29,231 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:29,531 INFO L262 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-02 23:00:29,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:29,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:00:29,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (15)] Ended with exit code 0 [2023-12-02 23:00:39,863 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 23:00:39,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:39,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 359 states and 515 transitions. [2023-12-02 23:00:39,905 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 515 transitions. [2023-12-02 23:00:39,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-12-02 23:00:39,905 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:39,905 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:39,905 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:39,906 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:39,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-02 23:00:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:40,699 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:40,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:41,000 INFO L262 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:00:41,002 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:41,097 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:00:41,104 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (16)] Ended with exit code 0 [2023-12-02 23:00:51,375 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 23:00:51,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:00:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 516 states to 360 states and 516 transitions. [2023-12-02 23:00:51,417 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 516 transitions. [2023-12-02 23:00:51,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2023-12-02 23:00:51,418 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:00:51,418 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:00:51,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:00:51,419 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:00:51,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Waiting until timeout for monitored process [2023-12-02 23:00:52,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:52,383 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:00:52,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:00:52,703 INFO L262 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:00:52,705 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:00:52,830 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-12-02 23:00:52,841 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (17)] Ended with exit code 0 [2023-12-02 23:01:03,136 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 23:01:03,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:03,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 517 states to 361 states and 517 transitions. [2023-12-02 23:01:03,178 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 517 transitions. [2023-12-02 23:01:03,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-12-02 23:01:03,178 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:03,178 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:03,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:03,179 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:03,180 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-02 23:01:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:04,087 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:04,395 INFO L262 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-02 23:01:04,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:04,489 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:01:04,498 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (18)] Ended with exit code 0 [2023-12-02 23:01:04,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:04,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 362 states and 518 transitions. [2023-12-02 23:01:04,754 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 518 transitions. [2023-12-02 23:01:04,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2023-12-02 23:01:04,754 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:04,754 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:04,755 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:04,755 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:04,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Waiting until timeout for monitored process [2023-12-02 23:01:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:05,779 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:06,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:06,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-02 23:01:06,080 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:06,185 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:01:06,195 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (19)] Ended with exit code 0 [2023-12-02 23:01:06,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:06,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 363 states and 519 transitions. [2023-12-02 23:01:06,505 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 519 transitions. [2023-12-02 23:01:06,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-12-02 23:01:06,506 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:06,506 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:06,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:06,507 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:06,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-02 23:01:07,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:07,525 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:07,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:07,838 INFO L262 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:01:07,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:07,962 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:01:07,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-02 23:01:18,302 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 23:01:18,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:18,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 364 states and 520 transitions. [2023-12-02 23:01:18,345 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 520 transitions. [2023-12-02 23:01:18,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2023-12-02 23:01:18,345 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:18,345 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:18,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:18,346 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:18,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-12-02 23:01:19,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:19,420 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:19,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:01:19,732 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:19,858 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-12-02 23:01:19,868 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-12-02 23:01:30,205 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 23:01:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:30,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 365 states and 521 transitions. [2023-12-02 23:01:30,252 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 521 transitions. [2023-12-02 23:01:30,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-12-02 23:01:30,253 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:30,253 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:30,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:30,254 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:30,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-02 23:01:31,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:31,375 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:31,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:31,701 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-02 23:01:31,702 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:31,841 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:01:31,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (22)] Ended with exit code 0 [2023-12-02 23:01:32,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:32,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 522 states to 366 states and 522 transitions. [2023-12-02 23:01:32,255 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 522 transitions. [2023-12-02 23:01:32,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-12-02 23:01:32,256 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:32,256 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:32,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:32,257 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:32,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-12-02 23:01:33,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:33,459 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:33,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:33,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-02 23:01:33,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:01:33,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (23)] Ended with exit code 0 [2023-12-02 23:01:34,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:34,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 367 states and 523 transitions. [2023-12-02 23:01:34,410 INFO L276 IsEmpty]: Start isEmpty. Operand 367 states and 523 transitions. [2023-12-02 23:01:34,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-12-02 23:01:34,411 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:34,411 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:34,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:34,412 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:34,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Waiting until timeout for monitored process [2023-12-02 23:01:35,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:35,720 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:36,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:36,061 INFO L262 TraceCheckSpWp]: Trace formula consists of 544 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:01:36,063 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:36,232 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:01:36,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (24)] Ended with exit code 0 [2023-12-02 23:01:46,677 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 23:01:46,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:46,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 524 states to 368 states and 524 transitions. [2023-12-02 23:01:46,718 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 524 transitions. [2023-12-02 23:01:46,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-12-02 23:01:46,719 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:46,719 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:46,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:46,720 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:46,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-12-02 23:01:48,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:48,044 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:01:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:01:48,403 INFO L262 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:01:48,405 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:01:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2023-12-02 23:01:48,597 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-12-02 23:01:59,095 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 23:01:59,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:01:59,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 369 states and 525 transitions. [2023-12-02 23:01:59,150 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 525 transitions. [2023-12-02 23:01:59,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-12-02 23:01:59,150 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:01:59,151 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:01:59,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:01:59,151 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:01:59,153 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Waiting until timeout for monitored process [2023-12-02 23:02:00,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:00,424 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:00,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-02 23:02:00,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:00,943 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:02:00,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (26)] Forceful destruction successful, exit code 0 [2023-12-02 23:02:01,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:01,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 370 states and 526 transitions. [2023-12-02 23:02:01,416 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 526 transitions. [2023-12-02 23:02:01,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-12-02 23:02:01,416 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:01,416 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:01,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:01,417 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:01,418 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-12-02 23:02:02,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:02,821 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:03,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:03,159 INFO L262 TraceCheckSpWp]: Trace formula consists of 577 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-02 23:02:03,160 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:03,338 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:02:03,355 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-12-02 23:02:03,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:03,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 371 states and 527 transitions. [2023-12-02 23:02:03,901 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 527 transitions. [2023-12-02 23:02:03,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-12-02 23:02:03,901 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:03,901 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:03,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:03,902 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:03,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Waiting until timeout for monitored process [2023-12-02 23:02:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:05,327 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:05,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:05,711 INFO L262 TraceCheckSpWp]: Trace formula consists of 588 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:02:05,713 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:05,962 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:02:05,983 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (28)] Ended with exit code 0 [2023-12-02 23:02:16,569 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 23:02:16,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:16,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 372 states and 528 transitions. [2023-12-02 23:02:16,610 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 528 transitions. [2023-12-02 23:02:16,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-12-02 23:02:16,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:16,611 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:16,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:16,612 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:16,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-12-02 23:02:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:18,252 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:18,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:18,657 INFO L262 TraceCheckSpWp]: Trace formula consists of 599 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:02:18,660 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:18,920 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-12-02 23:02:18,941 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-12-02 23:02:26,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 7.03s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:26,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:26,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 373 states and 529 transitions. [2023-12-02 23:02:26,656 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 529 transitions. [2023-12-02 23:02:26,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-12-02 23:02:26,657 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:26,657 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:26,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:26,658 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:26,659 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Waiting until timeout for monitored process [2023-12-02 23:02:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:28,183 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:28,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:28,514 INFO L262 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-02 23:02:28,516 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:28,739 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:02:28,758 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (30)] Ended with exit code 0 [2023-12-02 23:02:29,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:29,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 530 states to 374 states and 530 transitions. [2023-12-02 23:02:29,359 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 530 transitions. [2023-12-02 23:02:29,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-12-02 23:02:29,359 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:29,359 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:29,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:29,360 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:29,361 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-12-02 23:02:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:31,094 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:31,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:31,457 INFO L262 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 13 conjunts are in the unsatisfiable core [2023-12-02 23:02:31,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:31,691 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:02:31,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-12-02 23:02:32,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:32,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 375 states and 531 transitions. [2023-12-02 23:02:32,363 INFO L276 IsEmpty]: Start isEmpty. Operand 375 states and 531 transitions. [2023-12-02 23:02:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-12-02 23:02:32,363 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:32,364 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:32,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:32,365 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:32,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Waiting until timeout for monitored process [2023-12-02 23:02:34,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:34,148 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:34,518 INFO L262 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:02:34,520 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:34,772 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:02:34,796 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (32)] Ended with exit code 0 [2023-12-02 23:02:45,533 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 23:02:45,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:45,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 376 states and 532 transitions. [2023-12-02 23:02:45,581 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 532 transitions. [2023-12-02 23:02:45,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-12-02 23:02:45,582 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:45,582 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:45,582 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:45,583 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:45,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-12-02 23:02:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:47,394 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:47,758 INFO L262 TraceCheckSpWp]: Trace formula consists of 643 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:02:47,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:48,042 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2023-12-02 23:02:48,065 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-12-02 23:02:57,116 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.34s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:02:57,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:02:57,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 377 states and 533 transitions. [2023-12-02 23:02:57,170 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 533 transitions. [2023-12-02 23:02:57,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-12-02 23:02:57,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:02:57,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:02:57,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:02:57,172 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:02:57,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Waiting until timeout for monitored process [2023-12-02 23:02:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:58,929 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:02:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:02:59,387 INFO L262 TraceCheckSpWp]: Trace formula consists of 654 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-02 23:02:59,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:02:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:02:59,724 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (34)] Ended with exit code 0 [2023-12-02 23:03:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:00,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 378 states and 534 transitions. [2023-12-02 23:03:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 534 transitions. [2023-12-02 23:03:00,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-12-02 23:03:00,470 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:00,470 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:00,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:00,471 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:00,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-12-02 23:03:02,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:02,293 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:02,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:02,663 INFO L262 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 15 conjunts are in the unsatisfiable core [2023-12-02 23:03:02,664 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:02,933 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:03:02,958 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (35)] Forceful destruction successful, exit code 0 [2023-12-02 23:03:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:03,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 535 states to 379 states and 535 transitions. [2023-12-02 23:03:03,753 INFO L276 IsEmpty]: Start isEmpty. Operand 379 states and 535 transitions. [2023-12-02 23:03:03,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-12-02 23:03:03,753 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:03,753 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:03,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:03,754 INFO L229 MonitoredProcess]: Starting monitored process 36 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:03,755 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Waiting until timeout for monitored process [2023-12-02 23:03:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:05,777 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:06,163 INFO L262 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:03:06,165 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:06,462 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:03:06,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (36)] Ended with exit code 0 [2023-12-02 23:03:17,338 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 23:03:17,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:17,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 380 states and 536 transitions. [2023-12-02 23:03:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 536 transitions. [2023-12-02 23:03:17,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-12-02 23:03:17,391 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:17,391 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:17,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:17,392 INFO L229 MonitoredProcess]: Starting monitored process 37 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:17,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Waiting until timeout for monitored process [2023-12-02 23:03:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:19,440 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:19,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 687 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:03:19,834 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2023-12-02 23:03:20,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (37)] Ended with exit code 0 [2023-12-02 23:03:31,034 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 23:03:31,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:31,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 381 states and 537 transitions. [2023-12-02 23:03:31,077 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 537 transitions. [2023-12-02 23:03:31,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-12-02 23:03:31,077 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:31,077 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:31,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:31,078 INFO L229 MonitoredProcess]: Starting monitored process 38 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:31,079 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Waiting until timeout for monitored process [2023-12-02 23:03:33,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:33,091 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:33,491 INFO L262 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-02 23:03:33,493 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:33,782 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 78 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:03:33,810 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (38)] Ended with exit code 0 [2023-12-02 23:03:34,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:34,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 382 states and 538 transitions. [2023-12-02 23:03:34,704 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 538 transitions. [2023-12-02 23:03:34,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-12-02 23:03:34,704 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:34,704 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:34,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:34,705 INFO L229 MonitoredProcess]: Starting monitored process 39 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:34,706 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Waiting until timeout for monitored process [2023-12-02 23:03:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:36,883 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:37,297 INFO L262 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 17 conjunts are in the unsatisfiable core [2023-12-02 23:03:37,299 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:37,602 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:03:37,633 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (39)] Ended with exit code 0 [2023-12-02 23:03:38,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:38,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 383 states and 539 transitions. [2023-12-02 23:03:38,528 INFO L276 IsEmpty]: Start isEmpty. Operand 383 states and 539 transitions. [2023-12-02 23:03:38,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-12-02 23:03:38,528 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:38,528 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:38,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:38,529 INFO L229 MonitoredProcess]: Starting monitored process 40 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:38,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Waiting until timeout for monitored process [2023-12-02 23:03:40,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:40,617 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:40,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:40,989 INFO L262 TraceCheckSpWp]: Trace formula consists of 720 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:03:40,990 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:41,330 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:03:41,360 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (40)] Ended with exit code 0 [2023-12-02 23:03:52,298 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 23:03:52,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:03:52,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 384 states and 540 transitions. [2023-12-02 23:03:52,341 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 540 transitions. [2023-12-02 23:03:52,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-12-02 23:03:52,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:03:52,341 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:03:52,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:03:52,342 INFO L229 MonitoredProcess]: Starting monitored process 41 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:03:52,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Waiting until timeout for monitored process [2023-12-02 23:03:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:54,373 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:03:54,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:03:54,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 731 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 23:03:54,769 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:03:55,097 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2023-12-02 23:03:55,140 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (41)] Ended with exit code 0 [2023-12-02 23:04:06,131 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 23:04:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:06,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 385 states and 541 transitions. [2023-12-02 23:04:06,171 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 541 transitions. [2023-12-02 23:04:06,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-12-02 23:04:06,171 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:06,171 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:06,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:06,172 INFO L229 MonitoredProcess]: Starting monitored process 42 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:06,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Waiting until timeout for monitored process [2023-12-02 23:04:08,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:08,464 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:08,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 742 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-02 23:04:08,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:09,206 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:04:09,236 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (42)] Ended with exit code 0 [2023-12-02 23:04:10,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:10,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 386 states and 542 transitions. [2023-12-02 23:04:10,197 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 542 transitions. [2023-12-02 23:04:10,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-12-02 23:04:10,197 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:10,197 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:10,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:10,198 INFO L229 MonitoredProcess]: Starting monitored process 43 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:10,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Waiting until timeout for monitored process [2023-12-02 23:04:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:12,374 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:12,777 INFO L262 TraceCheckSpWp]: Trace formula consists of 753 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-02 23:04:12,779 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:13,162 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 120 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:04:13,196 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (43)] Forceful destruction successful, exit code 0 [2023-12-02 23:04:14,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:14,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 387 states and 543 transitions. [2023-12-02 23:04:14,308 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 543 transitions. [2023-12-02 23:04:14,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-12-02 23:04:14,309 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:14,309 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:14,309 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:14,310 INFO L229 MonitoredProcess]: Starting monitored process 44 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:14,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Waiting until timeout for monitored process [2023-12-02 23:04:16,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:16,826 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:17,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 764 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 23:04:17,261 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:17,670 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:04:17,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (44)] Ended with exit code 0 [2023-12-02 23:04:28,859 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 23:04:28,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:28,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 388 states and 544 transitions. [2023-12-02 23:04:28,907 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 544 transitions. [2023-12-02 23:04:28,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-12-02 23:04:28,908 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:28,908 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:28,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:28,908 INFO L229 MonitoredProcess]: Starting monitored process 45 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:28,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Waiting until timeout for monitored process [2023-12-02 23:04:31,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:31,461 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:31,871 INFO L262 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:04:31,873 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:32,279 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-12-02 23:04:32,315 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (45)] Ended with exit code 0 [2023-12-02 23:04:43,499 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:04:43,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:43,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 389 states and 545 transitions. [2023-12-02 23:04:43,563 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 545 transitions. [2023-12-02 23:04:43,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2023-12-02 23:04:43,563 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:43,563 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:43,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:43,564 INFO L229 MonitoredProcess]: Starting monitored process 46 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:43,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Waiting until timeout for monitored process [2023-12-02 23:04:46,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:46,155 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:46,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:46,613 INFO L262 TraceCheckSpWp]: Trace formula consists of 786 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-02 23:04:46,615 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:47,038 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 0 proven. 136 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:04:47,075 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (46)] Ended with exit code 0 [2023-12-02 23:04:48,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:48,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 390 states and 546 transitions. [2023-12-02 23:04:48,429 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 546 transitions. [2023-12-02 23:04:48,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-12-02 23:04:48,429 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:48,429 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:48,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:48,430 INFO L229 MonitoredProcess]: Starting monitored process 47 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:48,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Waiting until timeout for monitored process [2023-12-02 23:04:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:51,034 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:51,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:51,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 797 conjuncts, 21 conjunts are in the unsatisfiable core [2023-12-02 23:04:51,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:51,933 INFO L134 CoverageAnalysis]: Checked inductivity of 324 backedges. 0 proven. 153 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:04:51,958 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (47)] Ended with exit code 0 [2023-12-02 23:04:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:04:53,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 391 states and 547 transitions. [2023-12-02 23:04:53,366 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 547 transitions. [2023-12-02 23:04:53,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-12-02 23:04:53,366 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:04:53,366 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:04:53,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:04:53,367 INFO L229 MonitoredProcess]: Starting monitored process 48 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:04:53,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Waiting until timeout for monitored process [2023-12-02 23:04:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:55,717 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:04:56,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:04:56,158 INFO L262 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:04:56,161 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:04:56,609 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:04:56,634 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (48)] Ended with exit code 0 [2023-12-02 23:05:03,303 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.23s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:05:03,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:03,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 392 states and 548 transitions. [2023-12-02 23:05:03,360 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 548 transitions. [2023-12-02 23:05:03,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2023-12-02 23:05:03,360 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:03,360 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:03,361 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:03,361 INFO L229 MonitoredProcess]: Starting monitored process 49 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:03,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Waiting until timeout for monitored process [2023-12-02 23:05:06,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:06,503 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:06,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:06,925 INFO L262 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:05:06,927 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:07,460 INFO L134 CoverageAnalysis]: Checked inductivity of 361 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2023-12-02 23:05:07,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (49)] Ended with exit code 0 [2023-12-02 23:05:18,939 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 23:05:18,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:18,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 393 states and 549 transitions. [2023-12-02 23:05:18,999 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 549 transitions. [2023-12-02 23:05:18,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2023-12-02 23:05:18,999 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:18,999 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:18,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:19,000 INFO L229 MonitoredProcess]: Starting monitored process 50 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:19,001 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Waiting until timeout for monitored process [2023-12-02 23:05:22,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:22,160 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:22,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 22 conjunts are in the unsatisfiable core [2023-12-02 23:05:22,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:23,115 INFO L134 CoverageAnalysis]: Checked inductivity of 381 backedges. 0 proven. 171 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:05:23,141 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (50)] Ended with exit code 0 [2023-12-02 23:05:24,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:24,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 394 states and 550 transitions. [2023-12-02 23:05:24,572 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 550 transitions. [2023-12-02 23:05:24,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-12-02 23:05:24,572 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:24,573 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:24,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:24,574 INFO L229 MonitoredProcess]: Starting monitored process 51 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:24,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Waiting until timeout for monitored process [2023-12-02 23:05:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:27,733 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:28,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:28,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 841 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-02 23:05:28,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:28,672 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 0 proven. 190 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:05:28,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (51)] Ended with exit code 0 [2023-12-02 23:05:30,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:30,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 395 states and 551 transitions. [2023-12-02 23:05:30,138 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 551 transitions. [2023-12-02 23:05:30,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2023-12-02 23:05:30,138 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:30,138 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:30,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:30,139 INFO L229 MonitoredProcess]: Starting monitored process 52 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:30,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Waiting until timeout for monitored process [2023-12-02 23:05:33,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:33,121 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:33,603 INFO L262 TraceCheckSpWp]: Trace formula consists of 852 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 23:05:33,605 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:34,124 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:05:34,152 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (52)] Ended with exit code 0 [2023-12-02 23:05:43,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 8.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:05:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 396 states and 552 transitions. [2023-12-02 23:05:43,868 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 552 transitions. [2023-12-02 23:05:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-12-02 23:05:43,869 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:43,869 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:43,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:43,870 INFO L229 MonitoredProcess]: Starting monitored process 53 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:43,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Waiting until timeout for monitored process [2023-12-02 23:05:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:47,028 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:05:47,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:05:47,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 863 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 23:05:47,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:05:48,010 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2023-12-02 23:05:48,037 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (53)] Ended with exit code 0 [2023-12-02 23:05:59,565 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 23:05:59,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:05:59,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 397 states and 553 transitions. [2023-12-02 23:05:59,611 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 553 transitions. [2023-12-02 23:05:59,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2023-12-02 23:05:59,611 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:05:59,611 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:05:59,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:05:59,612 INFO L229 MonitoredProcess]: Starting monitored process 54 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:05:59,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Waiting until timeout for monitored process [2023-12-02 23:06:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:02,939 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:03,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:03,396 INFO L262 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 24 conjunts are in the unsatisfiable core [2023-12-02 23:06:03,399 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:03,974 INFO L134 CoverageAnalysis]: Checked inductivity of 463 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:06:04,003 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (54)] Ended with exit code 0 [2023-12-02 23:06:05,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 398 states and 554 transitions. [2023-12-02 23:06:05,585 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 554 transitions. [2023-12-02 23:06:05,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-12-02 23:06:05,585 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:05,585 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:05,585 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:05,586 INFO L229 MonitoredProcess]: Starting monitored process 55 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:05,587 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Waiting until timeout for monitored process [2023-12-02 23:06:08,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:08,972 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:09,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:09,426 INFO L262 TraceCheckSpWp]: Trace formula consists of 885 conjuncts, 25 conjunts are in the unsatisfiable core [2023-12-02 23:06:09,428 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:06:09,992 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (55)] Ended with exit code 0 [2023-12-02 23:06:11,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 399 states and 555 transitions. [2023-12-02 23:06:11,599 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 555 transitions. [2023-12-02 23:06:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-12-02 23:06:11,599 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:11,599 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:11,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:11,600 INFO L229 MonitoredProcess]: Starting monitored process 56 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:11,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Waiting until timeout for monitored process [2023-12-02 23:06:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:14,707 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:15,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:15,183 INFO L262 TraceCheckSpWp]: Trace formula consists of 896 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 23:06:15,185 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:15,752 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:06:15,781 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (56)] Ended with exit code 0 [2023-12-02 23:06:27,446 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 23:06:27,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:27,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 400 states and 556 transitions. [2023-12-02 23:06:27,506 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 556 transitions. [2023-12-02 23:06:27,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2023-12-02 23:06:27,507 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:27,508 INFO L229 MonitoredProcess]: Starting monitored process 57 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:27,509 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Waiting until timeout for monitored process [2023-12-02 23:06:30,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:30,798 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:31,318 INFO L262 TraceCheckSpWp]: Trace formula consists of 907 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 23:06:31,320 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:31,898 INFO L134 CoverageAnalysis]: Checked inductivity of 529 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2023-12-02 23:06:31,928 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (57)] Ended with exit code 0 [2023-12-02 23:06:43,549 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 23:06:43,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:43,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 401 states and 557 transitions. [2023-12-02 23:06:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 557 transitions. [2023-12-02 23:06:43,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2023-12-02 23:06:43,605 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:43,606 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:43,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:43,606 INFO L229 MonitoredProcess]: Starting monitored process 58 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:43,607 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Waiting until timeout for monitored process [2023-12-02 23:06:46,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:46,940 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:47,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:47,399 INFO L262 TraceCheckSpWp]: Trace formula consists of 918 conjuncts, 26 conjunts are in the unsatisfiable core [2023-12-02 23:06:47,401 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:47,925 INFO L134 CoverageAnalysis]: Checked inductivity of 553 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:06:47,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (58)] Ended with exit code 0 [2023-12-02 23:06:49,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:49,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 558 states to 402 states and 558 transitions. [2023-12-02 23:06:49,631 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 558 transitions. [2023-12-02 23:06:49,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-12-02 23:06:49,631 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:49,632 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:49,632 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:49,632 INFO L229 MonitoredProcess]: Starting monitored process 59 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:49,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Waiting until timeout for monitored process [2023-12-02 23:06:53,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:53,215 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:06:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:53,675 INFO L262 TraceCheckSpWp]: Trace formula consists of 929 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-02 23:06:53,677 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:06:54,294 INFO L134 CoverageAnalysis]: Checked inductivity of 576 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:06:54,326 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (59)] Forceful destruction successful, exit code 0 [2023-12-02 23:06:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:06:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 403 states and 559 transitions. [2023-12-02 23:06:56,117 INFO L276 IsEmpty]: Start isEmpty. Operand 403 states and 559 transitions. [2023-12-02 23:06:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-12-02 23:06:56,117 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:06:56,117 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:06:56,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:06:56,118 INFO L229 MonitoredProcess]: Starting monitored process 60 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:06:56,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Waiting until timeout for monitored process [2023-12-02 23:06:59,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:06:59,619 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:00,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:00,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 23:07:00,112 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:00,759 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:07:00,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (60)] Ended with exit code 0 [2023-12-02 23:07:09,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 6.43s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:07:09,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:09,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 404 states and 560 transitions. [2023-12-02 23:07:09,119 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 560 transitions. [2023-12-02 23:07:09,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2023-12-02 23:07:09,120 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:09,120 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:09,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:09,121 INFO L229 MonitoredProcess]: Starting monitored process 61 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:09,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Waiting until timeout for monitored process [2023-12-02 23:07:12,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:12,831 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:13,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:13,305 INFO L262 TraceCheckSpWp]: Trace formula consists of 951 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:07:13,307 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:13,976 INFO L134 CoverageAnalysis]: Checked inductivity of 625 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2023-12-02 23:07:14,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (61)] Ended with exit code 0 [2023-12-02 23:07:25,922 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 23:07:25,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:25,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 405 states and 561 transitions. [2023-12-02 23:07:25,972 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 561 transitions. [2023-12-02 23:07:25,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-02 23:07:25,972 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:25,972 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:25,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:25,973 INFO L229 MonitoredProcess]: Starting monitored process 62 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:25,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Waiting until timeout for monitored process [2023-12-02 23:07:29,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:29,725 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:30,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 962 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-02 23:07:30,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:30,884 INFO L134 CoverageAnalysis]: Checked inductivity of 651 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:07:30,917 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (62)] Ended with exit code 0 [2023-12-02 23:07:32,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:32,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 406 states and 562 transitions. [2023-12-02 23:07:32,942 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 562 transitions. [2023-12-02 23:07:32,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-12-02 23:07:32,942 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:32,942 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:32,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:32,943 INFO L229 MonitoredProcess]: Starting monitored process 63 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:32,944 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Waiting until timeout for monitored process [2023-12-02 23:07:36,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:36,586 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:37,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:37,054 INFO L262 TraceCheckSpWp]: Trace formula consists of 973 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-02 23:07:37,057 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:37,705 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 0 proven. 325 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:07:37,739 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (63)] Ended with exit code 0 [2023-12-02 23:07:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 407 states and 563 transitions. [2023-12-02 23:07:39,654 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 563 transitions. [2023-12-02 23:07:39,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-12-02 23:07:39,655 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:39,655 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:39,655 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:39,656 INFO L229 MonitoredProcess]: Starting monitored process 64 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:39,657 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Waiting until timeout for monitored process [2023-12-02 23:07:43,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:43,744 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:07:44,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:07:44,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 984 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 23:07:44,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:07:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 702 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:07:45,002 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (64)] Ended with exit code 0 [2023-12-02 23:07:56,870 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:07:56,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:07:56,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 408 states and 564 transitions. [2023-12-02 23:07:56,934 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 564 transitions. [2023-12-02 23:07:56,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2023-12-02 23:07:56,935 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:07:56,935 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:07:56,935 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:07:56,936 INFO L229 MonitoredProcess]: Starting monitored process 65 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:07:56,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Waiting until timeout for monitored process [2023-12-02 23:08:00,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:00,689 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:01,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 23:08:01,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:01,908 INFO L134 CoverageAnalysis]: Checked inductivity of 729 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2023-12-02 23:08:01,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (65)] Ended with exit code 0 [2023-12-02 23:08:13,285 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 9.18s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:08:13,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:13,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 409 states and 565 transitions. [2023-12-02 23:08:13,341 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 565 transitions. [2023-12-02 23:08:13,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-12-02 23:08:13,341 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:13,341 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:13,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:13,342 INFO L229 MonitoredProcess]: Starting monitored process 66 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:13,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Waiting until timeout for monitored process [2023-12-02 23:08:16,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:16,842 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:17,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:17,374 INFO L262 TraceCheckSpWp]: Trace formula consists of 1006 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-02 23:08:17,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:18,119 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 0 proven. 351 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:08:18,156 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (66)] Ended with exit code 0 [2023-12-02 23:08:20,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:20,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 410 states and 566 transitions. [2023-12-02 23:08:20,301 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 566 transitions. [2023-12-02 23:08:20,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-02 23:08:20,301 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:20,301 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:20,301 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:20,302 INFO L229 MonitoredProcess]: Starting monitored process 67 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:20,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Waiting until timeout for monitored process [2023-12-02 23:08:24,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:24,429 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:24,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:24,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 1017 conjuncts, 31 conjunts are in the unsatisfiable core [2023-12-02 23:08:24,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 784 backedges. 0 proven. 378 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:08:25,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (67)] Ended with exit code 0 [2023-12-02 23:08:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:27,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 411 states and 567 transitions. [2023-12-02 23:08:27,853 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 567 transitions. [2023-12-02 23:08:27,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2023-12-02 23:08:27,853 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:27,854 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:27,854 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:27,854 INFO L229 MonitoredProcess]: Starting monitored process 68 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:27,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Waiting until timeout for monitored process [2023-12-02 23:08:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:31,918 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:32,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:32,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 23:08:32,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:33,190 INFO L134 CoverageAnalysis]: Checked inductivity of 812 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:08:33,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (68)] Ended with exit code 0 [2023-12-02 23:08:45,550 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 23:08:45,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:08:45,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 568 states to 412 states and 568 transitions. [2023-12-02 23:08:45,613 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 568 transitions. [2023-12-02 23:08:45,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-12-02 23:08:45,614 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:08:45,614 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:08:45,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:08:45,615 INFO L229 MonitoredProcess]: Starting monitored process 69 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:08:45,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Waiting until timeout for monitored process [2023-12-02 23:08:49,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:49,802 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:08:50,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:08:50,290 INFO L262 TraceCheckSpWp]: Trace formula consists of 1039 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 23:08:50,292 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:08:51,090 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 406 trivial. 0 not checked. [2023-12-02 23:08:51,129 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (69)] Ended with exit code 0 [2023-12-02 23:09:03,440 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 10.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-12-02 23:09:03,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:03,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 569 states to 413 states and 569 transitions. [2023-12-02 23:09:03,494 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 569 transitions. [2023-12-02 23:09:03,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2023-12-02 23:09:03,495 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:03,495 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:03,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:03,496 INFO L229 MonitoredProcess]: Starting monitored process 70 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:03,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Waiting until timeout for monitored process [2023-12-02 23:09:07,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:07,963 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:08,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:08,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 1050 conjuncts, 32 conjunts are in the unsatisfiable core [2023-12-02 23:09:08,476 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:09,251 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 0 proven. 406 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:09:09,293 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (70)] Ended with exit code 0 [2023-12-02 23:09:11,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:11,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 570 states to 414 states and 570 transitions. [2023-12-02 23:09:11,775 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 570 transitions. [2023-12-02 23:09:11,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-12-02 23:09:11,776 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:11,776 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:11,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:11,777 INFO L229 MonitoredProcess]: Starting monitored process 71 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:11,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Waiting until timeout for monitored process [2023-12-02 23:09:16,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:16,103 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:16,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:16,591 INFO L262 TraceCheckSpWp]: Trace formula consists of 1061 conjuncts, 33 conjunts are in the unsatisfiable core [2023-12-02 23:09:16,594 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:17,422 INFO L134 CoverageAnalysis]: Checked inductivity of 900 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:09:17,463 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (71)] Ended with exit code 0 [2023-12-02 23:09:19,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:19,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 571 states to 415 states and 571 transitions. [2023-12-02 23:09:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 571 transitions. [2023-12-02 23:09:19,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-12-02 23:09:19,973 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:19,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:19,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:19,974 INFO L229 MonitoredProcess]: Starting monitored process 72 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:19,975 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Waiting until timeout for monitored process [2023-12-02 23:09:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:24,438 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:24,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:24,966 INFO L262 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 23:09:24,968 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:25,779 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:09:25,822 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (72)] Ended with exit code 0 [2023-12-02 23:09:38,472 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 23:09:38,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:38,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 416 states and 572 transitions. [2023-12-02 23:09:38,524 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 572 transitions. [2023-12-02 23:09:38,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-12-02 23:09:38,524 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:38,524 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:38,524 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:38,525 INFO L229 MonitoredProcess]: Starting monitored process 73 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:38,526 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Waiting until timeout for monitored process [2023-12-02 23:09:43,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:43,428 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:09:43,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:09:43,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 1083 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:09:43,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:09:44,749 INFO L134 CoverageAnalysis]: Checked inductivity of 961 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2023-12-02 23:09:44,792 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (73)] Ended with exit code 0 [2023-12-02 23:09:57,466 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 23:09:57,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:09:57,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 417 states and 573 transitions. [2023-12-02 23:09:57,520 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 573 transitions. [2023-12-02 23:09:57,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2023-12-02 23:09:57,521 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:09:57,521 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:09:57,521 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:09:57,522 INFO L229 MonitoredProcess]: Starting monitored process 74 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:09:57,523 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Waiting until timeout for monitored process [2023-12-02 23:10:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:02,455 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:03,011 INFO L262 TraceCheckSpWp]: Trace formula consists of 1094 conjuncts, 34 conjunts are in the unsatisfiable core [2023-12-02 23:10:03,013 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 0 proven. 465 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:10:03,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (74)] Ended with exit code 0 [2023-12-02 23:10:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:06,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 574 states to 418 states and 574 transitions. [2023-12-02 23:10:06,590 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 574 transitions. [2023-12-02 23:10:06,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2023-12-02 23:10:06,590 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:06,590 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:06,590 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:06,591 INFO L229 MonitoredProcess]: Starting monitored process 75 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:06,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Waiting until timeout for monitored process [2023-12-02 23:10:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:11,503 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:12,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:12,048 INFO L262 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 35 conjunts are in the unsatisfiable core [2023-12-02 23:10:12,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:12,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 0 proven. 496 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:10:12,975 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (75)] Ended with exit code 0 [2023-12-02 23:10:15,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 419 states and 575 transitions. [2023-12-02 23:10:15,751 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 575 transitions. [2023-12-02 23:10:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-12-02 23:10:15,752 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:15,752 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:15,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:15,753 INFO L229 MonitoredProcess]: Starting monitored process 76 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:15,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Waiting until timeout for monitored process [2023-12-02 23:10:20,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:20,673 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:21,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 23:10:21,228 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:22,129 INFO L134 CoverageAnalysis]: Checked inductivity of 1056 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:10:22,175 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (76)] Ended with exit code 0 [2023-12-02 23:10:24,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:24,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 420 states and 576 transitions. [2023-12-02 23:10:24,874 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 576 transitions. [2023-12-02 23:10:24,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-12-02 23:10:24,874 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:24,874 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:24,874 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:24,875 INFO L229 MonitoredProcess]: Starting monitored process 77 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:24,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Waiting until timeout for monitored process [2023-12-02 23:10:29,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:29,991 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:30,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:30,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 1127 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 23:10:30,551 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:31,516 INFO L134 CoverageAnalysis]: Checked inductivity of 1089 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2023-12-02 23:10:31,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (77)] Ended with exit code 0 [2023-12-02 23:10:34,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:34,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 421 states and 577 transitions. [2023-12-02 23:10:34,493 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 577 transitions. [2023-12-02 23:10:34,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2023-12-02 23:10:34,494 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:34,494 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:34,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:34,495 INFO L229 MonitoredProcess]: Starting monitored process 78 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:34,495 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Waiting until timeout for monitored process [2023-12-02 23:10:39,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:39,602 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:40,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:40,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 1138 conjuncts, 36 conjunts are in the unsatisfiable core [2023-12-02 23:10:40,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:10:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1123 backedges. 0 proven. 528 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:10:41,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (78)] Ended with exit code 0 [2023-12-02 23:10:54,242 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 23:10:54,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:10:54,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 578 states to 422 states and 578 transitions. [2023-12-02 23:10:54,301 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 578 transitions. [2023-12-02 23:10:54,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-12-02 23:10:54,302 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:10:54,302 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:10:54,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:10:54,302 INFO L229 MonitoredProcess]: Starting monitored process 79 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:10:54,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Waiting until timeout for monitored process [2023-12-02 23:10:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:59,117 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:10:59,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:10:59,655 INFO L262 TraceCheckSpWp]: Trace formula consists of 1149 conjuncts, 37 conjunts are in the unsatisfiable core [2023-12-02 23:10:59,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:00,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 561 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:11:00,675 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (79)] Ended with exit code 0 [2023-12-02 23:11:13,551 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 23:11:13,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:13,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 423 states and 579 transitions. [2023-12-02 23:11:13,604 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 579 transitions. [2023-12-02 23:11:13,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2023-12-02 23:11:13,604 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:13,604 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:13,604 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:13,605 INFO L229 MonitoredProcess]: Starting monitored process 80 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:13,606 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Waiting until timeout for monitored process [2023-12-02 23:11:18,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:18,703 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:19,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 1160 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 23:11:19,277 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 1190 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:11:20,306 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (80)] Ended with exit code 0 [2023-12-02 23:11:23,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 424 states and 580 transitions. [2023-12-02 23:11:23,350 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 580 transitions. [2023-12-02 23:11:23,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-12-02 23:11:23,351 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:23,351 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:23,351 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:23,352 INFO L229 MonitoredProcess]: Starting monitored process 81 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:23,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Waiting until timeout for monitored process [2023-12-02 23:11:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:28,830 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:29,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:29,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 1171 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-02 23:11:29,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:30,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 0 proven. 630 refuted. 0 times theorem prover too weak. 595 trivial. 0 not checked. [2023-12-02 23:11:30,476 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (81)] Ended with exit code 0 [2023-12-02 23:11:33,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2023-12-02 23:11:33,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 425 states and 581 transitions. [2023-12-02 23:11:33,642 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 581 transitions. [2023-12-02 23:11:33,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2023-12-02 23:11:33,643 INFO L423 CodeCheckObserver]: Error Path is FOUND. [2023-12-02 23:11:33,643 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-02 23:11:33,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 [2023-12-02 23:11:33,644 INFO L229 MonitoredProcess]: Starting monitored process 82 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-02 23:11:33,645 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Waiting until timeout for monitored process [2023-12-02 23:11:39,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:39,436 ERROR L592 CodeCheckObserver]: First Tracecheck threw exception Proofs are not supported [2023-12-02 23:11:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-02 23:11:39,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 1182 conjuncts, 38 conjunts are in the unsatisfiable core [2023-12-02 23:11:39,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-02 23:11:41,070 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 0 proven. 595 refuted. 0 times theorem prover too weak. 666 trivial. 0 not checked. [2023-12-02 23:11:41,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_07f60c22-097e-447e-a140-4a5a80ed139a/bin/ukojak-verify-Qdu7aM0XO9/cvc4 --incremental --print-success --lang smt (82)] Ended with exit code 0